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<document id="11EF49649495C4A711E8B62919E3AB9C" ID-CLB-Dataset="27738" ID-DOI="10.11646/zootaxa.4532.4.1" ID-GBIF-Dataset="e0fdbb03-2d4a-47e5-afba-726d40feca7a" ID-ISSN="1175-5326" ID-Zenodo-Dep="2615529" ID-ZooBank="F69AFA65-2777-499D-82D1-1EC7327A798B" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1553788543069" checkinUser="plazi" docAuthor="Garibian, Petr G., Neretina, Anna N., Klimovsky, Alexey I. &amp; Kotov, Alexey A." docDate="2018" docId="D92B87B60B6EFFF2B2F7F9D9FB804789" docLanguage="en" docName="zootaxa.4532.4.1.pdf" docOrigin="Zootaxa 4532 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Pleuroxus yakutensis Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov 2018, sp. nov." docType="treatment" docVersion="7" lastPageNumber="475" masterDocId="2512FFCE0B62FFEAB260FF82FF994646" masterDocTitle="A new case of West-East differentiation of the freshwater fauna in Northern Eurasia: the Pleuroxus trigonellus species group (Crustacea: Cladocera: Chydoridae)" masterLastPageNumber="482" masterPageNumber="451" pageNumber="463" updateTime="1698715114289" updateUser="ExternalLinkService">
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<mods:title id="2BA76FED56A40AEC7AD7E7A7A12B8FE4">A new case of West-East differentiation of the freshwater fauna in Northern Eurasia: the Pleuroxus trigonellus species group (Crustacea: Cladocera: Chydoridae)</mods:title>
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<mods:namePart id="DD6195157CAC7168C846303C30C642D9">Garibian, Petr G.</mods:namePart>
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<mods:namePart id="48EB444045F0B637A31CC5F994007CE4">Neretina, Anna N.</mods:namePart>
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<mods:namePart id="33DA116CAAC3D51B68DD1575518726B4">Klimovsky, Alexey I.</mods:namePart>
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<mods:namePart id="82576C575E49FCAA80862EFB0C2DFE4D">Kotov, Alexey A.</mods:namePart>
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<treatment id="D92B87B60B6EFFF2B2F7F9D9FB804789" ID-DOI="http://doi.org/10.5281/zenodo.5950054" ID-GBIF-Taxon="154521431" ID-Zenodo-Dep="5950054" LSID="urn:lsid:plazi:treatment:D92B87B60B6EFFF2B2F7F9D9FB804789" httpUri="http://treatment.plazi.org/id/D92B87B60B6EFFF2B2F7F9D9FB804789" lastPageId="24" lastPageNumber="475" pageId="12" pageNumber="463">
<subSubSection id="1998652B0B6EFFE6B2F7F9D9FE674030" box="[151,510,1627,1654]" pageId="12" pageNumber="463" type="nomenclature">
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<heading id="0A7581CC0B6EFFE6B2F7F9D9FE674030" bold="true" box="[151,510,1627,1654]" fontSize="11" level="1" pageId="12" pageNumber="463" reason="1">
<emphasis id="63F6EAB20B6EFFE6B2F7F9D9FE674030" bold="true" box="[151,510,1627,1654]" pageId="12" pageNumber="463">
<taxonomicName id="96824D230B6EFFE6B2F7F9D9FE004033" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[151,409,1627,1653]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="463" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B6EFFE6B2F7F9D9FE004033" bold="true" box="[151,409,1627,1653]" italics="true" pageId="12" pageNumber="463">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B6EFFE6B3C0F9DEFE674030" box="[416,510,1628,1654]" pageId="12" pageNumber="463" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
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<subSubSection id="1998652B0B6EFFE6B2F7F9FCFEB940D1" box="[151,288,1662,1687]" pageId="12" pageNumber="463" type="description">
<paragraph id="513D36A00B6EFFE6B2F7F9FCFEB940D1" blockId="12.[151,510,1627,1687]" box="[151,288,1662,1687]" pageId="12" pageNumber="463">
(
<figureCitation id="C9B92A250B6EFFE6B2FFF9FCFE8140D1" box="[159,280,1662,1687]" captionStart-0="FIGURE 8" captionStart-1="FIGURE 9" captionStart-10="FIGURE 18" captionStart-11="FIGURE 19" captionStart-12="FIGURE 20" captionStart-2="FIGURE 10" captionStart-3="FIGURE 11" captionStart-4="FIGURE 12" captionStart-5="FIGURE 13" captionStart-6="FIGURE 14" captionStart-7="FIGURE 15" captionStart-8="FIGURE 16" captionStart-9="FIGURE 17" captionStartId-0="11.[151,250,1914,1936]" captionStartId-1="15.[151,250,1878,1900]" captionStartId-10="24.[151,250,1910,1932]" captionStartId-11="25.[151,250,1927,1949]" captionStartId-12="26.[151,250,1901,1923]" captionStartId-2="16.[151,250,1858,1880]" captionStartId-3="17.[151,250,1896,1918]" captionStartId-4="18.[151,250,784,806]" captionStartId-5="19.[151,250,1876,1898]" captionStartId-6="20.[151,250,1904,1926]" captionStartId-7="21.[151,250,1872,1894]" captionStartId-8="22.[151,250,1879,1901]" captionStartId-9="23.[151,250,1565,1587]" captionTargetBox-0="[182,1389,210,1877]" captionTargetBox-1="[179,1420,481,1857]" captionTargetBox-10="[158,1429,512,1891]" captionTargetBox-11="[158,1429,465,1892]" captionTargetBox-12="[209,1383,200,1874]" captionTargetBox-2="[239,1345,199,1831]" captionTargetBox-3="[228,1368,199,1879]" captionTargetBox-4="[159,1428,222,714]" captionTargetBox-5="[158,1429,515,1823]" captionTargetBox-6="[155,1417,212,1879]" captionTargetBox-7="[158,1429,200,1843]" captionTargetBox-8="[232,1359,199,1862]" captionTargetBox-9="[170,1423,204,1540]" captionTargetId-0="figure@11.[174,1413,193,1902]" captionTargetId-1="figure@15.[170,1420,481,1868]" captionTargetId-10="figure@24.[151,1436,504,1898]" captionTargetId-11="figure@25.[151,1436,457,1901]" captionTargetId-12="figure@26.[202,1389,193,1882]" captionTargetId-2="figure@16.[233,1351,193,1837]" captionTargetId-3="figure@17.[222,1374,193,1885]" captionTargetId-4="figure@18.[151,1436,215,724]" captionTargetId-5="figure@19.[151,1436,508,1831]" captionTargetId-6="figure@20.[151,1436,193,1883]" captionTargetId-7="figure@21.[151,1436,193,1851]" captionTargetId-8="figure@22.[226,1365,193,1868]" captionTargetId-9="figure@23.[160,1432,190,1554]" captionTargetPageId-0="11" captionTargetPageId-1="15" captionTargetPageId-10="24" captionTargetPageId-11="25" captionTargetPageId-12="26" captionTargetPageId-2="16" captionTargetPageId-3="17" captionTargetPageId-4="18" captionTargetPageId-5="19" captionTargetPageId-6="20" captionTargetPageId-7="21" captionTargetPageId-8="22" captionTargetPageId-9="23" captionText-0="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." captionText-1="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." captionText-10="FIGURE 18. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B, Its lateroventral view. C, Head, lateral view. D–E, Its lateroventral view. F, Antenna I. Scale bars 0.1 mm for A–B, 0.05 mm for C– F." captionText-11="FIGURE 19. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–E, Distal portion of postabdomen. F, Male hooks of limbs I. Scale bars 0.05 mm for A, 0.02 mm for B, D, F, 0.01 mm for C, E." captionText-12="FIGURE 20. Pleuroxus yakutensis sp. nov., juvenile male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Juvenile male, lateral view. B, Its lateroventral view. C, Its anterior view. D, Head, lateral view. E, Its lateroventral view. F, Postabdomen, lateral view. G, Postabdominal claws, anterior view. Scale bars 0.1 mm for A–E, 0.05 mm for F, 0.02 for G." captionText-2="FIGURE 10. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult parthenogenetic female, lateral view. B, Its dorsal view. C, Head shield. D–E, Head, lateral view. F, Head, lateral view, a fragment. G, Adult parthenogenetic female, ventral view. H, Head, ventral view. Scale bars 0.2 mm for A, 0.1 mm for B, D, G, 0.05 mm for C, E, H, 0.02 mm for F." captionText-3="FIGURE 11. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head, anterodorsal view. B, Ornamentation of head. C, Ornamentation of anterior portion of valve. D–E, Armature of posteroventral portion of valve. F, Armature of central portion of valve. G, Antenna II. Scale bars 0.1 mm for A, 0.05 mm for G, 0.02 mm for B–F." captionText-4="FIGURE 12. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head pores. B, Anterior head pore. Scale bars 0.02 mm for A, 0.01 mm for B." captionText-5="FIGURE 13. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Postabdomen, lateral view. B, Its distal portion. C, Postabdominal claw. D, Armature of dorsal margin of postabdomen. E, Limb I, inner view. Scale bars 0.05 mm for A, E, 0.02 mm for B–C, 0.01 mm for D." captionText-6="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." captionText-7="FIGURE 15. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Limbs I–V, outer view. B, Limbs I–II, inner view. C, Limb I. D–E, Limb II. F, Scraping setae of limb II. G, Distal portion of limb I. Scale bars 0.05 mm for A–C, E, 0.02 mm for D, G, 0.01 mm for F." captionText-8="FIGURE 16. Pleuroxus yakutensis sp. nov., parthenogenetic (A–D) and ephippial (E–H) females from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky., A, Adult parthenogenetic female, laterodorsal view. B, Its anterior view. C, Its anterolateral view. D, Head, anterolateral view. E, Ephippial female, lateral view. F, Ephippium, lateral view. G, Ornamentation and armature of posteroventral portion of valve. H, Ornamentation of posterior portion of valve. Scale bars 0.2 mm for A–C, E, 0.1 mm for D, F, 0.02 mm for G–H." captionText-9="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri-0="https://zenodo.org/record/2615545/files/figure.png" httpUri-1="https://zenodo.org/record/2615547/files/figure.png" httpUri-10="https://zenodo.org/record/2615567/files/figure.png" httpUri-11="https://zenodo.org/record/2615569/files/figure.png" httpUri-12="https://zenodo.org/record/2615571/files/figure.png" httpUri-2="https://zenodo.org/record/2615551/files/figure.png" httpUri-3="https://zenodo.org/record/2615553/files/figure.png" httpUri-4="https://zenodo.org/record/2615555/files/figure.png" httpUri-5="https://zenodo.org/record/2615557/files/figure.png" httpUri-6="https://zenodo.org/record/2615559/files/figure.png" httpUri-7="https://zenodo.org/record/2615561/files/figure.png" httpUri-8="https://zenodo.org/record/2615563/files/figure.png" httpUri-9="https://zenodo.org/record/2615565/files/figure.png" pageId="12" pageNumber="463">Figs. 8–20</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="1998652B0B6EFFE6B2F7F944FEBD40BD" pageId="12" pageNumber="463" type="reference_group">
<paragraph id="513D36A00B6EFFE6B2F7F944FEBD40BD" blockId="12.[151,1437,1734,1787]" pageId="12" pageNumber="463">
<taxonomicName id="96824D230B6EFFE6B2F7F944FDEE409A" ID-CoL="77RHV" authority="O. F. Muller in Du (1973)" authorityName="O. F. Muller in Du" authorityYear="1973" box="[151,631,1734,1756]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="12" pageNumber="463" phylum="Arthropoda" rank="species" species="trigonellus">
<emphasis id="63F6EAB20B6EFFE6B2F7F944FEE9409A" box="[151,368,1734,1756]" italics="true" pageId="12" pageNumber="463">Pleuroxus trigonellus</emphasis>
O.F. Müller in
<bibRefCitation id="35134B510B6EFFE6B06BF945FDEE409A" author="Du, N. - S." box="[523,631,1734,1756]" pageId="12" pageNumber="463" refId="ref10821" refString="Du, N. - S. (1973) Cladocera of China. Science Press, Academia Sinica, Peking, 93 pp. [in Chinese]" type="book" year="1973">Du (1973)</bibRefCitation>
</taxonomicName>
: p. 78, fig. 84;
<bibRefCitation id="35134B510B6EFFE6B16CF944FC78409A" author="Chiang, S. C. &amp; Du, N. S." box="[780,993,1734,1756]" pageId="12" pageNumber="463" refId="ref10764" refString="Chiang, S. C. &amp; Du, N. S. (1979) Freshwater Cladocera. Fauna Sinica. Crustacea. Science Press, Academia Sinica, Peking, 297 pp." type="book" year="1979">Chiang &amp; Du (1979)</bibRefCitation>
: p. 247–248, fig. 172;
<bibRefCitation id="35134B510B6EFFE6B6A2F944FAFE409A" author="Smirnov, N. N." box="[1218,1383,1734,1756]" pageId="12" pageNumber="463" refId="ref13079" refString="Smirnov, N. N. (1996) Cladocera: the Chydorinae and Sayciinae (Chydoridae) of the world. Guides to the identification of the microinvertebrates of the Continental Waters of the world. Vol. 11. SPB Academic Publishing, Amsterdam, 197 pp." type="book" year="1996">Smirnov (1996)</bibRefCitation>
: figs. 116–118.
</paragraph>
</subSubSection>
<subSubSection id="1998652B0B6EFFE6B2F7F8A5FC854123" pageId="12" pageNumber="463" type="etymology">
<paragraph id="513D36A00B6EFFE6B2F7F8A5FC854123" blockId="12.[151,1436,1831,2037]" pageId="12" pageNumber="463">
<emphasis id="63F6EAB20B6EFFE6B2F7F8A5FE874106" bold="true" box="[151,286,1831,1856]" pageId="12" pageNumber="463">Etymology.</emphasis>
This new species is named after
<collectingRegion id="9346F8420B6EFFE6B0D0F8A5FD6C4106" box="[688,757,1831,1856]" country="Russia" name="Sakha" pageId="12" pageNumber="463">Sakha</collectingRegion>
Autonomous Republic (Yakutia), the largest Autonomous Republic of
<collectingCountry id="299576300B6EFFE6B341F8CEFE654123" box="[289,508,1868,1893]" name="Russia" pageId="12" pageNumber="463">Russian Federation</collectingCountry>
, where it was discovered.
</paragraph>
</subSubSection>
<subSubSection id="1998652B0B6EFFE7B2A7F8EDFCE54256" lastPageId="13" lastPageNumber="464" pageId="12" pageNumber="463" type="materials_examined">
<paragraph id="513D36A00B6EFFE6B2A7F8EDFCAE4197" blockId="12.[151,1436,1831,2037]" pageId="12" pageNumber="463">
<materialsCitation id="E1EA3CFD0B6EFFE6B2A7F8EDFCAA4197" ID-GBIF-Occurrence="2119297832" collectorName="A. A. Kotov &amp; A. I. Klimovsky" country="Russia" county="From" latitude="61.92249" location="Lake Malaya Chabyda" longLatPrecision="2" longitude="129.4182" municipality="Autonomous Republic" pageId="12" pageNumber="463" specimenCount="15" specimenCount-male="15" stateProvince="Sakha" typeStatus="holotype">
<emphasis id="63F6EAB20B6EFFE6B2A7F8EDFEFC41CE" bold="true" box="[199,357,1903,1928]" pageId="12" pageNumber="463">
<typeStatus id="8E3988020B6EFFE6B2A7F8EDFE9B41CE" box="[199,258,1903,1928]" pageId="12" pageNumber="463">Type</typeStatus>
locality.
</emphasis>
A small dam lake near
<location id="545D607B0B6EFFE6B010F8EDFCF741CE" LSID="urn:lsid:plazi:treatment:D92B87B60B6EFFF2B2F7F9D9FB804789:545D607B0B6EFFE6B010F8EDFCF741CE" box="[624,878,1903,1928]" country="Russia" county="From" latitude="61.92249" longLatPrecision="2" longitude="129.4182" municipality="Autonomous Republic" name="Lake Malaya Chabyda" pageId="12" pageNumber="463" stateProvince="Sakha">Lake Malaya Chabyda</location>
(
<geoCoordinate id="34B650670B6EFFE6B11DF8F2FB8841CE" box="[893,1041,1903,1928]" direction="north" orientation="latitude" pageId="12" pageNumber="463" precision="1" value="61.92249">N 61.92249°</geoCoordinate>
,
<geoCoordinate id="34B650670B6EFFE6B67CF8F2FB3441CE" box="[1052,1197,1904,1928]" direction="east" orientation="longitude" pageId="12" pageNumber="463" precision="5" value="129.4182">E 129.4182°</geoCoordinate>
),
<collectingRegion id="9346F8420B6EFFE6B6A0F8EDFA9C41CE" box="[1216,1285,1903,1928]" country="Russia" name="Sakha" pageId="12" pageNumber="463">Sakha</collectingRegion>
<collectingMunicipality id="B159ACDA0B6EFFE6B76BF8F2FF6541EB" pageId="12" pageNumber="463">Autonomous Republic</collectingMunicipality>
(Yakutia),
<collectingCountry id="299576300B6EFFE6B31DF816FE5241EB" box="[381,459,1940,1965]" name="Russia" pageId="12" pageNumber="463">Russia</collectingCountry>
.
<collectingCounty id="B85C4E2C0B6EFFE6B3B8F817FD8D41EA" box="[472,532,1941,1964]" pageId="12" pageNumber="463">From</collectingCounty>
this locality, 25 parthenogenetic females, 15 ephippial females,
<specimenCount id="4784FD290B6EFFE6B696F816FAC541EB" box="[1270,1372,1940,1965]" pageId="12" pageNumber="463" type="male">15 males</specimenCount>
were collected in 0 2.09.2010 by
<collectorName id="FC7753760B6EFFE6B3A8F83BFDD24196" box="[456,587,1977,2001]" pageId="12" pageNumber="463">A.A. Kotov</collectorName>
and
<collectorName id="FC7753760B6EFFE6B0E2F83BFCAA4197" box="[642,819,1976,2001]" pageId="12" pageNumber="463">A.I. Klimovsky</collectorName>
</materialsCitation>
.
</paragraph>
<paragraph id="513D36A00B6EFFE7B2A7F85EFB094723" blockId="12.[151,1436,1831,2037]" lastBlockId="13.[151,1437,151,2012]" lastPageId="13" lastPageNumber="464" pageId="12" pageNumber="463">
<emphasis id="63F6EAB20B6EFFE6B2A7F85EFEEE41B3" bold="true" box="[199,375,2012,2037]" pageId="12" pageNumber="463">Type material.</emphasis>
<materialsCitation id="E1EA3CFD0B6EFFE7B31FF85EFDF54692" ID-GBIF-Occurrence="2119296281" collectionCode="MGU" lastPageId="13" lastPageNumber="464" location="Lake Malaya Chabyda" pageId="12" pageNumber="463" specimenCount="1" specimenCount-male="1" stateProvince="Moscow" typeStatus="holotype">
<typeStatus id="8E3988020B6EFFE6B31FF85EFE7541B3" box="[383,492,2012,2037]" pageId="12" pageNumber="463" type="holotype">Holotype</typeStatus>
: an adult male deposited at the collection of Zoological Museum of
<collectingRegion id="9346F8420B6EFFE6B69BF85FFAC241B2" box="[1275,1371,2013,2036]" country="Russia" name="Moscow" pageId="12" pageNumber="463">Moscow</collectingRegion>
State University,
<collectionCode id="3793AE650B6FFFE7B379FF1AFEC346F6" box="[281,346,152,176]" pageId="13" pageNumber="464">MGU</collectionCode>
Ml 161. The label of
<typeStatus id="8E3988020B6FFFE7B02BFF15FD3446F6" box="[587,685,151,176]" pageId="13" pageNumber="464" type="holotype">holotype</typeStatus>
is: “
<taxonomicName id="96824D230B6FFFE7B081FF1AFC5446F6" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[737,973,152,176]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="13" pageNumber="464" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B6FFFE7B081FF1AFC5446F6" box="[737,973,152,176]" italics="true" pageId="13" pageNumber="464">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B6FFFE7B1B3FF1AFBB246E9" box="[979,1067,152,175]" pageId="13" pageNumber="464" rank="species">sp. nov.</taxonomicNameLabel>
,
<specimenCount id="4784FD290B6FFFE7B656FF1AFBC646E9" box="[1078,1119,152,176]" pageId="13" pageNumber="464" type="male">1 ♂</specimenCount>
from a small lake near
<location id="545D607B0B6FFFE7B704FF15FEC14693" LSID="urn:lsid:plazi:treatment:D92B87B60B6EFFF2B2F7F9D9FB804789:545D607B0B6FFFE7B704FF15FEC14693" name="Lake Malaya Chabyda" pageId="13" pageNumber="464" stateProvince="Moscow">Lake Malaya Chabyda</location>
, Yakutia,
<typeStatus id="8E3988020B6FFFE7B3A8FF3EFDFB4692" box="[456,610,188,212]" pageId="13" pageNumber="464" type="holotype">HOLOTYPE</typeStatus>
”
</materialsCitation>
.
<materialsCitation id="E1EA3CFD0B6FFFE7B016FF3FFB154723" ID-GBIF-Occurrence="2119297921" collectionCode="MGU" collectorName="A. A. Kotov &amp; A. I. Klimovsky &amp; Ml" latitude="61.92249" location="Lake Malaya Chabyda" longLatPrecision="2" longitude="129.4182" municipality="Ml" pageId="13" pageNumber="464" specimenCode="AAK 2018-059" specimenCount="1" stateProvince="Moscow" typeStatus="paratype">
<typeStatus id="8E3988020B6FFFE7B016FF3FFD7A4693" box="[630,739,189,213]" pageId="13" pageNumber="464" type="paratype">Paratypes</typeStatus>
from a small dam lake near
<location id="545D607B0B6FFFE7B643FF3EFABD4693" LSID="urn:lsid:plazi:treatment:D92B87B60B6EFFF2B2F7F9D9FB804789:545D607B0B6FFFE7B643FF3EFABD4693" box="[1059,1316,188,213]" latitude="61.92249" longLatPrecision="2" longitude="129.4182" municipality="Ml" name="Lake Malaya Chabyda" pageId="13" pageNumber="464" stateProvince="Moscow">Lake Malaya Chabyda</location>
, preserved in 96% ethanol: 1 undissected parthenogenetic female (
<collectionCode id="3793AE650B6FFFE7B163FF62FCDF46BE" box="[771,838,224,248]" pageId="13" pageNumber="464">MGU</collectionCode>
<collectingMunicipality id="B159ACDA0B6FFFE7B12DFF5DFCF746BE" box="[845,878,223,248]" pageId="13" pageNumber="464">Ml</collectingMunicipality>
162:
<geoCoordinate id="34B650670B6FFFE7B1CEFF62FBD846BE" box="[942,1089,223,248]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="61.92249">N 61.92249°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B62CFF62FB4246BE" box="[1100,1243,224,248]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="129.4182">E 129.4182°</geoCoordinate>
, coll. 0 2.09.2010 by
<collectorName id="FC7753760B6FFFE7B2A0FE86FED3475A" box="[192,330,260,284]" pageId="13" pageNumber="464">A.A. Kotov</collectorName>
&amp;
<collectorName id="FC7753760B6FFFE7B31AFE86FDAC475B" box="[378,565,260,285]" pageId="13" pageNumber="464">A.I. Klimovsky</collectorName>
); 5 undissected parthenogenetic females (
<collectionCode id="3793AE650B6FFFE7B644FE86FBFE475A" box="[1060,1127,260,284]" pageId="13" pageNumber="464">MGU</collectionCode>
<collectorName id="FC7753760B6FFFE7B614FE86FB0C475B" box="[1140,1173,260,285]" pageId="13" pageNumber="464">Ml</collectorName>
163:
<geoCoordinate id="34B650670B6FFFE7B681FE87FAE3475B" box="[1249,1402,260,285]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="61.92249">N 61.92249°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B7EBFE87FE974706" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="129.4182">E 129.4182°</geoCoordinate>
, coll. 0 2.09.2010 by
<collectorName id="FC7753760B6FFFE7B06AFEAAFD0B4779" box="[522,658,296,320]" pageId="13" pageNumber="464">A.A. Kotov</collectorName>
&amp;
<collectorName id="FC7753760B6FFFE7B0DFFEAAFCEE4706" box="[703,887,295,320]" pageId="13" pageNumber="464">A.I. Klimovsky</collectorName>
); 4 undissected parthenogenetic females (
<specimenCode id="01249EDB0B6FFFE7B73EFEAAFE9E4723" collectionCode="AAK" pageId="13" pageNumber="464">AAK 2018-059</specimenCode>
:
<geoCoordinate id="34B650670B6FFFE7B371FECFFE3D4723" box="[273,420,332,357]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="61.92249">N 61.92249°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B3CEFECFFDA74722" box="[430,574,332,356]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="129.4182">E 129.4182°</geoCoordinate>
, coll. 0 2.09.2010 by
<collectorName id="FC7753760B6FFFE7B149FECEFC354722" box="[809,940,332,356]" pageId="13" pageNumber="464">A.A. Kotov</collectorName>
&amp;
<collectorName id="FC7753760B6FFFE7B1B0FECEFB1D4723" box="[976,1156,332,357]" pageId="13" pageNumber="464">A.I. Klimovsky</collectorName>
)
</materialsCitation>
.
</paragraph>
<paragraph id="513D36A00B6FFFE7B2A7FEEDFCE54256" blockId="13.[151,1437,151,2012]" pageId="13" pageNumber="464">
<emphasis id="63F6EAB20B6FFFE7B2A7FEEDFE7747CE" bold="true" box="[199,494,367,392]" pageId="13" pageNumber="464">Other material studied:</emphasis>
2 parthenogenetic females from Lake Aly-Syrdah (
<geoCoordinate id="34B650670B6FFFE7B63CFEF2FB7147CE" box="[1116,1256,367,392]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="5" value="63.9331">N 63.9331°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B699FEF2FA0947CE" box="[1273,1424,368,392]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="127.4878">E 127.4878°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B06FFE16FDC547EB" box="[527,604,404,429]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll.
<date id="253C10600B6FFFE7B0CBFE16FCB047EA" box="[683,809,404,428]" pageId="13" pageNumber="464" value="2010-08-21">21.08.2010</date>
by A.A. Kotov, AAK 2011-016; 10 parthenogenetic females from Anga on Melnikov Island, Lena River (
<geoCoordinate id="34B650670B6FFFE7B093FE3AFC114796" box="[755,904,439,464]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="63.86428">N 63.86428°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B1F4FE3AFBBC4796" box="[916,1061,439,464]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="127.4509">E 127.4509°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B2F7FE5EFF7D47B3" box="[151,228,476,501]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll.
<date id="253C10600B6FFFE7B34EFE5EFE3547B2" box="[302,428,476,500]" pageId="13" pageNumber="464" value="2010-08-21">21.08.2010</date>
by A.A. Kotov, AAK 2011-019; 2 parthenogenetic females from Lake 3 on Melnikov Island, Lena River (
<geoCoordinate id="34B650670B6FFFE7B318FD82FD94445E" box="[376,525,511,536]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="63.85395">N 63.85395°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B079FD82FD33445E" box="[537,682,511,536]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="127.4678">E 127.4678°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B649FE7DFBEF445E" box="[1065,1142,511,536]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll.
<date id="253C10600B6FFFE7B6DCFD82FAA3445E" box="[1212,1338,512,536]" pageId="13" pageNumber="464" value="2010-08-22">22.08.2010</date>
by A.A. Kotov, AAK 2011-019; 2 parthenogenetic females from oxbow of Tuoluma River, Amga River basin (
<geoCoordinate id="34B650670B6FFFE7B7E7FDA6FE974426" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="61.80082">N 61.80082°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B379FDCAFE314426" box="[281,424,583,608]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="133.2925">E 133.2925°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B141FDC5FCF74426" box="[801,878,583,608]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll.
<date id="253C10600B6FFFE7B1D1FDC5FBB64426" box="[945,1071,583,608]" pageId="13" pageNumber="464" value="2010-08-26">26.08.2010</date>
by A.A. Kotov, AAK 2011-032; 1 parthenogenetic female from the lake in Usun Alass, the vicinities of Karbalah (
<geoCoordinate id="34B650670B6FFFE7B637FDEEFB7744C3" box="[1111,1262,620,645]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="62.15904">N 62.15904°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B69CFDEFFA0944C2" box="[1276,1424,620,644]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="134.2948">E 134.2948°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B39EFD0DFDD244EE" box="[510,587,655,680]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll.
<date id="253C10600B6FFFE7B0EEFD12FC9544EE" box="[654,780,656,680]" pageId="13" pageNumber="464" value="2010-08-28">28.08.2010</date>
by A.A. Kotov, AAK 2011-046; 1 parthenogenetic female from Lake 1 near Nizhnekolymskoe village (
<geoCoordinate id="34B650670B6FFFE7B0FDFD36FCBC448B" box="[669,805,692,717]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="5" value="68.5316">N 68.5316°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B152FD37FC5F448B" box="[818,966,692,717]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="160.9364">E 160.9364°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B72BFD36FA01448B" box="[1355,1432,692,717]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll. 0 8.08.2010 by A.A. Kotov, AAK M-1906; 1 parthenogenetic female from Lake 1 near Nizhnekolymskoe village (
<geoCoordinate id="34B650670B6FFFE7B293FD7EFEE04553" box="[243,377,764,789]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="5" value="68.5316">N 68.5316°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B3E5FD7FFD8F4553" box="[389,534,764,789]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="160.9364">E 160.9364°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B1F3FD7EFC794553" box="[915,992,764,789]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll. 0 8.08.2010 by A.A. Kotov, AAK M-1907; 4 parthenogenetic females from Pond 1, the vicinities of Yakutsk (
<geoCoordinate id="34B650670B6FFFE7B19CFCA2FB0B457E" box="[1020,1170,799,824]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="61.92249">N 61.92249°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B6FFFCA2FAA8457E" box="[1183,1329,800,824]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="129.4182">E 129.4182°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B3C5FCC6FE6B451B" box="[421,498,836,861]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll.
<date id="253C10600B6FFFE7B058FCC6FD2F451A" box="[568,694,836,860]" pageId="13" pageNumber="464" value="2010-08-24">24.08.2010</date>
by A.A. Kotov, AAK M-1935;
<specimenCount id="4784FD290B6FFFE7B645FCC6FB0C451B" box="[1061,1173,836,861]" pageId="13" pageNumber="464" type="juvenile">1 juvenile</specimenCount>
male from Yakutsk (
<geoCoordinate id="34B650670B6FFFE7B7E7FCC6FE9445C6" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="62.03011">N 62.03011°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B379FCEAFE3345C6" box="[281,426,871,896]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="129.7759">E 129.7759°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B148FCE5FCEF45C6" box="[808,886,871,896]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll. 0 3.09.2010 by A.A. Kotov, AAK M-1994;
<specimenCount id="4784FD290B6FFFE7B2F7FC0EFF7145E3" box="[151,232,908,933]" pageId="13" pageNumber="464" type="adult">5 adult</specimenCount>
males from the pool near Namsk-Yakutsk highway (
<geoCoordinate id="34B650670B6FFFE7B138FC0EFC6945E3" box="[856,1008,908,933]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="63.02369">N 63.02369°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B19FFC0FFB0D45E3" box="[1023,1172,908,933]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="129.5204">E 129.5204°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B36DFC2DFEC3458E" box="[269,346,943,968]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll. 0 6.09.2012 by E.I. Bekker &amp; A.I. Klimovsky, AAK M-2587; 5 parthenogenetic females from the pool near Tube-Namtsy highway (
<geoCoordinate id="34B650670B6FFFE7B0EDFC56FCBD45AB" box="[653,804,980,1005]" direction="north" orientation="latitude" pageId="13" pageNumber="464" precision="1" value="63.19186">N 63.19186°</geoCoordinate>
,
<geoCoordinate id="34B650670B6FFFE7B151FC57FC5C45AB" box="[817,965,980,1005]" direction="east" orientation="longitude" pageId="13" pageNumber="464" precision="5" value="129.4852">E 129.4852°</geoCoordinate>
), Yakutia Autonomous Republic,
<collectingCountry id="299576300B6FFFE7B72BFC56FA0145AB" box="[1355,1432,980,1005]" name="Russia" pageId="13" pageNumber="464">Russia</collectingCountry>
, coll. 0 6.09.2012 by E.I. Bekker &amp; A.I. Klimovsky, AAK M-2589.
</paragraph>
</subSubSection>
<subSubSection id="1998652B0B6FFFE7B2A7FB9EFEC84386" pageId="13" pageNumber="464" type="diagnosis">
<paragraph id="513D36A00B6FFFE7B2A7FB9EFEC84386" blockId="13.[151,1437,151,2012]" pageId="13" pageNumber="464">
<emphasis id="63F6EAB20B6FFFE7B2A7FB9EFEA34273" bold="true" box="[199,314,1052,1077]" pageId="13" pageNumber="464">Diagnosis</emphasis>
. Body transparent. Parthenogenetic and ephippial female with length up to
<quantity id="967A9B450B6FFFE7B6EAFB9EFB684272" box="[1162,1265,1052,1077]" metricMagnitude="-4" metricUnit="m" metricValue="6.3" pageId="13" pageNumber="464" unit="mm" value="0.63">0.63 mm</quantity>
. Median dorsal keel absent. Sculpture of valves and head strongly developed, represented by hexagonal combs. Rostrum sharply pointed, directed downwards. Labral keel long (reaching tip of rostrum), subtriangular, its anterior margin slightly convex, distal angle acute. Posteroventral angle of valve with few denticles. Postabdomen moderately elongated, slightly tapered distally, postanal margin almost straight, with strong postanal teeth, on postabdominal claw proximal basal less about half size of distal one. Antenna I in female elongated, with a basal peg and seven terminal and two subterminal aesthetascs. Apical swimming setae of antenna II subequal in size. Filter plate of gnathobase II with eight setae; filter plate III with 8 setae; filter plate IV with 6 setae; filter plate V with 4 setae. Male with length up to
<quantity id="967A9B450B6FFFE7B347FABEFE164312" box="[295,399,1340,1365]" metricMagnitude="-4" metricUnit="m" metricValue="5.3" pageId="13" pageNumber="464" unit="mm" value="0.53">0.53 mm</quantity>
. Rostrum short. Postabdomen distal portion as a tube bearing sparsely located, thin setules, postanal teeth transformed into bunches of long, thin setules. Gonopore opens ventrally at level of postabdomen narrowing (base of the tube). Antenna I in male with a well-developed basal peg and nine aesthetascs almost subequal in size.
</paragraph>
</subSubSection>
<subSubSection id="1998652B0B6FFFF9B2A7FA4EFF794693" lastPageId="19" lastPageNumber="470" pageId="13" pageNumber="464" type="description">
<paragraph id="513D36A00B6FFFE7B2A7FA4EFA0440FA" blockId="13.[151,1437,151,2012]" pageId="13" pageNumber="464">
<emphasis id="63F6EAB20B6FFFE7B2A7FA4EFD1E43A3" bold="true" box="[199,647,1484,1509]" pageId="13" pageNumber="464">Description. Parthenogenetic female.</emphasis>
<emphasis id="63F6EAB20B6FFFE7B0F2FA4EFD6C43A2" box="[658,757,1484,1508]" italics="true" pageId="13" pageNumber="464">General.</emphasis>
Body transparent. In lateral view body ovoid, high (body height/ body length about
<quantity id="967A9B450B6FFFE7B3DEFA6DFD95404E" box="[446,524,1519,1544]" metricMagnitude="-2" metricUnit="m" metricValue="1.9304" pageId="13" pageNumber="464" unit="in" value="0.76">0.76 in</quantity>
adults and juveniles). Maximum height in middle of body (
<figureCitation id="C9B92A250B6FFFE7B6CCFA6DFB61404E" box="[1196,1272,1519,1544]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8</figureCitation>
A–C, 10A). In dorsal and anterior view body compressed laterally, a median dorsal keel absent (
<figureCitation id="C9B92A250B6FFFE7B65EF996FB3A406A" box="[1086,1187,1556,1581]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8D</figureCitation>
,
<figureCitation id="C9B92A250B6FFFE7B6D2F996FB7D406A" box="[1202,1252,1556,1580]" captionStart="FIGURE 10" captionStartId="16.[151,250,1858,1880]" captionTargetBox="[239,1345,199,1831]" captionTargetId="figure@16.[233,1351,193,1837]" captionTargetPageId="16" captionText="FIGURE 10. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult parthenogenetic female, lateral view. B, Its dorsal view. C, Head shield. D–E, Head, lateral view. F, Head, lateral view, a fragment. G, Adult parthenogenetic female, ventral view. H, Head, ventral view. Scale bars 0.2 mm for A, 0.1 mm for B, D, G, 0.05 mm for C, E, H, 0.02 mm for F." httpUri="https://zenodo.org/record/2615551/files/figure.png" pageId="13" pageNumber="464">10B</figureCitation>
). Dorsal margin evenly arched from tip of rostrum to posterodorsal angle, without depression between head and the rest of body. Posterior margin relatively straight, posteroventral angle almost straight, with teeth (
<figureCitation id="C9B92A250B6FFFE7B60AF9DEFB214032" box="[1130,1208,1628,1653]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8</figureCitation>
A–C, 10A, 11D-E), ventral margin (
<figureCitation id="C9B92A250B6FFFE7B32BF9FDFE3540DE" box="[331,428,1663,1688]" captionStart="FIGURE 11" captionStartId="17.[151,250,1896,1918]" captionTargetBox="[228,1368,199,1879]" captionTargetId="figure@17.[222,1374,193,1885]" captionTargetPageId="17" captionText="FIGURE 11. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head, anterodorsal view. B, Ornamentation of head. C, Ornamentation of anterior portion of valve. D–E, Armature of posteroventral portion of valve. F, Armature of central portion of valve. G, Antenna II. Scale bars 0.1 mm for A, 0.05 mm for G, 0.02 mm for B–F." httpUri="https://zenodo.org/record/2615553/files/figure.png" pageId="13" pageNumber="464">Fig. 11F</figureCitation>
) with a slight prominence in thirst half of body behind head (
<figureCitation id="C9B92A250B6FFFE7B602F9FDFB3740DE" box="[1122,1198,1663,1688]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8</figureCitation>
A–C). In most cases, sculpture of valves and head strongly developed, represented by hexagonal patterns (
<figureCitation id="C9B92A250B6FFFE7B62CF926FB0E40FA" box="[1100,1175,1700,1725]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8</figureCitation>
A–C, 10A–H, 11A–C).
</paragraph>
<paragraph id="513D36A00B6FFFE7B2A7F94AFAEE4136" blockId="13.[151,1437,151,2012]" pageId="13" pageNumber="464">
<emphasis id="63F6EAB20B6FFFE7B2A7F94AFE9D40A6" box="[199,260,1736,1760]" italics="true" pageId="13" pageNumber="464">Head</emphasis>
with a long rostrum, protruding downward and posteriorly (
<figureCitation id="C9B92A250B6FFFE7B1C2F945FBBA40A6" box="[930,1059,1735,1760]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8A, E</figureCitation>
,
<figureCitation id="C9B92A250B6FFFE7B64FF94AFB1D40A6" box="[1071,1156,1736,1760]" captionStart="FIGURE 11" captionStartId="17.[151,250,1896,1918]" captionTargetBox="[228,1368,199,1879]" captionTargetId="figure@17.[222,1374,193,1885]" captionTargetPageId="17" captionText="FIGURE 11. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head, anterodorsal view. B, Ornamentation of head. C, Ornamentation of anterior portion of valve. D–E, Armature of posteroventral portion of valve. F, Armature of central portion of valve. G, Antenna II. Scale bars 0.1 mm for A, 0.05 mm for G, 0.02 mm for B–F." httpUri="https://zenodo.org/record/2615553/files/figure.png" pageId="13" pageNumber="464">11A, G</figureCitation>
). Eye only slightly larger than ocellus, distance from tip of rostrum to ocellus greater than that between ocellus and eye (
<figureCitation id="C9B92A250B6FFFE7B685F96EFAAA4142" box="[1253,1331,1772,1797]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8</figureCitation>
A–C, E). Head shield elongated, with maximum width immediately in middle (
<figureCitation id="C9B92A250B6FFFE7B1B3F88DFBF8416E" box="[979,1121,1807,1832]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8D, G</figureCitation>
,
<figureCitation id="C9B92A250B6FFFE7B611F892FB3B416E" box="[1137,1186,1808,1832]" captionStart="FIGURE 10" captionStartId="16.[151,250,1858,1880]" captionTargetBox="[239,1345,199,1831]" captionTargetId="figure@16.[233,1351,193,1837]" captionTargetPageId="16" captionText="FIGURE 10. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult parthenogenetic female, lateral view. B, Its dorsal view. C, Head shield. D–E, Head, lateral view. F, Head, lateral view, a fragment. G, Adult parthenogenetic female, ventral view. H, Head, ventral view. Scale bars 0.2 mm for A, 0.1 mm for B, D, G, 0.05 mm for C, E, H, 0.02 mm for F." httpUri="https://zenodo.org/record/2615551/files/figure.png" pageId="13" pageNumber="464">10C</figureCitation>
,
<figureCitation id="C9B92A250B6FFFE7B6D4F892FB7E416E" box="[1204,1255,1808,1832]" captionStart="FIGURE 11" captionStartId="17.[151,250,1896,1918]" captionTargetBox="[228,1368,199,1879]" captionTargetId="figure@17.[222,1374,193,1885]" captionTargetPageId="17" captionText="FIGURE 11. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head, anterodorsal view. B, Ornamentation of head. C, Ornamentation of anterior portion of valve. D–E, Armature of posteroventral portion of valve. F, Armature of central portion of valve. G, Antenna II. Scale bars 0.1 mm for A, 0.05 mm for G, 0.02 mm for B–F." httpUri="https://zenodo.org/record/2615553/files/figure.png" pageId="13" pageNumber="464">11A</figureCitation>
). In dorsal and anterodorsal views rostrum with acute apex (
<figureCitation id="C9B92A250B6FFFE7B0F3F8B6FD47410A" box="[659,734,1844,1869]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8</figureCitation>
E–G, 9D–E, G–H, 10A, G). Two major head pores (
<figureCitation id="C9B92A250B6FFFE7B74CF8B6FAE1410A" box="[1324,1400,1844,1869]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8</figureCitation>
G– H, 10C, 12A–B), PP = 1.6 IP. Lateral head pores minute, located at midline between major pores (
<figureCitation id="C9B92A250B6FFFE7B682F8D5FAB74136" box="[1250,1326,1879,1904]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8</figureCitation>
G–H).
</paragraph>
<paragraph id="513D36A00B6FFFE7B2A7F8FEFF4F419A" blockId="13.[151,1437,151,2012]" pageId="13" pageNumber="464">
<emphasis id="63F6EAB20B6FFFE7B2A7F8FEFEB941D2" box="[199,288,1916,1940]" italics="true" pageId="13" pageNumber="464">Labrum</emphasis>
large, with a fleshy main body, small distal labral plate setulated, labral keel short (not projected behind tip of rostrum), triangular, its anterior margin slightly convex, distal angle acute, with a drawn tip (
<figureCitation id="C9B92A250B6FFFE7B757F822FA0E41FE" box="[1335,1431,1952,1977]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="13" pageNumber="464">Figs. 8E</figureCitation>
,
<figureCitation id="C9B92A250B6FFFE7B2F7F846FF50419A" box="[151,201,1988,2012]" captionStart="FIGURE 11" captionStartId="17.[151,250,1896,1918]" captionTargetBox="[228,1368,199,1879]" captionTargetId="figure@17.[222,1374,193,1885]" captionTargetPageId="17" captionText="FIGURE 11. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head, anterodorsal view. B, Ornamentation of head. C, Ornamentation of anterior portion of valve. D–E, Armature of posteroventral portion of valve. F, Armature of central portion of valve. G, Antenna II. Scale bars 0.1 mm for A, 0.05 mm for G, 0.02 mm for B–F." httpUri="https://zenodo.org/record/2615553/files/figure.png" pageId="13" pageNumber="464">11G</figureCitation>
).
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FF1AFD86475D" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FF1AFE9646F6" box="[199,271,152,176]" italics="true" pageId="14" pageNumber="465">Valves</emphasis>
large, ventral margin armed with numerous setae of different size in different regions, all plumose and located exactly marginally (
<figureCitation id="C9B92A250B6CFFE4B3B0FF39FD854692" box="[464,540,187,212]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="14" pageNumber="465">Figs. 8</figureCitation>
A–C, 9A–G, 11D–F). Anterior margin broadly rounded (
<figureCitation id="C9B92A250B6CFFE4B6FAFF39FB7F4692" box="[1178,1254,187,212]" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="14" pageNumber="465">Figs. 8</figureCitation>
A–C, 9D, 12A). Ventral margin with setae covered by long prominent setules (
<figureCitation id="C9B92A250B6CFFE4B116FF5DFC5E46BE" box="[886,967,223,248]" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Figs. 9</figureCitation>
B–G, 11D–F). Posteroventral angle with several teeth (
<figureCitation id="C9B92A250B6CFFE4B353FE81FEE6475D" box="[307,383,259,284]" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Figs. 9</figureCitation>
B–G, 11D–E).
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FEA5FB0E4450" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FEA5FEF94779" box="[199,352,295,319]" italics="true" pageId="14" pageNumber="465">Postabdomen</emphasis>
elongated, wide, its ventral margin almost straight (
<figureCitation id="C9B92A250B6CFFE4B1C3FEA4FC764779" box="[931,1007,294,319]" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Figs. 9</figureCitation>
H–L, 13A–B). Preanal margin slightly concave, and slightly longer than anal margin, preanal and postanal angle well-defined, postanal margin clearly longer than anal margin, dorsodistal angle almost straight (
<figureCitation id="C9B92A250B6CFFE4B14BFEECFCE147C1" box="[811,888,366,391]" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Figs. 9</figureCitation>
K–L, 13B–D). Basis of claws inflated. Each side of postanal portion provided with a row of long and thickened postanal teeth, increasing in size distally (
<figureCitation id="C9B92A250B6CFFE4B74DFE10FAE047EC" box="[1325,1401,402,427]" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Figs. 9</figureCitation>
K– L, 13A–D). Laterally to marginal denticles, a row of fascicles consisting of bunches of short, fine setules (
<figureCitation id="C9B92A250B6CFFE4B704FE37FF3D47B4" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Figs. 9</figureCitation>
H–I, 13A–C). Postabdominal seta longer than postanal margin, with basal segment approximately as long as preanal margin and distal segment short than basal one, supplied with delicate setules (9H).
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FDA3FD4C44E3" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FDA3FE34447F" box="[199,429,545,569]" italics="true" pageId="14" pageNumber="465">Postabdominal claw</emphasis>
massive and long (subequal in length to anal and preanal margins), slightly curved (
<figureCitation id="C9B92A250B6CFFE4B703FDA3FF3D441B" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Figs. 9</figureCitation>
K–L, 13A–C). Dorsal edge of claw armed with a bunch of fine setules decreasing in size distally. Two basal spines on each claw, distalmost basal spine long (two times longer than the base of claw), proximal basal spine relatively short, two times shorter than distal spine.
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FD32FEF84556" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FD32FEAE448E" box="[199,311,688,712]" italics="true" pageId="14" pageNumber="465">Antenna I</emphasis>
not reaching tip of rostrum, cylindrical, with a well-defined basal peg (
<figureCitation id="C9B92A250B6CFFE4B618FD2DFB5E448E" box="[1144,1223,687,712]" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Figs. 9</figureCitation>
M–N). Antennular sensory seta slender, longer than half of antenna I, arising at half of antennular body. Nine short aesthetascs unequal in length.
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FC99FBC945A0" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FC99FEA64575" box="[199,319,795,819]" italics="true" pageId="14" pageNumber="465">Antenna II</emphasis>
relatively short, coxal part with two sensory setae, basal segment robust, with a small spine (
<figureCitation id="C9B92A250B6CFFE4B704FC99FF3A4511" captionStart="FIGURE 8" captionStartId="11.[151,250,1914,1936]" captionTargetBox="[182,1389,210,1877]" captionTargetId="figure@11.[174,1413,193,1902]" captionTargetPageId="11" captionText="FIGURE 8. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–B, Adult parthenogenetic female, lateral view. C, Juvenile parthenogenetic female, lateral view. D, Adult parthenogenetic female, dorsal view. E, Head, lateral view. F, Head. G, Head shield. H, Head pores. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615545/files/figure.png" pageId="14" pageNumber="465">Figs. 8</figureCitation>
A–C, 9O, 10E, 11G). Antennal branches elongated, exopod and endopod brunches subequal in length, all segments cylindrical, covered by transverse rows of fine spinules. Antennal formula: setae 0-0-3/1-1-3, spines 1-0- 1/0-0-1. Proximal segment of exopod with a short spine. Exopod and endopod apical swimming setae and lateral endopod setae covered by fine long setules (
<figureCitation id="C9B92A250B6CFFE4B0E9FC28FD464584" box="[649,735,938,963]" captionStart="FIGURE 9" captionStartId="15.[151,250,1878,1900]" captionTargetBox="[179,1420,481,1857]" captionTargetId="figure@15.[170,1420,481,1868]" captionTargetPageId="15" captionText="FIGURE 9. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="14" pageNumber="465">Fig. 9P</figureCitation>
). Distal segments of apical setae with chitin insertions. Apical spines on distal segments of exopod and endopod almost subequal in size (
<figureCitation id="C9B92A250B6CFFE4B1BCFC4FFBDD45A0" box="[988,1092,973,998]" captionStart="FIGURE 11" captionStartId="17.[151,250,1896,1918]" captionTargetBox="[228,1368,199,1879]" captionTargetId="figure@17.[222,1374,193,1885]" captionTargetPageId="17" captionText="FIGURE 11. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head, anterodorsal view. B, Ornamentation of head. C, Ornamentation of anterior portion of valve. D–E, Armature of posteroventral portion of valve. F, Armature of central portion of valve. G, Antenna II. Scale bars 0.1 mm for A, 0.05 mm for G, 0.02 mm for B–F." httpUri="https://zenodo.org/record/2615553/files/figure.png" pageId="14" pageNumber="465">Fig. 11G</figureCitation>
).
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FC73FC8A424F" blockId="14.[151,1437,151,2035]" box="[199,787,1009,1034]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FC73FEB7424F" box="[199,302,1009,1033]" italics="true" pageId="14" pageNumber="465">Maxilla I</emphasis>
(
<figureCitation id="C9B92A250B6CFFE4B35DFC73FE3A424C" box="[317,419,1009,1034]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">Fig. 14A</figureCitation>
) with three short setulated setae.
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FB97FE144268" blockId="14.[151,1437,151,2035]" box="[199,397,1045,1070]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FB97FEA1426B" box="[199,312,1045,1069]" italics="true" pageId="14" pageNumber="465">Maxilla II</emphasis>
absent.
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FBBBFB964329" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FBBBFE8A4217" box="[199,275,1081,1105]" italics="true" pageId="14" pageNumber="465">Limb I</emphasis>
(
<figureCitation id="C9B92A250B6CFFE4B344FBBBFE0C4217" box="[292,405,1081,1106]" captionStart="FIGURE 13" captionStartId="19.[151,250,1876,1898]" captionTargetBox="[158,1429,515,1823]" captionTargetId="figure@19.[151,1436,508,1831]" captionTargetPageId="19" captionText="FIGURE 13. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Postabdomen, lateral view. B, Its distal portion. C, Postabdominal claw. D, Armature of dorsal margin of postabdomen. E, Limb I, inner view. Scale bars 0.05 mm for A, E, 0.02 mm for B–C, 0.01 mm for D." httpUri="https://zenodo.org/record/2615557/files/figure.png" pageId="14" pageNumber="465">Figs. 13E</figureCitation>
,
<figureCitation id="C9B92A250B6CFFE4B3C3FBBBFE274217" box="[419,446,1081,1105]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">14</figureCitation>
B–C, 15A–C, G): accessory seta present, ODL relatively small, bears a long seta with naked distal segment and a short seta with short, setulated distal segment (
<figureCitation id="C9B92A250B6CFFE4B1B5FBDEFBDC4233" box="[981,1093,1116,1141]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">Figs. 14C</figureCitation>
,
<figureCitation id="C9B92A250B6CFFE4B630FBDEFB1D4233" box="[1104,1156,1116,1141]" captionStart="FIGURE 15" captionStartId="21.[151,250,1872,1894]" captionTargetBox="[158,1429,200,1843]" captionTargetId="figure@21.[151,1436,193,1851]" captionTargetPageId="21" captionText="FIGURE 15. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Limbs I–V, outer view. B, Limbs I–II, inner view. C, Limb I. D–E, Limb II. F, Scraping setae of limb II. G, Distal portion of limb I. Scale bars 0.05 mm for A–C, E, 0.02 mm for D, G, 0.01 mm for F." httpUri="https://zenodo.org/record/2615561/files/figure.png" pageId="14" pageNumber="465">15G</figureCitation>
). IDL subequal in size to ODL, covered by transverse rows of setules. First IDL seta short, naked, second and third IDL setae not equal in size and similarly armed distally with short, fine setules (
<figureCitation id="C9B92A250B6CFFE4B17FFB26FC0942FB" box="[799,912,1188,1213]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">Figs. 14C</figureCitation>
,
<figureCitation id="C9B92A250B6CFFE4B1FDFB26FC4842FB" box="[925,977,1188,1213]" captionStart="FIGURE 15" captionStartId="21.[151,250,1872,1894]" captionTargetBox="[158,1429,200,1843]" captionTargetId="figure@21.[151,1436,193,1851]" captionTargetPageId="21" captionText="FIGURE 15. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Limbs I–V, outer view. B, Limbs I–II, inner view. C, Limb I. D–E, Limb II. F, Scraping setae of limb II. G, Distal portion of limb I. Scale bars 0.05 mm for A–C, E, 0.02 mm for D, G, 0.01 mm for F." httpUri="https://zenodo.org/record/2615561/files/figure.png" pageId="14" pageNumber="465">15G</figureCitation>
). Endite 3 with three soft posterior setae (a–c) and stiff anterior seta 1 of similar length (
<figureCitation id="C9B92A250B6CFFE4B0D0FB45FCBA42A6" box="[688,803,1223,1248]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">Figs. 14C</figureCitation>
). Endite 2 with short seta (anterior seta d), long setae (e and f), and delicate posterior seta 2 armed with minute setules. Endite 1 with long, slender posterior setae (g–i), a very short seta (j), and anterior seta 3 (it significantly shorter than seta 2). Fascicles of thin setules on inner face of limb, plus bunches of longer thicker setules at ventral margin of limb. Two slender ejector hooks of remarkably different size. A short seta, a remnant of the maxillar process, on the limb base.
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7FAF9FE004000" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7FAF9FE8743D4" box="[199,286,1403,1427]" italics="true" pageId="14" pageNumber="465">Limb II</emphasis>
(
<figureCitation id="C9B92A250B6CFFE4B350FAF8FE3C43D5" box="[304,421,1402,1427]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">Figs. 14D</figureCitation>
,
<figureCitation id="C9B92A250B6CFFE4B3D4FAF8FE5443D5" box="[436,461,1402,1427]" captionStart="FIGURE 15" captionStartId="21.[151,250,1872,1894]" captionTargetBox="[158,1429,200,1843]" captionTargetId="figure@21.[151,1436,193,1851]" captionTargetPageId="21" captionText="FIGURE 15. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Limbs I–V, outer view. B, Limbs I–II, inner view. C, Limb I. D–E, Limb II. F, Scraping setae of limb II. G, Distal portion of limb I. Scale bars 0.05 mm for A–C, E, 0.02 mm for D, G, 0.01 mm for F." httpUri="https://zenodo.org/record/2615561/files/figure.png" pageId="14" pageNumber="465">15</figureCitation>
A–F) subrectangular. Exopodite subquadrangular, with a short seta. Inner portion of limb with eight setae: setae 1–3 especially long, setae 4–5 shorter, subequal in size, setae 6–8 short, also subequal in size. A series of small projections posteriorly to distal setae, and a small sensillum near scraper 4. Distal armature of gnathobase with a bunch of plumose setules, unique for the anomopods, and four setae. Filter plate with eight setae, two distalmost setae subequal in size and shorter than the rest; basal most seta of filter plate with inflated basal segment.
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7F9D3FBB04179" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7F9D3FEBC402F" box="[199,293,1617,1641]" italics="true" pageId="14" pageNumber="465">Limb III</emphasis>
(
<figureCitation id="C9B92A250B6CFFE4B355F9D3FE09402F" box="[309,400,1617,1642]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">Figs. 14</figureCitation>
E–F, 15A) with ovoid elongated epipodite. Exopodite subrectangular, with four distal setae (1–4), and three lateral setae (5–7). Distal endite with three anterior setae (
<figureCitation id="C9B92A250B6CFFE4B193F9F6FBC940CB" box="[1011,1104,1652,1677]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">Figs. 14</figureCitation>
E–F), all with minute setules distally, of them two distal setae (1–2) long, basalmost seta (3) short. Small sensillae near bases of setae 2 and 3. Basal endite with four anterior setae (4–7), slightly increasing in size basally, not armed, small bottle-shaped sensillum near seta 4. On posterior surface, six soft setae (a–f) subequal in length, bilaterally armed with sparse, fine setules. Gnathobase not clearly separated from basal endite. Distal armature of gnathobase with large, bottleshaped sensillum, three setae, and a bunch of setules. Filter plate with eight setae.
</paragraph>
<paragraph id="513D36A00B6CFFE4B2A7F8C9FDF441B4" blockId="14.[151,1437,151,2035]" pageId="14" pageNumber="465">
<emphasis id="63F6EAB20B6CFFE4B2A7F8C9FEBE4125" box="[199,295,1867,1891]" italics="true" pageId="14" pageNumber="465">Limb IV</emphasis>
(
<figureCitation id="C9B92A250B6CFFE4B35CF8C9FE024125" box="[316,411,1867,1892]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="14" pageNumber="465">Figs. 14</figureCitation>
G–H, 15A) with ovoid elongated epipodite and rounded preepipodite. Exopodite wide, subovoid, with seven setae of unequal size. Innerdistal portion of limb IV with four marginal setae. Distalmost seta (1) slender and uncovered with minute setules on distal segment, setae 2–4 with thick basal segments and slender, setulated distal segments. On posterior surface, four soft setae (a–d), gnathobase well-separated, its distal armature with four setae. Filter plate with six setae.
</paragraph>
<paragraph id="513D36A00B6DFFE5B2A7FF1AFE964779" blockId="15.[151,1436,151,429]" pageId="15" pageNumber="466">
<emphasis id="63F6EAB20B6DFFE5B2A7FF1AFE8046F6" box="[199,281,152,176]" italics="true" pageId="15" pageNumber="466">Limb V</emphasis>
(
<figureCitation id="C9B92A250B6DFFE5B348FF15FE1646F6" box="[296,399,151,176]" captionStart="FIGURE 14" captionStartId="20.[151,250,1904,1926]" captionTargetBox="[155,1417,212,1879]" captionTargetId="figure@20.[151,1436,193,1883]" captionTargetPageId="20" captionText="FIGURE 14. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm." httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="15" pageNumber="466">
Figs.
<date id="253C10600B6DFFE5B308FF1AFE1646F6" box="[360,399,152,176]" pageId="15" pageNumber="466" value="2014-01">14I</date>
</figureCitation>
,
<figureCitation id="C9B92A250B6DFFE5B3FCFF15FE5546F6" box="[412,460,151,176]" captionStart="FIGURE 15" captionStartId="21.[151,250,1872,1894]" captionTargetBox="[158,1429,200,1843]" captionTargetId="figure@21.[151,1436,193,1851]" captionTargetPageId="21" captionText="FIGURE 15. Pleuroxus yakutensis sp. nov., parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Limbs I–V, outer view. B, Limbs I–II, inner view. C, Limb I. D–E, Limb II. F, Scraping setae of limb II. G, Distal portion of limb I. Scale bars 0.05 mm for A–C, E, 0.02 mm for D, G, 0.01 mm for F." httpUri="https://zenodo.org/record/2615561/files/figure.png" pageId="15" pageNumber="466">15A</figureCitation>
) with ovoid elongated epipodite and rounded preepipodite. Exopodite large, subovoid, with a single distal seta 1 and three lateral setae (2–4), distally to seta 1 there are two projections bearing long setules. Inner limb portion as truncated, flat lobe, with setulated inner margin, supplied with setulated setae 1 and 2, the latter bears specially robust setules. Distal armature of gnathobase as a single projection. Filter plate with four long setae.
</paragraph>
<paragraph id="513D36A00B6DFFE5B2A7FECEFDCB47EB" blockId="15.[151,1436,151,429]" pageId="15" pageNumber="466">
<emphasis id="63F6EAB20B6DFFE5B2A7FECEFE394723" bold="true" box="[199,416,332,357]" pageId="15" pageNumber="466">Ephippial female.</emphasis>
Identical to parthenogenetic female (
<figureCitation id="C9B92A250B6DFFE5B138FECEFC2F4723" box="[856,950,332,357]" captionStart="FIGURE 16" captionStartId="22.[151,250,1879,1901]" captionTargetBox="[232,1359,199,1862]" captionTargetId="figure@22.[226,1365,193,1868]" captionTargetPageId="22" captionText="FIGURE 16. Pleuroxus yakutensis sp. nov., parthenogenetic (A–D) and ephippial (E–H) females from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky., A, Adult parthenogenetic female, laterodorsal view. B, Its anterior view. C, Its anterolateral view. D, Head, anterolateral view. E, Ephippial female, lateral view. F, Ephippium, lateral view. G, Ornamentation and armature of posteroventral portion of valve. H, Ornamentation of posterior portion of valve. Scale bars 0.2 mm for A–C, E, 0.1 mm for D, F, 0.02 mm for G–H." httpUri="https://zenodo.org/record/2615563/files/figure.png" pageId="15" pageNumber="466">Figs. 16</figureCitation>
A–D) in size and shape, but anterodorsal portion of valves modified into ephippium (
<figureCitation id="C9B92A250B6DFFE5B0CCFEEDFC9447CE" box="[684,781,367,392]" captionStart="FIGURE 16" captionStartId="22.[151,250,1879,1901]" captionTargetBox="[232,1359,199,1862]" captionTargetId="figure@22.[226,1365,193,1868]" captionTargetPageId="22" captionText="FIGURE 16. Pleuroxus yakutensis sp. nov., parthenogenetic (A–D) and ephippial (E–H) females from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky., A, Adult parthenogenetic female, laterodorsal view. B, Its anterior view. C, Its anterolateral view. D, Head, anterolateral view. E, Ephippial female, lateral view. F, Ephippium, lateral view. G, Ornamentation and armature of posteroventral portion of valve. H, Ornamentation of posterior portion of valve. Scale bars 0.2 mm for A–C, E, 0.1 mm for D, F, 0.02 mm for G–H." httpUri="https://zenodo.org/record/2615563/files/figure.png" pageId="15" pageNumber="466">Figs. 16</figureCitation>
E–H). Ephippium not bordered from the rest of body, brownish, contains a single resting egg.
</paragraph>
<caption id="05FD66280B6DFFE5B2F7F8D4FC94418E" httpUri="https://zenodo.org/record/2615547/files/figure.png" pageId="15" pageNumber="466" startId="15.[151,250,1878,1900]" targetBox="[179,1420,481,1857]" targetPageId="15">
<paragraph id="513D36A00B6DFFE5B2F7F8D4FC94418E" blockId="15.[151,1436,1878,1992]" pageId="15" pageNumber="466">
<emphasis id="63F6EAB20B6DFFE5B2F7F8D4FE8B412D" bold="true" box="[151,274,1878,1900]" pageId="15" pageNumber="466">FIGURE 9.</emphasis>
<taxonomicName id="96824D230B6DFFE5B378F8D4FE77412A" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[280,494,1878,1900]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="15" pageNumber="466" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B6DFFE5B378F8D4FE77412A" box="[280,494,1878,1900]" italics="true" pageId="15" pageNumber="466">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B6DFFE5B394F8D5FDDD412A" box="[500,580,1879,1900]" pageId="15" pageNumber="466" rank="species">
<emphasis id="63F6EAB20B6DFFE5B394F8D5FDDD412A" bold="true" box="[500,580,1879,1900]" pageId="15" pageNumber="466">sp. nov.</emphasis>
</taxonomicNameLabel>
, parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Anterior portion of valve. B–F, Armature of posteroventral portion of valve. H–J, Postabdomen, lateral view. K–L, Distal portion of postabdomen. M–N, Antenna I. O, Antenna II and labrum. P, Swimming seta. Scale bars 0.1 mm.
</paragraph>
</caption>
<caption id="05FD66280B72FFFAB2F7F8C0FED44194" httpUri="https://zenodo.org/record/2615551/files/figure.png" pageId="16" pageNumber="467" startId="16.[151,250,1858,1880]" targetBox="[239,1345,199,1831]" targetPageId="16">
<paragraph id="513D36A00B72FFFAB2F7F8C0FED44194" blockId="16.[151,1436,1858,2002]" pageId="16" pageNumber="467">
<emphasis id="63F6EAB20B72FFFAB2F7F8C0FEBD4111" bold="true" box="[151,292,1858,1880]" pageId="16" pageNumber="467">FIGURE 10.</emphasis>
<taxonomicName id="96824D230B72FFFAB34EF8C0FD9E411E" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[302,519,1858,1880]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="16" pageNumber="467" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B72FFFAB34EF8C0FD9E411E" box="[302,519,1858,1880]" italics="true" pageId="16" pageNumber="467">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<emphasis id="63F6EAB20B72FFFAB072F8C0FDF74111" bold="true" box="[530,622,1858,1879]" pageId="16" pageNumber="467">
<taxonomicNameLabel id="78C557C90B72FFFAB072F8C0FDF04111" box="[530,617,1858,1879]" pageId="16" pageNumber="467" rank="species">sp. nov.</taxonomicNameLabel>
,
</emphasis>
parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult parthenogenetic female, lateral view. B, Its dorsal view. C, Head shield. D–E, Head, lateral view. F, Head, lateral view, a fragment. G, Adult parthenogenetic female, ventral view. H, Head, ventral view. Scale bars 0.2 mm for A, 0.1 mm for B, D, G, 0.05 mm for C, E, H, 0.02 mm for F.
</paragraph>
</caption>
<caption id="05FD66280B73FFFBB2F7F8EAFA98419C" httpUri="https://zenodo.org/record/2615553/files/figure.png" pageId="17" pageNumber="468" startId="17.[151,250,1896,1918]" targetBox="[228,1368,199,1879]" targetPageId="17">
<paragraph id="513D36A00B73FFFBB2F7F8EAFA98419C" blockId="17.[151,1436,1896,2010]" pageId="17" pageNumber="468">
<emphasis id="63F6EAB20B73FFFBB2F7F8EAFEBB413B" bold="true" box="[151,290,1896,1918]" pageId="17" pageNumber="468">FIGURE 11.</emphasis>
<taxonomicName id="96824D230B73FFFBB34DF8EAFD9E4138" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[301,519,1896,1918]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="17" pageNumber="468" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B73FFFBB34DF8EAFD9E4138" box="[301,519,1896,1918]" italics="true" pageId="17" pageNumber="468">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B73FFFBB071F8EAFDFF4138" box="[529,614,1896,1918]" pageId="17" pageNumber="468" rank="species">
<emphasis id="63F6EAB20B73FFFBB071F8EAFDF9413B" bold="true" box="[529,608,1896,1917]" pageId="17" pageNumber="468">sp. nov</emphasis>
.
</taxonomicNameLabel>
, parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head, anterodorsal view. B, Ornamentation of head. C, Ornamentation of anterior portion of valve. D–E, Armature of posteroventral portion of valve. F, Armature of central portion of valve. G, Antenna II. Scale bars 0.1 mm for A, 0.05 mm for G, 0.02 mm for B–F.
</paragraph>
</caption>
<caption id="05FD66280B70FFF8B2F7FC92FDE44525" httpUri="https://zenodo.org/record/2615555/files/figure.png" pageId="18" pageNumber="469" startId="18.[151,250,784,806]" targetBox="[159,1428,222,714]" targetPageId="18">
<paragraph id="513D36A00B70FFF8B2F7FC92FDE44525" blockId="18.[151,1436,784,867]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2F7FC92FEBD4563" bold="true" box="[151,292,784,806]" pageId="18" pageNumber="469">FIGURE 12.</emphasis>
<taxonomicName id="96824D230B70FFF8B34EFC92FD9E4560" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[302,519,784,806]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="18" pageNumber="469" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B70FFF8B34EFC92FD9E4560" box="[302,519,784,806]" italics="true" pageId="18" pageNumber="469">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B70FFF8B072FC92FDFE4563" box="[530,615,784,805]" pageId="18" pageNumber="469" rank="species">
<emphasis id="63F6EAB20B70FFF8B072FC92FDFE4563" bold="true" box="[530,615,784,805]" pageId="18" pageNumber="469">sp. nov.</emphasis>
</taxonomicNameLabel>
, parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Head pores. B, Anterior head pore. Scale bars 0.02 mm for A, 0.01 mm for B.
</paragraph>
</caption>
<paragraph id="513D36A00B70FFF8B2A7FC12FDF345B6" blockId="18.[151,1437,912,2017]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7FC12FECF45EF" bold="true" box="[199,342,912,937]" pageId="18" pageNumber="469">Adult male.</emphasis>
<emphasis id="63F6EAB20B70FFF8B300FC12FE5A45EE" box="[352,451,912,936]" italics="true" pageId="18" pageNumber="469">General.</emphasis>
Body transparent. In lateral view elongated (height/length ratio about
<quantity id="967A9B450B70FFF8B695FC12FADF45EF" box="[1269,1350,912,937]" metricMagnitude="-2" metricUnit="m" metricValue="1.7526" pageId="18" pageNumber="469" unit="in" value="0.69">0.69 in</quantity>
adults) (
<figureCitation id="C9B92A250B70FFF8B2FFFC36FE95458A" box="[159,268,948,973]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Fig. 17A</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B37DFC36FEC8458A" box="[285,337,948,972]" captionStart="FIGURE 18" captionStartId="24.[151,250,1910,1932]" captionTargetBox="[158,1429,512,1891]" captionTargetId="figure@24.[151,1436,504,1898]" captionTargetPageId="24" captionText="FIGURE 18. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B, Its lateroventral view. C, Head, lateral view. D–E, Its lateroventral view. F, Antenna I. Scale bars 0.1 mm for A–B, 0.05 mm for C– F." httpUri="https://zenodo.org/record/2615567/files/figure.png" pageId="18" pageNumber="469">18A</figureCitation>
). Dorsal margin slightly convex, posterodorsal angle expressed, posteroventral angle broadly rounded. Ventral margin strongly convex.
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7FC7EFC4C421B" blockId="18.[151,1437,912,2017]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7FC7EFE9D4252" box="[199,260,1020,1044]" italics="true" pageId="18" pageNumber="469">Head</emphasis>
relatively small, narrow (
<figureCitation id="C9B92A250B70FFF8B049FC7EFD084252" box="[553,657,1020,1045]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Fig. 17A</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B0FDFC7EFD214252" box="[669,696,1020,1044]" captionStart="FIGURE 18" captionStartId="24.[151,250,1910,1932]" captionTargetBox="[158,1429,512,1891]" captionTargetId="figure@24.[151,1436,504,1898]" captionTargetPageId="24" captionText="FIGURE 18. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B, Its lateroventral view. C, Head, lateral view. D–E, Its lateroventral view. F, Antenna I. Scale bars 0.1 mm for A–B, 0.05 mm for C– F." httpUri="https://zenodo.org/record/2615567/files/figure.png" pageId="18" pageNumber="469">18</figureCitation>
C–F). Rostrum pointed, relatively short, only slightly longer than antenna I (
<figureCitation id="C9B92A250B70FFF8B372FBA2FEE2427E" box="[274,379,1056,1081]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Fig. 17A</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B3E9FBA2FE21427E" box="[393,440,1056,1080]" captionStart="FIGURE 18" captionStartId="24.[151,250,1910,1932]" captionTargetBox="[158,1429,512,1891]" captionTargetId="figure@24.[151,1436,504,1898]" captionTargetPageId="24" captionText="FIGURE 18. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B, Its lateroventral view. C, Head, lateral view. D–E, Its lateroventral view. F, Antenna I. Scale bars 0.1 mm for A–B, 0.05 mm for C– F." httpUri="https://zenodo.org/record/2615567/files/figure.png" pageId="18" pageNumber="469">18F</figureCitation>
). Compound eye slightly larger than ocellus. Distance from tip of rostrum to centre of ocellus somewhat larger than distance between centers of ocellus and eye.
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7FBEAFB4342C6" blockId="18.[151,1437,912,2017]" box="[199,1242,1128,1153]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7FBEAFEB942C6" box="[199,288,1128,1152]" italics="true" pageId="18" pageNumber="469">Labrum</emphasis>
with a short, triangular labral keel, similar in proportion to that in female (
<figureCitation id="C9B92A250B70FFF8B605FBEAFB5742C6" box="[1125,1230,1128,1153]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Fig. 17A</figureCitation>
).
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7FB0EFC4842E2" blockId="18.[151,1437,912,2017]" box="[199,977,1164,1189]" pageId="18" pageNumber="469">
Armature of posteroventral angle of valve as in female (
<figureCitation id="C9B92A250B70FFF8B15BFB0EFC1342E2" box="[827,906,1164,1189]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Fig. 17</figureCitation>
B–D).
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7FB32FF4D4382" blockId="18.[151,1437,912,2017]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7FB32FEF9428E" box="[199,352,1200,1224]" italics="true" pageId="18" pageNumber="469">Postabdomen</emphasis>
elongated, tapering distally (
<figureCitation id="C9B92A250B70FFF8B0D4FB32FCBF428E" box="[692,806,1200,1225]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Figs. 17E</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B155FB32FCFE428E" box="[821,871,1200,1224]" captionStart="FIGURE 18" captionStartId="24.[151,250,1910,1932]" captionTargetBox="[158,1429,512,1891]" captionTargetId="figure@24.[151,1436,504,1898]" captionTargetPageId="24" captionText="FIGURE 18. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B, Its lateroventral view. C, Head, lateral view. D–E, Its lateroventral view. F, Antenna I. Scale bars 0.1 mm for A–B, 0.05 mm for C– F." httpUri="https://zenodo.org/record/2615567/files/figure.png" pageId="18" pageNumber="469">18A</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B117FB32FC0B428E" box="[887,914,1200,1224]" captionStart="FIGURE 19" captionStartId="25.[151,250,1927,1949]" captionTargetBox="[158,1429,465,1892]" captionTargetId="figure@25.[151,1436,457,1901]" captionTargetPageId="25" captionText="FIGURE 19. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–E, Distal portion of postabdomen. F, Male hooks of limbs I. Scale bars 0.05 mm for A, 0.02 mm for B, D, F, 0.01 mm for C, E." httpUri="https://zenodo.org/record/2615569/files/figure.png" pageId="18" pageNumber="469">19</figureCitation>
A–E). Postabdomen length/height ratio about 2.8. Ventral margin broadly concave, somewhat undulated in postanal portion. Preanal and anal margins slightly concave. Postanal margin broadly convex. Postanal margin about 2 times longer than anal and preanal margins. Postanal and preanal angles smooth. Postanal margin armed by bunches of long setules of similar size through all the margin length, following by clusters of short setules on anal margin. Bunches of fine setules on lateral surfaces of postanal and anal margins. Distal portion of postabdomen as a narrow tube, thin sparsely located setules on it. Gonopores open ventrally on the level of postabdominal narrowing. Some short spinules near them (
<figureCitation id="C9B92A250B70FFF8B746FA0AFA0143E6" box="[1318,1432,1416,1441]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Figs. 17E</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B2F7FA2EFF514382" box="[151,200,1452,1476]" captionStart="FIGURE 19" captionStartId="25.[151,250,1927,1949]" captionTargetBox="[158,1429,465,1892]" captionTargetId="figure@25.[151,1436,457,1901]" captionTargetPageId="25" captionText="FIGURE 19. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–E, Distal portion of postabdomen. F, Male hooks of limbs I. Scale bars 0.05 mm for A, 0.02 mm for B, D, F, 0.01 mm for C, E." httpUri="https://zenodo.org/record/2615569/files/figure.png" pageId="18" pageNumber="469">19E</figureCitation>
).
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7FA52FBBE404A" blockId="18.[151,1437,912,2017]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7FA52FE2943AE" box="[199,432,1488,1512]" italics="true" pageId="18" pageNumber="469">Postabdominal claw</emphasis>
almost straight, 2 times shorter than anal margin, with a thin basal spine subequal in length to claw diameter at base, and a tiny second basal spine (
<figureCitation id="C9B92A250B70FFF8B136FA76FC20404A" box="[854,953,1524,1549]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Fig. 17E</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B1A5FA76FC79404A" box="[965,992,1524,1548]" captionStart="FIGURE 19" captionStartId="25.[151,250,1927,1949]" captionTargetBox="[158,1429,465,1892]" captionTargetId="figure@25.[151,1436,457,1901]" captionTargetPageId="25" captionText="FIGURE 19. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–E, Distal portion of postabdomen. F, Male hooks of limbs I. Scale bars 0.05 mm for A, 0.02 mm for B, D, F, 0.01 mm for C, E." httpUri="https://zenodo.org/record/2615569/files/figure.png" pageId="18" pageNumber="469">19</figureCitation>
B–D).
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7F99AFDE6403E" blockId="18.[151,1437,912,2017]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7F99AFEA14076" box="[199,312,1560,1584]" italics="true" pageId="18" pageNumber="469">Antenna I</emphasis>
subconical, short (thicker than in female), with a well-developed basal peg, with nine terminal aesthetascs of subequal size (
<figureCitation id="C9B92A250B70FFF8B389F9BEFDC94012" box="[489,592,1596,1621]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Fig. 17F</figureCitation>
). Male seta long, arising at the middle of antenna I, slightly shorter than antennular sensory seta (
<figureCitation id="C9B92A250B70FFF8B3CBF9E2FD8F403E" box="[427,534,1632,1657]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Figs. 17F</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B042F9E2FDA4403E" box="[546,573,1632,1656]" captionStart="FIGURE 18" captionStartId="24.[151,250,1910,1932]" captionTargetBox="[158,1429,512,1891]" captionTargetId="figure@24.[151,1436,504,1898]" captionTargetPageId="24" captionText="FIGURE 18. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B, Its lateroventral view. C, Head, lateral view. D–E, Its lateroventral view. F, Antenna I. Scale bars 0.1 mm for A–B, 0.05 mm for C– F." httpUri="https://zenodo.org/record/2615567/files/figure.png" pageId="18" pageNumber="469">18</figureCitation>
B–F).
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7F906FD2640DA" blockId="18.[151,1437,912,2017]" box="[199,703,1668,1693]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7F906FEA740DA" box="[199,318,1668,1692]" italics="true" pageId="18" pageNumber="469">Antenna II</emphasis>
similar to female (
<figureCitation id="C9B92A250B70FFF8B072F906FDEC40DA" box="[530,629,1668,1693]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Fig. 17G</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B0E1F906FD2B40DA" box="[641,690,1668,1692]" captionStart="FIGURE 18" captionStartId="24.[151,250,1910,1932]" captionTargetBox="[158,1429,512,1891]" captionTargetId="figure@24.[151,1436,504,1898]" captionTargetPageId="24" captionText="FIGURE 18. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B, Its lateroventral view. C, Head, lateral view. D–E, Its lateroventral view. F, Antenna I. Scale bars 0.1 mm for A–B, 0.05 mm for C– F." httpUri="https://zenodo.org/record/2615567/files/figure.png" pageId="18" pageNumber="469">18E</figureCitation>
).
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7F92AFC2840A3" blockId="18.[151,1437,912,2017]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7F92AFE8B4086" box="[199,274,1704,1728]" italics="true" pageId="18" pageNumber="469">Limb I</emphasis>
with U-shaped copulatory hook (
<figureCitation id="C9B92A250B70FFF8B0F2F92AFC9F4086" box="[658,774,1704,1729]" captionStart="FIGURE 17" captionStartId="23.[151,250,1565,1587]" captionTargetBox="[170,1423,204,1540]" captionTargetId="figure@23.[160,1432,190,1554]" captionTargetPageId="23" captionText="FIGURE 17. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="18" pageNumber="469">Figs. 17H</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B172F92AFCDF4086" box="[786,838,1704,1728]" captionStart="FIGURE 18" captionStartId="24.[151,250,1910,1932]" captionTargetBox="[158,1429,512,1891]" captionTargetId="figure@24.[151,1436,504,1898]" captionTargetPageId="24" captionText="FIGURE 18. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B, Its lateroventral view. C, Head, lateral view. D–E, Its lateroventral view. F, Antenna I. Scale bars 0.1 mm for A–B, 0.05 mm for C– F." httpUri="https://zenodo.org/record/2615567/files/figure.png" pageId="18" pageNumber="469">18D</figureCitation>
,
<figureCitation id="C9B92A250B70FFF8B132F92AFC184086" box="[850,897,1704,1728]" captionStart="FIGURE 19" captionStartId="25.[151,250,1927,1949]" captionTargetBox="[158,1429,465,1892]" captionTargetId="figure@25.[151,1436,457,1901]" captionTargetPageId="25" captionText="FIGURE 19. Pleuroxus yakutensis sp. nov., adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A–E, Distal portion of postabdomen. F, Male hooks of limbs I. Scale bars 0.05 mm for A, 0.02 mm for B, D, F, 0.01 mm for C, E." httpUri="https://zenodo.org/record/2615569/files/figure.png" pageId="18" pageNumber="469">19F</figureCitation>
). Inner distal lobe with four setae (one of them especially long, three setae shorter). Male seta slender, slightly curved.
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7F972FE4D4117" blockId="18.[151,1437,912,2017]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7F972FE6E414F" bold="true" box="[199,503,1776,1801]" pageId="18" pageNumber="469">Juvenile male of instar II.</emphasis>
<emphasis id="63F6EAB20B70FFF8B39EF972FDF8414E" box="[510,609,1776,1800]" italics="true" pageId="18" pageNumber="469">General.</emphasis>
Proportions of body in general similar with adult male (
<figureCitation id="C9B92A250B70FFF8B6B0F972FAB5414E" box="[1232,1324,1776,1801]" captionStart="FIGURE 20" captionStartId="26.[151,250,1901,1923]" captionTargetBox="[209,1383,200,1874]" captionTargetId="figure@26.[202,1389,193,1882]" captionTargetPageId="26" captionText="FIGURE 20. Pleuroxus yakutensis sp. nov., juvenile male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Juvenile male, lateral view. B, Its lateroventral view. C, Its anterior view. D, Head, lateral view. E, Its lateroventral view. F, Postabdomen, lateral view. G, Postabdominal claws, anterior view. Scale bars 0.1 mm for A–E, 0.05 mm for F, 0.02 for G." httpUri="https://zenodo.org/record/2615571/files/figure.png" pageId="18" pageNumber="469">Figs. 20</figureCitation>
A–G), but postabdomen more thicker, almost conical, without a distal narrowing (
<figureCitation id="C9B92A250B70FFF8B1D3F896FB8E416A" box="[947,1047,1812,1837]" captionStart="FIGURE 20" captionStartId="26.[151,250,1901,1923]" captionTargetBox="[209,1383,200,1874]" captionTargetId="figure@26.[202,1389,193,1882]" captionTargetPageId="26" captionText="FIGURE 20. Pleuroxus yakutensis sp. nov., juvenile male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 02.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Juvenile male, lateral view. B, Its lateroventral view. C, Its anterior view. D, Head, lateral view. E, Its lateroventral view. F, Postabdomen, lateral view. G, Postabdominal claws, anterior view. Scale bars 0.1 mm for A–E, 0.05 mm for F, 0.02 for G." httpUri="https://zenodo.org/record/2615571/files/figure.png" pageId="18" pageNumber="469">Fig. 20F</figureCitation>
). Setae on inner distal lobe of limb I slightly different in length.
</paragraph>
<paragraph id="513D36A00B70FFF8B2A7F8DEFBBF41FB" blockId="18.[151,1437,912,2017]" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7F8DEFF674133" bold="true" box="[199,254,1884,1909]" pageId="18" pageNumber="469">Size.</emphasis>
Maximum length of adult parthenogenetic females up to
<quantity id="967A9B450B70FFF8B1E1F8DEFC7F4132" box="[897,998,1884,1909]" metricMagnitude="-4" metricUnit="m" metricValue="6.3" pageId="18" pageNumber="469" unit="mm" value="0.63">0.63 mm</quantity>
, maximum height
<quantity id="967A9B450B70FFF8B6D6F8DEFA844132" box="[1206,1309,1884,1909]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="18" pageNumber="469" unit="mm" value="0.5">0.50 mm</quantity>
. Maximum length and height of ephippial females subequal to adult parthenogenetic females. Maximum length of adult males up to
<quantity id="967A9B450B70FFF8B2B7F826FEA541FA" box="[215,316,1956,1981]" metricMagnitude="-4" metricUnit="m" metricValue="5.3" pageId="18" pageNumber="469" unit="mm" value="0.53">0.53 mm</quantity>
, height
<quantity id="967A9B450B70FFF8B3F5F826FE6541FA" box="[405,508,1956,1980]" metricMagnitude="-4" metricUnit="m" metricValue="3.3" pageId="18" pageNumber="469" unit="mm" value="0.33">0.33 mm</quantity>
.
<typeStatus id="8E3988020B70FFF8B067F826FDF641FB" box="[519,623,1956,1981]" pageId="18" pageNumber="469" type="holotype">Holotype</typeStatus>
<quantity id="967A9B450B70FFF8B016F826FD4341FA" box="[630,730,1956,1981]" metricMagnitude="-4" metricUnit="m" metricValue="5.2" pageId="18" pageNumber="469" unit="mm" value="0.52">0.52 mm</quantity>
in length,
<quantity id="967A9B450B70FFF8B132F826FC2F41FA" box="[850,950,1956,1980]" metricMagnitude="-4" metricUnit="m" metricValue="3.3" pageId="18" pageNumber="469" unit="mm" value="0.33">0.33 mm</quantity>
in height.
</paragraph>
<paragraph id="513D36A00B70FFF9B2A7F84AFF794693" blockId="18.[151,1437,912,2017]" lastBlockId="19.[151,1437,151,429]" lastPageId="19" lastPageNumber="470" pageId="18" pageNumber="469">
<emphasis id="63F6EAB20B70FFF8B2A7F84AFED441A7" bold="true" box="[199,333,1992,2017]" pageId="18" pageNumber="469">Variability.</emphasis>
No significant variability between investigated individuals was found. Variability was observed in armature of posteroventral angle of valve and concerns both the number of denticles and their shape in females and males.
</paragraph>
</subSubSection>
<subSubSection id="1998652B0B71FFF9B2A7FF5DFC3747EB" pageId="19" pageNumber="470" type="diagnosis">
<paragraph id="513D36A00B71FFF9B2A7FF5DFC904706" blockId="19.[151,1437,151,429]" pageId="19" pageNumber="470">
<emphasis id="63F6EAB20B71FFF9B2A7FF5DFE5746BE" bold="true" box="[199,462,223,248]" pageId="19" pageNumber="470">Differential diagnosis.</emphasis>
<taxonomicName id="96824D230B71FFF9B3B4FF63FDFC46BE" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[468,613,224,248]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="19" pageNumber="470" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B71FFF9B3B4FF63FDFC46BE" box="[468,613,224,248]" italics="true" pageId="19" pageNumber="470">P. yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B71FFF9B00BFF5DFD5C46BE" box="[619,709,223,248]" pageId="19" pageNumber="470" rank="species">
<emphasis id="63F6EAB20B71FFF9B00BFF5DFD5C46BE" bold="true" box="[619,709,223,248]" pageId="19" pageNumber="470">sp. nov.</emphasis>
</taxonomicNameLabel>
differs from its closes congener
<taxonomicName id="96824D230B71FFF9B654FF63FB5146BE" authorityName="O. F. Muller in Du" authorityYear="1973" box="[1076,1224,224,248]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="19" pageNumber="470" phylum="Arthropoda" rank="species" species="trigonellus">
<emphasis id="63F6EAB20B71FFF9B654FF63FB5146BE" box="[1076,1224,224,248]" italics="true" pageId="19" pageNumber="470">P. trigonellus</emphasis>
</taxonomicName>
in: (1) presence of basal peg in male antenna I; (2) distal narrowing of male postabdomen having sparsely located thin setules; (3) terminal aesthetascs on male antenna I of subequal size.
</paragraph>
<paragraph id="513D36A00B71FFF9B2A7FECFFC3747EB" blockId="19.[151,1437,151,429]" pageId="19" pageNumber="470">
From sibling species,
<taxonomicName id="96824D230B71FFF9B3A0FECFFDDF4722" baseAuthorityName="Baird" baseAuthorityYear="1850" box="[448,582,333,356]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="19" pageNumber="470" phylum="Arthropoda" rank="species" species="uncinatus">
<emphasis id="63F6EAB20B71FFF9B3A0FECFFDDF4722" box="[448,582,333,356]" italics="true" pageId="19" pageNumber="470">P. uncinatus</emphasis>
</taxonomicName>
(
<figureCitation id="C9B92A250B71FFF9B03AFECEFD324722" box="[602,683,332,357]" captionStart="FIGURE 21" captionStartId="27.[151,250,1887,1909]" captionTargetBox="[155,1436,224,1851]" captionTargetId="figure@27.[151,1436,205,1860]" captionTargetPageId="27" captionText="FIGURE 21. Pleuroxus uncinatus (Baird, 1850), adult male from the pond in stadium of AZLK factory near Metro Station &quot;Tekstilschiki&quot;, City of Moscow, Russia, coll. 09.10.2000 by A.Y. Sinev. A, Juvenile male, lateral view. B, Labrum. C, Armature of posteroventral portion of valve. D, Postabdomen, lateral view. E, Antenna I. F, Antenna II, proximal portion. G, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615573/files/figure.png" pageId="19" pageNumber="470">Fig. 21</figureCitation>
A–G), both taxa differ based on shape of male postabdomen. In
<taxonomicName id="96824D230B71FFF9B7E7FECFFE9D47C1" baseAuthorityName="Baird" baseAuthorityYear="1850" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="19" pageNumber="470" phylum="Arthropoda" rank="species" species="uncinatus">
<emphasis id="63F6EAB20B71FFF9B7E7FECFFE9D47C1" italics="true" pageId="19" pageNumber="470">P. uncinatus</emphasis>
</taxonomicName>
the distal tube of the postabdomen is short; postabdomen gradually narrowing distally (
<figureCitation id="C9B92A250B71FFF9B6BFFEEDFAD147CE" box="[1247,1352,367,392]" captionStart="FIGURE 21" captionStartId="27.[151,250,1887,1909]" captionTargetBox="[155,1436,224,1851]" captionTargetId="figure@27.[151,1436,205,1860]" captionTargetPageId="27" captionText="FIGURE 21. Pleuroxus uncinatus (Baird, 1850), adult male from the pond in stadium of AZLK factory near Metro Station &quot;Tekstilschiki&quot;, City of Moscow, Russia, coll. 09.10.2000 by A.Y. Sinev. A, Juvenile male, lateral view. B, Labrum. C, Armature of posteroventral portion of valve. D, Postabdomen, lateral view. E, Antenna I. F, Antenna II, proximal portion. G, Distal portion of limb I. Scale bars 0.1 mm." httpUri="https://zenodo.org/record/2615573/files/figure.png" pageId="19" pageNumber="470">Fig. 21D</figureCitation>
). In the
<taxonomicName id="96824D230B71FFF9B2F7FE17FEB247EA" authorityName="O. F. Muller in Du" authorityYear="1973" box="[151,299,404,428]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="19" pageNumber="470" phylum="Arthropoda" rank="species" species="trigonellus">
<emphasis id="63F6EAB20B71FFF9B2F7FE17FEB247EA" box="[151,299,404,428]" italics="true" pageId="19" pageNumber="470">P. trigonellus</emphasis>
</taxonomicName>
species group the distal tube of the postabdomen is long.
</paragraph>
</subSubSection>
<caption id="05FD66280B71FFF9B2F7F8D6FD194180" httpUri="https://zenodo.org/record/2615557/files/figure.png" pageId="19" pageNumber="470" startId="19.[151,250,1876,1898]" targetBox="[158,1429,515,1823]" targetPageId="19">
<paragraph id="513D36A00B71FFF9B2F7F8D6FD194180" blockId="19.[151,1436,1876,1990]" pageId="19" pageNumber="470">
<emphasis id="63F6EAB20B71FFF9B2F7F8D6FEBD412F" bold="true" box="[151,292,1876,1898]" pageId="19" pageNumber="470">FIGURE 13.</emphasis>
<taxonomicName id="96824D230B71FFF9B34EF8D6FD9E412C" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[302,519,1876,1898]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="19" pageNumber="470" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B71FFF9B34EF8D6FD9E412C" box="[302,519,1876,1898]" italics="true" pageId="19" pageNumber="470">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B71FFF9B072F8D6FDFE412F" box="[530,615,1876,1897]" pageId="19" pageNumber="470" rank="species">
<emphasis id="63F6EAB20B71FFF9B072F8D6FDFE412F" bold="true" box="[530,615,1876,1897]" pageId="19" pageNumber="470">sp. nov.</emphasis>
</taxonomicNameLabel>
, parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Postabdomen, lateral view. B, Its distal portion. C, Postabdominal claw. D, Armature of dorsal margin of postabdomen. E, Limb I, inner view. Scale bars 0.05 mm for A, E, 0.02 mm for B–C, 0.01 mm for D.
</paragraph>
</caption>
<caption id="05FD66280B76FFFEB2F7F8F2FDA841A4" httpUri="https://zenodo.org/record/2615559/files/figure.png" pageId="20" pageNumber="471" startId="20.[151,250,1904,1926]" targetBox="[155,1417,212,1879]" targetPageId="20">
<paragraph id="513D36A00B76FFFEB2F7F8F2FDA841A4" blockId="20.[151,1436,1904,2018]" pageId="20" pageNumber="471">
<emphasis id="63F6EAB20B76FFFEB2F7F8F2FEBD41C3" bold="true" box="[151,292,1904,1926]" pageId="20" pageNumber="471">FIGURE 14.</emphasis>
<taxonomicName id="96824D230B76FFFEB34EF8F2FD9E41C0" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[302,519,1904,1926]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="20" pageNumber="471" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B76FFFEB34EF8F2FD9E41C0" box="[302,519,1904,1926]" italics="true" pageId="20" pageNumber="471">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B76FFFEB072F8F2FDFE41C3" box="[530,615,1904,1925]" pageId="20" pageNumber="471" rank="species">
<emphasis id="63F6EAB20B76FFFEB072F8F2FDFE41C3" bold="true" box="[530,615,1904,1925]" pageId="20" pageNumber="471">sp. nov.</emphasis>
</taxonomicNameLabel>
, parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Maxilla. B, Corm of limb I. C, Distal portion of limb I. D, Limb II. E, Limb III. F, Inner-distal portion and gnathobase of limb III. G, Limb IV. H, Gnathobase of limb IV. I, Limb V. Scale bar 0.1 mm.
</paragraph>
</caption>
<caption id="05FD66280B77FFFFB2F7F8D2FD904184" httpUri="https://zenodo.org/record/2615561/files/figure.png" pageId="21" pageNumber="472" startId="21.[151,250,1872,1894]" targetBox="[158,1429,200,1843]" targetPageId="21">
<paragraph id="513D36A00B77FFFFB2F7F8D2FD904184" blockId="21.[151,1436,1872,1986]" pageId="21" pageNumber="472">
<emphasis id="63F6EAB20B77FFFFB2F7F8D2FEBD4123" bold="true" box="[151,292,1872,1894]" pageId="21" pageNumber="472">FIGURE 15.</emphasis>
<taxonomicName id="96824D230B77FFFFB34EF8D2FD9E4120" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[302,519,1872,1894]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="21" pageNumber="472" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B77FFFFB34EF8D2FD9E4120" box="[302,519,1872,1894]" italics="true" pageId="21" pageNumber="472">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B77FFFFB072F8D3FDFE4120" box="[530,615,1873,1894]" pageId="21" pageNumber="472" rank="species">
<emphasis id="63F6EAB20B77FFFFB072F8D3FDFE4120" bold="true" box="[530,615,1873,1894]" pageId="21" pageNumber="472">sp. nov.</emphasis>
</taxonomicNameLabel>
, parthenogenetic female from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Limbs I–V, outer view. B, Limbs I–II, inner view. C, Limb I. D–E, Limb II. F, Scraping setae of limb II. G, Distal portion of limb I. Scale bars 0.05 mm for A–C, E, 0.02 mm for D, G, 0.01 mm for F.
</paragraph>
</caption>
<caption id="05FD66280B74FFFCB2F7F8D5FABE41A1" httpUri="https://zenodo.org/record/2615563/files/figure.png" pageId="22" pageNumber="473" startId="22.[151,250,1879,1901]" targetBox="[232,1359,199,1862]" targetPageId="22">
<paragraph id="513D36A00B74FFFCB2F7F8D5FABE41A1" blockId="22.[151,1436,1879,2023]" pageId="22" pageNumber="473">
<emphasis id="63F6EAB20B74FFFCB2F7F8D5FEB9412A" bold="true" box="[151,288,1879,1901]" pageId="22" pageNumber="473">FIGURE 16.</emphasis>
<taxonomicName id="96824D230B74FFFCB347F8D5FE64412B" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[295,509,1879,1901]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="22" pageNumber="473" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B74FFFCB347F8D5FE64412B" box="[295,509,1879,1901]" italics="true" pageId="22" pageNumber="473">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B74FFFCB064F8D5FDCC412A" box="[516,597,1879,1900]" pageId="22" pageNumber="473" rank="species">
<emphasis id="63F6EAB20B74FFFCB064F8D5FDCC412A" bold="true" box="[516,597,1879,1900]" pageId="22" pageNumber="473">sp. nov.</emphasis>
</taxonomicNameLabel>
, parthenogenetic (A–D) and ephippial (E–H) females from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky., A, Adult parthenogenetic female, laterodorsal view. B, Its anterior view. C, Its anterolateral view. D, Head, anterolateral view. E, Ephippial female, lateral view. F, Ephippium, lateral view. G, Ornamentation and armature of posteroventral portion of valve. H, Ornamentation of posterior portion of valve. Scale bars 0.2 mm for A–C, E, 0.1 mm for D, F, 0.02 mm for G–H.
</paragraph>
</caption>
<caption id="05FD66280B75FFFDB2F7F99FFE8540D6" httpUri="https://zenodo.org/record/2615565/files/figure.png" pageId="23" pageNumber="474" startId="23.[151,250,1565,1587]" targetBox="[170,1423,204,1540]" targetPageId="23">
<paragraph id="513D36A00B75FFFDB2F7F99FFE8540D6" blockId="23.[151,1436,1565,1680]" pageId="23" pageNumber="474">
<emphasis id="63F6EAB20B75FFFDB2F7F99FFEBF4075" bold="true" box="[151,294,1565,1587]" pageId="23" pageNumber="474">FIGURE 17.</emphasis>
<taxonomicName id="96824D230B75FFFDB353F99FFD894075" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[307,528,1565,1587]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="23" pageNumber="474" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B75FFFDB353F99FFD894075" box="[307,528,1565,1587]" italics="true" pageId="23" pageNumber="474">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B75FFFDB07CF99CFDEA4075" box="[540,627,1566,1587]" pageId="23" pageNumber="474" rank="species">
<emphasis id="63F6EAB20B75FFFDB07CF99CFDEA4075" bold="true" box="[540,627,1566,1587]" pageId="23" pageNumber="474">sp. nov.</emphasis>
</taxonomicNameLabel>
, adult male from a small dam lake near Lake Malaya Chabyda, Yakutia Autonomous Republic, Russia, coll. 0 2.09.2010 by A.A. Kotov &amp; A.I. Klimovsky. A, Adult male, lateral view. B–D, Armature of posteroventral portion of valve. E, Postabdomen, lateral view. F, Antenna I. G, Antenna II. H, Distal portion of limb I. Scale bars 0.1 mm.
</paragraph>
</caption>
<subSubSection id="1998652B0B75FFF2B2A7F935FB514706" lastPageId="24" lastPageNumber="475" pageId="23" pageNumber="474" type="distribution">
<paragraph id="513D36A00B75FFFDB2A7F935FDC341EE" blockId="23.[151,1436,1719,2032]" pageId="23" pageNumber="474">
<emphasis id="63F6EAB20B75FFFDB2A7F935FEF94096" bold="true" box="[199,352,1719,1744]" pageId="23" pageNumber="474">Distribution.</emphasis>
Based on original samples we found that this new species is widely distributed in different water bodies of Yakutia Autonomous Republic.
<bibRefCitation id="35134B510B75FFFDB00DF95EFD7840B2" author="Du, N. - S." box="[621,737,1756,1780]" pageId="23" pageNumber="474" refId="ref10821" refString="Du, N. - S. (1973) Cladocera of China. Science Press, Academia Sinica, Peking, 93 pp. [in Chinese]" type="book" year="1973">Du (1973)</bibRefCitation>
and
<bibRefCitation id="35134B510B75FFFDB177F959FB9940B2" author="Chiang, S. C. &amp; Du, N. S." box="[791,1024,1755,1780]" pageId="23" pageNumber="474" refId="ref10764" refString="Chiang, S. C. &amp; Du, N. S. (1979) Freshwater Cladocera. Fauna Sinica. Crustacea. Science Press, Academia Sinica, Peking, 297 pp." type="book" year="1979">Chiang &amp; Du (1979)</bibRefCitation>
clearly illustrated thin setules on the distal tube of the male postabdomen in “
<taxonomicName id="96824D230B75FFFDB03DF882FD6B4151" authorityName="O. F. Muller in Du" authorityYear="1973" box="[605,754,1791,1815]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="23" pageNumber="474" phylum="Arthropoda" rank="species" species="trigonellus">
<emphasis id="63F6EAB20B75FFFDB03DF882FD6B4151" box="[605,754,1791,1815]" italics="true" pageId="23" pageNumber="474">P. trigonellus</emphasis>
</taxonomicName>
” from North
<collectingCountry id="299576300B75FFFDB1ECF97DFC4A415E" box="[908,979,1791,1816]" name="China" pageId="23" pageNumber="474">China</collectingCountry>
. Probably,
<taxonomicName id="96824D230B75FFFDB62FF97DFAA24151" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" box="[1103,1339,1791,1815]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="23" pageNumber="474" phylum="Arthropoda" rank="species" species="yakutensis" status="sp. nov.">
<emphasis id="63F6EAB20B75FFFDB62FF97DFAA24151" box="[1103,1339,1791,1815]" italics="true" pageId="23" pageNumber="474">Pleuroxus yakutensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B75FFFDB722F97DFA05415E" box="[1346,1436,1791,1816]" pageId="23" pageNumber="474" rank="species">
<emphasis id="63F6EAB20B75FFFDB722F97DFA05415E" bold="true" box="[1346,1436,1791,1816]" pageId="23" pageNumber="474">sp. nov.</emphasis>
</taxonomicNameLabel>
may be considered as a common species in water bodies of East part of Northern Eurasia, although these data are just only preliminary.
<taxonomicName id="96824D230B75FFFDB3F8F8CAFDCE4119" authorityName="O. F. Muller in Du" authorityYear="1973" box="[408,599,1863,1888]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="23" pageNumber="474" phylum="Arthropoda" rank="species" species="trigonellus">
<emphasis id="63F6EAB20B75FFFDB3F8F8CAFE324119" box="[408,427,1864,1887]" italics="true" pageId="23" pageNumber="474">P.</emphasis>
cf.
<emphasis id="63F6EAB20B75FFFDB3BEF8C5FDCE4119" box="[478,599,1863,1887]" italics="true" pageId="23" pageNumber="474">trigonellus</emphasis>
</taxonomicName>
is present in
<collectingCountry id="299576300B75FFFDB09BF8CAFCA24119" box="[763,827,1864,1887]" name="Japan" pageId="23" pageNumber="474">Japan</collectingCountry>
(
<bibRefCitation id="35134B510B75FFFDB12CF8C5FC484119" author="Ueno, M." box="[844,977,1863,1887]" pageId="23" pageNumber="474" pagination="1 - 135" refId="ref13478" refString="Ueno, M. (1937) Order Branchiopoda (Class Crustacea). Fauna Nipponica, Tokyo, 9 (1), 1 - 135. [in Japanese]" type="journal article" year="1937">Uéno 1937</bibRefCitation>
), but males are not described from this country.
<bibRefCitation id="35134B510B75FFFDB298F8EEFE1D41C2" author="Yoon, S. M." box="[248,388,1900,1924]" pageId="23" pageNumber="474" pagination="1 - 156" refId="ref13750" refString="Yoon, S. M. (2010) Arthropoda: Branchiopoda: Anostraca, Notostraca, Spinicaudata, Laevicaudata, Ctenopoda, Anomopoda, Haplopoda Branchiopods. Invertebrate fauna of Korea, 21 (2), 1 - 156." type="journal article" year="2010">Yoon (2010)</bibRefCitation>
described &quot;
<taxonomicName id="96824D230B75FFFDB067F8EEFD0241C5" authorityName="O. F. Muller in Du" authorityYear="1973" box="[519,667,1899,1923]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="23" pageNumber="474" phylum="Arthropoda" rank="species" species="trigonellus">
<emphasis id="63F6EAB20B75FFFDB067F8EEFD0241C5" box="[519,667,1899,1923]" italics="true" pageId="23" pageNumber="474">P. trigonellus</emphasis>
</taxonomicName>
&quot; from
<collectingCountry id="299576300B75FFFDB08AF8E9FCE041C5" box="[746,889,1899,1924]" name="South Korea" pageId="23" pageNumber="474">South Korea</collectingCountry>
, but in reality the female from his fig. 78 belongs to
<emphasis id="63F6EAB20B75FFFDB2D4F812FE0D41E1" box="[180,404,1935,1959]" italics="true" pageId="23" pageNumber="474">P. quasidenticulatus</emphasis>
(
<bibRefCitation id="35134B510B75FFFDB3C3F80DFDD741EE" author="Smirnov, N. N." box="[419,590,1935,1960]" pageId="23" pageNumber="474" refId="ref13079" refString="Smirnov, N. N. (1996) Cladocera: the Chydorinae and Sayciinae (Chydoridae) of the world. Guides to the identification of the microinvertebrates of the Continental Waters of the world. Vol. 11. SPB Academic Publishing, Amsterdam, 197 pp." type="book" year="1996">Smirnov, 1996</bibRefCitation>
).
</paragraph>
<paragraph id="513D36A00B75FFF2B2A7F831FB514706" blockId="23.[151,1436,1719,2032]" lastBlockId="24.[151,1436,151,464]" lastPageId="24" lastPageNumber="475" pageId="23" pageNumber="474">
<emphasis id="63F6EAB20B75FFFDB2A7F831FE4B418A" bold="true" box="[199,466,1971,1996]" pageId="23" pageNumber="474">Taxonomic comments.</emphasis>
No
<taxonomicName id="96824D230B75FFFDB063F831FDE5418D" authorityName="O. F. Muller in Du" authorityYear="1973" box="[515,636,1971,1995]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="23" pageNumber="474" phylum="Arthropoda" rank="species" species="trigonellus">
<emphasis id="63F6EAB20B75FFFDB063F831FDE5418D" box="[515,636,1971,1995]" italics="true" pageId="23" pageNumber="474">trigonellus</emphasis>
</taxonomicName>
-like taxa were described from
<collectingCountry id="299576300B75FFFDB1BDF836FBD1418A" box="[989,1096,1971,1996]" name="China" pageId="23" pageNumber="474">East Asia</collectingCountry>
to date (
<bibRefCitation id="35134B510B75FFFDB6CAF831FAD7418A" author="Smirnov, N. N." box="[1194,1358,1971,1996]" pageId="23" pageNumber="474" pagination="1 - 531" refId="ref13042" refString="Smirnov, N. N. (1971) Chydoridae fauni mira. Fauna SSSR. Rakoobraznie, 1 (2), 1 - 531. [Chydoridae of the world fauna, in Russian]" type="book chapter" year="1971">Smirnov 1971</bibRefCitation>
,
<bibRefCitation id="35134B510B75FFFDB73BF831FA0D418A" author="Smirnov, N. N." box="[1371,1428,1971,1996]" pageId="23" pageNumber="474" refId="ref13079" refString="Smirnov, N. N. (1996) Cladocera: the Chydorinae and Sayciinae (Chydoridae) of the world. Guides to the identification of the microinvertebrates of the Continental Waters of the world. Vol. 11. SPB Academic Publishing, Amsterdam, 197 pp." type="book" year="1996">1996</bibRefCitation>
) except of
<emphasis id="63F6EAB20B75FFFDB365F85AFEC241A9" box="[261,347,2007,2031]" italics="true" pageId="23" pageNumber="474">P. csikii</emphasis>
Daday, 1901 from &quot;Sibiria: Abakansk&quot; or &quot;Abakanszk&quot;. This is most likely the Abakan River (or town of Abakan?) in the Yenisey basin,
<collectingRegion id="9346F8420B7AFFF2B039FF15FD5546F6" box="[601,716,151,176]" country="Russia" name="Khakasiya" pageId="24" pageNumber="475">Khakassia</collectingRegion>
Autonomous Republic of
<collectingCountry id="299576300B7AFFF2B196FF15FB4B46F6" box="[1014,1234,151,176]" name="Russia" pageId="24" pageNumber="475">Russian Federation</collectingCountry>
. Specimens in the slide of E. Daday (
<typeStatus id="8E3988020B7AFFF2B307FF3EFE564693" box="[359,463,188,213]" pageId="24" pageNumber="475" type="lectotype">lectotype</typeStatus>
and
<typeStatus id="8E3988020B7AFFF2B065FF3EFD3E4693" box="[517,679,188,213]" pageId="24" pageNumber="475" type="paralectotype">paralectotypes</typeStatus>
selected by
<bibRefCitation id="35134B510B7AFFF2B151FF3EFBB84692" author="Forro, L. &amp; Frey, D. G." box="[817,1057,188,213]" pageId="24" pageNumber="475" pagination="91 - 132" refId="ref10919" refString="Forro, L. &amp; Frey, D. G. (1982) Cladocera taxa described by E. Daday, together with a catalogue of pertinent material in the Hungarian Natural History Museum. Miscellanea Zoologica Hungarica, 1, 91 - 132." type="journal article" year="1982">Forró &amp; Frey (1982))</bibRefCitation>
are in bad state and not helpful to clarify the taxon’s status. But according to a well-developed labral keel this taxon is closer to
<taxonomicName id="96824D230B7AFFF2B6A3FF63FAC046BE" authority="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov, 2018" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" baseAuthorityName="O. F. Muller" baseAuthorityYear="1776" box="[1219,1369,224,248]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="24" pageNumber="475" phylum="Arthropoda" rank="species" sensu="stricto" species="trigonellus">
<emphasis id="63F6EAB20B7AFFF2B6A3FF63FAC046BE" box="[1219,1369,224,248]" italics="true" pageId="24" pageNumber="475">P. trigonellus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="78C557C90B7AFFF2B702FF62FA0E46B1" box="[1378,1431,224,247]" pageId="24" pageNumber="475" sensu="stricto">s.str.</taxonomicNameLabel>
, moreover the specimen in Daday's figure 9 has disproportionally long distal postanal teeth (as compared with more proximal teeth), it could be even a separate taxon, or subject to Daday’s specific drawing styles.
</paragraph>
</subSubSection>
<subSubSection id="1998652B0B7AFFF2B2A7FECEFB804789" pageId="24" pageNumber="475" type="reference_group">
<paragraph id="513D36A00B7AFFF2B2A7FECEFB804789" blockId="24.[151,1436,151,464]" pageId="24" pageNumber="475">
<taxonomicName id="96824D230B7AFFF2B2A7FECEFD434722" ID-CoL="4KFCC" authority="Brehm, 1933" authorityName="Brehm" authorityYear="1933" box="[199,730,332,357]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="24" pageNumber="475" phylum="Arthropoda" rank="subSpecies" species="trigonellus" subSpecies="brevicornis">
<emphasis id="63F6EAB20B7AFFF2B2A7FECEFDA74722" box="[199,574,332,356]" italics="true" pageId="24" pageNumber="475">Pleuroxus trigonellus brevicornis</emphasis>
<bibRefCitation id="35134B510B7AFFF2B026FECEFD434722" author="Brehm, V." box="[582,730,332,357]" pageId="24" pageNumber="475" pagination="631 - 771" refId="ref10631" refString="Brehm, V. (1933) Die Cladoceren der Deutschen Limnologischen Sunda-Expedition. Archiv fur Hydrobiologie, Supplement, 11 (4), 631 - 771." type="journal article" year="1933">Brehm, 1933</bibRefCitation>
</taxonomicName>
was described from Sumatra (
<bibRefCitation id="35134B510B7AFFF2B653FECEFB5B4722" author="Brehm, V." box="[1075,1218,332,357]" pageId="24" pageNumber="475" pagination="631 - 771" refId="ref10631" refString="Brehm, V. (1933) Die Cladoceren der Deutschen Limnologischen Sunda-Expedition. Archiv fur Hydrobiologie, Supplement, 11 (4), 631 - 771." type="journal article" year="1933">Brehm 1933</bibRefCitation>
) and then recorded from
<collectingCountry id="299576300B7AFFF2B2B4FEEDFE8E47CE" box="[212,279,367,392]" name="China" pageId="24" pageNumber="475">China</collectingCountry>
(see in
<bibRefCitation id="35134B510B7AFFF2B30DFEEDFD9847CE" author="Ji, G. H. &amp; Xiang, X. F. &amp; Chen, S. Z. &amp; Yu, G. L. &amp; Kotov, A. A. &amp; Dumont, H. J." box="[365,513,367,392]" pageId="24" pageNumber="475" pagination="241 - 269" refId="ref11392" refString="Ji, G. H., Xiang, X. F., Chen, S. Z., Yu, G. L., Kotov, A. A. &amp; Dumont, H. J. (2015) Annotated Checklist of Chinese Cladocera (Crustacea: Branchiopoda). Part II. Order Anomopoda (families Macrothricidae, Eurycercidae and Chydoridae). Zootaxa, 4044 (2), 241 - 269. http: // doi. org / 10.11646 / zootaxa. 4044.2.4" type="journal article" year="2015">
Ji
<emphasis id="63F6EAB20B7AFFF2B3E6FEF3FE2747CE" box="[390,446,368,392]" italics="true" pageId="24" pageNumber="475">et al.</emphasis>
2015
</bibRefCitation>
). Most probably, it is not member of the
<taxonomicName id="96824D230B7AFFF2B1A4FEF2FBA447CE" ID-CoL="77RHV" authorityName="Garibian &amp; Neretina &amp; Klimovsky &amp; Kotov" authorityYear="2018" baseAuthorityName="O. F. Muller" baseAuthorityYear="1776" box="[964,1085,368,392]" class="Branchiopoda" family="Chydoridae" genus="Pleuroxus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="24" pageNumber="475" phylum="Arthropoda" rank="species" species="trigonellus">
<emphasis id="63F6EAB20B7AFFF2B1A4FEF2FBA447CE" box="[964,1085,368,392]" italics="true" pageId="24" pageNumber="475">trigonellus</emphasis>
</taxonomicName>
-group due to it relatively small postanal teeth, moreover, a specimen from
<bibRefCitation id="35134B510B7AFFF2B0E0FE16FCB647EA" author="Brehm, V." box="[640,815,404,429]" pageId="24" pageNumber="475" pagination="631 - 771" refId="ref10631" refString="Brehm, V. (1933) Die Cladoceren der Deutschen Limnologischen Sunda-Expedition. Archiv fur Hydrobiologie, Supplement, 11 (4), 631 - 771." type="journal article" year="1933">Brehm's (1933)</bibRefCitation>
fig. 36 has a really long posterior margin (its length is about half of body height), and it could be a member of
<emphasis id="63F6EAB20B7AFFF2B16AFE3AFCF04796" box="[778,873,440,464]" italics="true" pageId="24" pageNumber="475">Alonella</emphasis>
, not
<emphasis id="63F6EAB20B7AFFF2B1C2FE3AFB8B4796" box="[930,1042,440,464]" italics="true" pageId="24" pageNumber="475">Pleuroxus</emphasis>
.
</paragraph>
</subSubSection>
</treatment>
</document>
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