treatments-xml/data/82/63/71/82637172777EA17061B8B5CF1855F989.xml

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<mods:title id="CDEC19F5C933F425CA300E24937B3D96">Endemism and long distance dispersal in the waterfleas of Easter Island</mods:title>
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<mods:namePart id="A0EB21B8E3657B6DB20BAB13877A15EC">Damme, Kay Van</mods:namePart>
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<heading id="513D7708777EA17F61B8B5CF1AA3FCF4" bold="true" box="[151,447,750,776]" fontSize="11" level="1" pageId="2" pageNumber="253" reason="1">
<emphasis id="38BE1C76777EA17F61B8B5CF1AA3FCF4" bold="true" box="[151,447,750,776]" pageId="2" pageNumber="253">
<taxonomicName id="CDCABBE7777EA17F61B8B5CF1A46FCF4" box="[151,346,750,776]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="2" pageNumber="253" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777EA17F61B8B5CF1A46FCF4" bold="true" box="[151,346,750,776]" italics="true" pageId="2" pageNumber="253">Ovalona pascua</emphasis>
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<taxonomicNameLabel id="238DA10D777EA17F604EB5CF1AA3FCF4" box="[353,447,750,776]" pageId="2" pageNumber="253" rank="species">sp. nov.</taxonomicNameLabel>
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<paragraph id="0A75C064777EA17F61B8B4301A16FCD6" blockId="2.[151,447,750,810]" box="[151,266,785,810]" pageId="2" pageNumber="253">
(
<figureCitation id="92F1DCE1777EA17F61B0B4301A1DFCD6" box="[159,257,785,810]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStart-4="FIGURE 5" captionStartId-0="5.[151,250,1915,1937]" captionStartId-1="6.[151,250,1550,1572]" captionStartId-2="8.[151,250,1892,1914]" captionStartId-3="9.[151,250,1851,1873]" captionStartId-4="12.[151,250,1315,1337]" captionTargetBox-0="[178,1407,214,1913]" captionTargetBox-1="[150,1436,193,1528]" captionTargetBox-2="[168,1418,199,1860]" captionTargetBox-3="[210,1363,205,1826]" captionTargetBox-4="[156,1424,312,1284]" captionTargetId-0="figure@5.[167,1415,194,1913]" captionTargetId-1="figure@6.[150,1436,193,1529]" captionTargetId-2="figure@8.[162,1428,193,1873]" captionTargetId-3="figure@9.[200,1374,193,1837]" captionTargetId-4="figure@12.[150,1436,301,1293]" captionTargetPageId-0="5" captionTargetPageId-1="6" captionTargetPageId-2="8" captionTargetPageId-3="9" captionTargetPageId-4="12" captionText-0="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." captionText-1="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." captionText-2="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." captionText-3="FIGURE 4. Ovalona pascua sp. nov. Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. B, comparison O. pascua sp. nov adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2015), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b), O. weinecki after Frey (1988). Not to scale (B)." captionText-4="FIGURE 5. Ovalona pascua sp. nov. adult female postabdomen shape (variation, four specimens from different localities, from top to bottom Hanga Tuu Hata, Vai-Atara, Teravaka, Hanga Rao), compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2001 b), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b) and O. weinecki after Van Damme &amp; Dumont (2008 a). Not to scale." httpUri-0="https://zenodo.org/record/258156/files/figure.png" httpUri-1="https://zenodo.org/record/258157/files/figure.png" httpUri-2="https://zenodo.org/record/258158/files/figure.png" httpUri-3="https://zenodo.org/record/258159/files/figure.png" httpUri-4="https://zenodo.org/record/258160/files/figure.png" pageId="2" pageNumber="253">Figs 1–5</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="42D093EF777EA17F61B8B4781F48FC53" pageId="2" pageNumber="253" type="reference_group">
<paragraph id="0A75C064777EA17F61B8B4781909FC73" blockId="2.[151,1436,857,943]" pageId="2" pageNumber="253">
<taxonomicName id="CDCABBE7777EA17F61B8B47818D3FC93" authority="Studer, 1878 in Dumont &amp; Martens" authorityName="Studer, 1878 in Dumont &amp; Martens" authorityYear="1996" box="[151,975,857,879]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="2" pageNumber="253" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C76777EA17F61B8B4781A2FFC93" box="[151,307,857,879]" italics="true" pageId="2" pageNumber="253">Alona weinecki</emphasis>
Studer, 
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<bibRefCitation id="6E5BBD95777EA17F60F6B47B18D3FC93" author="Dumont" box="[473,975,857,879]" pageId="2" pageNumber="253" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">
Dumont &amp; Martens (1996: pp. 84–91; 
<figureCitation id="92F1DCE1777EA17F624EB4781880FC93" box="[865,924,857,879]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="2" pageNumber="253">Figs 1</figureCitation>
–35)
</bibRefCitation>
</taxonomicName>
and subsequent publications on Easter 
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(
<bibRefCitation id="6E5BBD95777EA17F61E2B4581A81FC73" author="Dumont" box="[205,413,887,912]" pageId="2" pageNumber="253" refString="Dumont, H. J., Cocquyt, C., Fontugne, M., Arnold, M., Reyss, J. L., Bloemendal, J., Oldfield, F., Steenbergen, C. L. M., Korthals, H. J. &amp; Zeeb, B. A. (1998) The end of moai quarrying and its effect on Lake Rano Raraku, Easter Island. Journal of Paleolimnology, 20, 409 - 422. http: // dx. doi. org / 10.1023 / A: 1008012720960" type="journal article" year="1998">
Dumont 
<emphasis id="38BE1C76777EA17F6007B4581A7CFC6C" box="[296,352,887,912]" italics="true" pageId="2" pageNumber="253">et al.</emphasis>
1998
</bibRefCitation>
; no figures)
</paragraph>
<paragraph id="0A75C064777EA17F61B8B4BB1F48FC53" blockId="2.[151,1436,857,943]" box="[151,1108,921,943]" pageId="2" pageNumber="253">
not 
<taxonomicName id="CDCABBE7777EA17F6192B4B81F48FC53" ID-CoL="4B9M9" authority="(Studer, 1878) sensu Van Damme &amp; Dumont" authorityName="(Studer, 1878) sensu Van Damme &amp; Dumont" authorityYear="2008" box="[189,1108,921,943]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="2" pageNumber="253" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C76777EA17F6192B4B81A68FC53" box="[189,372,921,943]" italics="true" pageId="2" pageNumber="253">Ovalona weinecki</emphasis>
(Studer, 1878) 
<emphasis id="38BE1C76777EA17F633EB4BB1955FC53" box="[529,585,922,943]" italics="true" pageId="2" pageNumber="253">sensu</emphasis>
<bibRefCitation id="6E5BBD95777EA17F6360B4BB188DFC53" author="Van" box="[591,913,921,943]" pageId="2" pageNumber="253" refString="Van Damme, K. &amp; Dumont, H. J. (2008 a) Further division of Alona Baird, 1843: separation and position of Coronatella Dybowski &amp; Grochowski and Ovalona gen. n. (Crustacea: Cladocera). Zootaxa, 1960, 1 - 44." type="journal article" year="2008" yearSuffix="a">
Van 
<bibRefCitation id="6E5BBD95777EA17F6352B4BB188DFC53" author="Damme" box="[637,913,921,943]" pageId="2" pageNumber="253" refString="Van Damme, K. &amp; Dumont, H. J. (2008 a) Further division of Alona Baird, 1843: separation and position of Coronatella Dybowski &amp; Grochowski and Ovalona gen. n. (Crustacea: Cladocera). Zootaxa, 1960, 1 - 44." type="journal article" year="2008" yearSuffix="a">Damme &amp; Dumont (2008a</bibRefCitation>
</bibRefCitation>
: pp. 4–9; 
<figureCitation id="92F1DCE1777EA17F62DBB4B81F50FC53" box="[1012,1100,921,943]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStartId-0="5.[151,250,1915,1937]" captionStartId-1="6.[151,250,1550,1572]" captionTargetBox-0="[178,1407,214,1913]" captionTargetBox-1="[150,1436,193,1528]" captionTargetId-0="figure@5.[167,1415,194,1913]" captionTargetId-1="figure@6.[150,1436,193,1529]" captionTargetPageId-0="5" captionTargetPageId-1="6" captionText-0="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." captionText-1="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." httpUri-0="https://zenodo.org/record/258156/files/figure.png" httpUri-1="https://zenodo.org/record/258157/files/figure.png" pageId="2" pageNumber="253">Figs 1–2</figureCitation>
)
</taxonomicName>
</paragraph>
</subSubSection>
<subSubSection id="42D093EF777EA17F61B8B4FD182EFB9C" pageId="2" pageNumber="253" type="etymology">
<paragraph id="0A75C064777EA17F61B8B4FD182EFB9C" blockId="2.[151,1436,988,2021]" pageId="2" pageNumber="253">
<emphasis id="38BE1C76777EA17F61B8B4FD1A02FC09" bold="true" box="[151,286,988,1013]" pageId="2" pageNumber="253">Etymology.</emphasis>
The epitheton 
<taxonomicName id="CDCABBE7777EA17F60E6B4FC1904FC08" box="[457,536,989,1012]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="2" pageNumber="253" phylum="Arthropoda" rank="species" species="pascua">
<emphasis id="38BE1C76777EA17F60E6B4FC1904FC08" box="[457,536,989,1012]" italics="true" pageId="2" pageNumber="253">pascua</emphasis>
</taxonomicName>
for Easter, as the species is described here from Easter 
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. The genus name 
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<emphasis id="38BE1C76777EA17F61B8B4DE1BE4FBE4" box="[151,248,1023,1048]" italics="true" pageId="2" pageNumber="253">Ovalona</emphasis>
Van Damme &amp; Dumont, 2008
</taxonomicName>
refers to the oval egg-like shape of the habitus in lateral view, combined with the name of the original genus, 
<taxonomicName id="CDCABBE7777EA17F631BB3051F6BFBC0" authority="Baird, 1843 (Van Damme &amp; Dumont 2008a)" authorityName="Baird, 1843 (Van Damme &amp; Dumont" authorityYear="2008" box="[564,1143,1060,1085]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="2" pageNumber="253" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C76777EA17F631BB305196BFBC1" box="[564,631,1060,1085]" italics="true" pageId="2" pageNumber="253">Alona</emphasis>
Baird, 1843 (
<bibRefCitation id="6E5BBD95777EA17F623EB3051F6CFBC0" author="Van" box="[785,1136,1060,1084]" pageId="2" pageNumber="253" refString="Van Damme, K. &amp; Dumont, H. J. (2008 a) Further division of Alona Baird, 1843: separation and position of Coronatella Dybowski &amp; Grochowski and Ovalona gen. n. (Crustacea: Cladocera). Zootaxa, 1960, 1 - 44." type="journal article" year="2008" yearSuffix="a">Van Damme &amp; Dumont 2008a</bibRefCitation>
)
</taxonomicName>
. Older 
<taxonomicName id="CDCABBE7777EA17F65E6B3041E27FBC0" box="[1225,1339,1061,1084]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="2" pageNumber="253" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777EA17F65E6B3041E27FBC0" box="[1225,1339,1061,1084]" italics="true" pageId="2" pageNumber="253">O. pascua</emphasis>
</taxonomicName>
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<emphasis id="38BE1C76777EA17F646DB3051E89FBC1" bold="true" box="[1346,1429,1060,1085]" pageId="2" pageNumber="253">sp. nov</emphasis>
.
</taxonomicNameLabel>
adult females have a pronounced oval shape in lateral view.
</paragraph>
</subSubSection>
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<paragraph id="0A75C064777EA17F61E8B34D1AE4FB30" blockId="2.[151,1436,988,2021]" pageId="2" pageNumber="253">
<materialsCitation id="BAA2CA39777EA17F61E8B34D1AE4FB30" ID-GBIF-Occurrence="1291823153" collectingDate="1990-08-18" collectorName="Leg. H. J. &amp; K. Martens" country="Iceland" latitude="-27.15" location="Hanga Roa village" longLatPrecision="6" longitude="-109.4167" pageId="2" pageNumber="253" specimenCount="1" typeStatus="holotype">
<emphasis id="38BE1C76777EA17F61E8B34D1A41FB79" bold="true" box="[199,349,1132,1157]" pageId="2" pageNumber="253">
<typeStatus id="D5717EC6777EA17F61E8B34D1A1EFB79" box="[199,258,1132,1157]" pageId="2" pageNumber="253">Type</typeStatus>
locality
</emphasis>
. Walled pool close to road, North of 
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, West of Easter 
<collectingCountry id="72DD80F4777EA17F65AEB34D1FD4FB79" box="[1153,1224,1132,1157]" name="Iceland" pageId="2" pageNumber="253">Island</collectingCountry>
, 
<collectorName id="A73FA5B2777EA17F65FCB34C1E26FB78" box="[1235,1338,1133,1157]" pageId="2" pageNumber="253">Leg. H.J.</collectorName>
Dumont and 
<collectorName id="A73FA5B2777EA17F61E8B3B11A54FB5B" box="[199,328,1168,1191]" pageId="2" pageNumber="253">K. Martens</collectorName>
, 
<collectingDate id="6E301F4C777EA17F607BB3B11AFBFB54" box="[340,487,1168,1192]" pageId="2" pageNumber="253" value="1990-08-18">
<date id="7E74E6A4777EA17F607BB3B11AFBFB54" box="[340,487,1168,1192]" pageId="2" pageNumber="253" value="1990-08-18">18.VIII.1990</date>
</collectingDate>
(sample # 
<quantity id="CD326D81777EA17F6372B3B11994FB54" box="[605,648,1167,1192]" metricMagnitude="-2" metricUnit="m" metricValue="5.08" pageId="2" pageNumber="253" unit="in" value="2.0">2 in</quantity>
<bibRefCitation id="6E5BBD95777EA17F63BFB3B118ACFB54" author="Dumont" box="[656,944,1167,1192]" pageId="2" pageNumber="253" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
). Detailed coordinates unknown, for Hanga Roa: 
<geoCoordinate id="6FFEA6A3777EA17F61FCB3951A4DFB30" box="[211,337,1204,1229]" direction="south" orientation="latitude" pageId="2" pageNumber="253" precision="5" value="-27.15">27.1500° S</geoCoordinate>
, 
<geoCoordinate id="6FFEA6A3777EA17F6072B3951AE8FB30" box="[349,500,1204,1229]" direction="west" orientation="longitude" pageId="2" pageNumber="253" precision="5" value="-109.4167">109.4167° W</geoCoordinate>
.
</materialsCitation>
</paragraph>
<paragraph id="0A75C064777EA17F61E8B3F61FB9FB0C" blockId="2.[151,1436,988,2021]" box="[199,1189,1239,1264]" pageId="2" pageNumber="253">
<emphasis id="38BE1C76777EA17F61E8B3F61A71FB0C" bold="true" box="[199,365,1239,1264]" pageId="2" pageNumber="253">Type material</emphasis>
. 
<emphasis id="38BE1C76777EA17F6053B3F61AF5FB0C" bold="true" box="[380,489,1239,1264]" pageId="2" pageNumber="253">Holotype</emphasis>
(RBIN INV.138001), ovigerous adult parthenogenetic female.
</paragraph>
<paragraph id="0A75C064777EA17F61E8B3DD1FB7FAC4" blockId="2.[151,1436,988,2021]" pageId="2" pageNumber="253">
<emphasis id="38BE1C76777EA17F61E8B3DD1A23FAE9" bold="true" box="[199,319,1276,1301]" pageId="2" pageNumber="253">Paratypes</emphasis>
(RBIN INV.138002) four adult parthenogenetic females and two ephippia in a separate slide and one ephippial female RBIN INV.138003) and adult male (RBIN INV.138004), each in a slide
</paragraph>
<paragraph id="0A75C064777EA17F61E8B2651924FA34" blockId="2.[151,1436,988,2021]" pageId="2" pageNumber="253">
<emphasis id="38BE1C76777EA17F61E8B2651A48FAA1" bold="true" box="[199,340,1348,1373]" pageId="2" pageNumber="253">Type series</emphasis>
in four slides mounted in glycerol-formaldehyde and one tube with wet material in 4% formaldehyde.Wet material one tube from type locality with ca. 
<materialsCitation id="BAA2CA39777EA17F62BFB2461928FA34" ID-GBIF-Occurrence="1291823155" collectionCode="RBIN, INV" country="Belgium" location="Royal Belgian Institute" municipality="Natural Sciences" pageId="2" pageNumber="253" specimenCount="50" stateProvince="Brussels" typeStatus="holotype">
<specimenCount id="1CCC0BED777EA17F62BFB2461F31FA7C" box="[912,1069,1383,1408]" pageId="2" pageNumber="253" type="generic">50 specimens</specimenCount>
covering all life stages, in 4% formaldehyde (
<collectionCode id="6CDB58A1777EA17F6068B2AD1A90FA58" box="[327,396,1420,1444]" pageId="2" pageNumber="253">RBIN</collectionCode>
<collectionCode id="6CDB58A1777EA17F60B5B2AD1AD3FA59" box="[410,463,1420,1445]" country="United Kingdom" httpUri="http://biocol.org/urn:lsid:biocol.org:col:13356" name="Inverness Museum and Art Gallery" pageId="2" pageNumber="253">INV</collectionCode>
.138005). All 
<typeStatus id="D5717EC6777EA17F635DB2AC19BEFA59" box="[626,674,1421,1445]" pageId="2" pageNumber="253">type</typeStatus>
specimens deposited at the 
<location id="0F1596BF777EA17F62D3B2AD1E11FA59" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F62D3B2AD1E11FA59" box="[1020,1293,1420,1445]" country="Belgium" municipality="Natural Sciences" name="Royal Belgian Institute" pageId="2" pageNumber="253" stateProvince="Brussels">Royal Belgian Institute</location>
for 
<collectingMunicipality id="EA115A1E777EA17F6467B2AD1BE5FA34" pageId="2" pageNumber="253">Natural Sciences</collectingMunicipality>
(
<collectionCode id="6CDB58A1777EA17F6027B2911A4CFA34" box="[264,336,1456,1480]" pageId="2" pageNumber="253">RBIN</collectionCode>
), 
<collectingRegion id="C80E0E86777EA17F604CB28E1AD9FA34" box="[355,453,1455,1480]" country="Belgium" name="Region de Bruxelles-Capitale" pageId="2" pageNumber="253">Brussels</collectingRegion>
, 
<collectingCountry id="72DD80F4777EA17F60FFB28E1928FA34" box="[464,564,1455,1480]" name="Belgium" pageId="2" pageNumber="253">Belgium</collectingCountry>
</materialsCitation>
.
</paragraph>
<paragraph id="0A75C064777EA17E61E8B2F51980FE2C" blockId="2.[151,1436,988,2021]" lastBlockId="3.[151,1437,151,2013]" lastPageId="3" lastPageNumber="254" pageId="2" pageNumber="253">
<materialsCitation id="BAA2CA39777EA17F61E8B2F51FEEF980" ID-GBIF-Occurrence="1291823147" collectingDate="1990-08-18" collectionCode="RBIN, INV" collectorName="H. J. Dumont &amp; K. Martens &amp; K. Desender &amp; Accession Number &amp; Te Ihu" county="Easter Island" location="All" municipality="Hanga Roa" pageId="2" pageNumber="253" specimenCount="1">
<emphasis id="38BE1C76777EA17F61E8B2F5186AFA11" bold="true" box="[199,886,1491,1517]" pageId="2" pageNumber="253">
Additional specimens examined. 
<taxonomicName id="CDCABBE7777EA17F6376B2F2180AFA17" box="[601,790,1491,1516]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="2" pageNumber="253" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777EA17F6376B2F2180AFA17" bold="true" box="[601,790,1491,1516]" italics="true" pageId="2" pageNumber="253">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777EA17F620FB2F5186AFA11" box="[800,886,1492,1517]" pageId="2" pageNumber="253" rank="species">sp. nov</taxonomicNameLabel>
</emphasis>
. 
<location id="0F1596BF777EA17F62A8B2F518B7FA11" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F62A8B2F518B7FA11" box="[903,939,1492,1517]" county="Easter Island" municipality="Hanga Roa" name="All" pageId="2" pageNumber="253">All</location>
surface samples from 1987 (
<collectorName id="A73FA5B2777EA17F642EB2F51E84FA10" box="[1281,1432,1492,1516]" pageId="2" pageNumber="253">H.J. Dumont</collectorName>
; HJD), 1990 (HJD, 
<collectorName id="A73FA5B2777EA17F605FB2D91AEFF9F3" box="[368,499,1528,1551]" pageId="2" pageNumber="253">K. Martens</collectorName>
; KM) and 1993 (
<collectorName id="A73FA5B2777EA17F6395B2D91850F9EC" box="[698,844,1527,1552]" pageId="2" pageNumber="253">K. Desender</collectorName>
; KD) in the 
<location id="0F1596BF777EA17F62F3B2D91F24F9F3" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F62F3B2D91F24F9F3" box="[988,1080,1528,1551]" county="Easter Island" municipality="Hanga Roa" name="Dumont" pageId="2" pageNumber="253">Dumont</location>
collection at 
<collectionCode id="6CDB58A1777EA17F65FBB2D91E0BF9F3" box="[1236,1303,1528,1551]" pageId="2" pageNumber="253">RBIN</collectionCode>
(
<collectorName id="A73FA5B2777EA17F6408B2D61BEFF9C9" pageId="2" pageNumber="253">Accession Number</collectorName>
for the collection is 
<collectionCode id="6CDB58A1777EA17F60C0B13C193DF9C8" box="[495,545,1565,1588]" country="United Kingdom" httpUri="http://biocol.org/urn:lsid:biocol.org:col:13356" name="Inverness Museum and Art Gallery" pageId="2" pageNumber="253">INV</collectionCode>
IG 32.094) from 
<location id="0F1596BF777EA17F63D7B13C1892F9C9" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F63D7B13C1892F9C9" box="[760,910,1564,1589]" county="Easter Island" municipality="Hanga Roa" name="Easter Island" pageId="2" pageNumber="253">Easter Island</location>
were studied. 
<location id="0F1596BF777EA17F6511B13D1FABF9C9" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F6511B13D1FABF9C9" box="[1086,1207,1564,1589]" county="Easter Island" municipality="Hanga Roa" name="Specimens" pageId="2" pageNumber="253">Specimens</location>
were retrieved and studied from the following localities (details after 
<bibRefCitation id="6E5BBD95777EA17F63F5B1611F1DF9A4" author="Dumont" box="[730,1025,1599,1624]" pageId="2" pageNumber="253" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">
<location id="0F1596BF777EA17F63F5B161182AF9AB" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F63F5B161182AF9AB" box="[730,822,1600,1623]" county="Easter Island" municipality="Hanga Roa" name="Dumont" pageId="2" pageNumber="253">Dumont</location>
&amp; 
<location id="0F1596BF777EA17F6270B16118A7F9AB" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F6270B16118A7F9AB" box="[863,955,1600,1623]" county="Easter Island" municipality="Hanga Roa" name="Martens" pageId="2" pageNumber="253">Martens</location>
1996
</bibRefCitation>
): shallow pool in walled compound near 
<collectorName id="A73FA5B2777EA17F61E1B1441A0AF981" box="[206,278,1636,1661]" pageId="2" pageNumber="253">
<location id="0F1596BF777EA17F61E1B1441A0AF981" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F61E1B1441A0AF981" box="[206,278,1636,1661]" county="Easter Island" municipality="Hanga Roa" name="Te Ihu" pageId="2" pageNumber="253">Te Ihu</location>
</collectorName>
o 
<location id="0F1596BF777EA17F601CB1441AB5F980" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F601CB1441AB5F980" box="[307,425,1637,1660]" county="Easter Island" municipality="Hanga Roa" name="Motu Pare" pageId="2" pageNumber="253">Motu Pare</location>
(North of 
<collectingMunicipality id="EA115A1E777EA17F630FB14419BEF980" box="[544,674,1636,1661]" pageId="2" pageNumber="253">Hanga Roa</collectingMunicipality>
), 
<collectingCounty id="E314B8E8777EA17F639AB1441855F981" box="[693,841,1636,1661]" pageId="2" pageNumber="253">Easter Island</collectingCounty>
, Coll. by HJD and KM, 
<date id="7E74E6A4777EA17F6572B1451FEEF980" box="[1117,1266,1636,1660]" pageId="2" pageNumber="253" value="1990-08-18">
<collectingDate id="6E301F4C777EA17F6572B1451FEEF980" box="[1117,1266,1636,1660]" pageId="2" pageNumber="253" value="1990-08-18">18.VIII.1990</collectingDate>
</date>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777EA17F65D2B1441E4CF95C" ID-GBIF-Occurrence="1291823154" collectingDate="1990-08-18" country="Iceland" county="Hanga Roa" location="Large" municipality="Pto Espolon" pageId="2" pageNumber="253" specimenCount="1">
<location id="0F1596BF777EA17F65D2B1441E22F981" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F65D2B1441E22F981" box="[1277,1342,1637,1661]" country="Iceland" county="Hanga Roa" municipality="Pto Espolon" name="Large" pageId="2" pageNumber="253">Large</location>
shallow pool, opposite to 
<collectingMunicipality id="EA115A1E777EA17F604EB1A81AF7F95C" box="[353,491,1671,1696]" pageId="2" pageNumber="253">Pto Espolon</collectingMunicipality>
(North of 
<collectingCounty id="E314B8E8777EA17F6345B1A819F1F95C" box="[618,749,1672,1697]" pageId="2" pageNumber="253">Hanga Roa</collectingCounty>
), Easter 
<collectingCountry id="72DD80F4777EA17F627CB1A61886F95C" box="[851,922,1671,1696]" name="Iceland" pageId="2" pageNumber="253">Island</collectingCountry>
, Coll. by HJD and KM, 
<collectingDate id="6E301F4C777EA17F6595B1A91E4CF95C" box="[1210,1360,1672,1696]" pageId="2" pageNumber="253" value="1990-08-18">
<date id="7E74E6A4777EA17F6595B1A91E4CF95C" box="[1210,1360,1672,1696]" pageId="2" pageNumber="253" value="1990-08-18">18.VIII.1990</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777EA17F6472B1A91FF0F938" ID-GBIF-Occurrence="1291823146" collectingDate="1990-08-18" country="Iceland" location="Stone" municipality="Hanga Roa" pageId="2" pageNumber="253" specimenCount="1">
<location id="0F1596BF777EA17F6472B1A91E80F95C" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F6472B1A91E80F95C" box="[1373,1436,1672,1696]" country="Iceland" municipality="Hanga Roa" name="Stone" pageId="2" pageNumber="253">Stone</location>
well with drinking water (North of 
<collectingMunicipality id="EA115A1E777EA17F6330B18C19BCF938" box="[543,672,1708,1733]" pageId="2" pageNumber="253">Hanga Roa</collectingMunicipality>
), Easter 
<collectingCountry id="72DD80F4777EA17F622FB18D185BF939" box="[768,839,1708,1733]" name="Iceland" pageId="2" pageNumber="253">Island</collectingCountry>
, Coll. by HJD and KM, 
<collectingDate id="6E301F4C777EA17F6579B18D1FF0F938" box="[1110,1260,1708,1732]" pageId="2" pageNumber="253" value="1990-08-18">
<date id="7E74E6A4777EA17F6579B18D1FF0F938" box="[1110,1260,1708,1732]" pageId="2" pageNumber="253" value="1990-08-18">18.VIII.1990</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777EA17F65D9B18D1E47F914" ID-GBIF-Occurrence="1291823158" collectingDate="1990-08-18" country="Iceland" county="Hanga Roa" location="Stagnant" municipality="Anu Ipu Maengo" pageId="2" pageNumber="253" specimenCount="1">
<location id="0F1596BF777EA17F65D9B18D1E4BF938" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F65D9B18D1E4BF938" box="[1270,1367,1708,1732]" country="Iceland" county="Hanga Roa" municipality="Anu Ipu Maengo" name="Stagnant" pageId="2" pageNumber="253">Stagnant</location>
water in cave at 
<collectingMunicipality id="EA115A1E777EA17F6038B1F11AC3F915" box="[279,479,1744,1769]" pageId="2" pageNumber="253">Anu Ipu Maengo</collectingMunicipality>
(North of 
<collectingCounty id="E314B8E8777EA17F634CB1F019F5F914" box="[611,745,1744,1769]" pageId="2" pageNumber="253">Hanga Roa</collectingCounty>
), Easter 
<collectingCountry id="72DD80F4777EA17F627DB1EE1885F914" box="[850,921,1743,1768]" name="Iceland" pageId="2" pageNumber="253">Island</collectingCountry>
, Coll. by HJD and KM, 
<collectingDate id="6E301F4C777EA17F65E9B1F11E47F914" box="[1222,1371,1744,1768]" pageId="2" pageNumber="253" value="1990-08-18">
<date id="7E74E6A4777EA17F65E9B1F11E47F914" box="[1222,1371,1744,1768]" pageId="2" pageNumber="253" value="1990-08-18">18.VIII.1990</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777EA17F6444B1F01E84F8F0" ID-GBIF-Occurrence="1291823160" collectingDate="1990-08-18" country="Iceland" county="Hanga Roa" location="Two" municipality="Maungo Roiho" pageId="2" pageNumber="253" specimenCount="1">
<location id="0F1596BF777EA17F6444B1F01E80F914" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F6444B1F01E80F914" box="[1387,1436,1745,1768]" country="Iceland" county="Hanga Roa" municipality="Maungo Roiho" name="Two" pageId="2" pageNumber="253">Two</location>
eutrophic pools East of 
<collectingMunicipality id="EA115A1E777EA17F608CB1D41957F8F1" box="[419,587,1780,1805]" pageId="2" pageNumber="253">Maungo Roiho</collectingMunicipality>
(North of 
<collectingCounty id="E314B8E8777EA17F63EAB1D4185AF8F0" box="[709,838,1780,1805]" pageId="2" pageNumber="253">Hanga Roa</collectingCounty>
), Easter 
<collectingCountry id="72DD80F4777EA17F6288B1D518F2F8F1" box="[935,1006,1780,1805]" name="Iceland" pageId="2" pageNumber="253">Island</collectingCountry>
, Coll. by HJD and KM, 
<collectingDate id="6E301F4C777EA17F642CB1D51E84F8F0" box="[1283,1432,1780,1804]" pageId="2" pageNumber="253" value="1990-08-18">
<date id="7E74E6A4777EA17F642CB1D51E84F8F0" box="[1283,1432,1780,1804]" pageId="2" pageNumber="253" value="1990-08-18">18.VIII.1990</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777EA17F61B8B0391E85F8CC" ID-GBIF-Occurrence="1291823150" box="[151,1433,1815,1841]" collectingDate="1990-08-21" country="Iceland" location="Stone" municipality="Na Manga" pageId="2" pageNumber="253" specimenCount="1">
<location id="0F1596BF777EA17F61B8B0391BCAF8CC" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F61B8B0391BCAF8CC" box="[151,214,1816,1840]" country="Iceland" municipality="Na Manga" name="Stone" pageId="2" pageNumber="253">Stone</location>
basin at seashore with seawater seeping in, at 
<collectingMunicipality id="EA115A1E777EA17F63F2B0381849F8CD" box="[733,853,1817,1841]" pageId="2" pageNumber="253">Na Manga</collectingMunicipality>
, Easter 
<collectingCountry id="72DD80F4777EA17F6283B03618EFF8CC" box="[940,1011,1815,1840]" name="Iceland" pageId="2" pageNumber="253">Island</collectingCountry>
, Coll. by HJD and KM, 
<collectingDate id="6E301F4C777EA17F642CB0391E85F8CC" box="[1283,1433,1816,1840]" pageId="2" pageNumber="253" value="1990-08-21">
<date id="7E74E6A4777EA17F642CB0391E85F8CC" box="[1283,1433,1816,1840]" pageId="2" pageNumber="253" value="1990-08-21">21.VIII.1990</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777EA17F61B8B01D1A8AF884" ID-GBIF-Occurrence="1291823159" collectingDate="1990-08-21" country="Iceland" county="Rano Raraku" location="Eutrophic" municipality="Hanga Tuu Hata" pageId="2" pageNumber="253" specimenCount="1">
<location id="0F1596BF777EA17F61B8B01D1A19F8A9" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F61B8B01D1A19F8A9" box="[151,261,1852,1877]" country="Iceland" county="Rano Raraku" municipality="Hanga Tuu Hata" name="Eutrophic" pageId="2" pageNumber="253">Eutrophic</location>
stone basin used for watering horses at 
<collectingMunicipality id="EA115A1E777EA17F63FCB01C1892F8A8" box="[723,910,1853,1877]" pageId="2" pageNumber="253">Hanga Tuu Hata</collectingMunicipality>
opposite 
<collectingCounty id="E314B8E8777EA17F62D0B01C1F8FF8A9" box="[1023,1171,1852,1877]" pageId="2" pageNumber="253">Rano Raraku</collectingCounty>
volcano, Coll. by HJD and KM, 
<collectingDate id="6E301F4C777EA17F602FB0411A8AF884" box="[256,406,1888,1912]" pageId="2" pageNumber="253" value="1990-08-21">
<date id="7E74E6A4777EA17F602FB0411A8AF884" box="[256,406,1888,1912]" pageId="2" pageNumber="253" value="1990-08-21">21.VIII.1990</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777EA17F608FB07E1A8AF860" ID-GBIF-Occurrence="1291823148" collectingDate="1990-08-23" collectorName="Vai-Atare, SE" country="Iceland" location="Pool" municipality="Rano Kau" pageId="2" pageNumber="253" specimenCount="1">
<location id="0F1596BF777EA17F608FB07E1AC8F884" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F608FB07E1AC8F884" box="[416,468,1887,1912]" country="Iceland" municipality="Rano Kau" name="Pool" pageId="2" pageNumber="253">Pool</location>
in crevices on basaltic plateau 
<collectorName id="A73FA5B2777EA17F6201B07E18D5F884" box="[814,969,1887,1912]" pageId="2" pageNumber="253">Vai-Atare, SE</collectorName>
of 
<collectingMunicipality id="EA115A1E777EA17F62C2B0401F43F884" box="[1005,1119,1889,1912]" pageId="2" pageNumber="253">Rano Kau</collectingMunicipality>
, Easter 
<collectingCountry id="72DD80F4777EA17F6598B07E1FE2F884" box="[1207,1278,1887,1912]" name="Iceland" pageId="2" pageNumber="253">Island</collectingCountry>
, Coll. by HJD and KM, 
<collectingDate id="6E301F4C777EA17F602FB0A51A8AF860" box="[256,406,1924,1948]" pageId="2" pageNumber="253" value="1990-08-23">
<date id="7E74E6A4777EA17F602FB0A51A8AF860" box="[256,406,1924,1948]" pageId="2" pageNumber="253" value="1990-08-23">23.VIII.1990</date>
</collectingDate>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777EA17E608FB0A4180DFE99" ID-GBIF-Occurrence="1291823152" collectingDate="1993-12-20" collectionCode="RBIN, INV" country="Iceland" lastPageId="3" lastPageNumber="254" location="Between" municipality="Teravaka" pageId="2" pageNumber="253" specimenCount="1">
<location id="0F1596BF777EA17F608FB0A4191EF860" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777EA17F608FB0A4191EF860" box="[416,514,1925,1948]" country="Iceland" municipality="Teravaka" name="Between" pageId="2" pageNumber="253">Between</location>
vegetation in shallow water, 
<collectingMunicipality id="EA115A1E777EA17F6268B0A518ACF861" box="[839,944,1924,1949]" pageId="2" pageNumber="253">Teravaka</collectingMunicipality>
, Easter 
<collectingCountry id="72DD80F4777EA17F6528B0A51F52F861" box="[1031,1102,1924,1949]" name="Iceland" pageId="2" pageNumber="253">Island</collectingCountry>
, Coll. by KD, 
<collectingDate id="6E301F4C777EA17F65C0B0A51E66F860" box="[1263,1402,1924,1948]" pageId="2" pageNumber="253" value="1993-12-20">
<date id="7E74E6A4777EA17F65C0B0A51E66F860" box="[1263,1402,1924,1948]" pageId="2" pageNumber="253" value="1993-12-20">20.XII.1993</date>
</collectingDate>
. In reference to the sample numbers listed in 
<bibRefCitation id="6E5BBD95777EA17F6349B088188EF83C" author="Dumont" box="[614,914,1959,1984]" pageId="2" pageNumber="253" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens (1996)</bibRefCitation>
for the localities above, animals were found in large numbers and of all life stages (&gt;500) in the 1990 samples #1, 2, 4, 9, 10, 24, 28, 38 collected by HJD and KM and the Teravaka samples collected by KD in 1993. Few (10–50), only parthenogenetic females found in samples #6, 7, 23 and none in #12, 13, 14, 18, 19, 20, 21, 25, 38 collected by HJD and KM in 1990, none in samples from Rano Raraku collected by HJD in 1987. Several samples of the 1990 expedition could not be found, likely in the collection but in other boxes (#3, 5, 11, 15, 17, 18, 26, 29). Additional specimens of 
<taxonomicName id="CDCABBE7777FA17E6550B6241FEFFEE0" box="[1151,1267,261,284]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="3" pageNumber="254" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777FA17E6550B6241FEFFEE0" box="[1151,1267,261,284]" italics="true" pageId="3" pageNumber="254">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777FA17E65D1B6251E47FEE1" box="[1278,1371,260,285]" pageId="3" pageNumber="254" rank="species">
<emphasis id="38BE1C76777FA17E65D1B6251E47FEE1" bold="true" box="[1278,1371,260,285]" pageId="3" pageNumber="254">sp. nov.</emphasis>
</taxonomicNameLabel>
were deposited under the accession numbers (numbers between brackets refer to sample numbers in 
<bibRefCitation id="6E5BBD95777FA17E65EEB6091BCCFE99" author="Dumont" pageId="3" pageNumber="254" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
) 
<collectionCode id="6CDB58A1777FA17E61C5B66C1A31FE98" box="[234,301,333,356]" pageId="3" pageNumber="254">RBIN</collectionCode>
<collectionCode id="6CDB58A1777FA17E6010B66D1A6EFE99" box="[319,370,332,357]" country="United Kingdom" httpUri="http://biocol.org/urn:lsid:biocol.org:col:13356" name="Inverness Museum and Art Gallery" pageId="3" pageNumber="254">INV</collectionCode>
.138006 (#4) (wet material, tube)
</materialsCitation>
, RBIN INV.138007 (#9) (wet material, tube), RINB INV.138008-10 (#4) (slides, including males in RBIN INV.138009). 
<taxonomicName id="CDCABBE7777FA17E6293B64E1E80FE74" authority="O.F. Muller, 1776" authorityName="O.F. Muller" authorityYear="1776" box="[956,1436,367,392]" class="Branchiopoda" genus="Chydorus" kingdom="Animalia" order="Diplostraca" pageId="3" pageNumber="254" phylum="Arthropoda" rank="species" species="sphaericus">
<emphasis id="38BE1C76777FA17E6293B64E1FB1FE74" box="[956,1197,367,392]" italics="true" pageId="3" pageNumber="254">Chydorus sphaericus</emphasis>
(O.F. Müller, 1776)
</taxonomicName>
from #2, adult parthenogenetic female, deposited under RBIN INV.138011 (this record cannot be confirmed as only one specimen was found in the samples).
</paragraph>
<paragraph id="0A75C064777FA17E61E8B6FD1943FD79" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="254">
<materialsCitation id="BAA2CA39777FA17E61E8B6FD1E07FDE4" ID-GBIF-Occurrence="1291823151" country="Chile" location="Budapest" pageId="3" pageNumber="254" specimenCount="1" stateProvince="Budapest">
<emphasis id="38BE1C76777FA17E61E8B6FD1918FE09" bold="true" box="[199,516,476,501]" pageId="3" pageNumber="254">Specimens for comparison</emphasis>
. Three adult parthenogenetic females of 
<taxonomicName id="CDCABBE7777FA17E62FAB6FD1F29FE09" box="[981,1077,476,501]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="3" pageNumber="254" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C76777FA17E62FAB6FD1F29FE09" box="[981,1077,476,501]" italics="true" pageId="3" pageNumber="254">Ovalona</emphasis>
</taxonomicName>
sp., labeled as 
<taxonomicName id="CDCABBE7777FA17E65CBB6FD1E80FE09" box="[1252,1436,476,501]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="3" pageNumber="254" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C76777FA17E65CBB6FD1E80FE09" box="[1252,1436,476,501]" italics="true" pageId="3" pageNumber="254">Alona cambouei</emphasis>
</taxonomicName>
from Patagonia, 
<collectingCountry id="72DD80F4777FA17E6075B6DE1A8AFDE4" box="[346,406,511,536]" name="Chile" pageId="3" pageNumber="254">Chile</collectingCountry>
from the Daday Collection, Natural History Museum of 
<collectingRegion id="C80E0E86777FA17E6513B6DE1FBBFDE4" box="[1084,1191,511,536]" country="Hungary" name="Budapest" pageId="3" pageNumber="254">Budapest</collectingRegion>
, 
<collectingCountry id="72DD80F4777FA17E6598B5211E07FDE4" box="[1207,1307,512,536]" name="Hungary" pageId="3" pageNumber="254">Hungary</collectingCountry>
</materialsCitation>
. 
<materialsCitation id="BAA2CA39777FA17E6406B6DE1943FD79" ID-GBIF-Occurrence="1291823149" collectorName="Coll. H. J. G." country="Antarctica" location="Heard Island" pageId="3" pageNumber="254" specimenCount="1">
Accession Numbers 
<taxonomicName id="CDCABBE7777FA17E6023B5051A62FDC1" box="[268,382,548,573]" class="Branchiopoda" higherTaxonomySource="GBIF" kingdom="Animalia" order="Cladocera" pageId="3" pageNumber="254" phylum="Arthropoda" rank="order">Cladocera</taxonomicName>
II-537, II-538 and II-661, labeled “ 
<taxonomicName id="CDCABBE7777FA17E6217B5051F21FDC0" box="[824,1085,548,573]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="3" pageNumber="254" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C76777FA17E6217B50518EAFDC1" box="[824,1014,548,573]" italics="true" pageId="3" pageNumber="254">Alona cambouei</emphasis>
1203
</taxonomicName>
-1901 Patagonia – Sylvestri”. Specimens of 
<taxonomicName id="CDCABBE7777FA17E6019B566191CFD9C" box="[310,512,583,608]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="3" pageNumber="254" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C76777FA17E6019B566191CFD9C" box="[310,512,583,608]" italics="true" pageId="3" pageNumber="254">Ovalona weinecki</emphasis>
</taxonomicName>
, loc. freshwater pool, 
<location id="0F1596BF777FA17E63D2B566188CFD9C" LSID="urn:lsid:plazi:treatment:82637172777EA17061B8B5CF1855F989:0F1596BF777FA17E63D2B566188CFD9C" box="[765,912,583,608]" country="Antarctica" name="Heard Island" pageId="3" pageNumber="254">Heard Island</location>
, 
<collectingCountry id="72DD80F4777FA17E62B3B5661F08FD9C" box="[924,1044,583,608]" name="Antarctica" pageId="3" pageNumber="254">Antarctica</collectingCountry>
, 
<collectorName id="A73FA5B2777FA17E6530B5661FB8FD9C" box="[1055,1188,583,608]" pageId="3" pageNumber="254">Coll. H.J.G.</collectorName>
Dartnall, The Natural History Museum, London (1993.62–71).
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="42D093EF777FA17A61E8B5AE1A0FFE2C" lastPageId="7" lastPageNumber="258" pageId="3" pageNumber="254" type="description">
<paragraph id="0A75C064777FA17E61E8B5AE1E2EFD30" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="254">
<emphasis id="38BE1C76777FA17E61E8B5AE19D0FD54" bold="true" box="[199,716,655,680]" pageId="3" pageNumber="254">Description. Adult parthenogenetic female.</emphasis>
<emphasis id="38BE1C76777FA17E63FCB5AE188CFD54" box="[723,912,655,680]" italics="true" pageId="3" pageNumber="254">General Habitus</emphasis>
(
<figureCitation id="92F1DCE1777FA17E62B0B5AE18FFFD54" box="[927,995,655,680]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Figs 1</figureCitation>
A &amp; 2A).. Length/width ratio ca. 1.65. Habitus oval, strongly convex dorsal region and convex posterior region of the carapace (
<figureCitation id="92F1DCE1777FA17E65AFB5951FDFFD30" box="[1152,1219,692,717]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Figs 1</figureCitation>
A &amp; 2A).
</paragraph>
<paragraph id="0A75C064777FA17E61E8B5F919D0FC34" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="254">
<emphasis id="38BE1C76777FA17E61E8B5F91A29FD13" box="[199,309,728,751]" italics="true" pageId="3" pageNumber="254">Carapace</emphasis>
(
<figureCitation id="92F1DCE1777FA17E6068B5F61A90FD0C" box="[327,396,727,752]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Figs 1</figureCitation>
A &amp; 2A) lacking ornamentation. Valve setae ca. 35–50 (ca. 45 on average), in three main groups, long anterior group, medium small group and intermediate sized posterior group starting just beyond the middle. Setae with fine setules and gradually decreasing in size towards the corner. The last seta is relatively long, therefore the row of setae seems to end abruptly, just before the corner, continuing in fine setules on the margin (not groups) (see habitus drawing 
<figureCitation id="92F1DCE1777FA17E60CEB446193CFC7C" box="[481,544,871,896]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
A; 
<figureCitation id="92F1DCE1777FA17E636AB446199BFC7C" box="[581,647,871,896]" captionStart="FIGURE 2" captionStartId="6.[151,250,1550,1572]" captionTargetBox="[150,1436,193,1528]" captionTargetId="figure@6.[150,1436,193,1529]" captionTargetPageId="6" captionText="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." httpUri="https://zenodo.org/record/258157/files/figure.png" pageId="3" pageNumber="254">
Fig. 
<quantity id="CD326D81777FA17E6356B449199BFC7C" box="[633,647,872,896]" metricMagnitude="-2" metricUnit="m" metricValue="5.08" pageId="3" pageNumber="254" unit="in" value="2.0">2</quantity>
</figureCitation>
in 
<bibRefCitation id="6E5BBD95777FA17E6385B44918D4FC7C" author="Dumont" box="[682,968,871,896]" pageId="3" pageNumber="254" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
). Posteroventral corner without notch and no posterodorsal angle. Ventral margin of the valves straight, slight depression near the middle (
<figureCitation id="92F1DCE1777FA17E65CAB4AD1E36FC58" box="[1253,1322,908,933]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Figs 1</figureCitation>
A &amp; 2A). Posteroventral valve corner round. No dorsal keel.
</paragraph>
<paragraph id="0A75C064777FA17E61E8B4F51E9CFA19" blockId="3.[151,1437,151,2013]" pageId="3" pageNumber="254">
<emphasis id="38BE1C76777FA17E61E8B4F51916FC11" box="[199,522,980,1005]" italics="true" pageId="3" pageNumber="254">Cephalic structures. Ocellus</emphasis>
smaller than eye, equidistant between rostrum and latter (
<figureCitation id="92F1DCE1777FA17E6588B4F51FF0FC10" box="[1191,1260,980,1005]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Figs 1</figureCitation>
A &amp; 2A). Well developed rostrum, round and a round even posterior margin (see 
<bibRefCitation id="6E5BBD95777FA17E62B4B4D91FDFFBEC" author="Dumont" box="[923,1219,1015,1040]" pageId="3" pageNumber="254" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
). Apex of the first antenna reaching rostrum, aesthetascs projecting beyond. 
<emphasis id="38BE1C76777FA17E6204B33D18B2FBC8" box="[811,942,1052,1077]" italics="true" pageId="3" pageNumber="254">Head pores</emphasis>
(
<figureCitation id="92F1DCE1777FA17E62EFB33D1F1DFBC8" box="[960,1025,1052,1077]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
E; 
<bibRefCitation id="6E5BBD95777FA17E6509B33C1E57FBC9" author="Dumont" box="[1062,1355,1052,1077]" pageId="3" pageNumber="254" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
: 
<figureCitation id="92F1DCE1777FA17E6477B33D1E80FBC8" box="[1368,1436,1052,1077]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Fig. 3</figureCitation>
and Fig. 24), three main narrowly connected head pores (
<figureCitation id="92F1DCE1777FA17E6239B31E1848FBA4" box="[790,852,1087,1112]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
E) all of the same size, close to the broadly rounded round posterior head shield margin (
<bibRefCitation id="6E5BBD95777FA17E6303B3451885FB80" author="Dumont" box="[556,921,1124,1149]" pageId="3" pageNumber="254" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">
Dumont &amp; Martens 1996: 
<figureCitation id="92F1DCE1777FA17E6279B3451885FB80" box="[854,921,1124,1149]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Fig. 3</figureCitation>
</bibRefCitation>
). Postpore distance PP less than one interpore distance IP. Small pores between 3/4th IP (
<figureCitation id="92F1DCE1777FA17E6358B3A619A9FB5C" box="[631,693,1159,1184]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
E) to one IP distance (
<bibRefCitation id="6E5BBD95777FA17E629EB3A91E31FB5C" author="Dumont" box="[945,1325,1159,1184]" pageId="3" pageNumber="254" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996: Fig. 24</bibRefCitation>
) from the midline and situated at about midway of the main pores (
<figureCitation id="92F1DCE1777FA17E6205B38D1877FB38" box="[810,875,1196,1221]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
E). 
<emphasis id="38BE1C76777FA17E62B6B38D18EEFB39" box="[921,1010,1196,1221]" italics="true" pageId="3" pageNumber="254">Labrum</emphasis>
(
<figureCitation id="92F1DCE1777FA17E652CB38D1F58FB38" box="[1027,1092,1196,1221]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
B). Keel short in lateral view, quite convex, no lip present. Variation shown in 
<bibRefCitation id="6E5BBD95777FA17E63EBB3F018E5FB14" author="Dumont" box="[708,1017,1231,1256]" pageId="3" pageNumber="254" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens (1996)</bibRefCitation>
, margin mostly straight yet variable, sometimes wavy (
<figureCitation id="92F1DCE1777FA17E6049B3D51AB4FAF0" box="[358,424,1268,1293]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
B). 
<emphasis id="38BE1C76777FA17E60F8B3D51966FAF1" box="[471,634,1268,1293]" italics="true" pageId="3" pageNumber="254">Antennules/A1</emphasis>
(
<figureCitation id="92F1DCE1777FA17E63A3B3D519D1FAF0" box="[652,717,1268,1293]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
C). Short, about 2–2.5 as long as wide. Sensory seta at a third from the antennular apex. Setulated on the margin (four to five rows). Aesthetascs of similar length, two slightly longer, all implanted on the apex. 
<emphasis id="38BE1C76777FA17E6334B21D181DFAA8" box="[539,769,1340,1365]" italics="true" pageId="3" pageNumber="254">Second antennae/A2</emphasis>
(
<figureCitation id="92F1DCE1777FA17E623DB21D184DFAA8" box="[786,849,1340,1365]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="3" pageNumber="254">Fig. 1</figureCitation>
A, 1D). Coxal spine short. Spinal formula 001/101, setal formula 113/003. Seta on the first exopod segment fine and long, reaching beyond the last exopod segment by at least one third to over half its length. Segments ornamented with small denticles (not shown). First endopod segment spine, reaching half of the second endopod segment; terminal spines about the same lengths as the segments they are implanted on. Terminal setae of similar thickness, one terminal exopod seta markedly shorter.
</paragraph>
<paragraph id="0A75C064777FA17961E8B2CE190AFC10" blockId="3.[151,1437,151,2013]" lastBlockId="4.[151,1437,151,2013]" lastPageId="4" lastPageNumber="255" pageId="3" pageNumber="254">
<emphasis id="38BE1C76777FA17E61E8B2CE1AB6F9F4" box="[199,426,1519,1544]" italics="true" pageId="3" pageNumber="254">Thoracic structures.</emphasis>
Five pairs of thoracic limbs (P1–5). 
<emphasis id="38BE1C76777FA17E6261B2D018A2F9F4" box="[846,958,1519,1544]" italics="true" pageId="3" pageNumber="254">First limb</emphasis>
(
<figureCitation id="92F1DCE1777FA17E62E1B2CE1F08F9F4" box="[974,1044,1519,1544]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Figs 3</figureCitation>
A–B). Short round epipodite. First endite with just two setae, second endite with three setae, third endite with four similar setae (
<figureCitation id="92F1DCE1777FA17E6580B1351FECF9D0" box="[1199,1264,1556,1581]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Fig. 3</figureCitation>
A). No anterior elements on en1–2. ODL with one slender seta, with short fine setules in distal half and just longer than longest IDL seta (
<figureCitation id="92F1DCE1777FA17E6028B17D1A55F988" box="[263,329,1628,1653]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Fig. 3</figureCitation>
B); IDL with two setae implanted with fine setules unilaterally on distal halves, both similar in size and a shorter naked seta about a third to a quarter their length. Short accessory seta on sixth endite, near the base of the ODL (
<emphasis id="38BE1C76777FA17E603EB1841A36F940" box="[273,298,1701,1724]" italics="true" pageId="3" pageNumber="254">as</emphasis>
in 
<figureCitation id="92F1DCE1777FA17E607BB1851A85F940" box="[340,409,1700,1725]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Fig. 3</figureCitation>
B). About six anterior setule groups with relatively short setules in each group, strongly decreasing in length ventrally. Short setules on the ventral margin. Ejector hooks very narrow and small, subequal. Gnathobase without a seta but with a small tuft of setules (
<figureCitation id="92F1DCE1777FA17E6245B1CD18AFF8F8" box="[874,947,1772,1797]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Fig. 3</figureCitation>
A). 
<emphasis id="38BE1C76777FA17E62CBB1CD1F87F8F9" box="[996,1179,1772,1797]" italics="true" pageId="3" pageNumber="254">Second limb/P2</emphasis>
(
<figureCitation id="92F1DCE1777FA17E659FB1CD1FE5F8F8" box="[1200,1273,1772,1797]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Fig. 3</figureCitation>
C). Exopodite quadrangular, with a short subapical seta and apical setules. Eight scrapers gradually decreasing in size between the exopodite and the gnathobase. Two first scrapers relatively longest, third slightly shorter than the fourth, sixth to eigth slightly thicker. Setulation of all scrapers uniform, no anterior elements at the base of scrapers. Gnathobase with short tuft of setules, three elements and a filter comb with seven setae of which the first short and modified. 
<emphasis id="38BE1C76777FA17E61B8B0811A2AF845" box="[151,310,1952,1977]" italics="true" pageId="3" pageNumber="254">Third limb/P3</emphasis>
(
<figureCitation id="92F1DCE1777FA17E6069B0811A91F844" box="[326,397,1952,1977]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Figs 3</figureCitation>
D–H). Epipodite oval-rectangular with short projection. Exopodite (
<figureCitation id="92F1DCE1777FA17E65BBB0811FC6F844" box="[1172,1242,1952,1977]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="3" pageNumber="254">Figs 3</figureCitation>
D–E) with seven setae in 2+5 arrangement. First seta about twice as long as second, both in opposite directions; third seta about twice as long as sixth seta; fourth seta just shorter than sixth, fifth of the same length as the seventh seta and both are half as long as the sixth seta. Fourth seta clearly bent in the middle, oriented away from the epipodite. All setae widely plumose, except for setae six and seven: sixth seta with asymmetric setulation, with strong thicker sparse setules in the second half, seventh seta with short setules. External endite (
<figureCitation id="92F1DCE17778A179652EB6251F5AFEE0" box="[1025,1094,260,285]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
F) with three setae (1’–3’) of which first two quite short, setules not seen and with a small naked element between them, third (3’) shorter and with longer setules; four plumose setae with thicker base on inner side (1”–4”) of same length; one naked element and four small naked setae on internal endite (
<figureCitation id="92F1DCE17778A179638DB64E19F9FE74" box="[674,741,367,392]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
G); the gnathobase (
<figureCitation id="92F1DCE17778A17962E4B64E1F11FE74" box="[971,1037,367,392]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
H) with a cylindrical sensillum and the typically larger bent seta (plumose) and two elements. Filter comb w ith seven setae (
<figureCitation id="92F1DCE17778A179655CB6B51FA8FE50" box="[1139,1204,404,429]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
F, a–g). 
<emphasis id="38BE1C767778A1796421B6B51E88FE51" box="[1294,1428,404,429]" italics="true" pageId="4" pageNumber="255">Fourth limb</emphasis>
/ P4 (
<figureCitation id="92F1DCE17778A17961E7B6961A0CFE2C" box="[200,272,439,464]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">
Figs 
<date id="7E74E6A47778A179602BB6991A0CFE2C" box="[260,272,440,464]" pageId="4" pageNumber="255">3</date>
</figureCitation>
I–K). Pre-epipodite round, epipodite oval with short projection. Exopodite round, with six plumose setae; first two exopodite setae of similar lengths, third seta just slightly longer than second; fourth exopodite seta about half as long as the fourth (or just over half), the fifth 1.5 times as long as the fourth; sixth exopodite seta shortest, about half as long as the fifth. Fifth seta just shorter than third seta. All exopodite setae similar except for fifth and sixth, which are narrower; fifth is setulated asymmetrically. Endite (
<figureCitation id="92F1DCE17778A17962D9B5661F27FD9C" box="[1014,1083,583,608]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Figs 3</figureCitation>
J–K) with marginal row of four setae (1’–4’), first fine and longer than the flaming torch setae, of which one quite developed and two markedly shorter, each with about five setules (
<figureCitation id="92F1DCE17778A1796311B5AE199DFD54" box="[574,641,655,680]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
J). One elongate naked sensillum (
<figureCitation id="92F1DCE17778A1796526B5AE1F56FD54" box="[1033,1098,655,680]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
J–K, labeled “s”); gnathobase with one long setae which is typically bent over endite and naked projection at its base; on inner side, three plumose setae (1”–3”) gradually increasing in size towards the gnathobase and a small filter comb with five setae. 
<emphasis id="38BE1C767778A17961B8B5DD1A31FCE9" box="[151,301,764,789]" italics="true" pageId="4" pageNumber="255">Fifth limb/P5</emphasis>
(
<figureCitation id="92F1DCE17778A1796013B5DD1A9CFCE8" box="[316,384,764,789]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Figs 3</figureCitation>
L–M). Pre-epipodite round, with long setules; epipodite oval with short projection. Exopodite (
<figureCitation id="92F1DCE17778A17961B0B43E1BFDFCC4" box="[159,225,799,824]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
L) shape oval, about two times as long as wide, with slightly concave setulated margin between setae three and four; four exopodite setae, first (dorsal) two longest, oriented dorsally; third shorter by one quarter of second exopodite seta, fourth exopodite seta half as long as the second; inner portion of limb (
<figureCitation id="92F1DCE17778A179658BB4461FF6FC7C" box="[1188,1258,871,896]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
M) with ovally elongated inner lobe with long apical setules (
<figureCitation id="92F1DCE17778A17963B8B4AD19C5FC58" box="[663,729,908,933]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
L); two plumose endite setae (1’–2’), the first reaching over the inner lobe, the second about half as long as the first. Small projection near gnathobase (broad with tuft), but no filter comb or elements (
<figureCitation id="92F1DCE17778A1796084B4F51AF0FC10" box="[427,492,980,1005]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="4" pageNumber="255">Fig. 3</figureCitation>
M).
</paragraph>
<paragraph id="0A75C0647778A17961E8B4D61AD7F8F9" blockId="4.[151,1437,151,2013]" pageId="4" pageNumber="255">
<emphasis id="38BE1C767778A17961E8B4D6180BFBEC" box="[199,791,1015,1040]" italics="true" pageId="4" pageNumber="255">Abdominal/Postabdominal structures. Postabdomen</emphasis>
(
<figureCitation id="92F1DCE17778A1796206B4D6186CFBEC" box="[809,880,1015,1040]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="4" pageNumber="255">Figs 1</figureCitation>
F). Widest at preanal corner. Dorso-distal angle present, about 90°, length of postabdomen 2–2.5 times as long as wide (measured from deepest point for the width, from the preanal corner to the ventral margin and from the point of implantation of the natatorial setae to the point of implantation of the terminal claw). Even though from measurements, the postabdomen is 2–2.5 times as long as wide, it has a rather elongate shape. Length of the postabdomen and depth of the preanal portion increase in larger adult females (shorter postabdomen in smaller adult females). Ventral and dorsal margins in postanal portion, parallel (to slightly tapering distally). Anal margin about the same length as the postanal margin, and concave, with smooth transition into the postanal margin. Distal margin (dorsodistal angle) slightly or not protruding. Preanal margin straight to convex. Preanal angle well developed, broad and deep, strongly reaching beyond the postanal margin (by about half the terminal claw length). 
<emphasis id="38BE1C767778A179639BB21D18A0FAA8" box="[692,956,1340,1365]" italics="true" pageId="4" pageNumber="255">Postabominal armature</emphasis>
(
<figureCitation id="92F1DCE17778A17962E3B21D1F15FAA8" box="[972,1033,1340,1365]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="4" pageNumber="255">Fig. 1</figureCitation>
G). Seven to ten groups of marginal denticles. Proximal groups with three to four denticles in each group, distalmost four to three groups with a larger distal conical denticle and always one to two smaller denticles adjacent to them, or groups with equally sized denticles all the way to the distal corner. These marginal denticle groups increase in size distally, the last two to three (maximally four) distal denticles can be markedly larger, or just gradually increasing. The marginal anal denticles in three to four groups, all fine. The lateral fascicles are fine, with no markedly thick distal spine. Lateral fascicles six to nine postanal groups, each fascicle with about 10–20 spinules, distalmost one relatively thicker. Two distalmost spines of the distal fascicles can reach just beyond the margin, or none. In the anal region, there are two to three parallel rows of lateral fascicles. 
<emphasis id="38BE1C767778A17963B3B17D1826F989" box="[668,826,1628,1653]" italics="true" pageId="4" pageNumber="255">Terminal claw</emphasis>
(
<figureCitation id="92F1DCE17778A1796262B17D1890F988" box="[845,908,1628,1653]" captionStart="FIGURE 1" captionStartId="5.[151,250,1915,1937]" captionTargetBox="[178,1407,214,1913]" captionTargetId="figure@5.[167,1415,194,1913]" captionTargetPageId="5" captionText="FIGURE 1. Ovalona pascua sp. nov., adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. A, habitus. B, labral keel, lateral view. C, antennule / A 1. D, antenna / A 2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles." httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="4" pageNumber="255">Fig. 1</figureCitation>
F). Between one up to 1.5 times as long as the anal margin, not curved strongly but rather straight. Proximal pecten shorter than half the claw length. Basal spine relatively fine and close to the terminal claw along its length; this spine is about a third or just over a third of the terminal claw length. Basal spinules not shown here, but described, together with pectens on terminal claw, in 
<bibRefCitation id="6E5BBD957778A17961B8B1CC1ADAF8F9" author="Dumont" box="[151,454,1772,1797]" pageId="4" pageNumber="255" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens (1996)</bibRefCitation>
.
</paragraph>
<paragraph id="0A75C0647778A17A61E8B02E1AF7FF04" blockId="4.[151,1437,151,2013]" lastBlockId="7.[151,1437,151,2013]" lastPageId="7" lastPageNumber="258" pageId="4" pageNumber="255">
<emphasis id="38BE1C767778A17961E8B02E1A18F8D4" bold="true" box="[199,260,1807,1832]" pageId="4" pageNumber="255">Male</emphasis>
(
<figureCitation id="92F1DCE17778A179603DB02E1A49F8D4" box="[274,341,1807,1832]" captionStart="FIGURE 2" captionStartId="6.[151,250,1550,1572]" captionTargetBox="[150,1436,193,1528]" captionTargetId="figure@6.[150,1436,193,1529]" captionTargetPageId="6" captionText="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." httpUri="https://zenodo.org/record/258157/files/figure.png" pageId="4" pageNumber="255">Fig. 2</figureCitation>
D; 
<bibRefCitation id="6E5BBD957778A1796058B0301988F8D4" author="Dumont" box="[375,660,1807,1832]" pageId="4" pageNumber="255" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
: Figs 12–13, 19–23 &amp; 26–27). Length to width ratio about 1.75, quite elongate habitus with pronounced deep ventral embayment before the middle (
<figureCitation id="92F1DCE17778A179653AB0151F46F8B0" box="[1045,1114,1844,1869]" captionStart="FIGURE 2" captionStartId="6.[151,250,1550,1572]" captionTargetBox="[150,1436,193,1528]" captionTargetId="figure@6.[150,1436,193,1529]" captionTargetPageId="6" captionText="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." httpUri="https://zenodo.org/record/258157/files/figure.png" pageId="4" pageNumber="255">Fig. 2</figureCitation>
D). No ornamentation of the carapace (only “grainy” appearance). Eye and ocellus of approximately the same size, ocellus equidistant between the rostrum and the eye. Marginal setae ca. 40, long in anterior portion, strongly decreasing in size (more than in female) towards the posterior valve corner. Antennules protruding beyond the rostrum. Labral keel with a strong depression ventrally. The male postabdomen (
<figureCitation id="92F1DCE17778A17963B5B0E519FCF820" box="[666,736,1988,2013]" captionStart="FIGURE 2" captionStartId="6.[151,250,1550,1572]" captionTargetBox="[150,1436,193,1528]" captionTargetId="figure@6.[150,1436,193,1529]" captionTargetPageId="6" captionText="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." httpUri="https://zenodo.org/record/258157/files/figure.png" pageId="4" pageNumber="255">Figs 2</figureCitation>
E &amp; 3A) is two to 2.5 times as long as wide (width in postanal portion), with a strongly truncated broad square distal portion, a generally square shape in the postanal part. Ventral and dorsal distal margin at each side of the claw base of similar length. The gonopore ends just subterminally (
<figureCitation id="92F1DCE1777AA17B6440B1CE1BB9F8D0" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="6" pageNumber="257">Fig. 3</figureCitation>
A). Terminal claw short, as long as or just shorter than the anal margin. Basal spine reaching up to half the claw length and with strong pecten on the dorsal margin. Preanal corner deep, well developed but not as a projection, just as a wide triangle, postanal corner not developed. Marginal spinules (
<figureCitation id="92F1DCE1777AA17B62D8B07A1F20F888" box="[1015,1084,1883,1908]" captionStart="FIGURE 3" captionStartId="8.[151,250,1892,1914]" captionTargetBox="[168,1418,199,1860]" captionTargetId="figure@8.[162,1428,193,1873]" captionTargetPageId="8" captionText="FIGURE 3. Ovalona pascua sp. nov. Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Thoracic structures. A, first Limb / P 1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb / P 2. D – H, third limb / P 3 exopodite (D – E) and endite (F – H). I – K, fourth Limb / P 4 exopodite (I) and endite (J) with flaming torch setae (K). L – M. fifth limb exopodite (L) and inner portion without setules (M)." httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="6" pageNumber="257">Fig. 3</figureCitation>
A) short and equal, in groups. Lateral fascicles about five to seven groups with long spinules, distal spinule of each group in the last three to four fascicles reaching over the margin. Several rows of lateral fascicles in the anal portion. The first limb/P1 (
<bibRefCitation id="6E5BBD95777AA17B6411B0851AFFF81C" author="Dumont" pageId="6" pageNumber="257" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996: Figs 19–22</bibRefCitation>
) with a strong, well developed hook consisting of a thick base and a long elongate thin distal portion, about twice as thin as the basal portion (
<bibRefCitation id="6E5BBD95777BA17A6204B7B91FC4FF4C" author="Dumont" box="[811,1240,151,176]" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996: Figs 21–22</bibRefCitation>
). Anterior setules on the limb surface shorter than in females and IDL with two terminal setae with well developed setules (
<bibRefCitation id="6E5BBD95777BA17A6411B79D1AC3FF04" author="Dumont" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996: Figs 19–20</bibRefCitation>
).
</paragraph>
<caption id="5EB590EC7779A17861B8B05A1A27F811" httpUri="https://zenodo.org/record/258156/files/figure.png" pageId="5" pageNumber="256" targetBox="[178,1407,214,1913]" targetPageId="5">
<paragraph id="0A75C0647779A17861B8B05A1A27F811" blockId="5.[151,1435,1915,2029]" pageId="5" pageNumber="256">
<emphasis id="38BE1C767779A17861B8B05A1A09F86C" bold="true" box="[151,277,1915,1937]" pageId="5" pageNumber="256">FIGURE 1.</emphasis>
<taxonomicName id="CDCABBE77779A1786031B05A1ADAF86D" box="[286,454,1915,1937]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="256" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767779A1786031B05A1ADAF86D" box="[286,454,1915,1937]" italics="true" pageId="5" pageNumber="256">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7779A17860E0B05D193EF86D" box="[463,546,1916,1937]" pageId="5" pageNumber="256" rank="species">
<emphasis id="38BE1C767779A17860E0B05D193EF86D" bold="true" box="[463,546,1916,1937]" pageId="5" pageNumber="256">sp. nov.</emphasis>
</taxonomicNameLabel>
, adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H.J. Dumont and K. Martens, 18.VIII.1990. A, habitus. B, labral keel, lateral view. C, antennule/A1. D, antenna/A2. E, head pores. F, postabdomen, lateral view. G, postabdomen, postanal portion, detail with marginal denticles and lateral fascicles.
</paragraph>
</caption>
<caption id="5EB590EC777AA17B61B8B12F1E47F963" httpUri="https://zenodo.org/record/258157/files/figure.png" pageId="6" pageNumber="257" targetBox="[150,1436,193,1528]" targetPageId="6">
<paragraph id="0A75C064777AA17B61B8B12F1E47F963" blockId="6.[151,1437,1550,1695]" pageId="6" pageNumber="257">
<emphasis id="38BE1C76777AA17B61B8B12F1A0FF9DF" bold="true" box="[151,275,1550,1572]" pageId="6" pageNumber="257">FIGURE 2.</emphasis>
<taxonomicName id="CDCABBE7777AA17B6035B12F1ADCF9D8" box="[282,448,1550,1572]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="257" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777AA17B6035B12F1ADCF9D8" box="[282,448,1550,1572]" italics="true" pageId="6" pageNumber="257">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777AA17B60E8B12E1904F9D8" box="[455,536,1551,1572]" pageId="6" pageNumber="257" rank="species">
<emphasis id="38BE1C76777AA17B60E8B12E190EF9D8" bold="true" box="[455,530,1551,1572]" pageId="6" pageNumber="257">sp. nov</emphasis>
.
</taxonomicNameLabel>
(A–E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H.J. Dumont and K. Martens, 18.VIII.1990. 
<taxonomicName id="CDCABBE7777AA17B6312B10C19EBF9BF" box="[573,759,1581,1603]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="257" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C76777AA17B6312B10C19EBF9BF" box="[573,759,1581,1603]" italics="true" pageId="6" pageNumber="257">Ovalona weinecki</emphasis>
</taxonomicName>
(F), loc. freshwater pool, Heard Island, Antarctica, Coll. H.J.G. Dartnall, The Natural History Museum, London (1993.62–71). A, 
<taxonomicName id="CDCABBE7777AA17B627DB16A18E7F99D" box="[850,1019,1611,1633]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="257" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777AA17B627DB16A18E7F99D" box="[850,1019,1611,1633]" italics="true" pageId="6" pageNumber="257">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777AA17B652BB16D1F44F99D" box="[1028,1112,1612,1633]" pageId="6" pageNumber="257" rank="species">
<emphasis id="38BE1C76777AA17B652BB16D1F4EF99D" bold="true" box="[1028,1106,1612,1633]" pageId="6" pageNumber="257">sp. nov</emphasis>
.
</taxonomicNameLabel>
Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, 
<taxonomicName id="CDCABBE7777AA17B6180B1A81AE0F963" authority="Studer, 1878" authorityName="Studer" authorityYear="1878" box="[175,508,1673,1695]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="257" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C76777AA17B6180B1A81A79F963" box="[175,357,1673,1695]" italics="true" pageId="6" pageNumber="257">Ovalona weinecki</emphasis>
(Studer, 1878)
</taxonomicName>
, adult parthenogenetic female, habitus. Scale bars 100µm (A–D &amp; F) and 50µm (D).
</paragraph>
</caption>
<paragraph id="0A75C064777BA17A61E8B62518F7FEBC" blockId="7.[151,1437,151,2013]" pageId="7" pageNumber="258">
<emphasis id="38BE1C76777BA17A61E8B625194DFEE1" bold="true" box="[199,593,260,285]" pageId="7" pageNumber="258">Ephippial female and ephippium</emphasis>
. Ephippial female (
<figureCitation id="92F1DCE1777BA17A6200B625186FFEE0" box="[815,883,260,285]" captionStart="FIGURE 2" captionStartId="6.[151,250,1550,1572]" captionTargetBox="[150,1436,193,1528]" captionTargetId="figure@6.[150,1436,193,1529]" captionTargetPageId="6" captionText="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." httpUri="https://zenodo.org/record/258157/files/figure.png" pageId="7" pageNumber="258">Fig. 2</figureCitation>
B) with typically high dorsum, light brown color. Ephippium light to dark brown with a single egg, as for the genus (
<figureCitation id="92F1DCE1777BA17A62AAB60618D4FEBC" box="[901,968,295,320]" captionStart="FIGURE 2" captionStartId="6.[151,250,1550,1572]" captionTargetBox="[150,1436,193,1528]" captionTargetId="figure@6.[150,1436,193,1529]" captionTargetPageId="6" captionText="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." httpUri="https://zenodo.org/record/258157/files/figure.png" pageId="7" pageNumber="258">Fig. 2</figureCitation>
C).
</paragraph>
<paragraph id="0A75C064777BA17A61E8B66D1A0FFE2C" blockId="7.[151,1437,151,2013]" pageId="7" pageNumber="258">
<emphasis id="38BE1C76777BA17A61E8B66D1BE2FE99" bold="true" box="[199,254,332,357]" pageId="7" pageNumber="258">Size.</emphasis>
Parthenogenetic female size ranging between 
<quantity id="CD326D81777BA17A621CB66D18CDFE98" box="[819,977,332,357]" metricMagnitude="-4" metricUnit="m" metricValue="4.55" metricValueMax="6.0" metricValueMin="3.1" pageId="7" pageNumber="258" unit="mm" value="0.45499999999999996" valueMax="0.6" valueMin="0.31">0.31–0.6 mm</quantity>
, average 
<quantity id="CD326D81777BA17A6566B66D1FBAFE98" box="[1097,1190,332,356]" metricMagnitude="-4" metricUnit="m" metricValue="4.4" pageId="7" pageNumber="258" unit="mm" value="0.44">0.44mm</quantity>
(size distribution in 
<bibRefCitation id="6E5BBD95777BA17A61B8B6511AAAFE74" author="Dumont" box="[151,438,367,392]" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
). Male size ranging between 
<quantity id="CD326D81777BA17A63D1B6511885FE74" box="[766,921,368,392]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" metricValueMax="4.1" metricValueMin="3.9" pageId="7" pageNumber="258" unit="mm" value="0.4" valueMax="0.41" valueMin="0.39">0.39–0.41mm</quantity>
(
<bibRefCitation id="6E5BBD95777BA17A6287B6511FD4FE74" author="Dumont" box="[936,1224,367,392]" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
). Ephippial female size distribution in 
<bibRefCitation id="6E5BBD95777BA17A6053B6B419A5FE51" author="Dumont" box="[380,697,404,429]" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens (1996)</bibRefCitation>
, ranging according to the authors, up to 
<quantity id="CD326D81777BA17A658DB6B51FECFE51" box="[1186,1264,404,429]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="7" pageNumber="258" unit="mm" value="0.6">0.6mm</quantity>
in the revised specimens.
</paragraph>
</subSubSection>
<subSubSection id="42D093EF777BA17A61E8B6FD1A81FAA9" pageId="7" pageNumber="258" type="diagnosis">
<paragraph id="0A75C064777BA17A61E8B6FD1FE3FD54" blockId="7.[151,1437,151,2013]" pageId="7" pageNumber="258">
<emphasis id="38BE1C76777BA17A61E8B6FD1AC9FE09" bold="true" box="[199,469,476,501]" pageId="7" pageNumber="258">Differential diagnosis.</emphasis>
Adult parthenogenetic females of 
<taxonomicName id="CDCABBE7777BA17A62AFB6FD1F22FE08" box="[896,1086,476,501]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777BA17A62AFB6FD1F22FE08" box="[896,1086,476,501]" italics="true" pageId="7" pageNumber="258">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777BA17A6562B6FD1FB2FE08" box="[1101,1198,476,501]" pageId="7" pageNumber="258" rank="species">
<emphasis id="38BE1C76777BA17A6562B6FD1FBBFE09" bold="true" box="[1101,1191,476,501]" pageId="7" pageNumber="258">sp. nov</emphasis>
.
</taxonomicNameLabel>
are distinct by the combination of three connected headpores and no notches on the headshield, an oval-round habitus, a postabdomen with a wide preanal portion, with deep preanal corner and a right dorsodistal angle (i.e., not protruding strongly or not at all). Additional characters are the groups of marginal denticles (about three per group) on the postabdomen, increasing in length distally with two to four larger conical teeth near the distal corner and the seta on the first endopod of the second antenna reaching a third (up to half) its length over the last endopod segment.
</paragraph>
<paragraph id="0A75C064777BA17A61E8B5941A81FAA9" blockId="7.[151,1437,151,2013]" pageId="7" pageNumber="258">
For general comparison with other species, see the key and drawings in 
<bibRefCitation id="6E5BBD95777BA17A6560B5951FF7FD31" author="Sinev" box="[1103,1259,692,717]" pageId="7" pageNumber="258" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">Sinev (2015)</bibRefCitation>
. The marginal postabdomen groups of relatively short denticles increasing distally in size (or with two to three distal larger conical teeth), differ from the singular, markedly long teeth with adjacent denticles in most species, as in 
<taxonomicName id="CDCABBE7777BA17A6400B5DC1A39FCC4" authority="Sars, 1901" authorityName="Sars" authorityYear="1901" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C76777BA17A6400B5DC1E80FCE9" box="[1327,1436,764,789]" italics="true" pageId="7" pageNumber="258">O. glabra</emphasis>
(Sars, 1901)
</taxonomicName>
, or even more pronounced, in 
<taxonomicName id="CDCABBE7777BA17A63A3B4011F8DFCC4" authority="Kotov, Sinev &amp; Berrios, 2010" authorityName="Kotov, Sinev &amp; Berrios" authorityYear="2010" box="[652,1169,799,824]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="altiplana">
<emphasis id="38BE1C76777BA17A63A3B401180AFCC4" box="[652,790,799,824]" italics="true" pageId="7" pageNumber="258">O. altiplana</emphasis>
(
<bibRefCitation id="6E5BBD95777BA17A6207B4011F95FCC4" author="Kotov" box="[808,1161,799,824]" pageId="7" pageNumber="258" refString="Kotov, A. A., Sinev, A. Y. &amp; Berrios, V. L. (2010) The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism. Zootaxa, 2430, 1 - 66." type="journal article" year="2010">Kotov, Sinev &amp; Berrios, 2010</bibRefCitation>
)
</taxonomicName>
. It is different from 
<taxonomicName id="CDCABBE7777BA17A64AEB4011A95FCA0" authority="Sars, 1888" authorityName="Sars" authorityYear="1888" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="38BE1C76777BA17A64AEB4011BF5FCA1" italics="true" pageId="7" pageNumber="258">O. archeri</emphasis>
(Sars, 1888)
</taxonomicName>
, which has larger distal teeth towards the distal end of the postabdomen. The long postabdomen with the angular (but not strongly acute) dorsodistal angle is remotely similar to the widespread 
<emphasis id="38BE1C76777BA17A64AEB4491A15FC59" italics="true" pageId="7" pageNumber="258">O. pulchella-</emphasis>
like species like 
<taxonomicName id="CDCABBE7777BA17A60EBB4AC19FBFC59" authority="King, 1853" authorityName="King" authorityYear="1853" box="[452,743,908,933]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C76777BA17A60EBB4AC1952FC59" box="[452,590,908,933]" italics="true" pageId="7" pageNumber="258">O. pulchella</emphasis>
(King, 1853)
</taxonomicName>
, 
<taxonomicName id="CDCABBE7777BA17A63D9B4AC1FC4FC58" authority="de Guerne &amp; Richard, 1893" authorityName="de Guerne &amp; Richard" authorityYear="1893" box="[758,1240,908,933]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C76777BA17A63D9B4AC189AFC59" box="[758,902,908,933]" italics="true" pageId="7" pageNumber="258">O. cambouei</emphasis>
(de Guerne &amp; Richard, 1893)
</taxonomicName>
, 
<taxonomicName id="CDCABBE7777BA17A65C9B4AC1BC4FC34" authority="Sars, 1901" authorityName="Sars" authorityYear="1901" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C76777BA17A65C9B4AC1E48FC59" box="[1254,1364,908,933]" italics="true" pageId="7" pageNumber="258">O. glabra</emphasis>
(Sars, 1901)
</taxonomicName>
and 
<taxonomicName id="CDCABBE7777BA17A6034B491198AFC34" authority="Smirnov, 1988" authorityName="Smirnov" authorityYear="1988" box="[283,662,943,968]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="bromelicola">
<emphasis id="38BE1C76777BA17A6034B4911AD5FC34" box="[283,457,943,968]" italics="true" pageId="7" pageNumber="258">O. bromelicola</emphasis>
(Smirnov, 1988)
</taxonomicName>
. 
<taxonomicName id="CDCABBE7777BA17A6388B4911802FC34" box="[679,798,944,968]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777BA17A6388B4911802FC34" box="[679,798,944,968]" italics="true" pageId="7" pageNumber="258">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777BA17A6203B48E1897FC3B" box="[812,907,943,968]" pageId="7" pageNumber="258" rank="species">
<emphasis id="38BE1C76777BA17A6203B48E1899FC34" bold="true" box="[812,901,943,968]" pageId="7" pageNumber="258">sp. nov</emphasis>
.
</taxonomicNameLabel>
differs clearly from 
<taxonomicName id="CDCABBE7777BA17A65A4B4911E3CFC34" box="[1163,1312,943,968]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C76777BA17A65A4B4911E3CFC34" box="[1163,1312,943,968]" italics="true" pageId="7" pageNumber="258">O. cambouei</emphasis>
</taxonomicName>
in having connected head pores and from 
<taxonomicName id="CDCABBE7777BA17A6327B4F419AFFC11" box="[520,691,980,1005]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="bromelicola">
<emphasis id="38BE1C76777BA17A6327B4F419AFFC11" box="[520,691,980,1005]" italics="true" pageId="7" pageNumber="258">O. bromelicola</emphasis>
</taxonomicName>
by the presence of a well developed basal spine on the terminal claw. From 
<emphasis id="38BE1C76777BA17A6031B4D91AACFBEC" box="[286,432,1015,1040]" italics="true" pageId="7" pageNumber="258">
<taxonomicName id="CDCABBE7777BA17A6031B4D91AB0FBEC" box="[286,428,1015,1040]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pulchella">O. pulchella</taxonomicName>
,
</emphasis>
it differs in the shape of the postabdomen, not acutely protruding in 
<taxonomicName id="CDCABBE7777BA17A65EFB4D91E2EFBEC" box="[1216,1330,1016,1040]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777BA17A65EFB4D91E2EFBEC" box="[1216,1330,1016,1040]" italics="true" pageId="7" pageNumber="258">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777BA17A6414B4D61E88FBF3" box="[1339,1428,1015,1040]" pageId="7" pageNumber="258" rank="species">
<emphasis id="38BE1C76777BA17A6414B4D61E92FBEC" bold="true" box="[1339,1422,1015,1040]" pageId="7" pageNumber="258">sp. nov</emphasis>
.
</taxonomicNameLabel>
, and in the absence of clear notches on the posterior margin of the head shield. The new species differs from 
<taxonomicName id="CDCABBE7777BA17A64AEB33C1BFEFBA4" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C76777BA17A64AEB33C1BFEFBA4" italics="true" pageId="7" pageNumber="258">O. glabra</emphasis>
</taxonomicName>
and 
<taxonomicName id="CDCABBE7777BA17A6038B3611ABDFBA4" box="[279,417,1087,1112]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C76777BA17A6038B3611ABDFBA4" box="[279,417,1087,1112]" italics="true" pageId="7" pageNumber="258">O. pulchella</emphasis>
</taxonomicName>
also in the length of the postabdomen. The seta on the first endopod segment of the second antenna is long in 
<taxonomicName id="CDCABBE7777BA17A604CB3441AC8FB80" box="[355,468,1125,1148]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777BA17A604CB3441AC8FB80" box="[355,468,1125,1148]" italics="true" pageId="7" pageNumber="258">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777BA17A60F4B345192FFB80" box="[475,563,1124,1149]" pageId="7" pageNumber="258" rank="species">
<emphasis id="38BE1C76777BA17A60F4B3451931FB81" bold="true" box="[475,557,1124,1149]" pageId="7" pageNumber="258">sp. nov</emphasis>
.
</taxonomicNameLabel>
, reaching a third of its length or more over the last endopod segment, while in 
<taxonomicName id="CDCABBE7777BA17A61B8B3A91A1AFB5C" box="[151,262,1159,1184]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C76777BA17A61B8B3A91A1AFB5C" box="[151,262,1159,1184]" italics="true" pageId="7" pageNumber="258">O. glabra</emphasis>
</taxonomicName>
and 
<taxonomicName id="CDCABBE7777BA17A606EB3A91AD1FB5C" box="[321,461,1159,1184]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C76777BA17A606EB3A91AD1FB5C" box="[321,461,1159,1184]" italics="true" pageId="7" pageNumber="258">O. pulchella</emphasis>
</taxonomicName>
the seta is short and reaches just beyond this segment. Similarities with 
<taxonomicName id="CDCABBE7777BA17A643AB3A91A2BFB38" authority="Studer, 1878" authorityName="Studer" authorityYear="1878" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C76777BA17A643AB3A91E80FB5C" box="[1301,1436,1159,1184]" italics="true" pageId="7" pageNumber="258">O. weinecki</emphasis>
(Studer, 1878)
</taxonomicName>
are not obvious from the habitus and postabdomen. The postabdomen is completely different in the latter species, with a strongly round distal angle and with smaller marginal denticles (
<figureCitation id="92F1DCE1777BA17A654DB3EE1FBAFB14" box="[1122,1190,1231,1256]" captionStart="FIGURE 2" captionStartId="6.[151,250,1550,1572]" captionTargetBox="[150,1436,193,1528]" captionTargetId="figure@6.[150,1436,193,1529]" captionTargetPageId="6" captionText="FIGURE 2. Ovalona pascua sp. nov. (A – E), loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. Ovalona weinecki (F), loc. freshwater pool, Heard Island, Antarctica, Coll. H. J. G. Dartnall, The Natural History Museum, London (1993.62 – 71). A, Ovalona pascua sp. nov. Adult parthenogenetic female, habitus. B, ephippial female, habitus. C, ephippium with dormant embryo. D, adult male, habitus. E, adult male, postabdomen. F, Ovalona weinecki (Studer, 1878), adult parthenogenetic female, habitus. Scale bars 100 µm (A – D &amp; F) and 50 µm (D)." httpUri="https://zenodo.org/record/258157/files/figure.png" pageId="7" pageNumber="258">Fig. 2</figureCitation>
F). Finally, 
<taxonomicName id="CDCABBE7777BA17A6406B3F11E80FB14" box="[1321,1436,1232,1256]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777BA17A6406B3F11E80FB14" box="[1321,1436,1232,1256]" italics="true" pageId="7" pageNumber="258">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777BA17A61B8B3D51BECFAF0" box="[151,240,1268,1293]" pageId="7" pageNumber="258" rank="species">
<emphasis id="38BE1C76777BA17A61B8B3D51BF5FAF1" bold="true" box="[151,233,1268,1293]" pageId="7" pageNumber="258">sp. nov</emphasis>
.
</taxonomicNameLabel>
differs from 
<taxonomicName id="CDCABBE7777BA17A60AAB3D418F2FAF1" authority="Sousa, Elmoor-Loureiro &amp; Santos, 2015" authorityName="Sousa, Elmoor-Loureiro &amp; Santos" authorityYear="2015" box="[389,1006,1268,1293]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C76777BA17A60AAB3D41913FAF1" box="[389,527,1268,1293]" italics="true" pageId="7" pageNumber="258">O. kaingang</emphasis>
(
<bibRefCitation id="6E5BBD95777BA17A6330B3D518FBFAF1" author="Sousa" box="[543,999,1268,1293]" pageId="7" pageNumber="258" refString="Sousa, F. D. R., Elmoor-Loureiro, L. M. A. &amp; Santos, S. (2015) Alona kaingang (Crustacea, Cladocera, Aloninae): a new species of the pulchella group, with identification key to Neotropical species. Zoological Studies, 54, 1 - 12. http: // dx. doi. org / 10.1186 / s 40555 - 015 - 0128 - 5" type="journal article" year="2015">Sousa, Elmoor-Loureiro &amp; Santos, 2015</bibRefCitation>
)
</taxonomicName>
in postabdomen shape, which is more compact in the latter and in the marginal denticles, which are not groups in 
<taxonomicName id="CDCABBE7777BA17A62C1B2391F65FACC" box="[1006,1145,1303,1328]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C76777BA17A62C1B2391F65FACC" box="[1006,1145,1303,1328]" italics="true" pageId="7" pageNumber="258">O. kaingang</emphasis>
</taxonomicName>
but conical serrated teeth (see 
<bibRefCitation id="6E5BBD95777BA17A61E4B21D1A8DFAA9" author="Sousa" box="[203,401,1340,1365]" pageId="7" pageNumber="258" refString="Sousa, F. D. R., Elmoor-Loureiro, L. M. A. &amp; Santos, S. (2015) Alona kaingang (Crustacea, Cladocera, Aloninae): a new species of the pulchella group, with identification key to Neotropical species. Zoological Studies, 54, 1 - 12. http: // dx. doi. org / 10.1186 / s 40555 - 015 - 0128 - 5" type="journal article" year="2015">
Sousa 
<emphasis id="38BE1C76777BA17A603AB21C1A51FAA9" box="[277,333,1340,1365]" italics="true" pageId="7" pageNumber="258">et al.</emphasis>
2015
</bibRefCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="42D093EF777BA17A61E8B27E1FB5F9AC" pageId="7" pageNumber="258" type="distribution">
<paragraph id="0A75C064777BA17A61E8B27E1FB5F9AC" blockId="7.[151,1437,151,2013]" pageId="7" pageNumber="258">
<emphasis id="38BE1C76777BA17A61E8B27E1AEFFA84" bold="true" box="[199,499,1375,1400]" pageId="7" pageNumber="258">Distribution and ecology</emphasis>
. Easter 
<collectingCountry id="72DD80F4777BA17A6379B27E1982FA84" box="[598,670,1375,1400]" name="Iceland" pageId="7" pageNumber="258">Island</collectingCountry>
. Localities and map in 
<bibRefCitation id="6E5BBD95777BA17A629AB2401E51FA84" author="Dumont" box="[949,1357,1375,1400]" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens (1996: Map 1)</bibRefCitation>
, as 
<taxonomicName id="CDCABBE7777BA17A64AEB2411BE5FA61" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C76777BA17A64AEB2411BE5FA61" italics="true" pageId="7" pageNumber="258">O. weinecki</emphasis>
</taxonomicName>
. Widespread on Easter 
<collectingCountry id="72DD80F4777BA17A632DB2A51955FA61" box="[514,585,1412,1437]" name="Iceland" pageId="7" pageNumber="258">Island</collectingCountry>
, reported in 51% of the localities in their study (but retrieved here from less localities, see below). In a broad range of habitats. 
<bibRefCitation id="6E5BBD95777BA17A63C0B2891F39FA3C" author="Dumont" box="[751,1061,1447,1472]" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens (1996)</bibRefCitation>
report the species from shallow eutrophic pools, puddles, lake littoral (Rano Raraku), artificial lakelet in a meadow, stone basins (drinking water for cattle and horses), basalt crevices, cave water, wells (up to 
<quantity id="CD326D81777BA17A627AB2CE1865F9F4" box="[853,889,1519,1544]" metricMagnitude="0" metricUnit="m" metricValue="6.0" pageId="7" pageNumber="258" unit="m" value="6.0">6m</quantity>
deep), open water (Rano Kau Lake). Tolerant of brackish water, found in one coastal locality with seawater intrusion, together with amphipods. Also in small waterpockets, e.g., in water in the mouth of a stone statue (“Roca Tallada, Poike Peninsula”).
</paragraph>
</subSubSection>
<subSubSection id="42D093EF777BA17761E8B17D1E5BFB8C" lastPageId="10" lastPageNumber="261" pageId="7" pageNumber="258" type="reference_group">
<paragraph id="0A75C064777BA17A61E8B17D1875F820" blockId="7.[151,1437,151,2013]" pageId="7" pageNumber="258">
<taxonomicName id="CDCABBE7777BA17A61E8B17D1A98F988" box="[199,388,1628,1653]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777BA17A61E8B17D1A98F988" box="[199,388,1628,1653]" italics="true" pageId="7" pageNumber="258">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777BA17A60BEB17D1AECF988" box="[401,496,1628,1653]" pageId="7" pageNumber="258" rank="species">
<emphasis id="38BE1C76777BA17A60BEB17D1AF6F989" bold="true" box="[401,490,1628,1653]" pageId="7" pageNumber="258">sp. nov</emphasis>
.
</taxonomicNameLabel>
is clearly eurytopic, yet shallow eutrophic temporary freshwater pools can be considered the primary habitat for the species. Re-examination of the samples revealed highest abundance (&gt; 
<specimenCount id="1CCC0BED777BA17A645FB15E1A11F941" pageId="7" pageNumber="258" type="generic">500 specimens</specimenCount>
/sample) in shallow eutrophic surface pools throughout the island (see under material examined). The proportion of males and ephippial females in these pool habitats is high, with up to as many sexual as asexual stages present. Few (10– 
<specimenCount id="1CCC0BED777BA17A6082B1CD1954F8F9" box="[429,584,1772,1797]" pageId="7" pageNumber="258" type="generic">50 specimens</specimenCount>
) were found in samples from wells, caves and one coastal stone basin with seawater intrusion. In contrast to the report by 
<bibRefCitation id="6E5BBD95777BA17A638BB03118CFF8D4" author="Dumont" box="[676,979,1807,1832]" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens (1996)</bibRefCitation>
, not a single specimen of 
<taxonomicName id="CDCABBE7777BA17A65D8B0311E75F8D4" box="[1271,1385,1808,1832]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua">
<emphasis id="38BE1C76777BA17A65D8B0311E75F8D4" box="[1271,1385,1808,1832]" italics="true" pageId="7" pageNumber="258">O. pascua</emphasis>
</taxonomicName>
was retrieved from the samples examined from Rano Raraku and Rano Aroi Lakes. If present at all, the animal seems currently rare in both lakes. However, not all samples from 
<bibRefCitation id="6E5BBD95777BA17A6217B0791F7BF88C" author="Dumont" box="[824,1127,1879,1904]" pageId="7" pageNumber="258" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens (1996)</bibRefCitation>
could be studied. From the samples investigated here, it is clear that 
<taxonomicName id="CDCABBE7777BA17A6345B05C19C0F868" box="[618,732,1917,1940]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777BA17A6345B05C19C0F868" box="[618,732,1917,1940]" italics="true" pageId="7" pageNumber="258">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777BA17A63CBB05D1822F868" box="[740,830,1916,1941]" pageId="7" pageNumber="258" rank="species">
<emphasis id="38BE1C76777BA17A63CBB05D182BF869" bold="true" box="[740,823,1916,1941]" pageId="7" pageNumber="258">sp. nov</emphasis>
.
</taxonomicNameLabel>
is the most abundant freshwater arthropod, likely the most abundant freshwater invertebrate, on Easter 
<collectingCountry id="72DD80F4777BA17A63F4B081183FF845" box="[731,803,1952,1977]" name="Iceland" pageId="7" pageNumber="258">Island</collectingCountry>
. Ostracods are also extremely abundant, yet no single species is as dominant in as many samples as 
<taxonomicName id="CDCABBE7777BA17A63B8B0E41814F820" box="[663,776,1989,2012]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="7" pageNumber="258" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C76777BA17A63B8B0E41814F820" box="[663,776,1989,2012]" italics="true" pageId="7" pageNumber="258">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D777BA17A623FB0E51875F820" box="[784,873,1988,2013]" pageId="7" pageNumber="258" rank="species">
<emphasis id="38BE1C76777BA17A623FB0E5187EF821" bold="true" box="[784,866,1988,2013]" pageId="7" pageNumber="258">sp. nov</emphasis>
.
</taxonomicNameLabel>
</paragraph>
<caption id="5EB590EC7774A17561B8B0451A78F808" httpUri="https://zenodo.org/record/258158/files/figure.png" pageId="8" pageNumber="259" targetBox="[168,1418,199,1860]" targetPageId="8">
<paragraph id="0A75C0647774A17561B8B0451A78F808" blockId="8.[151,1437,1892,2036]" pageId="8" pageNumber="259">
<emphasis id="38BE1C767774A17561B8B0451A09F885" bold="true" box="[151,277,1892,1914]" pageId="8" pageNumber="259">FIGURE 3.</emphasis>
<taxonomicName id="CDCABBE77774A1756031B0451ADAF886" box="[286,454,1892,1914]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="8" pageNumber="259" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767774A1756031B0451ADAF886" box="[286,454,1892,1914]" italics="true" pageId="8" pageNumber="259">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7774A17560E0B045193EF885" box="[463,546,1892,1913]" pageId="8" pageNumber="259" rank="species">
<emphasis id="38BE1C767774A17560E0B045193EF885" bold="true" box="[463,546,1892,1913]" pageId="8" pageNumber="259">sp. nov.</emphasis>
</taxonomicNameLabel>
Adult parthenogenetic female, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H.J. Dumont and K. Martens, 18.VIII.1990. Thoracic structures. A, first Limb/P1, ODL and IDL omitted. B, outer (ODL) and inner distal lobe (IDL). C, second limb/P2. D–H, third limb/P3 exopodite (D–E) and endite (F–H). I–K, fourth Limb/P4 exopodite (I) and endite (J) with flaming torch setae (K). L–M. fifth limb exopodite (L) and inner portion without setules (M).
</paragraph>
</caption>
<caption id="5EB590EC7775A17461B8B01A1F3AF816" httpUri="https://zenodo.org/record/258159/files/figure.png" pageId="9" pageNumber="260" targetBox="[210,1363,205,1826]" targetPageId="9">
<paragraph id="0A75C0647775A17461B8B01A1F3AF816" blockId="9.[151,1436,1851,2026]" pageId="9" pageNumber="260">
<emphasis id="38BE1C767775A17461B8B01A1A05F8AC" bold="true" box="[151,281,1851,1873]" pageId="9" pageNumber="260">FIGURE 4.</emphasis>
<taxonomicName id="CDCABBE77775A1746009B01A1ACEF8AD" box="[294,466,1851,1873]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="260" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767775A1746009B01A1ACEF8AD" box="[294,466,1851,1873]" italics="true" pageId="9" pageNumber="260">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7775A17460F0B01A192AF8AC" box="[479,566,1851,1872]" pageId="9" pageNumber="260" rank="species">
<emphasis id="38BE1C767775A17460F0B01A192AF8AC" bold="true" box="[479,566,1851,1872]" pageId="9" pageNumber="260">sp. nov.</emphasis>
</taxonomicNameLabel>
Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H.J. Dumont and K. Martens, 18.VIII.1990. B, comparison 
<taxonomicName id="CDCABBE77775A174631DB0581981F873" box="[562,669,1913,1935]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="260" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767775A174631DB0581981F873" box="[562,669,1913,1935]" italics="true" pageId="9" pageNumber="260">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7775A1746387B05819E4F872" box="[680,760,1913,1934]" pageId="9" pageNumber="260" rank="species">
<emphasis id="38BE1C767775A1746387B05819E4F872" bold="true" box="[680,760,1913,1934]" pageId="9" pageNumber="260">sp. nov</emphasis>
</taxonomicNameLabel>
adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical 
<emphasis id="38BE1C767775A17460ECB0971955F837" box="[451,585,1973,1995]" italics="true" pageId="9" pageNumber="260">O. pulchella-</emphasis>
complex and to 
<emphasis id="38BE1C767775A17463C1B09718E9F837" box="[750,1013,1973,1995]" italics="true" pageId="9" pageNumber="260">
<taxonomicName id="CDCABBE77775A17463C1B0971875F837" ID-CoL="4B9M9" box="[750,873,1973,1995]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="260" phylum="Arthropoda" rank="species" species="weinecki">O. weinecki</taxonomicName>
. 
<taxonomicName id="CDCABBE77775A174625CB09718E9F837" ID-CoL="C4JL" box="[883,1013,1973,1995]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="260" phylum="Arthropoda" rank="species" species="cambouei">O. cambouei</taxonomicName>
</emphasis>
after Sinev (2015), 
<taxonomicName id="CDCABBE77775A17465ECB0971E3BF837" box="[1219,1319,1973,1995]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="260" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767775A17465ECB0971E3BF837" box="[1219,1319,1973,1995]" italics="true" pageId="9" pageNumber="260">O. glabra</emphasis>
</taxonomicName>
after Sinev (2001a), 
<taxonomicName id="CDCABBE77775A17461DDB0F41A73F816" box="[242,367,2004,2026]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="260" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767775A17461DDB0F41A73F816" box="[242,367,2004,2026]" italics="true" pageId="9" pageNumber="260">O. pulchella</emphasis>
</taxonomicName>
after Sinev (2001b), 
<taxonomicName id="CDCABBE77775A1746368B0F419A3F816" ID-CoL="4B9M9" box="[583,703,2004,2026]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="9" pageNumber="260" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767775A1746368B0F419A3F816" box="[583,703,2004,2026]" italics="true" pageId="9" pageNumber="260">O. weinecki</emphasis>
</taxonomicName>
after Frey (1988). Not to scale (B).
</paragraph>
</caption>
<caption id="5EB590EC7776A17761B8B7B91ABFFBC2" pageId="10" pageNumber="261">
<paragraph id="0A75C0647776A17761B8B7B91ABFFBC2" blockId="10.[151,1436,151,1086]" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B8B7B91A12FF53" bold="true" box="[151,270,152,175]" pageId="10" pageNumber="261">TABLE 1.</emphasis>
Simplified character similarity matrix of 
<taxonomicName id="CDCABBE77776A17763CCB7B61F86FF53" ID-CoL="6B3L" authority="Van Damme &amp; Dumont, 2008" authorityName="Van Damme &amp; Dumont" authorityYear="2008" box="[739,1178,151,175]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767776A17763CCB7B61823FF53" box="[739,831,151,175]" italics="true" pageId="10" pageNumber="261">Ovalona</emphasis>
Van Damme &amp; Dumont, 2008
</taxonomicName>
showing 12 characters across 17 species (adult female morphology), ordered by number of potential homologies with 
<taxonomicName id="CDCABBE77776A17765BCB79B1FE3FF2D" box="[1171,1279,186,209]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767776A17765BCB79B1FE3FF2D" box="[1171,1279,186,209]" italics="true" pageId="10" pageNumber="261">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7776A1776428B79B1E41FF2D" box="[1287,1373,186,209]" pageId="10" pageNumber="261" rank="species">
<emphasis id="38BE1C767776A1776428B79B1E41FF2D" bold="true" box="[1287,1373,186,209]" pageId="10" pageNumber="261">sp. nov.</emphasis>
</taxonomicNameLabel>
(grey shading). 1. Head pore connection: present (grey), interrupted/absent (blank), intermediate (light grey); 2. Headshield notches: absent or one (grey), present (blank); 3. Labral keel: no setules (grey), setules (blank); 4. Antennal seta on first endopod segment: long, one third up to half of its length or more over last segment (grey), short, just reaching over last segment, less than one third of its length (blank); 5. P2 exopodite seta: present (grey), absent (blank), intermediate/ reduced (light grey); 6. P3 exopodite setae arrangement with bent 4th seta: present (grey), straight (blank), intermediate (light grey); 7. P4 exopodite setae length fourth versus sixth seta: fourth seta shorter than sixth (grey), fourth and sixt of the same length (blank), fourth longer than sixth (light grey); 8. P4 flaming torch setae, distal portion: developed, present (grey), reduced or absent (blank); 9. Postabdomen length: 2–2.5 times as long as wide (grey), elongate, more than 2.5 times as long as wide (blank); 10. Postabdominal distal angle: present, sharp/angular (grey), rounded, no clear angle (blank); 11. Postabdominal distal angle II: not strongly protruding (grey), strongly protruding (blank), intermediate (light grey); 12. Postabdomen, postanal marginal denticles (not the distalmost 3–4 larger teeth): groups of three short, similar, broad teeth, distalmost just longer than proximal teeth in the group (grey); long distal teeth per group, sometimes only a single long tooth, accompanied by small (less than half the size of the distal tooth) proximal denticles (blank); short conical teeth with small denticles (light grey). Abbreviations for taxa and source of character states: 
<emphasis id="38BE1C767776A1776417B5811E71FD4B" box="[1336,1389,672,695]" italics="true" pageId="10" pageNumber="261">agua</emphasis>
, 
<taxonomicName id="CDCABBE77776A17764ADB58118CDFD25" authority="(Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002)" authorityName="(Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano" authorityYear="2002" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="aguascalientensis">
<emphasis id="38BE1C767776A17764ADB5811A48FD25" italics="true" pageId="10" pageNumber="261">O. aguascalientensis</emphasis>
(Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17762F3B5E018E3FD25" box="[988,1023,705,729]" italics="true" pageId="10" pageNumber="261">alti</emphasis>
, 
<taxonomicName id="CDCABBE77776A1776523B5E31AAAFD01" authority="(Kotov, Sinev &amp; Berrios, 2010) (Kotov et al. 2010)" authorityName="(Kotov, Sinev &amp; Berrios, 2010) (Kotov et al." authorityYear="2010" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="altiplana">
<emphasis id="38BE1C767776A1776523B5E31F90FD25" box="[1036,1164,705,729]" italics="true" pageId="10" pageNumber="261">O. altiplana</emphasis>
(Kotov, Sinev &amp; Berrios, 2010) (Kotov 
<emphasis id="38BE1C767776A177601DB5C71A70FD02" box="[306,364,741,766]" italics="true" pageId="10" pageNumber="261">et al.</emphasis>
2010)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17760ECB5C71AE2FD01" box="[451,510,742,765]" italics="true" pageId="10" pageNumber="261">anam</emphasis>
, 
<taxonomicName id="CDCABBE77776A1776322B5C71E28FD01" authority="(Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002)" authorityName="(Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano" authorityYear="2002" box="[525,1332,742,765]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="anamariae">
<emphasis id="38BE1C767776A1776322B5C719BFFD01" box="[525,675,742,765]" italics="true" pageId="10" pageNumber="261">O. anamariae</emphasis>
(Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002)
</taxonomicName>
; 
<emphasis id="38BE1C767776A177646FB5C71E6EFD01" box="[1344,1394,742,765]" italics="true" pageId="10" pageNumber="261">anas</emphasis>
, 
<taxonomicName id="CDCABBE77776A17764ADB5C718ABFCDD" authority="(Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev et al. 2012)" authorityName="(Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev et al." authorityYear="2012" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="anastasia">
<emphasis id="38BE1C767776A17764ADB5C71BE1FCDD" italics="true" pageId="10" pageNumber="261">O. anastasia</emphasis>
(Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev 
<emphasis id="38BE1C767776A1776219B42B1873FCDE" box="[822,879,777,802]" italics="true" pageId="10" pageNumber="261">et al.</emphasis>
2012)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17762EDB42818EEFCDD" box="[962,1010,777,801]" italics="true" pageId="10" pageNumber="261">arch</emphasis>
, 
<taxonomicName id="CDCABBE77776A17762D0B42B1E84FCDD" authority="(Sars, 1888) (Sinev 2002b)" authorityName="(Sars, 1888) (Sinev" authorityYear="2002" box="[1023,1432,777,801]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="38BE1C767776A17762D0B42B1F70FCDD" box="[1023,1132,777,801]" italics="true" pageId="10" pageNumber="261">O. archeri</emphasis>
(Sars, 1888) (Sinev 2002b)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17761B8B40F1BD9FCB9" box="[151,197,814,837]" italics="true" pageId="10" pageNumber="261">azor</emphasis>
, 
<taxonomicName id="CDCABBE77776A17761FBB40F1859FCB9" authority="(Frenzel &amp; Alonso, 1988) (Sinev et al. 2012)" authorityName="(Frenzel &amp; Alonso, 1988) (Sinev et al." authorityYear="2012" box="[212,837,813,838]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="azorica">
<emphasis id="38BE1C767776A17761FBB40F1A5BFCB9" box="[212,327,814,837]" italics="true" pageId="10" pageNumber="261">O. azorica</emphasis>
(Frenzel &amp; Alonso, 1988) (Sinev 
<emphasis id="38BE1C767776A17763EFB40F19E7FCBA" box="[704,763,813,838]" italics="true" pageId="10" pageNumber="261">et al.</emphasis>
2012)
</taxonomicName>
; 
<emphasis id="38BE1C767776A177627EB40C1894FCB9" box="[849,904,813,837]" italics="true" pageId="10" pageNumber="261">brom</emphasis>
, 
<taxonomicName id="CDCABBE77776A17762B7B40F1E84FCB9" authority="(Smirnov, 1988) (Sinev 2002a)" authorityName="(Smirnov, 1988) (Sinev" authorityYear="2002" box="[920,1432,813,837]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="bromelicola">
<emphasis id="38BE1C767776A17762B7B40F1F26FCB9" box="[920,1082,813,837]" italics="true" pageId="10" pageNumber="261">O. bromelicola</emphasis>
(Smirnov, 1988) (Sinev 2002a)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17761B8B4701BCDFC95" box="[151,209,849,873]" italics="true" pageId="10" pageNumber="261">camb</emphasis>
, 
<taxonomicName id="CDCABBE77776A17761F1B47319B5FC95" ID-CoL="C4JL" authority="de Guerne &amp; Richard, 1893" authorityName="de Guerne &amp; Richard" authorityYear="1893" box="[222,681,849,873]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C767776A17761F1B4731BEDFC95" box="[222,241,850,873]" italics="true" pageId="10" pageNumber="261">O</emphasis>
. 
<emphasis id="38BE1C767776A17761D0B4701A7BFC95" box="[255,359,849,873]" italics="true" pageId="10" pageNumber="261">cambouei</emphasis>
(de Guerne &amp; Richard, 1893)
</taxonomicName>
(Sinev 2001b, 2015); 
<emphasis id="38BE1C767776A17762B5B47318D0FC95" box="[922,972,850,873]" italics="true" pageId="10" pageNumber="261">cape</emphasis>
, 
<taxonomicName id="CDCABBE77776A17762F5B4731BE3FC71" authority="(Ruhe, 1914) (Van Damme et al. 2013)" authorityName="(Ruhe, 1914) (Van Damme et al." authorityYear="2013" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="capensis">
<emphasis id="38BE1C767776A17762F5B4731F44FC95" box="[986,1112,850,873]" italics="true" pageId="10" pageNumber="261">O. capensis</emphasis>
(Rühe, 1914) (Van Damme 
<emphasis id="38BE1C767776A17764A7B4731BA8FC72" italics="true" pageId="10" pageNumber="261">et al.</emphasis>
2013)
</taxonomicName>
; 
<emphasis id="38BE1C767776A1776022B4541A20FC71" box="[269,316,885,909]" italics="true" pageId="10" pageNumber="261">glab</emphasis>
, 
<taxonomicName id="CDCABBE77776A1776062B45719ECFC71" authority="(Sars, 1901) (Sinev 2001a)" authorityName="(Sars, 1901) (Sinev" authorityYear="2001" box="[333,752,885,909]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767776A1776062B4571AA5FC71" box="[333,441,885,909]" italics="true" pageId="10" pageNumber="261">O. glabra</emphasis>
(Sars, 1901) (Sinev 2001a)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17763D1B4541837FC71" box="[766,811,885,909]" italics="true" pageId="10" pageNumber="261">kain</emphasis>
, 
<taxonomicName id="CDCABBE77776A1776213B4571A76FC4D" authority="(Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa et al. 2015)" authorityName="(Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa et al." authorityYear="2015" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C767776A1776213B45718D8FC71" box="[828,964,885,909]" italics="true" pageId="10" pageNumber="261">O. kaingang</emphasis>
(Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa 
<emphasis id="38BE1C767776A17761C8B4BB1A3DFC4E" box="[231,289,921,946]" italics="true" pageId="10" pageNumber="261">et al.</emphasis>
2015)
</taxonomicName>
; 
<emphasis id="38BE1C767776A1776059B4BB1ABDFC4D" box="[374,417,922,945]" italics="true" pageId="10" pageNumber="261">nigr</emphasis>
, 
<taxonomicName id="CDCABBE77776A177609FB4BB18BFFC4D" authority="(Smirnov, 1996) (Kotov et al. 2010)" authorityName="(Smirnov, 1996) (Kotov et al." authorityYear="2010" box="[432,931,921,946]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="nigra">
<emphasis id="38BE1C767776A177609FB4BB1910FC4D" box="[432,524,922,945]" italics="true" pageId="10" pageNumber="261">O. nigra</emphasis>
(Smirnov, 1996) (Kotov 
<emphasis id="38BE1C767776A1776230B4BB1845FC4E" box="[799,857,921,946]" italics="true" pageId="10" pageNumber="261">et al.</emphasis>
2010)
</taxonomicName>
; 
<emphasis id="38BE1C767776A1776281B4BB18FDFC4D" box="[942,993,922,945]" italics="true" pageId="10" pageNumber="261">nura</emphasis>
, 
<taxonomicName id="CDCABBE77776A17762C0B4BB1BC4FC28" authority="(Margaritora, 1971) (Sinev 2015)" authorityName="(Margaritora, 1971) (Sinev" authorityYear="2015" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="nuragica">
<emphasis id="38BE1C767776A17762C0B4BB1F6DFC4D" box="[1007,1137,922,945]" italics="true" pageId="10" pageNumber="261">O. nuragica</emphasis>
(Margaritora, 1971) (Sinev 2015)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17761C9B49C1A0BFC28" box="[230,279,957,980]" italics="true" pageId="10" pageNumber="261">pasc</emphasis>
, 
<taxonomicName id="CDCABBE77776A1776007B49D1AC4FC28" box="[296,472,956,980]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767776A1776007B49D1AC4FC28" box="[296,472,956,980]" italics="true" pageId="10" pageNumber="261">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7776A17760CCB49C1927FC28" box="[483,571,957,980]" pageId="10" pageNumber="261" rank="species">
<emphasis id="38BE1C767776A17760CCB49C1929FC28" bold="true" box="[483,565,957,980]" pageId="10" pageNumber="261">sp. nov</emphasis>
.
</taxonomicNameLabel>
(this study); 
<emphasis id="38BE1C767776A17763FDB49D181CFC28" box="[722,768,956,980]" italics="true" pageId="10" pageNumber="261">pulc</emphasis>
, 
<taxonomicName id="CDCABBE77776A177623EB49C1FCBFC28" authority="(King, 1853) (Sinev 2001b)" authorityName="(King, 1853) (Sinev" authorityYear="2001" box="[785,1239,956,980]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767776A177623EB49C1884FC28" box="[785,920,956,980]" italics="true" pageId="10" pageNumber="261">O. pulchella</emphasis>
(King, 1853) (Sinev 2001b)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17765CAB49C1E0CFC28" box="[1253,1296,957,980]" italics="true" pageId="10" pageNumber="261">setu</emphasis>
, 
<taxonomicName id="CDCABBE77776A177640EB49C1ACFFC0B" authority="(Megard, 1967) (Sinev 2009)" authorityName="(Megard, 1967) (Sinev" authorityYear="2009" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="setulosa">
<emphasis id="38BE1C767776A177640EB49C1E87FC28" box="[1313,1435,956,980]" italics="true" pageId="10" pageNumber="261">O. setulosa</emphasis>
(Megard, 1967) (Sinev 2009)
</taxonomicName>
; 
<emphasis id="38BE1C767776A17760F1B4C1190CFC0B" box="[478,528,992,1015]" italics="true" pageId="10" pageNumber="261">wein</emphasis>
, 
<taxonomicName id="CDCABBE77776A1776331B4C11820FC0B" ID-CoL="4B9M9" authority="Studer, 1878" authorityName="Studer" authorityYear="1878" box="[542,828,991,1015]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767776A1776331B4C11980FC0B" box="[542,668,991,1015]" italics="true" pageId="10" pageNumber="261">O. weinecki</emphasis>
(Studer, 1878)
</taxonomicName>
(Frey 1988, Van Damme &amp; Dumont 2008a); 
<taxonomicName id="CDCABBE77776A177640BB4C11A56FBE6" authority="Stenroos, 1897" authorityName="Stenroos" authorityYear="1897" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="10" pageNumber="261" phylum="Arthropoda" rank="species" species="karelica">
<emphasis id="38BE1C767776A177640BB4C11E80FC0B" box="[1316,1436,991,1015]" italics="true" pageId="10" pageNumber="261">O. karelica</emphasis>
(Stenroos, 1897)
</taxonomicName>
and males not included (data deficient). Distribution, abbreviations after Forró 
<emphasis id="38BE1C767776A1776584B3251FF9FBE7" box="[1195,1253,1026,1051]" italics="true" pageId="10" pageNumber="261">et al.</emphasis>
(2008). Asterisk indicates local endemics.
</paragraph>
</caption>
<paragraph id="0A75C0647776A1776001B37B1E5BFB8C" blockId="10.[159,1351,1114,1839]" box="[302,1351,1114,1136]" pageId="10" pageNumber="261">1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 Distribution</paragraph>
</subSubSection>
<subSubSection id="42D093EF7776A17061B0B3A41855F989" lastPageId="13" lastPageNumber="264" pageId="10" pageNumber="261" type="description">
<paragraph id="0A75C0647776A17761B0B3A41FECFAC3" blockId="10.[159,1351,1114,1839]" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B0B3A41BD1FB66" box="[159,205,1157,1178]" italics="true" pageId="10" pageNumber="261">pasc</emphasis>
PAC* 
<emphasis id="38BE1C767776A17761B0B38C1BDDFB3F" box="[159,193,1197,1219]" italics="true" pageId="10" pageNumber="261">alti</emphasis>
NT* 
<emphasis id="38BE1C767776A17761B0B3F71BD7FB10" box="[159,203,1238,1260]" italics="true" pageId="10" pageNumber="261">kain</emphasis>
NT* 
<emphasis id="38BE1C767776A17761B0B2201BD3FAEA" box="[159,207,1281,1302]" italics="true" pageId="10" pageNumber="261">wein</emphasis>
ANT* 
<emphasis id="38BE1C767776A17761B0B20B1BD4FAC3" box="[159,200,1322,1343]" italics="true" pageId="10" pageNumber="261">setu</emphasis>
NA
</paragraph>
<paragraph id="0A75C0647776A17761B0B2721FF1FA6E" blockId="10.[159,1351,1114,1839]" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B0B2721BD5FA94" box="[159,201,1363,1384]" italics="true" pageId="10" pageNumber="261">nigr</emphasis>
NT* 
<emphasis id="38BE1C767776A17761B0B25D1BD0FA6E" box="[159,204,1404,1426]" italics="true" pageId="10" pageNumber="261">glab</emphasis>
NT
</paragraph>
<paragraph id="0A75C0647776A17761B0B2841FECFA47" blockId="10.[159,1351,1114,1839]" box="[159,1264,1445,1467]" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B0B2841BD1FA47" box="[159,205,1445,1467]" italics="true" pageId="10" pageNumber="261">arch</emphasis>
AU
</paragraph>
<paragraph id="0A75C0647776A17761B0B2EF1FF1FA18" blockId="10.[159,1351,1114,1839]" box="[159,1261,1486,1508]" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B0B2EF1BCFFA18" box="[159,211,1486,1508]" italics="true" pageId="10" pageNumber="261">brom</emphasis>
NT
</paragraph>
<paragraph id="0A75C0647776A17761B0B2D91FE8F9CB" blockId="10.[159,1351,1114,1839]" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B0B2D91BD7F9F2" box="[159,203,1528,1550]" italics="true" pageId="10" pageNumber="261">pulc</emphasis>
AU OL 
<emphasis id="38BE1C767776A17761B0B1031BD3F9CB" box="[159,207,1570,1591]" italics="true" pageId="10" pageNumber="261">nura</emphasis>
PA*
</paragraph>
<paragraph id="0A75C0647776A17761B0B16A1FE8F976" blockId="10.[159,1351,1114,1839]" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B0B16A1BCBF99C" box="[159,215,1611,1632]" italics="true" pageId="10" pageNumber="261">anam</emphasis>
NT* 
<emphasis id="38BE1C767776A17761B0B1541BD0F976" box="[159,204,1653,1674]" italics="true" pageId="10" pageNumber="261">azor</emphasis>
PA*
</paragraph>
<paragraph id="0A75C0647776A17761B0B1BF1FF4F94F" blockId="10.[159,1351,1114,1839]" box="[159,1256,1694,1715]" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B0B1BF1BD3F94F" box="[159,207,1694,1715]" italics="true" pageId="10" pageNumber="261">anas</emphasis>
PA
</paragraph>
<paragraph id="0A75C0647776A17661B0B1E718A0FD54" blockId="10.[159,1351,1114,1839]" lastBlockId="11.[151,1437,151,2015]" lastPageId="11" lastPageNumber="262" pageId="10" pageNumber="261">
<emphasis id="38BE1C767776A17761B0B1E71BCAF920" box="[159,214,1734,1756]" italics="true" pageId="10" pageNumber="261">camb</emphasis>
AT O L 
<emphasis id="38BE1C767776A17761B0B1D01BD3F8FA" box="[159,207,1777,1798]" italics="true" pageId="10" pageNumber="261">cape</emphasis>
AT * 
<emphasis id="38BE1C767776A17761B0B03B1BCEF8D3" box="[159,210,1818,1839]" italics="true" pageId="10" pageNumber="261">agua</emphasis>
NT* 
<emphasis id="38BE1C767777A17661E8B7B61800FF4C" bold="true" box="[199,796,151,176]" pageId="11" pageNumber="262">
Morphological affinities of 
<taxonomicName id="CDCABBE77777A1766325B7B619DFFF53" box="[522,707,151,176]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A1766325B7B619DFFF53" bold="true" box="[522,707,151,176]" italics="true" pageId="11" pageNumber="262">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A17663E5B7B61800FF4C" box="[714,796,151,176]" pageId="11" pageNumber="262" rank="species">sp. nov</taxonomicNameLabel>
</emphasis>
. A simplified character similarity matrix of 12 characters across 17 species is presented in 
<tableCitation id="4748F5DF7777A176630AB79D1962FF28" box="[549,638,188,213]" captionStart="TABLE 1" captionStartId="10.[151,239,152,175]" captionText="TABLE 1. Simplified character similarity matrix of Ovalona Van Damme &amp; Dumont, 2008 showing 12 characters across 17 species (adult female morphology), ordered by number of potential homologies with O. pascua sp. nov. (grey shading). 1. Head pore connection: present (grey), interrupted / absent (blank), intermediate (light grey); 2. Headshield notches: absent or one (grey), present (blank); 3. Labral keel: no setules (grey), setules (blank); 4. Antennal seta on first endopod segment: long, one third up to half of its length or more over last segment (grey), short, just reaching over last segment, less than one third of its length (blank); 5. P 2 exopodite seta: present (grey), absent (blank), intermediate / reduced (light grey); 6. P 3 exopodite setae arrangement with bent 4 th seta: present (grey), straight (blank), intermediate (light grey); 7. P 4 exopodite setae length fourth versus sixth seta: fourth seta shorter than sixth (grey), fourth and sixt of the same length (blank), fourth longer than sixth (light grey); 8. P 4 flaming torch setae, distal portion: developed, present (grey), reduced or absent (blank); 9. Postabdomen length: 2 – 2.5 times as long as wide (grey), elongate, more than 2. 5 times as long as wide (blank); 10. Postabdominal distal angle: present, sharp / angular (grey), rounded, no clear angle (blank); 11. Postabdominal distal angle II: not strongly protruding (grey), strongly protruding (blank), intermediate (light grey); 12. Postabdomen, postanal marginal denticles (not the distalmost 3 – 4 larger teeth): groups of three short, similar, broad teeth, distalmost just longer than proximal teeth in the group (grey); long distal teeth per group, sometimes only a single long tooth, accompanied by small (less than half the size of the distal tooth) proximal denticles (blank); short conical teeth with small denticles (light grey). Abbreviations for taxa and source of character states: agua, O. aguascalientensis (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); alti, O. altiplana (Kotov, Sinev &amp; Berrios, 2010) (Kotov et al. 2010); anam, O. anamariae (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); anas, O. anastasia (Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev et al. 2012); arch, O. archeri (Sars, 1888) (Sinev 2002 b); azor, O. azorica (Frenzel &amp; Alonso, 1988) (Sinev et al. 2012); brom, O. bromelicola (Smirnov, 1988) (Sinev 2002 a); camb, O. cambouei (de Guerne &amp; Richard, 1893) (Sinev 2001 b, 2015); cape, O. capensis (Rühe, 1914) (Van Damme et al. 2013); glab, O. glabra (Sars, 1901) (Sinev 2001 a); kain, O. kaingang (Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa et al. 2015); nigr, O. nigra (Smirnov, 1996) (Kotov et al. 2010); nura, O. nuragica (Margaritora, 1971) (Sinev 2015); pasc, Ovalona pascua sp. nov. (this study); pulc, O. pulchella (King, 1853) (Sinev 2001 b); setu, O. setulosa (Megard, 1967) (Sinev 2009); wein, O. weinecki (Studer, 1878) (Frey 1988, Van Damme &amp; Dumont 2008 a); O. karelica (Stenroos, 1897) and males not included (data deficient). Distribution, abbreviations after Forró et al. (2008). Asterisk indicates local endemics." pageId="11" pageNumber="262">Table 1</tableCitation>
. All accepted 
<taxonomicName id="CDCABBE77777A1766202B79D1892FF29" box="[813,910,188,213]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767777A1766202B79D1892FF29" box="[813,910,188,213]" italics="true" pageId="11" pageNumber="262">Ovalona</emphasis>
</taxonomicName>
species are included, except for 
<taxonomicName id="CDCABBE77777A1766435B79C1A4FFF04" authority="Stenroos, 1897" authorityName="Stenroos" authorityYear="1897" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="karelica">
<emphasis id="38BE1C767777A1766435B79C1E80FF29" box="[1306,1436,188,213]" italics="true" pageId="11" pageNumber="262">O. karelica</emphasis>
(Stenroos, 1897)
</taxonomicName>
, which remains data deficient. As this species is very different from 
<taxonomicName id="CDCABBE77777A1766575B7C11FD7FF04" box="[1114,1227,224,248]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua">
<emphasis id="38BE1C767777A1766575B7C11FD7FF04" box="[1114,1227,224,248]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
, its absence in the similarity matrix does not affect the discussion. Phylogenetic analysis of these and additional characters resulted in 50% majority rule consensus trees (maximum parsimony) with strong polytomies, except for predicted sibling species, but revealed no deeper groupings in which 
<taxonomicName id="CDCABBE77777A176622AB66D18DEFE98" box="[773,962,332,357]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A176622AB66D18DEFE98" box="[773,962,332,357]" italics="true" pageId="11" pageNumber="262">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A17662E1B66D1F31FE98" box="[974,1069,332,357]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A17662E1B66D1F3AFE99" bold="true" box="[974,1062,332,357]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
falls (not shown). Instead, the similarity matrix of parsimony informative characters is shown here, which can help as a simple tool to assess potential affinities of 
<taxonomicName id="CDCABBE77777A17660A2B6B4191CFE50" box="[397,512,405,428]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17660A2B6B4191CFE50" box="[397,512,405,428]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A1766326B6B5197FFE50" box="[521,611,404,429]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A1766326B6B51941FE51" bold="true" box="[521,605,404,429]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
within the genus. The matrix does not imply evolutionary relationships, yet shows morphological similarities which could be interpreted as homologies. The shape and armature of the postabdomen, the headshield, head pores and limb structures are most indicative of speciation in the genus and are included in the matrix. Autapomorphies not shown, and male characters could not be retrieved for all species and were not shown here. The main character selected by 
<bibRefCitation id="6E5BBD957777A17663DBB505189AFDC1" author="Sinev" box="[756,902,548,573]" pageId="11" pageNumber="262" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">Sinev (2015)</bibRefCitation>
to distinguish three species groups in 
<taxonomicName id="CDCABBE77777A176641BB5051E88FDC1" box="[1332,1428,548,573]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767777A176641BB5051E88FDC1" box="[1332,1428,548,573]" italics="true" pageId="11" pageNumber="262">Ovalona</emphasis>
</taxonomicName>
, is taken into account as well (postabdomen length) (
<tableCitation id="4748F5DF7777A17663CEB5661829FD9C" box="[737,821,583,608]" captionStart="TABLE 1" captionStartId="10.[151,239,152,175]" captionText="TABLE 1. Simplified character similarity matrix of Ovalona Van Damme &amp; Dumont, 2008 showing 12 characters across 17 species (adult female morphology), ordered by number of potential homologies with O. pascua sp. nov. (grey shading). 1. Head pore connection: present (grey), interrupted / absent (blank), intermediate (light grey); 2. Headshield notches: absent or one (grey), present (blank); 3. Labral keel: no setules (grey), setules (blank); 4. Antennal seta on first endopod segment: long, one third up to half of its length or more over last segment (grey), short, just reaching over last segment, less than one third of its length (blank); 5. P 2 exopodite seta: present (grey), absent (blank), intermediate / reduced (light grey); 6. P 3 exopodite setae arrangement with bent 4 th seta: present (grey), straight (blank), intermediate (light grey); 7. P 4 exopodite setae length fourth versus sixth seta: fourth seta shorter than sixth (grey), fourth and sixt of the same length (blank), fourth longer than sixth (light grey); 8. P 4 flaming torch setae, distal portion: developed, present (grey), reduced or absent (blank); 9. Postabdomen length: 2 – 2.5 times as long as wide (grey), elongate, more than 2. 5 times as long as wide (blank); 10. Postabdominal distal angle: present, sharp / angular (grey), rounded, no clear angle (blank); 11. Postabdominal distal angle II: not strongly protruding (grey), strongly protruding (blank), intermediate (light grey); 12. Postabdomen, postanal marginal denticles (not the distalmost 3 – 4 larger teeth): groups of three short, similar, broad teeth, distalmost just longer than proximal teeth in the group (grey); long distal teeth per group, sometimes only a single long tooth, accompanied by small (less than half the size of the distal tooth) proximal denticles (blank); short conical teeth with small denticles (light grey). Abbreviations for taxa and source of character states: agua, O. aguascalientensis (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); alti, O. altiplana (Kotov, Sinev &amp; Berrios, 2010) (Kotov et al. 2010); anam, O. anamariae (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); anas, O. anastasia (Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev et al. 2012); arch, O. archeri (Sars, 1888) (Sinev 2002 b); azor, O. azorica (Frenzel &amp; Alonso, 1988) (Sinev et al. 2012); brom, O. bromelicola (Smirnov, 1988) (Sinev 2002 a); camb, O. cambouei (de Guerne &amp; Richard, 1893) (Sinev 2001 b, 2015); cape, O. capensis (Rühe, 1914) (Van Damme et al. 2013); glab, O. glabra (Sars, 1901) (Sinev 2001 a); kain, O. kaingang (Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa et al. 2015); nigr, O. nigra (Smirnov, 1996) (Kotov et al. 2010); nura, O. nuragica (Margaritora, 1971) (Sinev 2015); pasc, Ovalona pascua sp. nov. (this study); pulc, O. pulchella (King, 1853) (Sinev 2001 b); setu, O. setulosa (Megard, 1967) (Sinev 2009); wein, O. weinecki (Studer, 1878) (Frey 1988, Van Damme &amp; Dumont 2008 a); O. karelica (Stenroos, 1897) and males not included (data deficient). Distribution, abbreviations after Forró et al. (2008). Asterisk indicates local endemics." pageId="11" pageNumber="262">Table 1</tableCitation>
). The similarity matrix may be a useful tool for future description of new chydorid species, as it visualizes potential affinities (or convergences) in a single matrix in a simplified way, from the perspective of the species under consideration.
</paragraph>
<paragraph id="0A75C0647777A17661E8B5951AF3FB11" blockId="11.[151,1437,151,2015]" pageId="11" pageNumber="262">
<bibRefCitation id="6E5BBD957777A17661E8B5951A4AFD37" author="Sinev" box="[199,342,692,715]" pageId="11" pageNumber="262" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">Sinev (2015)</bibRefCitation>
distinguishes three major groups: a small 
<taxonomicName id="CDCABBE77777A1766218B59518A0FD30" box="[823,956,692,716]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="nuragica">
<emphasis id="38BE1C767777A1766218B59518A0FD30" box="[823,956,692,716]" italics="true" pageId="11" pageNumber="262">O. nuragica</emphasis>
</taxonomicName>
-group and two main larger groups, the 
<emphasis id="38BE1C767777A17664ADB5951A14FD10" italics="true" pageId="11" pageNumber="262">O. cambouei-</emphasis>
and 
<emphasis id="38BE1C767777A1766013B5F41AA1FD10" box="[316,445,724,748]" italics="true" pageId="11" pageNumber="262">O. setulosa-</emphasis>
group. It is unclear whether these groups should be seen as natural. However this systematic diagnosis allows a quick assignment based on clear character states. Interesting about this grouping, is that New World species with limited distribution ranges all have a short postabdomen lacking a protruding distal margin (except for 
<taxonomicName id="CDCABBE77777A17664ADB4341BF2FCB0" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="setulosa">
<emphasis id="38BE1C767777A17664ADB4341BF2FCB0" italics="true" pageId="11" pageNumber="262">O. setulosa</emphasis>
</taxonomicName>
which has a wide distribution) and that the three species with the largest distribution fall under the longpostabdomen grouping with protruding distal margin (O. 
<taxonomicName id="CDCABBE77777A176622BB475187BFC90" box="[772,871,852,876]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767777A176622BB475187BFC90" box="[772,871,852,876]" italics="true" pageId="11" pageNumber="262">pulchella</emphasis>
</taxonomicName>
-group). However, it may still group species that are unrelated and which have a convergence in the postabdomen length. According to postabdomen length, 
<taxonomicName id="CDCABBE77777A17665C1B4551E87FC70" box="[1262,1435,884,908]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17665C1B4551E87FC70" box="[1262,1435,884,908]" italics="true" pageId="11" pageNumber="262">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A17661B8B4B41BF3FC50" box="[151,239,917,940]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A17661B8B4B41BF4FC50" bold="true" box="[151,232,917,940]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
would fall into the 
<emphasis id="38BE1C767777A17660E2B4B4194CFC50" box="[461,592,916,940]" italics="true" pageId="11" pageNumber="262">O. setulosa-</emphasis>
group as suggested by 
<bibRefCitation id="6E5BBD957777A1766261B4B418C2FC50" author="Sinev" box="[846,990,917,940]" pageId="11" pageNumber="262" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">Sinev (2015)</bibRefCitation>
, which includes 
<taxonomicName id="CDCABBE77777A17665B7B4B41A72FC30" authority="Sinev &amp; Silva-Briano, 2012" authorityName="Sinev &amp; Silva-Briano" authorityYear="2012" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="anamariae">
<emphasis id="38BE1C767777A17665B7B4B41E33FC50" box="[1176,1327,917,940]" italics="true" pageId="11" pageNumber="262">O. anamariae</emphasis>
(Sinev &amp; Silva-Briano, 2012)
</taxonomicName>
, 
<taxonomicName id="CDCABBE77777A1766057B49418C1FC30" authority="Sinev, Alonso, Miracle &amp; Sahuqillo, 2012" authorityName="Sinev, Alonso, Miracle &amp; Sahuqillo" authorityYear="2012" box="[376,989,949,972]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="anastasia">
<emphasis id="38BE1C767777A1766057B4941AE3FC30" box="[376,511,949,972]" italics="true" pageId="11" pageNumber="262">O. anastasia</emphasis>
(Sinev, Alonso, 
<bibRefCitation id="6E5BBD957777A176639CB49418C9FC30" author="Miracle" box="[691,981,949,972]" pageId="11" pageNumber="262" refString="Sinev, A. Y., Alonso, M., Miracle, M. R. &amp; Sahuquillo, M. (2012) The West Mediterranean Alona azorica Frenzel &amp; Alonso, 1988 (Cladocera: Anomopoda: Chydoridae) is composed of two species. Zootaxa, 3276, 51 - 68." type="journal article" year="2012">Miracle &amp; Sahuqillo, 2012</bibRefCitation>
)
</taxonomicName>
, 
<taxonomicName id="CDCABBE77777A17662C7B4941E6BFC30" authority="Frenzel &amp; Alonso, 1988" authorityName="Frenzel &amp; Alonso" authorityYear="1988" box="[1000,1399,949,972]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="azorica">
<emphasis id="38BE1C767777A17662C7B4941F45FC30" box="[1000,1113,949,972]" italics="true" pageId="11" pageNumber="262">O. azorica</emphasis>
(Frenzel &amp; Alonso, 1988)
</taxonomicName>
, 
<taxonomicName id="CDCABBE77777A17664ADB49419DFFC10" authority="Sousa, Elmoor-Loureiro &amp; Santos, 2015" authorityName="Sousa, Elmoor-Loureiro &amp; Santos" authorityYear="2015" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C767777A17664ADB4941BE6FC10" italics="true" pageId="11" pageNumber="262">O. kaingang</emphasis>
(
<bibRefCitation id="6E5BBD957777A1766027B4F419A7FC10" author="Sousa" box="[264,699,981,1004]" pageId="11" pageNumber="262" refString="Sousa, F. D. R., Elmoor-Loureiro, L. M. A. &amp; Santos, S. (2015) Alona kaingang (Crustacea, Cladocera, Aloninae): a new species of the pulchella group, with identification key to Neotropical species. Zoological Studies, 54, 1 - 12. http: // dx. doi. org / 10.1186 / s 40555 - 015 - 0128 - 5" type="journal article" year="2015">Sousa, Elmoor-Loureiro &amp; Santos, 2015</bibRefCitation>
)
</taxonomicName>
, 
<taxonomicName id="CDCABBE77777A17663E1B4F418E8FC10" authority="Megard, 1967" authorityName="Megard" authorityYear="1967" box="[718,1012,980,1004]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="setulosa">
<emphasis id="38BE1C767777A17663E1B4F41859FC10" box="[718,837,980,1004]" italics="true" pageId="11" pageNumber="262">O. setulosa</emphasis>
(Megard, 1967)
</taxonomicName>
and 
<taxonomicName id="CDCABBE77777A1766508B4F41E5BFC10" authority="Studer, 1878" authorityName="Studer" authorityYear="1878" box="[1063,1351,980,1004]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767777A1766508B4F41FB9FC10" box="[1063,1189,980,1004]" italics="true" pageId="11" pageNumber="262">O. weinecki</emphasis>
(Studer, 1878)
</taxonomicName>
. Likely, this would include the Canadian/Northern 
<collectingCountry id="72DD80F47777A17663A9B4D419B4FBF0" box="[646,680,1013,1036]" name="United States of America" pageId="11" pageNumber="262">US</collectingCountry>
<taxonomicName id="CDCABBE77777A1766398B4D51FAEFBF0" authority="Chengalath &amp; Hann, 1981" authorityName="Chengalath &amp; Hann" authorityYear="1981" box="[695,1202,1012,1036]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="lapidicola">
<emphasis id="38BE1C767777A1766398B4D5186EFBF0" box="[695,882,1012,1036]" italics="true" pageId="11" pageNumber="262">Alona lapidicola</emphasis>
Chengalath &amp; Hann, 1981
</taxonomicName>
and 
<taxonomicName id="CDCABBE77777A17665D8B4D51AAEFBD1" authority="Chengalath &amp; Hann, 1981" authorityName="Chengalath &amp; Hann" authorityYear="1981" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="borealis">
<emphasis id="38BE1C767777A17665D8B4D51E87FBF0" box="[1271,1435,1012,1036]" italics="true" pageId="11" pageNumber="262">Alona borealis</emphasis>
Chengalath &amp; Hann, 1981
</taxonomicName>
as well (
<bibRefCitation id="6E5BBD957777A176633AB33719C0FBD1" author="Kotov" box="[533,732,1045,1070]" pageId="11" pageNumber="262" refString="De Los Rios-Escalante, P. &amp; Kotov, A. A. (2015) A checklist of Branchiopoda (Anostraca and Cladocera) of Chilean continental waters. Zootaxa, 4027 (3), 366 - 388. http: // dx. doi. org / 10.11646 / zootaxa. 4027.3.3" type="journal article" year="2015">
Kotov 
<emphasis id="38BE1C767777A176634DB3371987FBD2" box="[610,667,1045,1070]" italics="true" pageId="11" pageNumber="262">et al.</emphasis>
2015
</bibRefCitation>
), which remain unassigned to 
<taxonomicName id="CDCABBE77777A1766509B3341F9EFBD1" box="[1062,1154,1045,1069]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767777A1766509B3341F9EFBD1" box="[1062,1154,1045,1069]" italics="true" pageId="11" pageNumber="262">Ovalona</emphasis>
</taxonomicName>
. It is worth comparing 
<taxonomicName id="CDCABBE77777A17664ADB3371BFEFBB1" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17664ADB3371BFEFBB1" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A17661C5B3171A5DFBB1" box="[234,321,1078,1101]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A17661C5B3171A25FBB1" bold="true" box="[234,313,1078,1101]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
to the 
<emphasis id="38BE1C767777A17660A2B3171903FBB1" box="[397,543,1077,1101]" italics="true" pageId="11" pageNumber="262">O. cambouei-</emphasis>
group (in fact, 
<emphasis id="38BE1C767777A17663EEB3171853FBB1" box="[705,847,1077,1101]" italics="true" pageId="11" pageNumber="262">O. pulchella-</emphasis>
group), as it is uncertain if postabdomen length can be regarded as a phylogenetically meaningful character. Also, the postabdomen in 
<taxonomicName id="CDCABBE77777A17662CDB3771F51FB91" box="[994,1101,1110,1133]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17662CDB3771F51FB91" box="[994,1101,1110,1133]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A176657BB3771FB4FB91" box="[1108,1192,1110,1133]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A176657BB3771FBEFB91" bold="true" box="[1108,1186,1110,1133]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
is actually not so short as the measurements (2–2.5 times as long as wide) suggest and when the preanal corner is not as pronounced. Sometimes the shape is a bit more elongate, the preanal corner is not as developed (
<bibRefCitation id="6E5BBD957777A17662BAB3B71FB4FB51" author="Dumont" box="[917,1192,1174,1197]" pageId="11" pageNumber="262" refString="Dumont, H. J. &amp; Martens, K. (1996) The freshwater microcrustacea of Easter Island. Hydrobiologia, 325, 83 - 99. http: // dx. doi. org / 10.1007 / BF 00028269" type="journal article" year="1996">Dumont &amp; Martens 1996</bibRefCitation>
). However, in younger females (ovigerous, but smaller), the postabdomen may sometimes be quite short (two times as long as wide), even without marked preanal portion.
</paragraph>
<paragraph id="0A75C0647777A17661E8B3D719EDF943" blockId="11.[151,1437,151,2015]" pageId="11" pageNumber="262">
The 
<emphasis id="38BE1C767777A17661D3B3D61A8FFAF3" box="[252,403,1270,1295]" italics="true" pageId="11" pageNumber="262">O. pulchella-</emphasis>
group contains a few species with basically strong similarities in postabdomen shape and limbs, including, at least, 
<taxonomicName id="CDCABBE77777A17660ECB23A18AAFACF" authority="de Guerne &amp; Richard, 1893" authorityName="de Guerne &amp; Richard" authorityYear="1893" box="[451,950,1306,1331]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C767777A17660ECB23A1949FACF" box="[451,597,1306,1331]" italics="true" pageId="11" pageNumber="262">O. cambouei</emphasis>
(de Guerne &amp; Richard, 1893)
</taxonomicName>
, 
<taxonomicName id="CDCABBE77777A17662EAB23A1FECFACF" authority="King, 1853" authorityName="King" authorityYear="1853" box="[965,1264,1306,1331]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767777A17662EAB23A1F4EFACF" box="[965,1106,1306,1331]" italics="true" pageId="11" pageNumber="262">O. pulchella</emphasis>
(King, 1853)
</taxonomicName>
and 
<taxonomicName id="CDCABBE77777A1766403B23A1A3BFAAB" authority="Sars, 1901" authorityName="Sars" authorityYear="1901" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767777A1766403B23A1E80FACF" box="[1324,1436,1306,1331]" italics="true" pageId="11" pageNumber="262">O. glabra</emphasis>
(Sars, 1901)
</taxonomicName>
. I do not consider 
<taxonomicName id="CDCABBE77777A1766328B21E1809FAAB" authority="Sars, 1888" authorityName="Sars" authorityYear="1888" box="[519,789,1342,1367]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="38BE1C767777A1766328B21E1962FAAB" box="[519,638,1342,1367]" italics="true" pageId="11" pageNumber="262">O. archeri</emphasis>
(Sars, 1888)
</taxonomicName>
and 
<taxonomicName id="CDCABBE77777A176627CB21E1F60FAAB" authority="Ruhe, 1914" authorityName="Ruhe" authorityYear="1914" box="[851,1148,1342,1367]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="capensis">
<emphasis id="38BE1C767777A176627CB21E18C6FAAA" box="[851,986,1343,1366]" italics="true" pageId="11" pageNumber="262">O. capensis</emphasis>
(Rühe, 1914)
</taxonomicName>
as part of this group, in particular 
<taxonomicName id="CDCABBE77777A1766020B2421A9BFA87" box="[271,391,1378,1403]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="38BE1C767777A1766020B2421A9BFA87" box="[271,391,1378,1403]" italics="true" pageId="11" pageNumber="262">O. archeri</emphasis>
</taxonomicName>
which has special features on the limbs and a completely different male postabdomen, although the postabdomen shape resembles that of 
<taxonomicName id="CDCABBE77777A17663C3B2A61863FA63" box="[748,895,1414,1439]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C767777A17663C3B2A61863FA63" box="[748,895,1414,1439]" italics="true" pageId="11" pageNumber="262">O. cambouei</emphasis>
</taxonomicName>
. Male postabdomen shape in 
<emphasis id="38BE1C767777A17665CEB2A61A18FA3F" italics="true" pageId="11" pageNumber="262">
<taxonomicName id="CDCABBE77777A17665CEB2A61E6EFA63" box="[1249,1394,1414,1439]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pulchella">O. pulchella</taxonomicName>
, 
<taxonomicName id="CDCABBE77777A17664AEB2A61A18FA3F" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="cambouei">O. cambouei</taxonomicName>
</emphasis>
and 
<taxonomicName id="CDCABBE77777A176606BB28A1AABFA3F" box="[324,439,1450,1475]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767777A176606BB28A1AABFA3F" box="[324,439,1450,1475]" italics="true" pageId="11" pageNumber="262">O. glabra</emphasis>
</taxonomicName>
in comparison to 
<taxonomicName id="CDCABBE77777A17663BAB28A1810FA3F" box="[661,780,1451,1475]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17663BAB28A1810FA3F" box="[661,780,1451,1475]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A1766237B28B186AFA3E" box="[792,886,1450,1475]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A1766237B28B186CFA3F" bold="true" box="[792,880,1450,1475]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
, show a basic similarity in the common male postabdomen 
<typeStatus id="D5717EC67777A176601BB2EE1A78FA1B" box="[308,356,1487,1511]" pageId="11" pageNumber="262">type</typeStatus>
in the genus (
<figureCitation id="92F1DCE17777A176632CB2EF1955FA1B" box="[515,585,1486,1511]" captionStart="FIGURE 4" captionStartId="9.[151,250,1851,1873]" captionTargetBox="[210,1363,205,1826]" captionTargetId="figure@9.[200,1374,193,1837]" captionTargetPageId="9" captionText="FIGURE 4. Ovalona pascua sp. nov. Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. B, comparison O. pascua sp. nov adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2015), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b), O. weinecki after Frey (1988). Not to scale (B)." httpUri="https://zenodo.org/record/258159/files/figure.png" pageId="11" pageNumber="262">Fig. 4</figureCitation>
). The male postabdomen shape shows some affinity with 
<emphasis id="38BE1C767777A17665FBB2EE1E54FA1B" box="[1236,1352,1486,1511]" italics="true" pageId="11" pageNumber="262">
<taxonomicName id="CDCABBE77777A17665FBB2EE1E5FFA1B" box="[1236,1347,1486,1511]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="glabra">O. glabra</taxonomicName>
,
</emphasis>
having a broad rectangular distal portion and a short terminal claw (
<figureCitation id="92F1DCE17777A1766218B2D31867F9F7" box="[823,891,1522,1547]" captionStart="FIGURE 4" captionStartId="9.[151,250,1851,1873]" captionTargetBox="[210,1363,205,1826]" captionTargetId="figure@9.[200,1374,193,1837]" captionTargetPageId="9" captionText="FIGURE 4. Ovalona pascua sp. nov. Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. B, comparison O. pascua sp. nov adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2015), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b), O. weinecki after Frey (1988). Not to scale (B)." httpUri="https://zenodo.org/record/258159/files/figure.png" pageId="11" pageNumber="262">Fig. 4</figureCitation>
B). In this feature, the male is closer to 
<taxonomicName id="CDCABBE77777A1766400B2D21E80F9F7" box="[1327,1436,1522,1547]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767777A1766400B2D21E80F9F7" box="[1327,1436,1522,1547]" italics="true" pageId="11" pageNumber="262">O. glabra</emphasis>
</taxonomicName>
than to 
<taxonomicName id="CDCABBE77777A17661DFB1361A60F9D3" box="[240,380,1558,1583]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767777A17661DFB1361A60F9D3" box="[240,380,1558,1583]" italics="true" pageId="11" pageNumber="262">O. pulchella</emphasis>
</taxonomicName>
and 
<emphasis id="38BE1C767777A1766097B136194CF9D3" box="[440,592,1558,1583]" italics="true" pageId="11" pageNumber="262">
<taxonomicName id="CDCABBE77777A1766097B1361950F9D3" box="[440,588,1558,1583]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="cambouei">O. cambouei</taxonomicName>
,
</emphasis>
which have a longer terminal claw and a long basal spine (
<bibRefCitation id="6E5BBD957777A176642CB1371E88F9D3" author="Sinev" box="[1283,1428,1558,1583]" pageId="11" pageNumber="262" refString="Sinev, A. Y. (2001 a) Redescription of Alona glabra Sars, 1901, a South American species of the pulchella - group (Chydoridae, Anomopoda, Branchiopoda). Arthropoda Selecta, 10 (4), 273 - 280." type="journal article" year="2001" yearSuffix="a">Sinev 2001a</bibRefCitation>
) (
<figureCitation id="92F1DCE17777A17661B0B11B1BF6F9AF" box="[159,234,1594,1619]" captionStart="FIGURE 4" captionStartId="9.[151,250,1851,1873]" captionTargetBox="[210,1363,205,1826]" captionTargetId="figure@9.[200,1374,193,1837]" captionTargetPageId="9" captionText="FIGURE 4. Ovalona pascua sp. nov. Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. B, comparison O. pascua sp. nov adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2015), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b), O. weinecki after Frey (1988). Not to scale (B)." httpUri="https://zenodo.org/record/258159/files/figure.png" pageId="11" pageNumber="262">Fig. 4</figureCitation>
B). However, 
<taxonomicName id="CDCABBE77777A17660BCB11A1916F9AF" box="[403,522,1595,1619]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua">
<emphasis id="38BE1C767777A17660BCB11A1916F9AF" box="[403,522,1595,1619]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
remains distinct from 
<taxonomicName id="CDCABBE77777A176620DB11A188AF9AF" box="[802,918,1594,1619]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767777A176620DB11A188AF9AF" box="[802,918,1594,1619]" italics="true" pageId="11" pageNumber="262">O. glabra</emphasis>
</taxonomicName>
in both male (
<figureCitation id="92F1DCE17777A176657DB11B1F80F9AF" box="[1106,1180,1594,1619]" captionStart="FIGURE 4" captionStartId="9.[151,250,1851,1873]" captionTargetBox="[210,1363,205,1826]" captionTargetId="figure@9.[200,1374,193,1837]" captionTargetPageId="9" captionText="FIGURE 4. Ovalona pascua sp. nov. Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. B, comparison O. pascua sp. nov adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2015), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b), O. weinecki after Frey (1988). Not to scale (B)." httpUri="https://zenodo.org/record/258159/files/figure.png" pageId="11" pageNumber="262">Fig. 4</figureCitation>
) and female (
<figureCitation id="92F1DCE17777A1766465B11B1E8FF9AF" box="[1354,1427,1594,1619]" captionStart="FIGURE 5" captionStartId="12.[151,250,1315,1337]" captionTargetBox="[156,1424,312,1284]" captionTargetId="figure@12.[150,1436,301,1293]" captionTargetPageId="12" captionText="FIGURE 5. Ovalona pascua sp. nov. adult female postabdomen shape (variation, four specimens from different localities, from top to bottom Hanga Tuu Hata, Vai-Atara, Teravaka, Hanga Rao), compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2001 b), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b) and O. weinecki after Van Damme &amp; Dumont (2008 a). Not to scale." httpUri="https://zenodo.org/record/258160/files/figure.png" pageId="11" pageNumber="262">Fig. 5</figureCitation>
) postabdomen. In the male postabdomen, 
<taxonomicName id="CDCABBE77777A1766341B17E19FEF98A" box="[622,738,1631,1654]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua">
<emphasis id="38BE1C767777A1766341B17E19FEF98A" box="[622,738,1631,1654]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
retains a deep preanal portion (
<figureCitation id="92F1DCE17777A176657CB17F1F86F98B" box="[1107,1178,1630,1655]" captionStart="FIGURE 4" captionStartId="9.[151,250,1851,1873]" captionTargetBox="[210,1363,205,1826]" captionTargetId="figure@9.[200,1374,193,1837]" captionTargetPageId="9" captionText="FIGURE 4. Ovalona pascua sp. nov. Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. B, comparison O. pascua sp. nov adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2015), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b), O. weinecki after Frey (1988). Not to scale (B)." httpUri="https://zenodo.org/record/258159/files/figure.png" pageId="11" pageNumber="262">Fig. 4</figureCitation>
), as in the females. In addition, 
<taxonomicName id="CDCABBE77777A176602EB1A21A68F967" box="[257,372,1667,1691]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A176602EB1A21A68F967" box="[257,372,1667,1691]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A1766053B1A31AC9F966" box="[380,469,1666,1691]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A1766053B1A31AD3F967" bold="true" box="[380,463,1666,1691]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
has very short marginal spinules and lateral fascicles (
<figureCitation id="92F1DCE17777A176656EB1A31F99F967" box="[1089,1157,1666,1691]" captionStart="FIGURE 4" captionStartId="9.[151,250,1851,1873]" captionTargetBox="[210,1363,205,1826]" captionTargetId="figure@9.[200,1374,193,1837]" captionTargetPageId="9" captionText="FIGURE 4. Ovalona pascua sp. nov. Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. B, comparison O. pascua sp. nov adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2015), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b), O. weinecki after Frey (1988). Not to scale (B)." httpUri="https://zenodo.org/record/258159/files/figure.png" pageId="11" pageNumber="262">Fig. 4</figureCitation>
A), versus long marginal and lateral spinules in 
<taxonomicName id="CDCABBE77777A17660BCB186191CF943" box="[403,512,1702,1727]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767777A17660BCB186191CF943" box="[403,512,1702,1727]" italics="true" pageId="11" pageNumber="262">O. glabra</emphasis>
</taxonomicName>
(
<bibRefCitation id="6E5BBD957777A1766321B1871982F943" author="Sinev" box="[526,670,1702,1727]" pageId="11" pageNumber="262" refString="Sinev, A. Y. (2001 a) Redescription of Alona glabra Sars, 1901, a South American species of the pulchella - group (Chydoridae, Anomopoda, Branchiopoda). Arthropoda Selecta, 10 (4), 273 - 280." type="journal article" year="2001" yearSuffix="a">Sinev 2001a</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957777A1766386B18719FAF943" author="Sinev" box="[681,742,1702,1727]" pageId="11" pageNumber="262" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">2015</bibRefCitation>
).
</paragraph>
<paragraph id="0A75C0647777A17661E8B1EA1862F847" blockId="11.[151,1437,151,2015]" pageId="11" pageNumber="262">
In the female postabdomen, 
<emphasis id="38BE1C767777A1766325B1EA1983F91F" box="[522,671,1738,1763]" italics="true" pageId="11" pageNumber="262">O. pulchella-</emphasis>
related species all have an elongate shape with strongly protruding, acute dorsodistal margin, different from the straight angled, not protruding dorsodistal margin in 
<taxonomicName id="CDCABBE77777A17665E3B1CE1E21F8FA" box="[1228,1341,1775,1798]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17665E3B1CE1E21F8FA" box="[1228,1341,1775,1798]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A176646CB1CF1E80F8FA" box="[1347,1436,1774,1799]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A176646CB1CF1E89F8FB" bold="true" box="[1347,1429,1774,1799]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
(
<figureCitation id="92F1DCE17777A17661B0B0331BFFF8D7" box="[159,227,1810,1835]" captionStart="FIGURE 5" captionStartId="12.[151,250,1315,1337]" captionTargetBox="[156,1424,312,1284]" captionTargetId="figure@12.[150,1436,301,1293]" captionTargetPageId="12" captionText="FIGURE 5. Ovalona pascua sp. nov. adult female postabdomen shape (variation, four specimens from different localities, from top to bottom Hanga Tuu Hata, Vai-Atara, Teravaka, Hanga Rao), compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2001 b), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b) and O. weinecki after Van Damme &amp; Dumont (2008 a). Not to scale." httpUri="https://zenodo.org/record/258160/files/figure.png" pageId="11" pageNumber="262">Fig. 5</figureCitation>
). The preanal portion in 
<taxonomicName id="CDCABBE77777A17660D8B032197BF8D7" box="[503,615,1811,1835]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17660D8B032197BF8D7" box="[503,615,1811,1835]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A1766341B03319DBF8D6" box="[622,711,1810,1835]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A1766341B03319DCF8D7" bold="true" box="[622,704,1810,1835]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
is also clearly deeper in comparison to 
<emphasis id="38BE1C767777A17665AFB0321E08F8D7" box="[1152,1300,1810,1835]" italics="true" pageId="11" pageNumber="262">O. pulchella-</emphasis>
like species. In addition, 
<taxonomicName id="CDCABBE77777A1766031B0161AB4F8B3" box="[286,424,1846,1871]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767777A1766031B0161AB4F8B3" box="[286,424,1846,1871]" italics="true" pageId="11" pageNumber="262">O. pulchella</emphasis>
</taxonomicName>
and closest relatives have a short seta on the first endopod segment of the second antenna, which seems a valid synapomorphy for this species cluster, while 
<taxonomicName id="CDCABBE77777A17662BBB07A1F14F88F" box="[916,1032,1883,1907]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17662BBB07A1F14F88F" box="[916,1032,1883,1907]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A176653DB07B1F72F88E" box="[1042,1134,1882,1907]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A176653DB07B1F7BF88F" bold="true" box="[1042,1127,1882,1907]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
has a clearly longer setae here. On the limbs, the flaming torch setae on the fourth endopod lack a distal portion in the 
<emphasis id="38BE1C767777A17665EAB05E1E47F86B" box="[1221,1371,1918,1943]" italics="true" pageId="11" pageNumber="262">O. pulchella-</emphasis>
group (
<bibRefCitation id="6E5BBD957777A17661B1B0831A2DF847" author="Sinev" box="[158,305,1954,1979]" pageId="11" pageNumber="262" refString="Sinev, A. Y. (2001 b) Separation of Alona cambouei Guerne &amp; Richard, 1893 from Alona pulchella King, 1853 (Branchiopoda, Anomopoda, Chydoridae). Arthropoda Selecta, 10 (1), 5 - 18." type="journal article" year="2001" yearSuffix="b">Sinev 2001b</bibRefCitation>
), which clearly differs in 
<taxonomicName id="CDCABBE77777A1766360B08219DCF847" box="[591,704,1955,1979]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A1766360B08219DCF847" box="[591,704,1955,1979]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A17663E7B083183DF846" box="[712,801,1954,1979]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A17663E7B0831806F847" bold="true" box="[712,794,1954,1979]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
as well.
</paragraph>
<paragraph id="0A75C0647777A17161E8B0E61AD9FF04" blockId="11.[151,1437,151,2015]" lastBlockId="12.[151,1436,151,248]" lastPageId="12" lastPageNumber="263" pageId="11" pageNumber="262">
So, it is clear that 
<taxonomicName id="CDCABBE77777A17660B6B0E61910F822" box="[409,524,1991,2014]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767777A17660B6B0E61910F822" box="[409,524,1991,2014]" italics="true" pageId="11" pageNumber="262">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7777A176633AB0E71973F822" box="[533,623,1990,2015]" pageId="11" pageNumber="262" rank="species">
<emphasis id="38BE1C767777A176633AB0E71974F823" bold="true" box="[533,616,1990,2015]" pageId="11" pageNumber="262">sp. nov</emphasis>
.
</taxonomicNameLabel>
is morphologically not directly similar to the widespread 
<emphasis id="38BE1C767777A1716429B0E61A44FF4C" italics="true" lastPageId="12" lastPageNumber="263" pageId="11" pageNumber="262">
<taxonomicName id="CDCABBE77777A1766429B0E61E8EF823" box="[1286,1426,1990,2015]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="11" pageNumber="262" phylum="Arthropoda" rank="species" species="pulchella">O. pulchella</taxonomicName>
- cambouei-glabra
</emphasis>
cluster. In analogy, the postabdomen shape in 
<taxonomicName id="CDCABBE77770A1716249B7B918C4FF4C" box="[870,984,152,176]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767770A1716249B7B918C4FF4C" box="[870,984,152,176]" italics="true" pageId="12" pageNumber="263">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7770A17162CFB7B61F26FF4C" box="[992,1082,151,176]" pageId="12" pageNumber="263" rank="species">
<emphasis id="38BE1C767770A17162CFB7B61F26FF4C" bold="true" box="[992,1082,151,176]" pageId="12" pageNumber="263">sp. nov.</emphasis>
</taxonomicNameLabel>
is markedly different from that in 
<taxonomicName id="CDCABBE77770A171619BB79C1900FF28" authority="Smirnov, 1988" authorityName="Smirnov" authorityYear="1988" box="[180,540,188,213]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="bromelicola">
<emphasis id="38BE1C767770A171619BB79C1A40FF29" box="[180,348,188,213]" italics="true" pageId="12" pageNumber="263">O. bromelicola</emphasis>
(Smirnov, 1988)
</taxonomicName>
and 
<taxonomicName id="CDCABBE77770A171637CB79C19CDFF29" box="[595,721,188,213]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="karelica">
<emphasis id="38BE1C767770A171637CB79C19CDFF29" box="[595,721,188,213]" italics="true" pageId="12" pageNumber="263">O. karelica</emphasis>
</taxonomicName>
, which both have a very short basal spine as well (
<bibRefCitation id="6E5BBD957770A1716421B79D1A01FF04" author="Van" pageId="12" pageNumber="263" refString="Van Damme, K., Sinev, A. Y. &amp; Dumont, H. G. (2011 b) Separation of Anthalona gen. n. from Alona Baird, 1843 (Branchiopoda: Cladocera: Anomopoda): morphology and evolution of scraping stenothermic alonines. Zootaxa, 2875, 1 - 64." type="journal article" year="2011" yearSuffix="b">
Van Damme 
<emphasis id="38BE1C767770A17161B8B7C01BD3FF04" box="[151,207,223,248]" italics="true" pageId="12" pageNumber="263">et al.</emphasis>
2011b
</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957770A1716006B7FE1AA5FF04" author="Sinev" box="[297,441,223,248]" pageId="12" pageNumber="263" refString="Sinev, A. Y. (2002 a) Place of a Central American bromeliad-inhabiting cladoceran Alona bromelicola Smirnov, 1988 within the genus (Branchiopoda: Anomopoda: Chydoridae). Arthropoda Selecta, 11 (2), 109 - 116." type="journal article" year="2002" yearSuffix="a">Sinev 2002a</bibRefCitation>
).
</paragraph>
<caption id="5EB590EC7770A17161B8B20218C2FA69" httpUri="https://zenodo.org/record/258160/files/figure.png" pageId="12" pageNumber="263" targetBox="[156,1424,312,1284]" targetPageId="12">
<paragraph id="0A75C0647770A17161B8B20218C2FA69" blockId="12.[151,1436,1315,1429]" pageId="12" pageNumber="263">
<emphasis id="38BE1C767770A17161B8B2021A09FAC4" bold="true" box="[151,277,1315,1337]" pageId="12" pageNumber="263">FIGURE 5.</emphasis>
<taxonomicName id="CDCABBE77770A1716031B2021ADBFAC5" box="[286,455,1315,1337]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767770A1716031B2021ADBFAC5" box="[286,455,1315,1337]" italics="true" pageId="12" pageNumber="263">Ovalona pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7770A17160E0B202193FFAC4" box="[463,547,1315,1336]" pageId="12" pageNumber="263" rank="species">
<emphasis id="38BE1C767770A17160E0B202193FFAC4" bold="true" box="[463,547,1315,1336]" pageId="12" pageNumber="263">sp. nov.</emphasis>
</taxonomicNameLabel>
adult female postabdomen shape (variation, four specimens from different localities, from top to bottom Hanga Tuu Hata, Vai-Atara, Teravaka, Hanga Rao), compared to three species of the circumtropical 
<emphasis id="38BE1C767770A17164ACB2631BE2FA8A" italics="true" pageId="12" pageNumber="263">O. pulchella-</emphasis>
complex and to 
<taxonomicName id="CDCABBE77770A1716086B2401938FA8A" box="[425,548,1376,1398]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767770A1716086B2401938FA8A" box="[425,548,1376,1398]" italics="true" pageId="12" pageNumber="263">O. weinecki</emphasis>
</taxonomicName>
. 
<taxonomicName id="CDCABBE77770A171631CB24019ABFA8A" box="[563,695,1376,1398]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C767770A171631CB24019ABFA8A" box="[563,695,1376,1398]" italics="true" pageId="12" pageNumber="263">O. cambouei</emphasis>
</taxonomicName>
after Sinev (2001b), 
<taxonomicName id="CDCABBE77770A17162B3B2401F1DFA8A" box="[924,1025,1376,1398]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767770A17162B3B2401F1DFA8A" box="[924,1025,1376,1398]" italics="true" pageId="12" pageNumber="263">O. glabra</emphasis>
</taxonomicName>
after Sinev (2001a), 
<taxonomicName id="CDCABBE77770A17165CBB2401E78FA8A" box="[1252,1380,1376,1398]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767770A17165CBB2401E78FA8A" box="[1252,1380,1376,1398]" italics="true" pageId="12" pageNumber="263">O. pulchella</emphasis>
</taxonomicName>
after Sinev (2001b) and 
<taxonomicName id="CDCABBE77770A1716077B2A11ACCFA69" box="[344,464,1407,1429]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767770A1716077B2A11ACCFA69" box="[344,464,1407,1429]" italics="true" pageId="12" pageNumber="263">O. weinecki</emphasis>
</taxonomicName>
after Van Damme &amp; Dumont (2008a). Not to scale.
</paragraph>
</caption>
<paragraph id="0A75C0647770A17161E8B2E31A62F852" blockId="12.[151,1437,1473,2038]" pageId="12" pageNumber="263">
In the “ 
<taxonomicName id="CDCABBE77770A1716034B2E01A6BFA26" box="[283,375,1473,1498]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="setulosa">
<emphasis id="38BE1C767770A1716034B2E01A6BFA26" box="[283,375,1473,1498]" italics="true" pageId="12" pageNumber="263">setulosa</emphasis>
</taxonomicName>
-group” (
<bibRefCitation id="6E5BBD957770A17160F3B2E0197CFA26" author="Sinev" box="[476,608,1473,1498]" pageId="12" pageNumber="263" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">Sinev 2015</bibRefCitation>
), the postabdomen seems shorter and because of the deep preanal portion, 
<taxonomicName id="CDCABBE77770A17161B8B2C71A15FA01" box="[151,265,1510,1533]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767770A17161B8B2C71A15FA01" box="[151,265,1510,1533]" italics="true" pageId="12" pageNumber="263">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7770A171603DB2C41A71FA02" box="[274,365,1509,1534]" pageId="12" pageNumber="263" rank="species">
<emphasis id="38BE1C767770A171603DB2C41A71FA02" bold="true" box="[274,365,1509,1534]" pageId="12" pageNumber="263">sp. nov.</emphasis>
</taxonomicNameLabel>
might be categorized here. Most species in this group have a rather unpronounced dorsodistal postabdominal corner, which is a rounded or a straight angle, but not strongly protruding as in the 
<taxonomicName id="CDCABBE77770A1716429B12B1E8EF9DE" box="[1286,1426,1545,1570]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767770A1716429B12B1E8EF9DE" box="[1286,1426,1545,1570]" italics="true" pageId="12" pageNumber="263">O. pulchella</emphasis>
</taxonomicName>
- group. However, the 
<emphasis id="38BE1C767770A17160A7B10C1AF1F9BA" box="[392,493,1581,1606]" italics="true" pageId="12" pageNumber="263">setulosa-</emphasis>
group sensu 
<bibRefCitation id="6E5BBD957770A1716352B10C180CF9BA" author="Sinev" box="[637,784,1581,1606]" pageId="12" pageNumber="263" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">Sinev (2015)</bibRefCitation>
might not be a natural assemblage. In fact, this seems to include several species that cannot be categorized under an 
<emphasis id="38BE1C767770A171621AB17318D6F996" box="[821,970,1617,1642]" italics="true" pageId="12" pageNumber="263">O. pulchella-</emphasis>
cluster, with a conspicuous postabdomen. 
<taxonomicName id="CDCABBE77770A17161B8B1571ADBF972" authority="Studer, 1848" authorityName="Studer" authorityYear="1848" box="[151,455,1653,1678]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767770A17161B8B1571A01F972" box="[151,285,1653,1678]" italics="true" pageId="12" pageNumber="263">O. weinecki</emphasis>
(Studer, 1848)
</taxonomicName>
takes a quite isolated position because of its unusual postabdomen, strongly rounded, and with small groups of marginal denticles. In addition, limb characters are quite different (not a bent seta on the exopodite of P3, and no exopodite seta on P2) (
<bibRefCitation id="6E5BBD957770A17163E8B19F1F2CF92A" author="Van" box="[711,1072,1726,1750]" pageId="12" pageNumber="263" refString="Van Damme, K. &amp; Dumont, H. J. (2008 a) Further division of Alona Baird, 1843: separation and position of Coronatella Dybowski &amp; Grochowski and Ovalona gen. n. (Crustacea: Cladocera). Zootaxa, 1960, 1 - 44." type="journal article" year="2008" yearSuffix="a">Van Damme &amp; Dumont 2008a</bibRefCitation>
, 
<tableCitation id="4748F5DF7770A1716510B19C1F88F92A" box="[1087,1172,1725,1750]" captionStart="TABLE 1" captionStartId="10.[151,239,152,175]" captionText="TABLE 1. Simplified character similarity matrix of Ovalona Van Damme &amp; Dumont, 2008 showing 12 characters across 17 species (adult female morphology), ordered by number of potential homologies with O. pascua sp. nov. (grey shading). 1. Head pore connection: present (grey), interrupted / absent (blank), intermediate (light grey); 2. Headshield notches: absent or one (grey), present (blank); 3. Labral keel: no setules (grey), setules (blank); 4. Antennal seta on first endopod segment: long, one third up to half of its length or more over last segment (grey), short, just reaching over last segment, less than one third of its length (blank); 5. P 2 exopodite seta: present (grey), absent (blank), intermediate / reduced (light grey); 6. P 3 exopodite setae arrangement with bent 4 th seta: present (grey), straight (blank), intermediate (light grey); 7. P 4 exopodite setae length fourth versus sixth seta: fourth seta shorter than sixth (grey), fourth and sixt of the same length (blank), fourth longer than sixth (light grey); 8. P 4 flaming torch setae, distal portion: developed, present (grey), reduced or absent (blank); 9. Postabdomen length: 2 – 2.5 times as long as wide (grey), elongate, more than 2. 5 times as long as wide (blank); 10. Postabdominal distal angle: present, sharp / angular (grey), rounded, no clear angle (blank); 11. Postabdominal distal angle II: not strongly protruding (grey), strongly protruding (blank), intermediate (light grey); 12. Postabdomen, postanal marginal denticles (not the distalmost 3 – 4 larger teeth): groups of three short, similar, broad teeth, distalmost just longer than proximal teeth in the group (grey); long distal teeth per group, sometimes only a single long tooth, accompanied by small (less than half the size of the distal tooth) proximal denticles (blank); short conical teeth with small denticles (light grey). Abbreviations for taxa and source of character states: agua, O. aguascalientensis (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); alti, O. altiplana (Kotov, Sinev &amp; Berrios, 2010) (Kotov et al. 2010); anam, O. anamariae (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); anas, O. anastasia (Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev et al. 2012); arch, O. archeri (Sars, 1888) (Sinev 2002 b); azor, O. azorica (Frenzel &amp; Alonso, 1988) (Sinev et al. 2012); brom, O. bromelicola (Smirnov, 1988) (Sinev 2002 a); camb, O. cambouei (de Guerne &amp; Richard, 1893) (Sinev 2001 b, 2015); cape, O. capensis (Rühe, 1914) (Van Damme et al. 2013); glab, O. glabra (Sars, 1901) (Sinev 2001 a); kain, O. kaingang (Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa et al. 2015); nigr, O. nigra (Smirnov, 1996) (Kotov et al. 2010); nura, O. nuragica (Margaritora, 1971) (Sinev 2015); pasc, Ovalona pascua sp. nov. (this study); pulc, O. pulchella (King, 1853) (Sinev 2001 b); setu, O. setulosa (Megard, 1967) (Sinev 2009); wein, O. weinecki (Studer, 1878) (Frey 1988, Van Damme &amp; Dumont 2008 a); O. karelica (Stenroos, 1897) and males not included (data deficient). Distribution, abbreviations after Forró et al. (2008). Asterisk indicates local endemics." pageId="12" pageNumber="263">Table 1</tableCitation>
). Both in female (
<bibRefCitation id="6E5BBD957770A1716440B19F1ADCF906" author="Van" pageId="12" pageNumber="263" refString="Van Damme, K. &amp; Dumont, H. J. (2008 a) Further division of Alona Baird, 1843: separation and position of Coronatella Dybowski &amp; Grochowski and Ovalona gen. n. (Crustacea: Cladocera). Zootaxa, 1960, 1 - 44." type="journal article" year="2008" yearSuffix="a">Van Damme &amp; Dumont 2008a</bibRefCitation>
) and male (Frey 1988) postabdomen shape, 
<taxonomicName id="CDCABBE77770A1716292B1C31F5FF906" box="[957,1091,1761,1786]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767770A1716292B1C31F5FF906" box="[957,1091,1761,1786]" italics="true" pageId="12" pageNumber="263">O. weinecki</emphasis>
</taxonomicName>
is markedly different from 
<taxonomicName id="CDCABBE77770A17164AEB1C31BFAF8E1" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767770A17164AEB1C31BFAF8E1" italics="true" pageId="12" pageNumber="263">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7770A17161C2B0241A5BF8E2" box="[237,327,1797,1822]" pageId="12" pageNumber="263" rank="species">
<emphasis id="38BE1C767770A17161C2B0241A5BF8E2" bold="true" box="[237,327,1797,1822]" pageId="12" pageNumber="263">sp. nov.</emphasis>
</taxonomicNameLabel>
in having a round distal margin (
<figureCitation id="92F1DCE17770A1716394B024183EF8E2" box="[699,802,1797,1822]" captionStart-0="FIGURE 4" captionStart-1="FIGURE 5" captionStartId-0="9.[151,250,1851,1873]" captionStartId-1="12.[151,250,1315,1337]" captionTargetBox-0="[210,1363,205,1826]" captionTargetBox-1="[156,1424,312,1284]" captionTargetId-0="figure@9.[200,1374,193,1837]" captionTargetId-1="figure@12.[150,1436,301,1293]" captionTargetPageId-0="9" captionTargetPageId-1="12" captionText-0="FIGURE 4. Ovalona pascua sp. nov. Adult male postabdomen and shape in comparison to selected species (B). A, postabdomen, complete, loc. pool North of Hanga Roa village, West of Easter Island, Chile, coll. by H. J. Dumont and K. Martens, 18. VIII. 1990. B, comparison O. pascua sp. nov adult male postabdomen shape, three specimens from different localities (top, after Dumont &amp; Martens (1996), centre, pool at Hanga Rao, bottom, pool at Hanga Tuu Hata) compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2015), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b), O. weinecki after Frey (1988). Not to scale (B)." captionText-1="FIGURE 5. Ovalona pascua sp. nov. adult female postabdomen shape (variation, four specimens from different localities, from top to bottom Hanga Tuu Hata, Vai-Atara, Teravaka, Hanga Rao), compared to three species of the circumtropical O. pulchella- complex and to O. weinecki. O. cambouei after Sinev (2001 b), O. glabra after Sinev (2001 a), O. pulchella after Sinev (2001 b) and O. weinecki after Van Damme &amp; Dumont (2008 a). Not to scale." httpUri-0="https://zenodo.org/record/258159/files/figure.png" httpUri-1="https://zenodo.org/record/258160/files/figure.png" pageId="12" pageNumber="263">Figs 4–5</figureCitation>
). In the similarity matrix (
<tableCitation id="4748F5DF7770A1716569B0241F86F8E2" box="[1094,1178,1797,1822]" captionStart="TABLE 1" captionStartId="10.[151,239,152,175]" captionText="TABLE 1. Simplified character similarity matrix of Ovalona Van Damme &amp; Dumont, 2008 showing 12 characters across 17 species (adult female morphology), ordered by number of potential homologies with O. pascua sp. nov. (grey shading). 1. Head pore connection: present (grey), interrupted / absent (blank), intermediate (light grey); 2. Headshield notches: absent or one (grey), present (blank); 3. Labral keel: no setules (grey), setules (blank); 4. Antennal seta on first endopod segment: long, one third up to half of its length or more over last segment (grey), short, just reaching over last segment, less than one third of its length (blank); 5. P 2 exopodite seta: present (grey), absent (blank), intermediate / reduced (light grey); 6. P 3 exopodite setae arrangement with bent 4 th seta: present (grey), straight (blank), intermediate (light grey); 7. P 4 exopodite setae length fourth versus sixth seta: fourth seta shorter than sixth (grey), fourth and sixt of the same length (blank), fourth longer than sixth (light grey); 8. P 4 flaming torch setae, distal portion: developed, present (grey), reduced or absent (blank); 9. Postabdomen length: 2 – 2.5 times as long as wide (grey), elongate, more than 2. 5 times as long as wide (blank); 10. Postabdominal distal angle: present, sharp / angular (grey), rounded, no clear angle (blank); 11. Postabdominal distal angle II: not strongly protruding (grey), strongly protruding (blank), intermediate (light grey); 12. Postabdomen, postanal marginal denticles (not the distalmost 3 – 4 larger teeth): groups of three short, similar, broad teeth, distalmost just longer than proximal teeth in the group (grey); long distal teeth per group, sometimes only a single long tooth, accompanied by small (less than half the size of the distal tooth) proximal denticles (blank); short conical teeth with small denticles (light grey). Abbreviations for taxa and source of character states: agua, O. aguascalientensis (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); alti, O. altiplana (Kotov, Sinev &amp; Berrios, 2010) (Kotov et al. 2010); anam, O. anamariae (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); anas, O. anastasia (Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev et al. 2012); arch, O. archeri (Sars, 1888) (Sinev 2002 b); azor, O. azorica (Frenzel &amp; Alonso, 1988) (Sinev et al. 2012); brom, O. bromelicola (Smirnov, 1988) (Sinev 2002 a); camb, O. cambouei (de Guerne &amp; Richard, 1893) (Sinev 2001 b, 2015); cape, O. capensis (Rühe, 1914) (Van Damme et al. 2013); glab, O. glabra (Sars, 1901) (Sinev 2001 a); kain, O. kaingang (Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa et al. 2015); nigr, O. nigra (Smirnov, 1996) (Kotov et al. 2010); nura, O. nuragica (Margaritora, 1971) (Sinev 2015); pasc, Ovalona pascua sp. nov. (this study); pulc, O. pulchella (King, 1853) (Sinev 2001 b); setu, O. setulosa (Megard, 1967) (Sinev 2009); wein, O. weinecki (Studer, 1878) (Frey 1988, Van Damme &amp; Dumont 2008 a); O. karelica (Stenroos, 1897) and males not included (data deficient). Distribution, abbreviations after Forró et al. (2008). Asterisk indicates local endemics." pageId="12" pageNumber="263">Table 1</tableCitation>
), 
<taxonomicName id="CDCABBE77770A171659DB0271E2AF8E2" box="[1202,1334,1797,1822]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767770A171659DB0271E2AF8E2" box="[1202,1334,1797,1822]" italics="true" pageId="12" pageNumber="263">O. weinecki</emphasis>
</taxonomicName>
is on the third place, yet in fact, if male features would be included (although not known for all species), the similarity would be less. 
<taxonomicName id="CDCABBE77770A1716012B06F1AB2F89A" box="[317,430,1870,1894]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767770A1716012B06F1AB2F89A" box="[317,430,1870,1894]" italics="true" pageId="12" pageNumber="263">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7770A1716099B06C1913F89A" box="[438,527,1869,1894]" pageId="12" pageNumber="263" rank="species">
<emphasis id="38BE1C767770A1716099B06C1913F89A" bold="true" box="[438,527,1869,1894]" pageId="12" pageNumber="263">sp. nov.</emphasis>
</taxonomicNameLabel>
is therefore not identical to 
<taxonomicName id="CDCABBE77770A1716264B06F18D3F89A" box="[843,975,1869,1894]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767770A1716264B06F18D3F89A" box="[843,975,1869,1894]" italics="true" pageId="12" pageNumber="263">O. weinecki</emphasis>
</taxonomicName>
, or other “peculiar” species with a round distal margin like 
<taxonomicName id="CDCABBE77770A1716045B05318E7F876" authority="(Frenzel &amp; Alonso, 1988) (Sinev et al. 2012)" authorityName="(Frenzel &amp; Alonso, 1988) (Sinev et al." authorityYear="2012" box="[362,1019,1905,1930]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="azorica">
<emphasis id="38BE1C767770A1716045B0531AFFF876" box="[362,483,1906,1930]" italics="true" pageId="12" pageNumber="263">O. azorica</emphasis>
(Frenzel &amp; Alonso, 1988) (Sinev 
<emphasis id="38BE1C767770A171625BB05218ACF876" box="[884,944,1905,1930]" italics="true" pageId="12" pageNumber="263">et al.</emphasis>
2012)
</taxonomicName>
and 
<taxonomicName id="CDCABBE77770A1716518B0531A66F852" authority="(Ruhe, 1914) (Van Damme et al. 2013)" authorityName="(Ruhe, 1914) (Van Damme et al." authorityYear="2013" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="capensis">
<emphasis id="38BE1C767770A1716518B0531FA0F876" box="[1079,1212,1906,1930]" italics="true" pageId="12" pageNumber="263">O. capensis</emphasis>
(Rühe, 1914) (
<bibRefCitation id="6E5BBD957770A1716441B0531A6EF852" author="Van" pageId="12" pageNumber="263" refString="Van Damme, K., Bekker, E. I. &amp; Kotov, A. A (2013) Endemism in the Cladocera (Crustacea: Branchiopoda) of Southern Africa. Journal of Limnology, 72 (3), 440 - 463. http: // dx. doi. org / 10.4081 / jlimnol. 2013. e 36" type="journal article" year="2013">
Van Damme 
<emphasis id="38BE1C767770A17161D9B0B61A33F852" box="[246,303,1941,1966]" italics="true" pageId="12" pageNumber="263">et al.</emphasis>
2013
</bibRefCitation>
)
</taxonomicName>
.
</paragraph>
<paragraph id="0A75C0647770A17061E8B09B1816FE08" blockId="12.[151,1437,1473,2038]" lastBlockId="13.[151,1436,151,1653]" lastPageId="13" lastPageNumber="264" pageId="12" pageNumber="263">
Out of the 12 selected characters in the matrix, 
<taxonomicName id="CDCABBE77770A17163CFB09B184EF82E" box="[736,850,1978,2002]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767770A17163CFB09B184EF82E" box="[736,850,1978,2002]" italics="true" pageId="12" pageNumber="263">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7770A1716275B09818A8F82E" box="[858,948,1977,2002]" pageId="12" pageNumber="263" rank="species">
<emphasis id="38BE1C767770A1716275B09818A8F82E" bold="true" box="[858,948,1977,2002]" pageId="12" pageNumber="263">sp. nov.</emphasis>
</taxonomicNameLabel>
shares similarities in 11 characters with 
<taxonomicName id="CDCABBE77770A17164AEB09B1943F80A" authority="Kotov, Sinev &amp; Berrios, 2010" authorityName="Kotov, Sinev &amp; Berrios" authorityYear="2010" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="altiplana">
<emphasis id="38BE1C767770A17164AEB09B1BE0F80A" italics="true" pageId="12" pageNumber="263">O. altiplana</emphasis>
<bibRefCitation id="6E5BBD957770A1716029B0FF1943F80A" author="Kotov" box="[262,607,2013,2038]" pageId="12" pageNumber="263" refString="Kotov, A. A., Sinev, A. Y. &amp; Berrios, V. L. (2010) The Cladocera (Crustacea: Branchiopoda) of six high altitude water bodies in the North Chilean Andes, with discussion of Andean endemism. Zootaxa, 2430, 1 - 66." type="journal article" year="2010">Kotov, Sinev &amp; Berrios, 2010</bibRefCitation>
</taxonomicName>
and 10 characters with 
<taxonomicName id="CDCABBE77770A1706258B0FF1BD3FF4C" authority="Sousa, Elmoor-Loureiro &amp; Santos, 2015" authorityName="Sousa, Elmoor-Loureiro &amp; Santos" authorityYear="2015" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" lastPageId="13" lastPageNumber="264" order="Diplostraca" pageId="12" pageNumber="263" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C767770A1716258B0FF1F18F80A" box="[887,1028,2013,2038]" italics="true" pageId="12" pageNumber="263">O. kaingang</emphasis>
<bibRefCitation id="6E5BBD957770A1706521B0FF1BD3FF4C" author="Sousa" lastPageId="13" lastPageNumber="264" pageId="12" pageNumber="263" refString="Sousa, F. D. R., Elmoor-Loureiro, L. M. A. &amp; Santos, S. (2015) Alona kaingang (Crustacea, Cladocera, Aloninae): a new species of the pulchella group, with identification key to Neotropical species. Zoological Studies, 54, 1 - 12. http: // dx. doi. org / 10.1186 / s 40555 - 015 - 0128 - 5" type="journal article" year="2015">Sousa, Elmoor-Loureiro &amp; Santos, 2015</bibRefCitation>
</taxonomicName>
(
<tableCitation id="4748F5DF7771A17061F2B7B61A2CFF4C" box="[221,304,151,176]" captionStart="TABLE 1" captionStartId="10.[151,239,152,175]" captionText="TABLE 1. Simplified character similarity matrix of Ovalona Van Damme &amp; Dumont, 2008 showing 12 characters across 17 species (adult female morphology), ordered by number of potential homologies with O. pascua sp. nov. (grey shading). 1. Head pore connection: present (grey), interrupted / absent (blank), intermediate (light grey); 2. Headshield notches: absent or one (grey), present (blank); 3. Labral keel: no setules (grey), setules (blank); 4. Antennal seta on first endopod segment: long, one third up to half of its length or more over last segment (grey), short, just reaching over last segment, less than one third of its length (blank); 5. P 2 exopodite seta: present (grey), absent (blank), intermediate / reduced (light grey); 6. P 3 exopodite setae arrangement with bent 4 th seta: present (grey), straight (blank), intermediate (light grey); 7. P 4 exopodite setae length fourth versus sixth seta: fourth seta shorter than sixth (grey), fourth and sixt of the same length (blank), fourth longer than sixth (light grey); 8. P 4 flaming torch setae, distal portion: developed, present (grey), reduced or absent (blank); 9. Postabdomen length: 2 – 2.5 times as long as wide (grey), elongate, more than 2. 5 times as long as wide (blank); 10. Postabdominal distal angle: present, sharp / angular (grey), rounded, no clear angle (blank); 11. Postabdominal distal angle II: not strongly protruding (grey), strongly protruding (blank), intermediate (light grey); 12. Postabdomen, postanal marginal denticles (not the distalmost 3 – 4 larger teeth): groups of three short, similar, broad teeth, distalmost just longer than proximal teeth in the group (grey); long distal teeth per group, sometimes only a single long tooth, accompanied by small (less than half the size of the distal tooth) proximal denticles (blank); short conical teeth with small denticles (light grey). Abbreviations for taxa and source of character states: agua, O. aguascalientensis (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); alti, O. altiplana (Kotov, Sinev &amp; Berrios, 2010) (Kotov et al. 2010); anam, O. anamariae (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); anas, O. anastasia (Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev et al. 2012); arch, O. archeri (Sars, 1888) (Sinev 2002 b); azor, O. azorica (Frenzel &amp; Alonso, 1988) (Sinev et al. 2012); brom, O. bromelicola (Smirnov, 1988) (Sinev 2002 a); camb, O. cambouei (de Guerne &amp; Richard, 1893) (Sinev 2001 b, 2015); cape, O. capensis (Rühe, 1914) (Van Damme et al. 2013); glab, O. glabra (Sars, 1901) (Sinev 2001 a); kain, O. kaingang (Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa et al. 2015); nigr, O. nigra (Smirnov, 1996) (Kotov et al. 2010); nura, O. nuragica (Margaritora, 1971) (Sinev 2015); pasc, Ovalona pascua sp. nov. (this study); pulc, O. pulchella (King, 1853) (Sinev 2001 b); setu, O. setulosa (Megard, 1967) (Sinev 2009); wein, O. weinecki (Studer, 1878) (Frey 1988, Van Damme &amp; Dumont 2008 a); O. karelica (Stenroos, 1897) and males not included (data deficient). Distribution, abbreviations after Forró et al. (2008). Asterisk indicates local endemics." pageId="13" pageNumber="264">Table 1</tableCitation>
). The Easter 
<collectingCountry id="72DD80F47771A17060E9B7B61916FF4C" box="[454,522,151,176]" name="Iceland" pageId="13" pageNumber="264">Island</collectingCountry>
species differs from both in the groups of marginal denticles on the postabdomen, as opposed to long singular teeth (Kotov 
<emphasis id="38BE1C767771A1706355B79C19AAFF29" box="[634,694,188,213]" italics="true" pageId="13" pageNumber="264">et al.</emphasis>
2010, 
<bibRefCitation id="6E5BBD957771A1706226B79D1891FF29" author="Sinev" box="[777,909,188,213]" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">Sinev 2015</bibRefCitation>
) in 
<taxonomicName id="CDCABBE77771A1706291B79C1F55FF29" box="[958,1097,188,213]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="altiplana">
<emphasis id="38BE1C767771A1706291B79C1F55FF29" box="[958,1097,188,213]" italics="true" pageId="13" pageNumber="264">O. altiplana</emphasis>
</taxonomicName>
and single conical teeth (not groups) in 
<taxonomicName id="CDCABBE77771A170603BB7C11998FF04" authority="Sousa et al. 2015" authorityName="Sousa et al." authorityYear="2015" box="[276,644,223,248]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C767771A170603BB7C11A83FF04" box="[276,415,223,248]" italics="true" pageId="13" pageNumber="264">O. kaingang</emphasis>
(
<bibRefCitation id="6E5BBD957771A170609FB7C11961FF04" author="Sousa" box="[432,637,223,248]" pageId="13" pageNumber="264" refString="Sousa, F. D. R., Elmoor-Loureiro, L. M. A. &amp; Santos, S. (2015) Alona kaingang (Crustacea, Cladocera, Aloninae): a new species of the pulchella group, with identification key to Neotropical species. Zoological Studies, 54, 1 - 12. http: // dx. doi. org / 10.1186 / s 40555 - 015 - 0128 - 5" type="journal article" year="2015">
Sousa 
<emphasis id="38BE1C767771A17060D2B7C0192BFF04" box="[509,567,223,248]" italics="true" pageId="13" pageNumber="264">et al.</emphasis>
2015
</bibRefCitation>
)
</taxonomicName>
. In 
<emphasis id="38BE1C767771A170639EB7C11858FF04" box="[689,836,223,248]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A170639EB7C1185CFF04" box="[689,832,223,248]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="kaingang">O. kaingang</taxonomicName>
,
</emphasis>
these teeth are short. Shorter teeth and a distal right angle are also found in 
<taxonomicName id="CDCABBE77771A170608DB624186BFEE0" authority="(Megard, 1967) (Sinev 2009)" authorityName="(Megard, 1967) (Sinev" authorityYear="2009" box="[418,887,260,285]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="setulosa">
<emphasis id="38BE1C767771A170608DB624193DFEE1" box="[418,545,260,285]" italics="true" pageId="13" pageNumber="264">O. setulosa</emphasis>
(Megard, 1967) (
<bibRefCitation id="6E5BBD957771A17063C6B625186CFEE0" author="Sinev" box="[745,880,260,285]" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2009) Notes on morphology and taxonomic status of some North American species of the genus Alona Baird, 1843 (Cladocera: Anomopoda: Chydoridae). Fundamental and Applied Limnology - Archiv fur Hydrobiologie, 175, 59 - 77. http: // dx. doi. org / 10.1127 / 1863 - 9135 / 2009 / 0175 - 0059" type="journal article" year="2009">Sinev 2009</bibRefCitation>
)
</taxonomicName>
. Both 
<taxonomicName id="CDCABBE77771A17062EEB6241F51FEE1" box="[961,1101,260,285]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C767771A17062EEB6241F51FEE1" box="[961,1101,260,285]" italics="true" pageId="13" pageNumber="264">O. kaingang</emphasis>
</taxonomicName>
and 
<taxonomicName id="CDCABBE77771A17065AAB6241E19FEE1" box="[1157,1285,260,285]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="setulosa">
<emphasis id="38BE1C767771A17065AAB6241E19FEE1" box="[1157,1285,260,285]" italics="true" pageId="13" pageNumber="264">O. setulosa</emphasis>
</taxonomicName>
have a much shorter, more compressed postabdomen than 
<taxonomicName id="CDCABBE77771A17063BDB609181FFEBC" box="[658,771,296,320]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A17063BDB609181FFEBC" box="[658,771,296,320]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A1706224B6061878FEC3" box="[779,868,295,320]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A1706224B6061841FEBC" bold="true" box="[779,861,295,320]" pageId="13" pageNumber="264">sp. nov</emphasis>
.
</taxonomicNameLabel>
Especially the postabdomen shape in 
<taxonomicName id="CDCABBE77771A170643EB6091E80FEBC" box="[1297,1436,295,320]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C767771A170643EB6091E80FEBC" box="[1297,1436,295,320]" italics="true" pageId="13" pageNumber="264">O. kaingang</emphasis>
</taxonomicName>
is much more compact than in 
<taxonomicName id="CDCABBE77771A17060DBB66C1979FE98" box="[500,613,333,356]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A17060DBB66C1979FE98" box="[500,613,333,356]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A1706342B66D19DBFE99" box="[621,711,332,357]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A1706342B66D19DBFE99" bold="true" box="[621,711,332,357]" pageId="13" pageNumber="264">sp. nov.</emphasis>
</taxonomicNameLabel>
and the first endopod seta is shorter. The postabdomen shape of 
<taxonomicName id="CDCABBE77771A17061B8B6511A3DFE74" box="[151,289,367,392]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="altiplana">
<emphasis id="38BE1C767771A17061B8B6511A3DFE74" box="[151,289,367,392]" italics="true" pageId="13" pageNumber="264">O. altiplana</emphasis>
</taxonomicName>
shows a remarkable similarity to that of 
<taxonomicName id="CDCABBE77771A170622CB651186BFE74" box="[771,887,368,392]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A170622CB651186BFE74" box="[771,887,368,392]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A17062ADB64E18C2FE74" box="[898,990,367,392]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A17062ADB64E18C2FE74" bold="true" box="[898,990,367,392]" pageId="13" pageNumber="264">sp. nov.</emphasis>
</taxonomicNameLabel>
, including a deep preanal portion (see Kotov 
<emphasis id="38BE1C767771A17061CBB6B41A02FE51" box="[228,286,404,429]" italics="true" pageId="13" pageNumber="264">et al.</emphasis>
2010: Fig. 21A). However, the marginal denticles (long teeth in 
<taxonomicName id="CDCABBE77771A17062D3B6B41F98FE51" box="[1020,1156,404,429]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="altiplana">
<emphasis id="38BE1C767771A17062D3B6B41F98FE51" box="[1020,1156,404,429]" italics="true" pageId="13" pageNumber="264">O. altiplana</emphasis>
</taxonomicName>
) and the limb characters differ quite strongly (e.g., relative exopodite setae lengths of third and fourth limbs are completely different) between both species (compare with Kotov 
<emphasis id="38BE1C767771A17063ADB6FC19A7FE09" box="[642,699,476,501]" italics="true" pageId="13" pageNumber="264">et al.</emphasis>
2010).
</paragraph>
<paragraph id="0A75C0647771A17061E8B5211E2EFBAB" blockId="13.[151,1436,151,1653]" pageId="13" pageNumber="264">
In the limbs, the third limb (P3) exopodite is perhaps most informative of all limbs in 
<taxonomicName id="CDCABBE77771A170658EB6DE1E1EFDE4" box="[1185,1282,511,536]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767771A170658EB6DE1E1EFDE4" box="[1185,1282,511,536]" italics="true" pageId="13" pageNumber="264">Ovalona</emphasis>
</taxonomicName>
. Similarity is clear in the P3 exopodite of most species of the 
<taxonomicName id="CDCABBE77771A1706397B504185FFDC1" box="[696,835,548,573]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767771A1706397B504185FFDC1" box="[696,835,548,573]" italics="true" pageId="13" pageNumber="264">O. pulchella</emphasis>
</taxonomicName>
-group, and with 
<taxonomicName id="CDCABBE77771A1706529B5041F9AFDC1" box="[1030,1158,548,573]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="setulosa">
<emphasis id="38BE1C767771A1706529B5041F9AFDC1" box="[1030,1158,548,573]" italics="true" pageId="13" pageNumber="264">O. setulosa</emphasis>
</taxonomicName>
and 
<taxonomicName id="CDCABBE77771A1706592B5041E54FDC1" box="[1213,1352,548,573]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="kaingang">
<emphasis id="38BE1C767771A1706592B5041E54FDC1" box="[1213,1352,548,573]" italics="true" pageId="13" pageNumber="264">O. kaingang</emphasis>
</taxonomicName>
, where the sixth seta (counted from the epipodite towards the endopodite) has a modified setulation and the length of this seta is half the size of the third (longest) seta, in contrast to 
<taxonomicName id="CDCABBE77771A1706206B54C1880FD79" box="[809,924,620,645]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="38BE1C767771A1706206B54C1880FD79" box="[809,924,620,645]" italics="true" pageId="13" pageNumber="264">O. archeri</emphasis>
</taxonomicName>
(
<bibRefCitation id="6E5BBD957771A1706285B54D1F26FD79" author="Sinev" box="[938,1082,620,645]" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2002 b) Redescription of Australian cladocera Alona archeri Sars, 1888 (Branchiopoda: Anomopoda: Chydoridae). Arthropoda Selecta, 11 (4), 247 - 254." type="journal article" year="2002" yearSuffix="b">Sinev 2002b</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957771A170656AB54D1F9CFD78" author="Sinev" box="[1093,1152,620,644]" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2009) Notes on morphology and taxonomic status of some North American species of the genus Alona Baird, 1843 (Cladocera: Anomopoda: Chydoridae). Fundamental and Applied Limnology - Archiv fur Hydrobiologie, 175, 59 - 77. http: // dx. doi. org / 10.1127 / 1863 - 9135 / 2009 / 0175 - 0059" type="journal article" year="2009">2009</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957771A17065A5B54D1E57FD79" author="Sousa" box="[1162,1355,620,645]" pageId="13" pageNumber="264" refString="Sousa, F. D. R., Elmoor-Loureiro, L. M. A. &amp; Santos, S. (2015) Alona kaingang (Crustacea, Cladocera, Aloninae): a new species of the pulchella group, with identification key to Neotropical species. Zoological Studies, 54, 1 - 12. http: // dx. doi. org / 10.1186 / s 40555 - 015 - 0128 - 5" type="journal article" year="2015">
Sousa 
<emphasis id="38BE1C767771A17065FBB54C1E17FD79" box="[1236,1291,620,645]" italics="true" pageId="13" pageNumber="264">et al.</emphasis>
2015
</bibRefCitation>
). Also, the fourth exopodite seta in P 
<quantity id="CD326D817771A17060D8B5B11939FD54" box="[503,549,655,680]" metricMagnitude="-2" metricUnit="m" metricValue="7.62" pageId="13" pageNumber="264" unit="in" value="3.0">3 in</quantity>
<taxonomicName id="CDCABBE77771A170631FB5B119BAFD54" box="[560,678,656,680]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua">
<emphasis id="38BE1C767771A170631FB5B119BAFD54" box="[560,678,656,680]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
is bent, not straight, a feature present in most 
<taxonomicName id="CDCABBE77771A17065F7B5AE1E24FD54" box="[1240,1336,655,680]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767771A17065F7B5AE1E24FD54" box="[1240,1336,655,680]" italics="true" pageId="13" pageNumber="264">Ovalona</emphasis>
</taxonomicName>
species, including 
<emphasis id="38BE1C767771A1706028B594198AFD31" box="[263,662,692,717]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A1706028B5941A94FD31" box="[263,392,692,717]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="setulosa">O. setulosa</taxonomicName>
, 
<taxonomicName id="CDCABBE77771A17060BDB5941903FD31" box="[402,543,692,717]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pulchella">O. pulchella</taxonomicName>
, 
<taxonomicName id="CDCABBE77771A1706306B594198AFD31" box="[553,662,692,717]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="glabra">O. glabra</taxonomicName>
</emphasis>
and 
<taxonomicName id="CDCABBE77771A17063E4B5941846FD31" box="[715,858,692,717]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C767771A17063E4B5941846FD31" box="[715,858,692,717]" italics="true" pageId="13" pageNumber="264">O. cambouei</emphasis>
</taxonomicName>
, but not in 
<taxonomicName id="CDCABBE77771A17062F7B5941F57FD31" box="[984,1099,692,717]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="38BE1C767771A17062F7B5941F57FD31" box="[984,1099,692,717]" italics="true" pageId="13" pageNumber="264">O. archeri</emphasis>
</taxonomicName>
or in 
<taxonomicName id="CDCABBE77771A17065A3B5941E13FD31" box="[1164,1295,692,717]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767771A17065A3B5941E13FD31" box="[1164,1295,692,717]" italics="true" pageId="13" pageNumber="264">O. weinecki</emphasis>
</taxonomicName>
for example (
<bibRefCitation id="6E5BBD957771A17061B1B5F61A30FD0C" author="Sinev" box="[158,300,727,752]" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2001 a) Redescription of Alona glabra Sars, 1901, a South American species of the pulchella - group (Chydoridae, Anomopoda, Branchiopoda). Arthropoda Selecta, 10 (4), 273 - 280." type="journal article" year="2001" yearSuffix="a">Sinev 2001a</bibRefCitation>
– 
<bibRefCitation id="6E5BBD957771A1706014B5F61A55FD0C" author="Sinev" box="[315,329,727,752]" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2001 b) Separation of Alona cambouei Guerne &amp; Richard, 1893 from Alona pulchella King, 1853 (Branchiopoda, Anomopoda, Chydoridae). Arthropoda Selecta, 10 (1), 5 - 18." type="journal article" year="2001" yearSuffix="b">b</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957771A170607BB5F61A81FD0C" author="Sinev" box="[340,413,727,752]" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2002 b) Redescription of Australian cladocera Alona archeri Sars, 1888 (Branchiopoda: Anomopoda: Chydoridae). Arthropoda Selecta, 11 (4), 247 - 254." type="journal article" year="2002" yearSuffix="b">2002b</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957771A1706088B5F91AFEFD0C" author="Sinev" box="[423,482,728,752]" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2009) Notes on morphology and taxonomic status of some North American species of the genus Alona Baird, 1843 (Cladocera: Anomopoda: Chydoridae). Fundamental and Applied Limnology - Archiv fur Hydrobiologie, 175, 59 - 77. http: // dx. doi. org / 10.1127 / 1863 - 9135 / 2009 / 0175 - 0059" type="journal article" year="2009">2009</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957771A17060C2B5F9185AFD0C" author="Van" box="[493,838,728,752]" pageId="13" pageNumber="264" refString="Van Damme, K. &amp; Dumont, H. J. (2008 a) Further division of Alona Baird, 1843: separation and position of Coronatella Dybowski &amp; Grochowski and Ovalona gen. n. (Crustacea: Cladocera). Zootaxa, 1960, 1 - 44." type="journal article" year="2008" yearSuffix="a">Van Damme &amp; Dumont 2008a</bibRefCitation>
). The function of these modifications is unknown. On the second limb, 
<taxonomicName id="CDCABBE77771A170604FB5DC1AC8FCE8" box="[352,468,765,788]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A170604FB5DC1AC8FCE8" box="[352,468,765,788]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A17060F0B5DD1920FCE9" box="[479,572,764,789]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A17060F0B5DD1920FCE9" bold="true" box="[479,572,764,789]" pageId="13" pageNumber="264">sp. nov.</emphasis>
</taxonomicNameLabel>
retains a small seta on the exopodite, which in several species is strongly reduced or even absent, as in 
<taxonomicName id="CDCABBE77771A170632CB4011F01FCC4" authority="Van Damme &amp; Dumont 2008a" authorityName="Van Damme &amp; Dumont" authorityYear="2008" box="[515,1053,799,824]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="weinecki">
<emphasis id="38BE1C767771A170632CB4011991FCC4" box="[515,653,799,824]" italics="true" pageId="13" pageNumber="264">O. weinecki</emphasis>
(
<bibRefCitation id="6E5BBD957771A170638EB4011F09FCC4" author="Van" box="[673,1045,800,824]" pageId="13" pageNumber="264" refString="Van Damme, K. &amp; Dumont, H. J. (2008 a) Further division of Alona Baird, 1843: separation and position of Coronatella Dybowski &amp; Grochowski and Ovalona gen. n. (Crustacea: Cladocera). Zootaxa, 1960, 1 - 44." type="journal article" year="2008" yearSuffix="a">Van Damme &amp; Dumont 2008a</bibRefCitation>
)
</taxonomicName>
. 
<taxonomicName id="CDCABBE77771A1706503B4011FB8FCC4" box="[1068,1188,800,824]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A1706503B4011FB8FCC4" box="[1068,1188,800,824]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A170659FB43E1E0CFCC4" box="[1200,1296,799,824]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A170659FB43E1E0CFCC4" bold="true" box="[1200,1296,799,824]" pageId="13" pageNumber="264">sp. nov.</emphasis>
</taxonomicNameLabel>
also shares connected head pores with several species, such as 
<emphasis id="38BE1C767771A17063FBB46418C4FCA1" box="[724,984,836,861]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A17063FBB464187DFCA1" box="[724,865,836,861]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pulchella">O. pulchella</taxonomicName>
, 
<taxonomicName id="CDCABBE77771A1706243B46418C4FCA1" box="[876,984,836,861]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="glabra">O. glabra</taxonomicName>
</emphasis>
, 
<emphasis id="38BE1C767771A17062C9B4641E19FCA1" box="[998,1285,836,861]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A17062C9B4641F6CFCA1" box="[998,1136,836,861]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="altiplana">O. altiplana</taxonomicName>
, 
<taxonomicName id="CDCABBE77771A1706554B4641E19FCA1" box="[1147,1285,836,861]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="kaingang">O. kaingang</taxonomicName>
</emphasis>
(
<bibRefCitation id="6E5BBD957771A170643BB4651BF0FC7C" author="Sinev" pageId="13" pageNumber="264" refString="Sinev, A. Y. (2015) Revision of the pulchella- group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044, 451 - 492. http: // dx. doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">
Sinev 2015; 
<tableCitation id="4748F5DF7771A17061B8B4461BF0FC7C" box="[151,236,871,896]" captionStart="TABLE 1" captionStartId="10.[151,239,152,175]" captionText="TABLE 1. Simplified character similarity matrix of Ovalona Van Damme &amp; Dumont, 2008 showing 12 characters across 17 species (adult female morphology), ordered by number of potential homologies with O. pascua sp. nov. (grey shading). 1. Head pore connection: present (grey), interrupted / absent (blank), intermediate (light grey); 2. Headshield notches: absent or one (grey), present (blank); 3. Labral keel: no setules (grey), setules (blank); 4. Antennal seta on first endopod segment: long, one third up to half of its length or more over last segment (grey), short, just reaching over last segment, less than one third of its length (blank); 5. P 2 exopodite seta: present (grey), absent (blank), intermediate / reduced (light grey); 6. P 3 exopodite setae arrangement with bent 4 th seta: present (grey), straight (blank), intermediate (light grey); 7. P 4 exopodite setae length fourth versus sixth seta: fourth seta shorter than sixth (grey), fourth and sixt of the same length (blank), fourth longer than sixth (light grey); 8. P 4 flaming torch setae, distal portion: developed, present (grey), reduced or absent (blank); 9. Postabdomen length: 2 – 2.5 times as long as wide (grey), elongate, more than 2. 5 times as long as wide (blank); 10. Postabdominal distal angle: present, sharp / angular (grey), rounded, no clear angle (blank); 11. Postabdominal distal angle II: not strongly protruding (grey), strongly protruding (blank), intermediate (light grey); 12. Postabdomen, postanal marginal denticles (not the distalmost 3 – 4 larger teeth): groups of three short, similar, broad teeth, distalmost just longer than proximal teeth in the group (grey); long distal teeth per group, sometimes only a single long tooth, accompanied by small (less than half the size of the distal tooth) proximal denticles (blank); short conical teeth with small denticles (light grey). Abbreviations for taxa and source of character states: agua, O. aguascalientensis (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); alti, O. altiplana (Kotov, Sinev &amp; Berrios, 2010) (Kotov et al. 2010); anam, O. anamariae (Sinev &amp; Silva-Briano, 2002) (Sinev &amp; Silva-Briano 2002); anas, O. anastasia (Sinev, Alonso, Miracle &amp; Sahuquillo, 2012) (Sinev et al. 2012); arch, O. archeri (Sars, 1888) (Sinev 2002 b); azor, O. azorica (Frenzel &amp; Alonso, 1988) (Sinev et al. 2012); brom, O. bromelicola (Smirnov, 1988) (Sinev 2002 a); camb, O. cambouei (de Guerne &amp; Richard, 1893) (Sinev 2001 b, 2015); cape, O. capensis (Rühe, 1914) (Van Damme et al. 2013); glab, O. glabra (Sars, 1901) (Sinev 2001 a); kain, O. kaingang (Sousa, Elmoor-Loureiro &amp; Santos, 2015) (Sousa et al. 2015); nigr, O. nigra (Smirnov, 1996) (Kotov et al. 2010); nura, O. nuragica (Margaritora, 1971) (Sinev 2015); pasc, Ovalona pascua sp. nov. (this study); pulc, O. pulchella (King, 1853) (Sinev 2001 b); setu, O. setulosa (Megard, 1967) (Sinev 2009); wein, O. weinecki (Studer, 1878) (Frey 1988, Van Damme &amp; Dumont 2008 a); O. karelica (Stenroos, 1897) and males not included (data deficient). Distribution, abbreviations after Forró et al. (2008). Asterisk indicates local endemics." pageId="13" pageNumber="264">Table 1</tableCitation>
</bibRefCitation>
). Many species in the genus have separate pores, a homoplasy in 
<taxonomicName id="CDCABBE77771A17062D5B4491E3EFC7C" authority="Smirnov, 1996" authorityName="Smirnov" authorityYear="1996" box="[1018,1314,871,896]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="nigra">
<emphasis id="38BE1C767771A17062D5B4491F40FC7C" box="[1018,1116,872,896]" italics="true" pageId="13" pageNumber="264">O. nigra</emphasis>
(Smirnov, 1996)
</taxonomicName>
and in 
<taxonomicName id="CDCABBE77771A17064AEB4491A18FC59" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C767771A17064AEB4491A18FC59" italics="true" pageId="13" pageNumber="264">O. cambouei</emphasis>
</taxonomicName>
for example. The unrevised taxon 
<taxonomicName id="CDCABBE77771A17063BDB4AD1E3FFC58" authority="Ekman, 1900 (Van Damme et al. 2010)" authorityName="Ekman, 1900 (Van Damme et al." authorityYear="2010" box="[658,1315,908,933]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="patagonica">
<emphasis id="38BE1C767771A17063BDB4AD1847FC58" box="[658,859,908,933]" italics="true" pageId="13" pageNumber="264">Alona patagonica</emphasis>
Ekman, 1900 (
<bibRefCitation id="6E5BBD957771A1706525B4AD1E00FC58" author="Van" box="[1034,1308,908,933]" pageId="13" pageNumber="264" refString="Van Damme, K., Kotov, A. A. &amp; Dumont, H. J. (2010) A checklist of names in Alona Baird 1843 (Crustacea: Cladocera: Chydoridae) and their current status: an analysis of the taxonomy of a lump genus. Zootaxa, 2330, 1 - 63." type="journal article" year="2010">
Van Damme 
<emphasis id="38BE1C767771A170658FB4AC1FC6FC59" box="[1184,1242,908,933]" italics="true" pageId="13" pageNumber="264">et al.</emphasis>
2010
</bibRefCitation>
)
</taxonomicName>
(
<emphasis id="38BE1C767771A170641BB4AD1E80FC59" box="[1332,1436,908,933]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A170641BB4AD1E8BFC59" box="[1332,1431,908,933]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">Ovalona</taxonomicName>
,
</emphasis>
not 
<taxonomicName id="CDCABBE77771A17061EDB48E1A19FC34" box="[194,261,943,968]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767771A17061EDB48E1A19FC34" box="[194,261,943,968]" italics="true" pageId="13" pageNumber="264">Alona</emphasis>
</taxonomicName>
) from the collection of Daday (as 
<taxonomicName id="CDCABBE77771A17063A6B48E185CFC34" box="[649,832,943,968]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C767771A17063A6B48E185CFC34" box="[649,832,943,968]" italics="true" pageId="13" pageNumber="264">Alona cambouei</emphasis>
</taxonomicName>
from Patagonia) was studied here as well. Specimens are in a very bad state (hence no figures). It was only possible to investigate some features. The postabdomen has a short angular shape, quite compact (two times as long as wide), and has long, singular marginal denticles (not groups as in 
<taxonomicName id="CDCABBE77771A1706008B33C1A84FBC8" box="[295,408,1053,1076]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A1706008B33C1A84FBC8" box="[295,408,1053,1076]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A170608EB33D1AE4FBC8" box="[417,504,1052,1077]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A170608EB33D1AE8FBC9" bold="true" box="[417,500,1052,1077]" pageId="13" pageNumber="264">sp. nov</emphasis>
.
</taxonomicNameLabel>
), somewhat similar to 
<taxonomicName id="CDCABBE77771A17063D1B33C189AFBC9" box="[766,902,1052,1077]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="altiplana">
<emphasis id="38BE1C767771A17063D1B33C189AFBC9" box="[766,902,1052,1077]" italics="true" pageId="13" pageNumber="264">O. altiplana</emphasis>
</taxonomicName>
(but the postabdomen in 
<emphasis id="38BE1C767771A1706589B33C1E28FBC8" box="[1190,1332,1053,1076]" italics="true" pageId="13" pageNumber="264">
“ 
<taxonomicName id="CDCABBE77771A1706581B33C1E28FBC8" box="[1198,1332,1053,1076]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="patagonica">patagonica</taxonomicName>
</emphasis>
” is more compact). It remains to be seen if this is a valid species, but it is clearly different from 
<taxonomicName id="CDCABBE77771A170654EB3611FCEFBA4" box="[1121,1234,1088,1112]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A170654EB3611FCEFBA4" box="[1121,1234,1088,1112]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A17065F6B31E1E2EFBAB" box="[1241,1330,1087,1112]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A17065F6B31E1E37FBA4" bold="true" box="[1241,1323,1087,1112]" pageId="13" pageNumber="264">sp. nov</emphasis>
.
</taxonomicNameLabel>
</paragraph>
<paragraph id="0A75C0647771A17061E8B34519DDFA19" blockId="13.[151,1436,151,1653]" pageId="13" pageNumber="264">
Other unrevised records include “ 
<taxonomicName id="CDCABBE77771A170637EB3451817FB81" box="[593,779,1124,1149]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="38BE1C767771A170637EB3451817FB81" box="[593,779,1124,1149]" italics="true" pageId="13" pageNumber="264">Alona cambouei</emphasis>
</taxonomicName>
” from 
<collectingRegion id="C80E0E867771A170624BB34518A9FB81" box="[868,949,1124,1149]" country="United States of America" name="Hawaii" pageId="13" pageNumber="264">Hawaii</collectingRegion>
(
<bibRefCitation id="6E5BBD957771A17062E7B3451FA7FB80" author="Eldredge" box="[968,1211,1124,1149]" pageId="13" pageNumber="264" refString="Eldredge, L. G. &amp; Miller, S. E. (1997) Numbers of Hawaiian Species: Supplement 2, Including a Review of Freshwater Invertebrates. Records of the Hawaii Biological Survey for 1996. Bishop Museum Occasional Papers, 48, 3 - 22." type="journal article" year="1997">
Eldredge 
<emphasis id="38BE1C767771A1706516B3441F69FB81" box="[1081,1141,1124,1149]" italics="true" pageId="13" pageNumber="264">et al.</emphasis>
1997
</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957771A17065E4B3451E41FB80" author="Brehm" box="[1227,1373,1124,1149]" pageId="13" pageNumber="264" refString="Brehm, V. (1937) Notizen sur Susswasserfauna der Hawaii-Inseln. [Mitteilung XXIII de Wallacea-Expedition Woltereck, 1931 - 1932.] Int. Rev. Ges. Hydrobiol. Hydrogeogr., 34, 331 - 36. http: // dx. doi. org / 10.1002 / iroh. 19370340118" type="journal article" year="1937">Brehm 1937</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957771A1706443B3451BCEFB5C" author="Sars" pageId="13" pageNumber="264" refString="Sars, G. O. (1904) Pacifischen Plankton-Crustaceen. Zoologische Jahrbuecher Systematik, 14, 629 - 646." type="journal article" year="1904">Sars 1904</bibRefCitation>
, 
<bibRefCitation id="6E5BBD957771A17061CEB3A91A78FB5C" author="Ueno" box="[225,356,1159,1184]" pageId="13" pageNumber="264" refString="Ueno, M. (1936) Cladocera of Mauna Kea, Hawaii. Bernice P. Bishop Museum, Occasional Papers, 12 (11), 3 - 9." type="journal article" year="1936">Uéno 1936</bibRefCitation>
). These animals also differ from 
<taxonomicName id="CDCABBE77771A17063C3B3A9187DFB5C" box="[748,865,1160,1184]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A17063C3B3A9187DFB5C" box="[748,865,1160,1184]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A1706243B3A618D5FB5C" box="[876,969,1159,1184]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A1706243B3A618D5FB5C" bold="true" box="[876,969,1159,1184]" pageId="13" pageNumber="264">sp. nov.</emphasis>
</taxonomicNameLabel>
in postabdomen. The drawing by 
<bibRefCitation id="6E5BBD957771A1706470B3A91BFDFB39" author="Ueno" pageId="13" pageNumber="264" refString="Ueno, M. (1936) Cladocera of Mauna Kea, Hawaii. Bernice P. Bishop Museum, Occasional Papers, 12 (11), 3 - 9." type="journal article" year="1936">Uéno (1936)</bibRefCitation>
of a female postabdomen from Mauna Kea, 
<collectingRegion id="C80E0E867771A17063CBB38D1824FB39" box="[740,824,1196,1221]" country="United States of America" name="Hawaii" pageId="13" pageNumber="264">Hawaii</collectingRegion>
, shows an 
<taxonomicName id="CDCABBE77771A1706299B38D1F0AFB39" box="[950,1046,1196,1221]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767771A1706299B38D1F0AFB39" box="[950,1046,1196,1221]" italics="true" pageId="13" pageNumber="264">Ovalona</emphasis>
</taxonomicName>
with a compact postabdomen and very long, slender marginal denticles as well, again different from 
<taxonomicName id="CDCABBE77771A17062A0B3F11F1EFB14" box="[911,1026,1232,1256]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A17062A0B3F11F1EFB14" box="[911,1026,1232,1256]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A1706524B3EE1F79FB14" box="[1035,1125,1231,1256]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A1706524B3EE1F42FB14" bold="true" box="[1035,1118,1231,1256]" pageId="13" pageNumber="264">sp. nov</emphasis>
.
</taxonomicNameLabel>
The 
<collectingRegion id="C80E0E867771A170658DB3EE1FEFFB14" box="[1186,1267,1231,1256]" country="United States of America" name="Hawaii" pageId="13" pageNumber="264">Hawaii</collectingRegion>
populations in 
<bibRefCitation id="6E5BBD957771A17061B8B3D51A37FAF1" author="Ueno" box="[151,299,1268,1293]" pageId="13" pageNumber="264" refString="Ueno, M. (1936) Cladocera of Mauna Kea, Hawaii. Bernice P. Bishop Museum, Occasional Papers, 12 (11), 3 - 9." type="journal article" year="1936">Uéno (1936)</bibRefCitation>
seem to have a straight dorsodistal angle on the postabdomen, not protruding as in 
<taxonomicName id="CDCABBE77771A170640CB3D41E89FAF1" box="[1315,1429,1268,1293]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="38BE1C767771A170640CB3D41E89FAF1" box="[1315,1429,1268,1293]" italics="true" pageId="13" pageNumber="264">O. glabra</emphasis>
</taxonomicName>
. Therefore, in addition to assigned and known 
<taxonomicName id="CDCABBE77771A1706388B236181BFACC" box="[679,775,1303,1328]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767771A1706388B236181BFACC" box="[679,775,1303,1328]" italics="true" pageId="13" pageNumber="264">Ovalona</emphasis>
</taxonomicName>
populations, the lesser studied 
<taxonomicName id="CDCABBE77771A170655EB2361FCDFACC" box="[1137,1233,1303,1328]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767771A170655EB2361FCDFACC" box="[1137,1233,1303,1328]" italics="true" pageId="13" pageNumber="264">Ovalona</emphasis>
</taxonomicName>
from 
<collectingRegion id="C80E0E867771A1706435B2361E77FACC" box="[1306,1387,1303,1328]" country="United States of America" name="Hawaii" pageId="13" pageNumber="264">Hawaii</collectingRegion>
and from Patagonia, are also different in morphology from the Easter 
<collectingCountry id="72DD80F47771A17062EBB21D1F14FAA9" box="[964,1032,1340,1365]" name="Iceland" pageId="13" pageNumber="264">Island</collectingCountry>
taxon. These populations remain unrevised. Several other species with a rather compact postabdomen, still housed in 
<taxonomicName id="CDCABBE77771A170655EB27E1BC7FA60" authority="Van Damme et al. 2010" authorityName="Van Damme et al." authorityYear="2010" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">
<emphasis id="38BE1C767771A170655EB27E1FA8FA84" box="[1137,1204,1375,1400]" italics="true" pageId="13" pageNumber="264">Alona</emphasis>
(
<bibRefCitation id="6E5BBD957771A17065EAB2411BCFFA60" author="Van" pageId="13" pageNumber="264" refString="Van Damme, K., Kotov, A. A. &amp; Dumont, H. J. (2010) A checklist of names in Alona Baird 1843 (Crustacea: Cladocera: Chydoridae) and their current status: an analysis of the taxonomy of a lump genus. Zootaxa, 2330, 1 - 63." type="journal article" year="2010">
Van Damme 
<emphasis id="38BE1C767771A170644FB2401E80FA84" box="[1376,1436,1375,1400]" italics="true" pageId="13" pageNumber="264">et al.</emphasis>
2010
</bibRefCitation>
)
</taxonomicName>
, are also part of 
<emphasis id="38BE1C767771A170608EB2A51915FA61" box="[417,521,1412,1437]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A170608EB2A51918FA61" box="[417,516,1412,1437]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="genus">Ovalona</taxonomicName>
,
</emphasis>
such as 
<taxonomicName id="CDCABBE77771A170635FB2A51F27FA60" authority="Chengalath &amp; Hann, 1981" authorityName="Chengalath &amp; Hann" authorityYear="1981" box="[624,1083,1412,1437]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="lapidicola">
<emphasis id="38BE1C767771A170635FB2A5181FFA61" box="[624,771,1412,1437]" italics="true" pageId="13" pageNumber="264">A. lapidicola</emphasis>
Chengalath &amp; Hann, 1981
</taxonomicName>
and 
<taxonomicName id="CDCABBE77771A1706558B2A51A00FA3C" authority="Chengalath &amp; Hann, 1981" authorityName="Chengalath &amp; Hann" authorityYear="1981" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="borealis">
<emphasis id="38BE1C767771A1706558B2A51FE8FA61" box="[1143,1268,1412,1437]" italics="true" pageId="13" pageNumber="264">A. borealis</emphasis>
Chengalath &amp; Hann, 1981
</taxonomicName>
. These species need formal assignment and comparison, however their diagnostic morphologies do not challenge the species status of 
<taxonomicName id="CDCABBE77771A17060C0B2EC197DFA18" box="[495,609,1485,1508]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A17060C0B2EC197DFA18" box="[495,609,1485,1508]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A1706347B2ED19DDFA19" box="[616,705,1484,1509]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A1706347B2ED19DDFA19" bold="true" box="[616,705,1484,1509]" pageId="13" pageNumber="264">sp. nov.</emphasis>
</taxonomicNameLabel>
</paragraph>
<paragraph id="0A75C0647771A17061E8B2D01855F989" blockId="13.[151,1436,151,1653]" pageId="13" pageNumber="264">
In overall morphology and across all species, including limb features, 
<taxonomicName id="CDCABBE77771A17062D4B2D11F73F9F4" box="[1019,1135,1520,1544]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pascua" status="sp. nov.">
<emphasis id="38BE1C767771A17062D4B2D11F73F9F4" box="[1019,1135,1520,1544]" italics="true" pageId="13" pageNumber="264">O. pascua</emphasis>
</taxonomicName>
<taxonomicNameLabel id="238DA10D7771A1706555B2CE1FCAF9F4" box="[1146,1238,1519,1544]" pageId="13" pageNumber="264" rank="species">
<emphasis id="38BE1C767771A1706555B2CE1FCAF9F4" bold="true" box="[1146,1238,1519,1544]" pageId="13" pageNumber="264">sp. nov.</emphasis>
</taxonomicNameLabel>
seems closest to several New World species 
<emphasis id="38BE1C767771A17060FCB13419EAF9D1" box="[467,758,1556,1581]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A17060FCB134197DF9D1" box="[467,609,1556,1581]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="kaingang">O. kaingang</taxonomicName>
, 
<taxonomicName id="CDCABBE77771A1706341B13419EAF9D1" box="[622,758,1556,1581]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="altiplana">O. altiplana</taxonomicName>
</emphasis>
and 
<emphasis id="38BE1C767771A1706200B13418AAF9D1" box="[815,950,1556,1581]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A1706200B13418AEF9D1" box="[815,946,1556,1581]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="setulosa">O. setulosa</taxonomicName>
.
</emphasis>
It is not identical to 
<emphasis id="38BE1C767771A170658AB1341E2EF9D1" box="[1189,1330,1556,1581]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A170658AB1341E32F9D1" box="[1189,1326,1556,1581]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="weinecki">O. weinecki</taxonomicName>
,
</emphasis>
differing also strongly in male morphology and seems not directly related to species of the 
<taxonomicName id="CDCABBE77771A1706518B1191FDEF9AC" box="[1079,1218,1591,1616]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="38BE1C767771A1706518B1191FDEF9AC" box="[1079,1218,1591,1616]" italics="true" pageId="13" pageNumber="264">O. pulchella</emphasis>
</taxonomicName>
complex, although the male postabdomen shows similarities to that in 
<emphasis id="38BE1C767771A17063FAB17C1855F989" box="[725,841,1628,1653]" italics="true" pageId="13" pageNumber="264">
<taxonomicName id="CDCABBE77771A17063FAB17C1859F989" box="[725,837,1628,1653]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="264" phylum="Arthropoda" rank="species" species="glabra">O. glabra</taxonomicName>
.
</emphasis>
</paragraph>
</subSubSection>
</treatment>
</document>