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<mods:title id="EB4697ACC5770F89800AAAEDFEB00E72">A new species of the genus Ovalona Van Damme &amp; Dumont, 2008 (Cladocera: Anomopoda: Chydoridae) from South-East Asia, related to Australian Ovalona archeri (Sars, 1888)</mods:title>
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<mods:namePart id="C3F24D449A3D446899572DDEB85FD1FB">Sinev, Artem Y.</mods:namePart>
<mods:affiliation id="D813CAAE5B2A8849C727D7077EB6A8AA">Department of Invertebrate Zoology, Biological Faculty, M. V. Lomonosov Moscow State University, Leninskie Gory 1 - 12, Moscow 119991, Russia</mods:affiliation>
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<mods:namePart id="806E7AB817950E466E2173C5BC697FAB">Dadykin, Ivan A.</mods:namePart>
<mods:affiliation id="4D834D290F281A3E89A362075E8C889D">A. N. Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences, Leninsky Prospect 33, Moscow 119071, Russia</mods:affiliation>
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<mods:namePart id="660DE55BB63EB2036D7B31125318D3BC">Đ ịnh, Nguyên</mods:namePart>
<mods:affiliation id="285E660D2C5F6BE3BE864AF0B7129BD0">Southern Branch of Joint Vietnam-Russian Tropical Science and Technology Research Center, No. 3, 3 / 2 Street, District 10, Ho Chi Minh City, Vietnam</mods:affiliation>
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<emphasis id="2F9F3E093C08FF87F8F01266FE54F827" bold="true" box="[151,473,1907,1934]" pageId="1" pageNumber="274">
<taxonomicName id="DAEB99983C08FF87F8F01266FEF9F827" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[151,372,1907,1934]" class="Branchiopoda" family="Chydoridae" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="1" pageNumber="274" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C08FF87F8F01266FEF9F827" bold="true" box="[151,372,1907,1934]" italics="true" pageId="1" pageNumber="274">Ovalona garibiani</emphasis>
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<paragraph id="1D54E21B3C08FF87F8F0128DFE9FF81B" blockId="1.[151,473,1907,1970]" box="[151,274,1944,1970]" pageId="1" pageNumber="274">
(
<figureCitation id="85D0FE9E3C08FF87F8F8128DFE84F81B" box="[159,265,1944,1970]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStartId-0="3.[151,250,1866,1890]" captionStartId-1="4.[151,250,689,713]" captionStartId-2="5.[151,250,1764,1788]" captionTargetBox-0="[165,1431,187,1826]" captionTargetBox-1="[179,1412,199,645]" captionTargetBox-2="[164,1428,432,1741]" captionTargetId-0="figure-17@3.[151,1436,181,1842]" captionTargetId-1="figure-29@4.[151,1435,181,665]" captionTargetId-2="figure-125@5.[151,1436,417,1741]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="5" captionText-0="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." captionText-1="FIGURE 2. Ovalona garibiani sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality), parthenogenetic female.A–B, lateral view." captionText-2="FIGURE 3. Ovalona garibiani.sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females.A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, Ovalona archeri (Sars, 1888), antenna of adult parthenogenetic female (after Sinev 2002)." figureDoi-0="http://doi.org/10.5281/zenodo.11231646" figureDoi-1="http://doi.org/10.5281/zenodo.11231649" figureDoi-2="http://doi.org/10.5281/zenodo.11231653" httpUri-0="https://zenodo.org/record/11231646/files/figure.png" httpUri-1="https://zenodo.org/record/11231649/files/figure.png" httpUri-2="https://zenodo.org/record/11231653/files/figure.png" pageId="1" pageNumber="274">Figs. 1–3</figureCitation>
)
</paragraph>
<paragraph id="1D54E21B3C08FF87F8F012C9FAC6F85C" blockId="1.[151,1355,2012,2037]" box="[151,1355,2012,2037]" pageId="1" pageNumber="274">
<bibRefCitation id="797A9FEA3C08FF87F8F012C9FEE1F85C" author="Idris, B. A. G." box="[151,364,2012,2037]" pageId="1" pageNumber="274" refId="ref5499" refString="Idris, B. A. G. (1983) Freshwater zooplankton of Malaysia (Crustacea: Cladocera). Perenbit University, Pertanian, 153 pp." type="book" year="1983">Idris, 1983: 110–113</bibRefCitation>
, fig. 42 (
<taxonomicName id="DAEB99983C08FF87F9A012C9FDF1F85D" authorityName="Stenroos" authorityYear="1897" box="[455,636,2012,2036]" class="Branchiopoda" genus="Alona" isUncertain="true" kingdom="Animalia" order="Diplostraca" pageId="1" pageNumber="274" phylum="Arthropoda" rank="species" species="karelica">
<emphasis id="2F9F3E093C08FF87F9A012C9FD89F85D" box="[455,516,2012,2036]" italics="true" pageId="1" pageNumber="274">Alona</emphasis>
cf. 
<emphasis id="2F9F3E093C08FF87FA4D12C9FDF1F85D" box="[554,636,2012,2036]" italics="true" pageId="1" pageNumber="274">karelica</emphasis>
</taxonomicName>
); 
<bibRefCitation id="797A9FEA3C08FF87FAF512C9FBC3F85C" author="Maiphae, S. &amp; Pholpunthin, P. &amp; Dumont, H. J." box="[658,1102,2012,2037]" pageId="1" pageNumber="274" pagination="33 - 43" refId="ref6071" refString="Maiphae, S., Pholpunthin, P. &amp; Dumont, H. J. (2008) Taxon richness and biogeography of the Cladocera (Crustacea: Ctenopoda, Anomopoda) of Thailand. Annales de Limnologie, 44, 33 - 43." type="journal article" year="2008">Maiphae, Pholpunthin &amp; Dumont, 2008: 38</bibRefCitation>
, fig 4–5 (
<taxonomicName id="DAEB99983C08FF87FCD712C9FAB0F85D" authorityName="Sars" authorityYear="1888" box="[1200,1341,2012,2036]" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="1" pageNumber="274" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C08FF87FCD712C9FAB0F85D" box="[1200,1341,2012,2036]" italics="true" pageId="1" pageNumber="274">Alona archeri</emphasis>
</taxonomicName>
).
</paragraph>
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<subSubSection id="55F1B1903C0BFF84F8F01582FE1AFF7C" pageId="2" pageNumber="275" type="etymology">
<paragraph id="1D54E21B3C0BFF84F8F01582FE1AFF7C" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<emphasis id="2F9F3E093C0BFF84F8F01582FE95FF18" bold="true" box="[151,280,151,177]" pageId="2" pageNumber="275">Etymology</emphasis>
. The species is named after its collector, our friend and colleague, Russian cladocerologist Dr. Petr Grigorievich Garibian.
</paragraph>
</subSubSection>
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<emphasis id="2F9F3E093C0BFF84F8A015CAFEE7FF51" bold="true" box="[199,362,222,249]" pageId="2" pageNumber="275">Type locality.</emphasis>
<materialsCitation id="AD83E8463C0BFF84F91315CAFB6CFEB4" collectingDate="2023-04-09" collectorName="P. G. Garibian &amp; A. A. Kotov." country="Vietnam" latitude="10.690834" location="Water" longLatPrecision="1" longitude="105.55001" municipality="Tram Chin National Park" pageId="2" pageNumber="275" specimenCount="1" stateProvince="Dong Thap">
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hyacinth bed at channel in 
<collectingMunicipality id="FD3078613C0BFF84FB6415CAFBA0FF50" box="[771,1069,223,249]" pageId="2" pageNumber="275">Tràm Chin National Park</collectingMunicipality>
, 
<collectingRegion id="DF2F2CF93C0BFF84FC5B15CAFAA1FF50" box="[1084,1324,223,249]" country="Vietnam" name="Dong Thap" pageId="2" pageNumber="275">Dong Thap province</collectingRegion>
, 
<collectingCountry id="65FCA28B3C0BFF84FD5A15CAFA11FF50" box="[1341,1436,223,249]" name="Vietnam" pageId="2" pageNumber="275">Vietnam</collectingCountry>
(
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, 
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), 
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<collectingDate id="79113D333C0BFF84F9921416FD0AFEB4" box="[501,647,259,285]" pageId="2" pageNumber="275" value="2023-04-09">9 April 2023</collectingDate>
</date>
. 
<collectorName id="B01E87CD3C0BFF84FAF61416FD7DFEB4" box="[657,752,259,285]" pageId="2" pageNumber="275">Material</collectorName>
collected by 
<collectorName id="B01E87CD3C0BFF84FBE11416FB90FEB4" box="[902,1053,259,285]" pageId="2" pageNumber="275">P.G. Garibian</collectorName>
and 
<collectorName id="B01E87CD3C0BFF84FC351416FB6CFEB4" box="[1106,1249,259,285]" pageId="2" pageNumber="275">A. A. Kotov.</collectorName>
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</paragraph>
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<emphasis id="2F9F3E093C0BFF84F8A01432FEFBFEE9" bold="true" box="[199,374,294,321]" pageId="2" pageNumber="275">Type material.</emphasis>
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<typeStatus id="C2505CB93C0BFF84F9191432FE60FEE8" box="[382,493,295,321]" pageId="2" pageNumber="275" type="holotype">Holotype</typeStatus>
.
</emphasis>
Parthenogenetic female from the type locality, deposited at Zoological Museum of M. 
<collectionCode id="7BFA7ADE3C0BFF84F8D1145EFF41FECC" box="[182,204,331,357]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="2" pageNumber="275" type="Museum">V</collectionCode>
. 
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<collectingRegion id="DF2F2CF93C0BFF84F905145EFD8FFECC" box="[354,514,331,357]" country="Russia" name="Moscow" pageId="2" pageNumber="275">Moscow State</collectingRegion>
<collectingMunicipality id="FD3078613C0BFF84FA6E145EFD0DFECC" box="[521,640,331,357]" pageId="2" pageNumber="275">University</collectingMunicipality>
, 
<location id="1834B4C03C0BFF84FAEC145EFD20FECC" LSID="urn:lsid:plazi:treatment:9542530D3C08FF80F8F01266FA18F9C0:1834B4C03C0BFF84FAEC145EFD20FECC" box="[651,685,331,357]" county="Lomonosov" municipality="University" name="Ml" pageId="2" pageNumber="275" stateProvince="Moscow">Ml</location>
–272.
</materialsCitation>
</paragraph>
<paragraph id="1D54E21B3C0BFF84F8A0147AFD20FE04" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<materialsCitation id="AD83E8463C0BFF84F8A0147AFD24FE04" collectionCode="V" county="Lomonosov" location="Ml" municipality="University" pageId="2" pageNumber="275" specimenCount="1" stateProvince="Moscow" typeStatus="paratype">
<emphasis id="2F9F3E093C0BFF84F8A0147AFECBFE20" bold="true" box="[199,326,367,393]" pageId="2" pageNumber="275">
<typeStatus id="C2505CB93C0BFF84F8A0147AFECCFE20" box="[199,321,367,393]" pageId="2" pageNumber="275" type="paratype">Paratypes</typeStatus>
.
</emphasis>
6 parthenogenetic females from the type locality, deposited at Zoological Museum of M. 
<collectionCode id="7BFA7ADE3C0BFF84FDE4147AFA14FE20" box="[1411,1433,367,393]" country="Canada" lsid="urn:lsid:biocol.org:col:13946" name="Royal British Columbia Museum - Herbarium" pageId="2" pageNumber="275" type="Museum">V</collectionCode>
. 
<collectingCounty id="F4359A973C0BFF84F8F01486FE90FE04" box="[151,285,403,429]" pageId="2" pageNumber="275">Lomonosov</collectingCounty>
<collectingRegion id="DF2F2CF93C0BFF84F9431486FE4EFE04" box="[292,451,403,429]" country="Russia" name="Moscow" pageId="2" pageNumber="275">Moscow State</collectingRegion>
<collectingMunicipality id="FD3078613C0BFF84F9AD1486FDCCFE04" box="[458,577,403,429]" pageId="2" pageNumber="275">University</collectingMunicipality>
, 
<location id="1834B4C03C0BFF84FA2A1486FDE2FE04" LSID="urn:lsid:plazi:treatment:9542530D3C08FF80F8F01266FA18F9C0:1834B4C03C0BFF84FA2A1486FDE2FE04" box="[589,623,403,429]" county="Lomonosov" municipality="University" name="Ml" pageId="2" pageNumber="275" stateProvince="Moscow">Ml</location>
–273
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.
</paragraph>
<paragraph id="1D54E21B3C0BFF84F8A014A3FD98FD94" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<materialsCitation id="AD83E8463C0BFF84F8A014A3FD98FD94" collectingDate="2023-04-09" collectorName="P. G. Garibian &amp; A. A. Kotov." country="Vietnam" county="Tram Chin National Park" latitude="10.685221" location="Several" longLatPrecision="1" longitude="105.55359" municipality="Few" pageId="2" pageNumber="275" specimenCount="2" stateProvince="Dong Thap">
<emphasis id="2F9F3E093C0BFF84F8A014A3FE57FE79" bold="true" box="[199,474,438,464]" pageId="2" pageNumber="275">Other material studied.</emphasis>
<location id="1834B4C03C0BFF84F9B914A2FDBFFE78" LSID="urn:lsid:plazi:treatment:9542530D3C08FF80F8F01266FA18F9C0:1834B4C03C0BFF84F9B914A2FDBFFE78" box="[478,562,439,465]" country="Vietnam" county="Tram Chin National Park" latitude="10.685221" longLatPrecision="1" longitude="105.55359" municipality="Few" name="Several" pageId="2" pageNumber="275" stateProvince="Dong Thap">Several</location>
parthenogenetic females from the type locality were dissected and subsequently not preserved. 
<collectingMunicipality id="FD3078613C0BFF84F92214CEFEF8FE5C" box="[325,373,475,501]" pageId="2" pageNumber="275">Few</collectingMunicipality>
parthenogenetic females from channels at 
<collectingCounty id="F4359A973C0BFF84FB0A14CEFB1AFE5C" box="[877,1175,475,501]" pageId="2" pageNumber="275">Tràm Chin National Park</collectingCounty>
, 
<collectingRegion id="DF2F2CF93C0BFF84FCC114CEFA15FE5C" box="[1190,1432,475,501]" country="Vietnam" name="Dong Thap" pageId="2" pageNumber="275">Dong Thap province</collectingRegion>
, 
<collectingCountry id="65FCA28B3C0BFF84F8F014EAFF7BFDB0" box="[151,246,511,537]" name="Vietnam" pageId="2" pageNumber="275">Vietnam</collectingCountry>
(at localities 
<geoCoordinate id="78DF84DC3C0BFF84F9EC14EBFD91FDB0" box="[395,540,510,537]" degrees="10.681685" direction="north" orientation="latitude" pageId="2" pageNumber="275" precision="1" value="10.681685">10.681685 N</geoCoordinate>
<geoCoordinate id="78DF84DC3C0BFF84FA4514EBFD33FDB0" box="[546,702,510,537]" degrees="105.555709" direction="east" orientation="longitude" pageId="2" pageNumber="275" precision="1" value="105.55571">105.555709 E</geoCoordinate>
and 
<geoCoordinate id="78DF84DC3C0BFF84FA9514EBFC0BFDB0" box="[754,902,510,537]" degrees="10.685221" direction="north" orientation="latitude" pageId="2" pageNumber="275" precision="1" value="10.685221">10.685221 N</geoCoordinate>
, 
<geoCoordinate id="78DF84DC3C0BFF84FBF614EBFBA3FDB0" box="[913,1070,510,537]" degrees="105.553588" direction="east" orientation="longitude" pageId="2" pageNumber="275" precision="1" value="105.55359">105.553588 E</geoCoordinate>
) 
<date id="6955C4DB3C0BFF84FC5B14EAFB46FDB0" box="[1084,1227,511,537]" pageId="2" pageNumber="275" value="2023-04-09">
<collectingDate id="79113D333C0BFF84FC5B14EAFB46FDB0" box="[1084,1227,511,537]" pageId="2" pageNumber="275" value="2023-04-09">9 April 2023</collectingDate>
</date>
; material collected by 
<collectorName id="B01E87CD3C0BFF84F8DD1736FEDFFD94" box="[186,338,547,573]" pageId="2" pageNumber="275">P.G. Garibian</collectorName>
and 
<collectorName id="B01E87CD3C0BFF84F9E01736FD98FD94" box="[391,533,547,573]" pageId="2" pageNumber="275">A. A. Kotov.</collectorName>
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="55F1B1903C0BFF82F8A01753FCF0F8E3" lastPageId="4" lastPageNumber="277" pageId="2" pageNumber="275" type="description">
<paragraph id="1D54E21B3C0BFF84F8A01753FDDFFC28" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<emphasis id="2F9F3E093C0BFF84F8A01753FDF3FDC9" bold="true" box="[199,638,582,608]" pageId="2" pageNumber="275">Description. Parthenogenetic female.</emphasis>
<emphasis id="2F9F3E093C0BFF84FAE31752FD65FDC8" box="[644,744,583,609]" italics="true" pageId="2" pageNumber="275">General.</emphasis>
In lateral view body regularly-ovoid, of moderate height (
<figureCitation id="85D0FE9E3C0BFF84FD081752FF51FD2C" captionStart="FIGURE 1" captionStartId="3.[151,250,1866,1890]" captionTargetBox="[165,1431,187,1826]" captionTargetId="figure-17@3.[151,1436,181,1842]" captionTargetPageId="3" captionText="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="2" pageNumber="275">Fig. 1A–B</figureCitation>
, 
<figureCitation id="85D0FE9E3C0BFF84F880177EFEA0FD2C" box="[231,301,619,645]" captionStart="FIGURE 2" captionStartId="4.[151,250,689,713]" captionTargetBox="[179,1412,199,645]" captionTargetId="figure-29@4.[151,1435,181,665]" captionTargetPageId="4" captionText="FIGURE 2. Ovalona garibiani sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality), parthenogenetic female.A–B, lateral view." figureDoi="http://doi.org/10.5281/zenodo.11231649" httpUri="https://zenodo.org/record/11231649/files/figure.png" pageId="2" pageNumber="275">2A–B</figureCitation>
), maximum height at middle of body, in adults height/length ratio 0.65–0.70. Carapace evenly colored in light yellow to almost transparent. Dorsal margin uniformly curved; postero-dorsal and postero-ventral angles broadly rounded; posterior margin uniformly curved; ventral margin almost straight; antero-ventral angle rounded. Body strongly compressed laterally. Valves with tubercular sculpture in all studied specimens; specimens from 
<collectingCountry id="65FCA28B3C0BFF84F8F017EEFE8DFCBC" box="[151,256,763,789]" name="Malaysia" pageId="2" pageNumber="275">Malaysia</collectingCountry>
, reported by 
<bibRefCitation id="797A9FEA3C0BFF84F9FD17EEFDAEFCBC" author="Idris, B. A. G." box="[410,547,763,789]" pageId="2" pageNumber="275" refId="ref5499" refString="Idris, B. A. G. (1983) Freshwater zooplankton of Malaysia (Crustacea: Cladocera). Perenbit University, Pertanian, 153 pp." type="book" year="1983">Idris (1983)</bibRefCitation>
, have oblique valves. Ventral margin (
<figureCitation id="85D0FE9E3C0BFF84FBB817EEFBBBFCBC" box="[991,1078,763,789]" captionStart="FIGURE 1" captionStartId="3.[151,250,1866,1890]" captionTargetBox="[165,1431,187,1826]" captionTargetId="figure-17@3.[151,1436,181,1842]" captionTargetPageId="3" captionText="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="2" pageNumber="275">Fig. 1C</figureCitation>
) with about 35 setae, about 10 anterior setae long, increasing in length distally; next 10 setae short, posterior setae of moderate length. Postero-ventral angle (
<figureCitation id="85D0FE9E3C0BFF84F95F1656FE02FCF4" box="[312,399,835,861]" captionStart="FIGURE 1" captionStartId="3.[151,250,1866,1890]" captionTargetBox="[165,1431,187,1826]" captionTargetId="figure-17@3.[151,1436,181,1842]" captionTargetPageId="3" captionText="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="2" pageNumber="275">Fig. 1D</figureCitation>
) with about 100 short setules not organized in groups. A row of very small setules along the posterior margin on inner side of valve.
</paragraph>
<paragraph id="1D54E21B3C0BFF84F8A0169EFF5CFBD4" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<emphasis id="2F9F3E093C0BFF84F8A0169EFE89FC0C" box="[199,260,907,933]" italics="true" pageId="2" pageNumber="275">Head</emphasis>
of moderate size, triangular-round in lateral view, rostrum short, pointing downward. Eye two times larger than ocellus. Distance from tip of rostrum to ocellus in adults slightly greater than that between ocellus and eye. Head shield with a tubercular sculpture, its shape typical of the genus; rostrum short, broadly rounded; posterior margin of head shield broadly rounded, slightly wavy in some specimens. Three major head pores (
<figureCitation id="85D0FE9E3C0BFF84FC8D16E2FAD6FBB8" box="[1258,1371,1015,1041]" captionStart="FIGURE 1" captionStartId="3.[151,250,1866,1890]" captionTargetBox="[165,1431,187,1826]" captionTargetId="figure-17@3.[151,1436,181,1842]" captionTargetPageId="3" captionText="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="2" pageNumber="275">Fig. 1E–F</figureCitation>
) with very narrow connection between them, middle pore smaller than other two pores; PP about 0.3–0.4 IP. Lateral head pores minute, located at about 0.7–0.8 IP distance from midline, at the level between anterior and median main head pore.
</paragraph>
<paragraph id="1D54E21B3C0BFF84F8A01192FBD1FB6C" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<emphasis id="2F9F3E093C0BFF84F8A01192FEADFB08" box="[199,288,1159,1185]" italics="true" pageId="2" pageNumber="275">Labrum</emphasis>
(
<figureCitation id="85D0FE9E3C0BFF84F9571192FE2AFB08" box="[304,423,1159,1185]" captionStart="FIGURE 1" captionStartId="3.[151,250,1866,1890]" captionTargetBox="[165,1431,187,1826]" captionTargetId="figure-17@3.[151,1436,181,1842]" captionTargetPageId="3" captionText="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="2" pageNumber="275">Fig. 1G–H</figureCitation>
) of moderate size, labral keel wide (height about 1.2–1.3 widths), with blunt apex; anterior margin of keel almost straight in its middle part, posterior margin without any setulae.
</paragraph>
<paragraph id="1D54E21B3C0BFF84F8A011DAFAAEF9A0" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<emphasis id="2F9F3E093C0BFF84F8A011DAFED2FB40" box="[199,351,1231,1257]" italics="true" pageId="2" pageNumber="275">Postabdomen</emphasis>
(
<figureCitation id="85D0FE9E3C0BFF84F91511DAFE71FB40" box="[370,508,1231,1257]" captionStart="FIGURE 1" captionStartId="3.[151,250,1866,1890]" captionTargetBox="[165,1431,187,1826]" captionTargetId="figure-17@3.[151,1436,181,1842]" captionTargetPageId="3" captionText="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="2" pageNumber="275">Fig. 1I–J, L</figureCitation>
) narrow, with parallel margins and strongly prominent dorso-distal angle with a rounded tip, length about 2.5–2.8 height. Ventral margin weakly convex. Distal margin clearly convex. Dorsal margin with distal part 1.5 times longer than preanal one; postanal and anal portions of similar length. Postanal portion of distal margin straight, anal portion concave. Preanal angle well-defined, postanal angle weakly defined. Postabdomen with 3–4 large marginal denticles in distal part, followed by five-six much smaller denticles; length of largest denticles about 1.5 widths of postabdominal claw base. Nine to ten narrow groups of lateral setulae, distalmost setula of each fascicle longer and thicker than others, length of longest distalmost setulae close to 1.5 widths of claw base; distance between groups in postanal portion greater or equal to the width of groups. Postabdominal claw slightly longer than preanal portion of postabdomen. Basal spine straight, thin, about 0.2 length of claw.
</paragraph>
<paragraph id="1D54E21B3C0BFF84F8A01306FAC5F9DC" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<emphasis id="2F9F3E093C0BFF84F8A01306FEB4F984" box="[199,313,1555,1581]" italics="true" pageId="2" pageNumber="275">Antennule</emphasis>
(
<figureCitation id="85D0FE9E3C0BFF84F92D1306FE2FF984" box="[330,418,1555,1581]" captionStart="FIGURE 1" captionStartId="3.[151,250,1866,1890]" captionTargetBox="[165,1431,187,1826]" captionTargetId="figure-17@3.[151,1436,181,1842]" captionTargetPageId="3" captionText="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="2" pageNumber="275">Fig. 1K</figureCitation>
) of moderate size, length about 2.5 widths, with four clusters of short setulae at anterior face. Antennular sensory seta slender, about 2/3 length of antennula, arising at 2/3 distance from the base. Nine terminal aesthetascs, the longest two about 2/3 length of antennule, others of about 1/3 length of antennule.
</paragraph>
<paragraph id="1D54E21B3C0BFF84F8A0136AFAECF8D8" blockId="2.[151,1437,151,1905]" pageId="2" pageNumber="275">
<emphasis id="2F9F3E093C0BFF84F8A0136AFEA9F930" box="[199,292,1663,1689]" italics="true" pageId="2" pageNumber="275">Antenna</emphasis>
relatively short (
<figureCitation id="85D0FE9E3C0BFF84F995136AFDFEF930" box="[498,627,1663,1689]" captionStart="FIGURE 3" captionStartId="5.[151,250,1764,1788]" captionTargetBox="[164,1428,432,1741]" captionTargetId="figure-125@5.[151,1436,417,1741]" captionTargetPageId="5" captionText="FIGURE 3. Ovalona garibiani.sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females.A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, Ovalona archeri (Sars, 1888), antenna of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231653" httpUri="https://zenodo.org/record/11231653/files/figure.png" pageId="2" pageNumber="275">Fig. 3A–B</figureCitation>
). Antennal formula, setae 0-0-3/1-1-3, spines 1-0-1/0-0-1. Basipodite robust, branches of moderate length and width, basal segments of both branches 1.5 times longer than others. Basal segment of exopodite massive, almost two times wider than middle segment. Middle segments of both branches almost square in lateral view. Middle segment of endopodite with cluster of long setulae. Seta arising from basal segment of endopodite slightly longer than endopodite. Seta arising from middle segment of endopodite of similar size of shortest apical setae. On both branches, one apical seta much shorter than two others. Spine on basal segment of exopodite as long as the middle segment. Apical spines of similar length as the respective apical segments.
</paragraph>
<caption id="4994B2933C0AFF85F8F0125FFBEFF867" ID-DOI="http://doi.org/10.5281/zenodo.11231646" ID-Zenodo-Dep="11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="3" pageNumber="276" startId="3.[151,250,1866,1890]" targetBox="[165,1431,187,1826]" targetPageId="3" targetType="figure">
<paragraph id="1D54E21B3C0AFF85F8F0125FFBEFF867" blockId="3.[151,1437,1866,1998]" pageId="3" pageNumber="276">
<emphasis id="2F9F3E093C0AFF85F8F0125FFE9BF8CB" bold="true" box="[151,278,1866,1890]" pageId="3" pageNumber="276">FIGURE 1.</emphasis>
<taxonomicName id="DAEB99983C0AFF85F947125FFE53F8CB" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[288,478,1866,1890]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="3" pageNumber="276" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0AFF85F947125FFE53F8CB" box="[288,478,1866,1890]" italics="true" pageId="3" pageNumber="276">Ovalona garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0AFF85F98F125FFDB1F8CB" bold="true" box="[488,572,1866,1890]" pageId="3" pageNumber="276">
<taxonomicNameLabel id="34AC83723C0AFF85F98F125FFDB1F8CB" box="[488,572,1866,1890]" pageId="3" pageNumber="276" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, 
<taxonomicName id="DAEB99983C0AFF85F8F012A3FE4EF867" authority="(Sars, 1888)" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[151,451,1974,1998]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="3" pageNumber="276" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0AFF85F8F012A3FEB2F867" box="[151,319,1974,1998]" italics="true" pageId="3" pageNumber="276">Ovalona archeri</emphasis>
(
<bibRefCitation id="797A9FEA3C0AFF85F92B12A3FE36F867" author="Sars G. O." box="[332,443,1974,1998]" pageId="3" pageNumber="276" pagination="1 - 74" refId="ref6244" refString="Sars G. O. (1888) Additional notes on Australian Cladocera raised from dried mud. Forhandlinger i Videnskabs - Selskabet i Christiania, 1888, 1 - 74." type="journal article" year="1888">Sars, 1888</bibRefCitation>
)
</taxonomicName>
, postabdomen of adult parthenogenetic female (after 
<bibRefCitation id="797A9FEA3C0AFF85FB8712A3FBDAF867" author="Sinev, A. Y." box="[992,1111,1974,1998]" pageId="3" pageNumber="276" pagination="247 - 254" refId="ref6276" refString="Sinev, A. Y. (2002) Redescription of Australian cladoceran, Alona archeri Sars, 1888 (Branchiopoda: Anomopoda: Chydoridae). Arthropoda Selecta, 11 (4), 247 - 254." type="journal article" year="2002">Sinev 2002</bibRefCitation>
).
</paragraph>
</caption>
<caption id="4994B2933C0DFF82F8F017A4FDC4FD44" ID-DOI="http://doi.org/10.5281/zenodo.11231649" ID-Zenodo-Dep="11231649" httpUri="https://zenodo.org/record/11231649/files/figure.png" pageId="4" pageNumber="277" startId="4.[151,250,689,713]" targetBox="[179,1412,199,645]" targetPageId="4" targetType="figure">
<paragraph id="1D54E21B3C0DFF82F8F017A4FDC4FD44" blockId="4.[151,1436,689,749]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8F017A4FE81FD60" bold="true" box="[151,268,689,713]" pageId="4" pageNumber="277">FIGURE 2</emphasis>
. 
<taxonomicName id="DAEB99983C0DFF82F97017A4FE5CFD60" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[279,465,689,713]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="4" pageNumber="277" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0DFF82F97017A4FE5CFD60" box="[279,465,689,713]" italics="true" pageId="4" pageNumber="277">Ovalona garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0DFF82F9B017A4FDABFD60" bold="true" box="[471,550,689,713]" pageId="4" pageNumber="277">
<taxonomicNameLabel id="34AC83723C0DFF82F9B017A4FDABFD60" box="[471,550,689,713]" pageId="4" pageNumber="277" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality), parthenogenetic female. A–B, lateral view.
</paragraph>
</caption>
<paragraph id="1D54E21B3C0DFF82F8A0162AFE62FCF0" blockId="4.[151,1437,831,2010]" box="[199,495,831,858]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A0162AFEFDFCF0" box="[199,368,831,857]" italics="true" pageId="4" pageNumber="277">Thoracic limbs</emphasis>
: five pairs.
</paragraph>
<paragraph id="1D54E21B3C0DFF82F8A01676FC71FB98" blockId="4.[151,1437,831,2010]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A01676FE9DFCD4" box="[199,272,867,893]" italics="true" pageId="4" pageNumber="277">Limb I</emphasis>
(
<figureCitation id="85D0FE9E3C0DFF82F9791676FE1FFCD4" box="[286,402,867,893]" captionStart="FIGURE 3" captionStartId="5.[151,250,1764,1788]" captionTargetBox="[164,1428,432,1741]" captionTargetId="figure-125@5.[151,1436,417,1741]" captionTargetPageId="5" captionText="FIGURE 3. Ovalona garibiani.sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females.A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, Ovalona archeri (Sars, 1888), antenna of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231653" httpUri="https://zenodo.org/record/11231653/files/figure.png" pageId="4" pageNumber="277">Fig. 3C–E</figureCitation>
) of moderate size. Epipodite ovoid. ODL with a long seta, armed with minute setules in distal part. IDL with three setae; seta 3 longer than ODL seta, seta 2 slightly shorter than ODL seta, both armed with thin setules in distal part, seta 1 of about 1/3 length of seta 3. Endite 3 with four setae, inner seta (1) shorter and thinner than outer setae (a,b,d). Endite 2 with three setae (c,e,f), seta e as long as ODL seta, seta f slightly shorter than seta e. Endite 1 with two 2-segmented setae, both setulated in distal part. No inner setae on endites 1–2. Six-seven rows of thin long setules on ventral face of limb. Two ejector hooks of similar size.
</paragraph>
<paragraph id="1D54E21B3C0DFF82F8A0112EFD3AFB68" blockId="4.[151,1437,831,2010]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A0112EFE90FBFC" box="[199,285,1083,1109]" italics="true" pageId="4" pageNumber="277">Limb II</emphasis>
(
<figureCitation id="85D0FE9E3C0DFF82F948112EFE24FBFC" box="[303,425,1083,1110]" captionStart="FIGURE 3" captionStartId="5.[151,250,1764,1788]" captionTargetBox="[164,1428,432,1741]" captionTargetId="figure-125@5.[151,1436,417,1741]" captionTargetPageId="5" captionText="FIGURE 3. Ovalona garibiani.sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females.A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, Ovalona archeri (Sars, 1888), antenna of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231653" httpUri="https://zenodo.org/record/11231653/files/figure.png" pageId="4" pageNumber="277">Fig. 3F–G</figureCitation>
). Exopodite elongated, with seta three-four times shorter than exopodite. Eight scraping setae (1–8), armed with spinules of similar shape, increasing in length distally, scrapers 1–5 long, of similar length, scrapers 6–8 much shorter. Distal armature of gnathobase with four elements. Filter plate with seven setae, the posteriormost seta two times shorter than others.
</paragraph>
<paragraph id="1D54E21B3C0DFF82F8A011DEFD9FFADC" blockId="4.[151,1437,831,2010]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A011DEFEAAFB4C" box="[199,295,1227,1253]" italics="true" pageId="4" pageNumber="277">Limb III</emphasis>
(
<figureCitation id="85D0FE9E3C0DFF82F95E11DEFE29FB4C" box="[313,420,1227,1253]" captionStart="FIGURE 3" captionStartId="5.[151,250,1764,1788]" captionTargetBox="[164,1428,432,1741]" captionTargetId="figure-125@5.[151,1436,417,1741]" captionTargetPageId="5" captionText="FIGURE 3. Ovalona garibiani.sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females.A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, Ovalona archeri (Sars, 1888), antenna of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231653" httpUri="https://zenodo.org/record/11231653/files/figure.png" pageId="4" pageNumber="277">Fig.3H–I</figureCitation>
). Epipodite oval; exopodite subtriangular, with seven setae. Seta 3 being longest, seta 6 about 1/2 length of seta 3, setae 1 and 4 of about 1/3 length of seta 3, other setae short. Seta 6 armed with thick long setules in distal part, seta 7 naked, all other setae plumose. Distal endite with three setae, two distalmost members slender, sharp, of similar length; basalmost seta (3) shorter, bilaterally armed with setules. Inner portion of limb of typical for the genus morphology.
</paragraph>
<paragraph id="1D54E21B3C0DFF82F8A0106AFB05F9E7" blockId="4.[151,1437,831,2010]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A0106AFEA9FA30" box="[199,292,1407,1433]" italics="true" pageId="4" pageNumber="277">Limb IV</emphasis>
(
<figureCitation id="85D0FE9E3C0DFF82F952106AFE21FA30" box="[309,428,1407,1433]" captionStart="FIGURE 3" captionStartId="5.[151,250,1764,1788]" captionTargetBox="[164,1428,432,1741]" captionTargetId="figure-125@5.[151,1436,417,1741]" captionTargetPageId="5" captionText="FIGURE 3. Ovalona garibiani.sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females.A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, Ovalona archeri (Sars, 1888), antenna of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231653" httpUri="https://zenodo.org/record/11231653/files/figure.png" pageId="4" pageNumber="277">Fig. 3J–K</figureCitation>
). Preepipodite setulated, epipodite with very short process. Exopodite rounded, with six plumose setae. Seta 3 longest, setae 1–2 slightly shorter than seta 3, setae 4, 5 and 6 of 1/3, 2/3 and 1/3 length of seta 3, respectively. Inner-distal portion of limb IV with four setae and small cylindrical sensillum: seta 1 slender, sharp; three flaming-torch setae (2–4) decreasing in size basally, armed with 6–7 short setulae each. Small sensillum near the base of seta 2. Three long inner setae (a–c) long, slightly increasing in size basally. Gnathobase with a bisegmented seta, small sensillum, and a small hillock distally. Filter plate with five setae.
</paragraph>
<paragraph id="1D54E21B3C0DFF82F8A01342FD65F974" blockId="4.[151,1437,831,2010]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A01342FE97F9D8" box="[199,282,1623,1649]" italics="true" pageId="4" pageNumber="277">Limb V</emphasis>
(
<figureCitation id="85D0FE9E3C0DFF82F94D1342FE0FF9D8" box="[298,386,1623,1649]" captionStart="FIGURE 3" captionStartId="5.[151,250,1764,1788]" captionTargetBox="[164,1428,432,1741]" captionTargetId="figure-125@5.[151,1436,417,1741]" captionTargetPageId="5" captionText="FIGURE 3. Ovalona garibiani.sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females.A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, Ovalona archeri (Sars, 1888), antenna of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231653" httpUri="https://zenodo.org/record/11231653/files/figure.png" pageId="4" pageNumber="277">Fig. 3L</figureCitation>
). Preepipodite setulated. Epipodite oval, without process. Exopodite oval, with four plumose setae, evenly decreasing in size basally; seta 4 three times shorter than seta 1. Inner limb portion as oval lobe with setulated inner margin, only slightly smaller than exopodite. At inner face, two setae, outer one equal in length to seta 2 of exopodite, inner one shorter. No filter plate.
</paragraph>
<paragraph id="1D54E21B3C0DFF82F8A013F2FD05F8A8" blockId="4.[151,1437,831,2010]" box="[199,648,1767,1794]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A013F2FE1EF8A8" bold="true" box="[199,403,1767,1793]" pageId="4" pageNumber="277">Ephippial female</emphasis>
and 
<emphasis id="2F9F3E093C0DFF82F9AD13F2FD89F8A8" bold="true" box="[458,516,1767,1793]" pageId="4" pageNumber="277">male</emphasis>
. Unknown.
</paragraph>
<paragraph id="1D54E21B3C0DFF82F8A0121EFCF0F8E3" blockId="4.[151,1437,831,2010]" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A0121EFF73F88C" bold="true" box="[199,254,1803,1829]" pageId="4" pageNumber="277">Size.</emphasis>
Length of adult female in studied material was 
<quantity id="DA134FFE3C0DFF82FB57121EFC55F88F" box="[816,984,1803,1830]" metricMagnitude="-4" metricUnit="m" metricValue="3.95" metricValueMax="4.3" metricValueMin="3.5999999999999996" pageId="4" pageNumber="277" unit="mm" value="0.395" valueMax="0.43" valueMin="0.36">0.36–0.43 mm</quantity>
, height 
<quantity id="DA134FFE3C0DFF82FC50121EFB5CF88F" box="[1079,1233,1803,1830]" metricMagnitude="-4" metricUnit="m" metricValue="2.7" metricValueMax="3.0" metricValueMin="2.4" pageId="4" pageNumber="277" unit="mm" value="0.27" valueMax="0.3" valueMin="0.24">0.24–0.3 mm</quantity>
. Length of single studied juvenile female of instar II was 
<quantity id="DA134FFE3C0DFF82FA34123AFD34F8E3" box="[595,697,1839,1866]" metricMagnitude="-4" metricUnit="m" metricValue="2.8" pageId="4" pageNumber="277" unit="mm" value="0.28">0.28 mm</quantity>
, height 
<quantity id="DA134FFE3C0DFF82FB75123AFCF4F8E3" box="[786,889,1839,1866]" metricMagnitude="-4" metricUnit="m" metricValue="1.7" pageId="4" pageNumber="277" unit="mm" value="0.17">0.17 mm</quantity>
.
</paragraph>
</subSubSection>
<subSubSection id="55F1B1903C0DFF80F8A01246FAB9FE20" lastPageId="6" lastPageNumber="279" pageId="4" pageNumber="277" type="diagnosis">
<paragraph id="1D54E21B3C0DFF83F8A01246FF76FE20" blockId="4.[151,1437,831,2010]" lastBlockId="5.[151,1437,151,393]" lastPageId="5" lastPageNumber="278" pageId="4" pageNumber="277">
<emphasis id="2F9F3E093C0DFF82F8A01246FE5EF8C4" bold="true" box="[199,467,1875,1901]" pageId="4" pageNumber="277">Differential diagnosis.</emphasis>
<taxonomicName id="DAEB99983C0DFF82F9B91246FD3EF8C4" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[478,691,1875,1901]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="4" pageNumber="277" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0DFF82F9B91246FD3EF8C4" box="[478,691,1875,1901]" italics="true" pageId="4" pageNumber="277">Ovalona garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0DFF82FAD81246FC93F8C4" bold="true" box="[703,798,1875,1901]" pageId="4" pageNumber="277">
<taxonomicNameLabel id="34AC83723C0DFF82FAD81246FC93F8C4" box="[703,798,1875,1901]" pageId="4" pageNumber="277" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
belongs to the 
<taxonomicName id="DAEB99983C0DFF82FBBB1246FBC4F8C4" baseAuthorityName="Guerne &amp; Richard" baseAuthorityYear="1983" box="[988,1097,1875,1901]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="4" pageNumber="277" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="2F9F3E093C0DFF82FBBB1246FBC4F8C4" box="[988,1097,1875,1901]" italics="true" pageId="4" pageNumber="277">cambouei</emphasis>
</taxonomicName>
-group of 
<taxonomicName id="DAEB99983C0DFF82FCA41246FAAEF8C4" authorityName="Van Damme &amp; Dumont" authorityYear="2008" box="[1219,1315,1875,1901]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="4" pageNumber="277" phylum="Arthropoda" rank="genus">
<emphasis id="2F9F3E093C0DFF82FCA41246FAAEF8C4" box="[1219,1315,1875,1901]" italics="true" pageId="4" pageNumber="277">Ovalona</emphasis>
</taxonomicName>
. It differs from species of the 
<emphasis id="2F9F3E093C0DFF82F910126DFE51F838" box="[375,476,1912,1937]" italics="true" pageId="4" pageNumber="277">nuragica</emphasis>
-group by much smaller size and fully connected head pores, and from species of the 
<emphasis id="2F9F3E093C0DFF82F8F0128EFF7EF81C" box="[151,243,1947,1973]" italics="true" pageId="4" pageNumber="277">setulosa</emphasis>
-group by narrow, elongated (length over 2.5 heights) postabdomen (see 
<bibRefCitation id="797A9FEA3C0DFF82FC5C128EFB5DF81F" author="Sinev, A. Y." box="[1083,1232,1947,1974]" pageId="4" pageNumber="277" pagination="451 - 492" refId="ref6427" refString="Sinev, A. Y. (2015 b) Revision of the pulchella - group of Alona s. lato leads to its translocation to Ovalona Van Damme et Dumont, 2008 (Branchiopoda: Anomopoda: Chydoridae). Zootaxa, 4044 (4), 451 - 492. https: // doi. org / 10.11646 / zootaxa. 4044.4.1" type="journal article" year="2015">Sinev 2015b</bibRefCitation>
). 
<taxonomicName id="DAEB99983C0DFF82FC83128EFAFCF81C" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[1252,1393,1947,1973]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="4" pageNumber="277" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0DFF82FC83128EFAFCF81C" box="[1252,1393,1947,1973]" italics="true" pageId="4" pageNumber="277">O. garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0DFF82FD1C128EFF45F870" bold="true" pageId="4" pageNumber="277">
<taxonomicNameLabel id="34AC83723C0DFF82FD1C128EFF45F870" pageId="4" pageNumber="277" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
differs from most species of the 
<taxonomicName id="DAEB99983C0DFF82FA5812AAFD21F870" baseAuthorityName="Guerne &amp; Richard" baseAuthorityYear="1983" box="[575,684,1983,2009]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="4" pageNumber="277" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="2F9F3E093C0DFF82FA5812AAFD21F870" box="[575,684,1983,2009]" italics="true" pageId="4" pageNumber="277">cambouei</emphasis>
</taxonomicName>
-group by postabdomen with narrow, sparsely spaced lateral group of setulae; distance between postanal groups is slightly greater than group width. This character is shared only by its sibling-species, 
<taxonomicName id="DAEB99983C0CFF83F91615AEFE6BFF7C" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[369,486,187,213]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0CFF83F91615AEFE6BFF7C" box="[369,486,187,213]" italics="true" pageId="5" pageNumber="278">O. archeri</emphasis>
</taxonomicName>
. Within the 
<taxonomicName id="DAEB99983C0CFF83FA1115AEFD6EFF7C" baseAuthorityName="Guerne &amp; Richard" baseAuthorityYear="1983" box="[630,739,187,213]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="2F9F3E093C0CFF83FA1115AEFD6EFF7C" box="[630,739,187,213]" italics="true" pageId="5" pageNumber="278">cambouei</emphasis>
</taxonomicName>
-group, 
<taxonomicName id="DAEB99983C0CFF83FB5915AEFC47FF7C" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[830,970,187,213]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0CFF83FB5915AEFC47FF7C" box="[830,970,187,213]" italics="true" pageId="5" pageNumber="278">O. garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0CFF83FBB415AEFBA2FF7C" bold="true" box="[979,1071,187,213]" pageId="5" pageNumber="278">
<taxonomicNameLabel id="34AC83723C0CFF83FBB415AEFBA2FF7C" box="[979,1071,187,213]" pageId="5" pageNumber="278" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
clearly differs from 
<taxonomicName id="DAEB99983C0CFF83FD7A15AEFEDFFF50" authority="(Stenroos, 1897)" baseAuthorityName="Stenroos" baseAuthorityYear="1897" class="Branchiopoda" genus="Alona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="karelica">
<emphasis id="2F9F3E093C0CFF83FD7A15AEFA10FF7C" box="[1309,1437,187,213]" italics="true" pageId="5" pageNumber="278">O. karelica</emphasis>
(Stenroos, 1897)
</taxonomicName>
and 
<taxonomicName id="DAEB99983C0CFF83F9EF15CAFD63FF50" authority="(Smirnov, 1988)" baseAuthorityName="Smirnov" baseAuthorityYear="1988" box="[392,750,223,249]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="bromelicola">
<emphasis id="2F9F3E093C0CFF83F9EF15CAFDBDFF50" box="[392,560,223,249]" italics="true" pageId="5" pageNumber="278">O. bromelicola</emphasis>
(Smirnov, 1988)
</taxonomicName>
in a well-developed basal spine of postabdominal claw, from 
<taxonomicName id="DAEB99983C0CFF83F8F01416FD5CFEB4" authority="(Sinev &amp; Silva-Briano, 2012)" baseAuthorityName="Sinev &amp; Silva-Briano" baseAuthorityYear="2012" box="[151,721,259,285]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="aguascalientensis">
<emphasis id="2F9F3E093C0CFF83F8F01416FE0DFEB4" box="[151,384,259,285]" italics="true" pageId="5" pageNumber="278">O. aguascalientensis</emphasis>
(Sinev &amp; Silva-Briano, 2012)
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0CFF83FABC1416FC7BFEB4" authority="(Ruhe, 1921)" baseAuthorityName="Ruhe" baseAuthorityYear="1921" box="[731,1014,259,285]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="capensis">
<emphasis id="2F9F3E093C0CFF83FABC1416FCD0FEB5" box="[731,861,259,285]" italics="true" pageId="5" pageNumber="278">O. capensis</emphasis>
(Rühe, 1921)
</taxonomicName>
and 
<taxonomicName id="DAEB99983C0CFF83FC4C1416FF55FEE8" authority="(Guerne &amp; Richard, 1983)" baseAuthorityName="Guerne &amp; Richard" baseAuthorityYear="1983" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="2F9F3E093C0CFF83FC4C1416FB34FEB4" box="[1067,1209,259,285]" italics="true" pageId="5" pageNumber="278">O. cambouei</emphasis>
(Guerne &amp; Richard, 1983)
</taxonomicName>
in completely connected main head pores, and from 
<taxonomicName id="DAEB99983C0CFF83FB5B1432FC43FEE8" baseAuthorityName="Guerne &amp; Richard" baseAuthorityYear="1983" box="[828,974,295,321]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="cambouei">
<emphasis id="2F9F3E093C0CFF83FB5B1432FC43FEE8" box="[828,974,295,321]" italics="true" pageId="5" pageNumber="278">O. cambouei</emphasis>
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0CFF83FBB91432FB7EFEE8" authority="King, 1853" authorityName="King" authorityYear="1853" box="[990,1267,294,321]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="pulchella">
<emphasis id="2F9F3E093C0CFF83FBB91432FBE7FEE8" box="[990,1130,295,321]" italics="true" pageId="5" pageNumber="278">O. pulchella</emphasis>
King, 1853
</taxonomicName>
and 
<taxonomicName id="DAEB99983C0CFF83FD4A1432FEACFECC" authority="(Sars, 1901)" baseAuthorityName="Sars" baseAuthorityYear="1901" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="glabra">
<emphasis id="2F9F3E093C0CFF83FD4A1432FA10FEE8" box="[1325,1437,295,321]" italics="true" pageId="5" pageNumber="278">O. glabra</emphasis>
(Sars, 1901)
</taxonomicName>
in a broadly rounded distal angle of postabdomen, protruding forward above the level of the base of the claw.
</paragraph>
<caption id="4994B2933C0CFF83F8F013F1FE2FF824" ID-DOI="http://doi.org/10.5281/zenodo.11231653" ID-Zenodo-Dep="11231653" httpUri="https://zenodo.org/record/11231653/files/figure.png" pageId="5" pageNumber="278" startId="5.[151,250,1764,1788]" targetBox="[164,1428,432,1741]" targetPageId="5" targetType="figure">
<paragraph id="1D54E21B3C0CFF83F8F013F1FE2FF824" blockId="5.[151,1437,1764,1933]" pageId="5" pageNumber="278">
<emphasis id="2F9F3E093C0CFF83F8F013F1FE9CF954" bold="true" box="[151,273,1764,1789]" pageId="5" pageNumber="278">FIGURE 3.</emphasis>
<emphasis id="2F9F3E093C0CFF83F97113F0FE55F954" box="[278,472,1765,1789]" italics="true" pageId="5" pageNumber="278">
<taxonomicName id="DAEB99983C0CFF83F97113F0FE59F954" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[278,468,1765,1789]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="garibiani">Ovalona garibiani</taxonomicName>
.
</emphasis>
<emphasis id="2F9F3E093C0CFF83F9BC13F0FDA7F954" bold="true" box="[475,554,1765,1789]" pageId="5" pageNumber="278">sp. nov.</emphasis>
from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females. A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, 
<taxonomicName id="DAEB99983C0CFF83FB701244FBC8F8C0" authority="(Sars, 1888)" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[791,1093,1873,1897]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="5" pageNumber="278" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0CFF83FB701244FC32F8C0" box="[791,959,1873,1897]" italics="true" pageId="5" pageNumber="278">Ovalona archeri</emphasis>
(
<bibRefCitation id="797A9FEA3C0CFF83FBAA1244FBB0F8C0" author="Sars G. O." box="[973,1085,1873,1897]" pageId="5" pageNumber="278" pagination="1 - 74" refId="ref6244" refString="Sars G. O. (1888) Additional notes on Australian Cladocera raised from dried mud. Forhandlinger i Videnskabs - Selskabet i Christiania, 1888, 1 - 74." type="journal article" year="1888">Sars, 1888</bibRefCitation>
)
</taxonomicName>
, antenna of adult parthenogenetic female (after 
<bibRefCitation id="797A9FEA3C0CFF83F9471260FE1AF824" author="Sinev, A. Y." box="[288,407,1909,1933]" pageId="5" pageNumber="278" pagination="247 - 254" refId="ref6276" refString="Sinev, A. Y. (2002) Redescription of Australian cladoceran, Alona archeri Sars, 1888 (Branchiopoda: Anomopoda: Chydoridae). Arthropoda Selecta, 11 (4), 247 - 254." type="journal article" year="2002">Sinev 2002</bibRefCitation>
).
</paragraph>
</caption>
<paragraph id="1D54E21B3C0FFF80F8A01582FAB9FE20" blockId="6.[151,1437,151,393]" pageId="6" pageNumber="279">
<taxonomicName id="DAEB99983C0FFF80F8A01582FEDDFF18" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[199,336,151,177]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80F8A01582FEDDFF18" box="[199,336,151,177]" italics="true" pageId="6" pageNumber="279">O. garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0FFF80F9311582FE22FF18" bold="true" box="[342,431,151,177]" pageId="6" pageNumber="279">
<taxonomicNameLabel id="34AC83723C0FFF80F9311582FE22FF18" box="[342,431,151,177]" pageId="6" pageNumber="279" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
differs from 
<taxonomicName id="DAEB99983C0FFF80FA581582FD3CFF18" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[575,689,151,177]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0FFF80FA581582FD3CFF18" box="[575,689,151,177]" italics="true" pageId="6" pageNumber="279">O. archeri</emphasis>
</taxonomicName>
in the proportions of antennal segments (see 
<figureCitation id="85D0FE9E3C0FFF80FCC31582FA8DFF18" box="[1188,1280,151,177]" captionStart="FIGURE 3" captionStartId="5.[151,250,1764,1788]" captionTargetBox="[164,1428,432,1741]" captionTargetId="figure-125@5.[151,1436,417,1741]" captionTargetPageId="5" captionText="FIGURE 3. Ovalona garibiani.sp. nov. from channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–L, appendages of adult parthenogenetic females.A, antenna. B, exopodite of antenna. C–L, thoracic limbs. C, limb I. D, setae a, b, d of limb I. E, ODL and IDL of limb I. F–G, inner and outer portion of limb II. H, exopodite of limb III. I, distal endite of limb III. J, limb IV. K, inner portion of limb IV. L, limb V. M, Ovalona archeri (Sars, 1888), antenna of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231653" httpUri="https://zenodo.org/record/11231653/files/figure.png" pageId="6" pageNumber="279">Fig. 3M</figureCitation>
), 
<taxonomicName id="DAEB99983C0FFF80FD741582FA11FF18" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[1299,1436,151,177]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80FD741582FA11FF18" box="[1299,1436,151,177]" italics="true" pageId="6" pageNumber="279">O. garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0FFF80F8F015AEFF7DFF7C" bold="true" box="[151,240,187,213]" pageId="6" pageNumber="279">
<taxonomicNameLabel id="34AC83723C0FFF80F8F015AEFF7DFF7C" box="[151,240,187,213]" pageId="6" pageNumber="279" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
have much shorter exopodite and endopodite. Length of basal segment of exopodite is only slightly greater than segment width in 
<taxonomicName id="DAEB99983C0FFF80F9F615CAFD97FF50" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[401,538,223,249]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80F9F615CAFD97FF50" box="[401,538,223,249]" italics="true" pageId="6" pageNumber="279">O. garibiani</emphasis>
</taxonomicName>
<taxonomicNameLabel id="34AC83723C0FFF80FA4715CAFDF7FF51" box="[544,634,223,249]" pageId="6" pageNumber="279" rank="species">
<emphasis id="2F9F3E093C0FFF80FA4715CAFDFEFF50" bold="true" box="[544,627,223,249]" pageId="6" pageNumber="279">sp. nov</emphasis>
.
</taxonomicNameLabel>
and it is about two segments width in 
<taxonomicName id="DAEB99983C0FFF80FC7915CAFB1DFF50" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[1054,1168,223,249]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0FFF80FC7915CAFB1DFF50" box="[1054,1168,223,249]" italics="true" pageId="6" pageNumber="279">O. archeri</emphasis>
</taxonomicName>
. Spine of basal segment of antenna exopodite is as long as middle segment in 
<taxonomicName id="DAEB99983C0FFF80FA8E1416FCFEFEB4" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[745,883,259,285]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80FA8E1416FCFEFEB4" box="[745,883,259,285]" italics="true" pageId="6" pageNumber="279">O. garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0FFF80FB1D1416FC5EFEB4" bold="true" box="[890,979,259,285]" pageId="6" pageNumber="279">
<taxonomicNameLabel id="34AC83723C0FFF80FB1D1416FC5EFEB4" box="[890,979,259,285]" pageId="6" pageNumber="279" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
and is much shorter that middle segment in 
<taxonomicName id="DAEB99983C0FFF80F8D11432FEA6FEE8" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[182,299,295,321]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0FFF80F8D11432FEA6FEE8" box="[182,299,295,321]" italics="true" pageId="6" pageNumber="279">O. archeri</emphasis>
</taxonomicName>
. Distal angle of postabdomen protrudes forward over the level of the claw base in 
<taxonomicName id="DAEB99983C0FFF80FC811432FAFFFEE8" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[1254,1394,295,321]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80FC811432FAFFFEE8" box="[1254,1394,295,321]" italics="true" pageId="6" pageNumber="279">O. garibiani</emphasis>
</taxonomicName>
<taxonomicNameLabel id="34AC83723C0FFF80FD1C1432FF44FECC" pageId="6" pageNumber="279" rank="species">
<emphasis id="2F9F3E093C0FFF80FD1C1432FF4EFECC" bold="true" pageId="6" pageNumber="279">sp. nov</emphasis>
.
</taxonomicNameLabel>
, but does not protrude over the level of the claw base in 
<taxonomicName id="DAEB99983C0FFF80FB5C145EFC20FECC" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[827,941,331,357]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0FFF80FB5C145EFC20FECC" box="[827,941,331,357]" italics="true" pageId="6" pageNumber="279">O. archeri</emphasis>
</taxonomicName>
(see 
<figureCitation id="85D0FE9E3C0FFF80FB80145EFBCEFECC" box="[999,1091,331,357]" captionStart="FIGURE 1" captionStartId="3.[151,250,1866,1890]" captionTargetBox="[165,1431,187,1826]" captionTargetId="figure-17@3.[151,1436,181,1842]" captionTargetPageId="3" captionText="FIGURE 1. Ovalona garibiani sp. nov. from a channel at Tràm Chin National Park, Dong Thap province, Vietnam (type locality). A–K, adult parthenogenetic female. A–B, lateral view. C, ventral margin of valve. D, posteroventral angle of valve. E–F, head pores. G–H, keel of labrum. I–J, postabdomen. K, antennule. L, postabdomen of juvenile female of instar II. M, Ovalona archeri (Sars, 1888), postabdomen of adult parthenogenetic female (after Sinev 2002)." figureDoi="http://doi.org/10.5281/zenodo.11231646" httpUri="https://zenodo.org/record/11231646/files/figure.png" pageId="6" pageNumber="279">Fig. 1M</figureCitation>
). Also, these two species differ in proportions of setae of limbs II and III. The differences between the species are summarized in Table I.
</paragraph>
</subSubSection>
<caption id="4994B2933C0FFF80F8F014ADFA8EFE78" box="[151,1283,440,465]" pageId="6" pageNumber="279" startId="6.[151,239,440,464]" targetBox="[163,1422,481,1061]" targetIsTable="true" targetPageId="6" targetType="table">
<paragraph id="1D54E21B3C0FFF80F8F014ADFA8EFE78" blockId="6.[151,1283,440,465]" box="[151,1283,440,465]" pageId="6" pageNumber="279">
<emphasis id="2F9F3E093C0FFF80F8F014ADFE8EFE79" bold="true" box="[151,259,440,464]" pageId="6" pageNumber="279">TABLE 1</emphasis>
. Morphological differences between of 
<taxonomicName id="DAEB99983C0FFF80FAC814ADFCF8FE79" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[687,885,440,464]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80FAC814ADFCF8FE79" box="[687,885,440,464]" italics="true" pageId="6" pageNumber="279">Ovalona garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0FFF80FB1B14ACFC5CFE78" bold="true" box="[892,977,441,465]" pageId="6" pageNumber="279">
<taxonomicNameLabel id="34AC83723C0FFF80FB1B14ACFC5CFE78" box="[892,977,441,465]" pageId="6" pageNumber="279" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
and 
<taxonomicName id="DAEB99983C0FFF80FC6214ACFB72FE78" authority="(Sars, 1888)" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[1029,1279,440,465]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0FFF80FC6214ACFBFEFE79" box="[1029,1139,440,464]" italics="true" pageId="6" pageNumber="279">O. archeri</emphasis>
(
<bibRefCitation id="797A9FEA3C0FFF80FCE614ACFB7AFE78" author="Sars G. O." box="[1153,1271,441,465]" pageId="6" pageNumber="279" pagination="1 - 74" refId="ref6244" refString="Sars G. O. (1888) Additional notes on Australian Cladocera raised from dried mud. Forhandlinger i Videnskabs - Selskabet i Christiania, 1888, 1 - 74." type="journal article" year="1888">Sars, 1888</bibRefCitation>
)
</taxonomicName>
.
</paragraph>
</caption>
<paragraph id="1D54E21B3C0FFF80F8C414F4FA88FB8C" pageId="6" pageNumber="279">
<table id="6FEB10BB3C0F0079F8C414F4FA03FB8C" box="[163,1422,481,1061]" gridcols="3" gridrows="9" pageId="6" pageNumber="279">
<tr id="A3DBE0593C0F0079F8C414F4FA03FE50" box="[163,1422,481,505]" gridrow="0" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C414F4FD8CFE50" box="[163,513,481,505]" gridcol="0" gridrow="0" pageId="6" pageNumber="279">Character</th>
<th id="E00A89253C0F0079FA7F14F4FC33FE50" box="[536,958,481,505]" gridcol="1" gridrow="0" pageId="6" pageNumber="279">
<taxonomicName id="DAEB99983C0FFF80FA7F14F4FD59FE50" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[536,724,481,505]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80FA7F14F4FD59FE50" box="[536,724,481,505]" italics="true" pageId="6" pageNumber="279">Ovalona garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0FFF80FABC14F4FCA6FE50" bold="true" box="[731,811,481,505]" pageId="6" pageNumber="279">
<taxonomicNameLabel id="34AC83723C0FFF80FABC14F4FCA6FE50" box="[731,811,481,505]" pageId="6" pageNumber="279" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</th>
<th id="E00A89253C0F0079FB8514F4FA03FE50" box="[994,1422,481,505]" gridcol="2" gridrow="0" pageId="6" pageNumber="279">
<taxonomicName id="DAEB99983C0FFF80FB8514F4FA86FE50" authority="(Sars, 1888)" baseAuthorityName="Sars" baseAuthorityYear="1888" box="[994,1291,481,505]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="archeri">
<emphasis id="2F9F3E093C0FFF80FB8514F4FB07FE50" box="[994,1162,481,505]" italics="true" pageId="6" pageNumber="279">Ovalona archeri</emphasis>
(
<bibRefCitation id="797A9FEA3C0FFF80FCF014F4FA88FE50" author="Sars G. O." box="[1175,1285,481,505]" pageId="6" pageNumber="279" pagination="1 - 74" refId="ref6244" refString="Sars G. O. (1888) Additional notes on Australian Cladocera raised from dried mud. Forhandlinger i Videnskabs - Selskabet i Christiania, 1888, 1 - 74." type="journal article" year="1888">Sars, 1888</bibRefCitation>
)
</taxonomicName>
</th>
</tr>
<tr id="A3DBE0593C0F0079F8C4171CFA03FD88" box="[163,1422,521,545]" gridrow="1" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C4171CFD8CFD88" box="[163,513,521,545]" gridcol="0" gridrow="1" pageId="6" pageNumber="279">Valves and head shield</th>
<td id="E00A89253C0F0079FA7F171CFC33FD88" box="[536,958,521,545]" gridcol="1" gridrow="1" pageId="6" pageNumber="279">With tubercular sculpture or oblique</td>
<td id="E00A89253C0F0079FB85171CFA03FD88" box="[994,1422,521,545]" gridcol="2" gridrow="1" pageId="6" pageNumber="279">Oblique</td>
</tr>
<tr id="A3DBE0593C0F0079F8C41724FA03FD2D" box="[163,1422,561,644]" gridrow="2" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C41724FD8CFD2D" box="[163,513,561,644]" gridcol="0" gridrow="2" pageId="6" pageNumber="279">Distal angle of postabdomen</th>
<td id="E00A89253C0F0079FA7F1724FC33FD2D" box="[536,958,561,644]" gridcol="1" gridrow="2" pageId="6" pageNumber="279">Projecting forward above the level of the base of the claw, broadly rounded</td>
<td id="E00A89253C0F0079FB851724FA03FD2D" box="[994,1422,561,644]" gridcol="2" gridrow="2" pageId="6" pageNumber="279">It does not protrude forward above the level of the claw base, with a blunt and weakly rounded apex</td>
</tr>
<tr id="A3DBE0593C0F0079F8C41781FA03FD63" box="[163,1422,660,714]" gridrow="3" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C41781FD8CFD63" box="[163,513,660,714]" gridcol="0" gridrow="3" pageId="6" pageNumber="279">Antenna</th>
<td id="E00A89253C0F0079FA7F1781FC33FD63" box="[536,958,660,714]" gridcol="1" gridrow="3" pageId="6" pageNumber="279">Length of both exopodite and endopodite about 1.5 basipodite lengths</td>
<td id="E00A89253C0F0079FB851781FA03FD63" box="[994,1422,660,714]" gridcol="2" gridrow="3" pageId="6" pageNumber="279">Length of both exopodite and endopodite about 2 basipodite lengths</td>
</tr>
<tr id="A3DBE0593C0F0079F8C417CFFA03FCB9" box="[163,1422,730,784]" gridrow="4" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C417CFFD8CFCB9" box="[163,513,730,784]" gridcol="0" gridrow="4" pageId="6" pageNumber="279">Basal segment of antenna exopodite</th>
<td id="E00A89253C0F0079FA7F17CFFC33FCB9" box="[536,958,730,784]" gridcol="1" gridrow="4" pageId="6" pageNumber="279">Very massive, with a length slightly greater than its width</td>
<td id="E00A89253C0F0079FB8517CFFA03FCB9" box="[994,1422,730,784]" gridcol="2" gridrow="4" pageId="6" pageNumber="279">Narrow, with a length about two widths</td>
</tr>
<tr id="A3DBE0593C0F0079F8C4160AFA03FCFC" box="[163,1422,799,853]" gridrow="5" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C4160AFD8CFCFC" box="[163,513,799,853]" gridcol="0" gridrow="5" pageId="6" pageNumber="279">Spine on the basal segment of the antennal exopodite</th>
<td id="E00A89253C0F0079FA7F160AFC33FCFC" box="[536,958,799,853]" gridcol="1" gridrow="5" pageId="6" pageNumber="279">As long as the middle segment or slightly shorter</td>
<td id="E00A89253C0F0079FB85160AFA03FCFC" box="[994,1422,799,853]" gridcol="2" gridrow="5" pageId="6" pageNumber="279">Almost twice as short than middle segment</td>
</tr>
<tr id="A3DBE0593C0F0079F8C41670FA03FC33" box="[163,1422,869,922]" gridrow="6" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C41670FD8CFC33" box="[163,513,869,922]" gridcol="0" gridrow="6" pageId="6" pageNumber="279">Middle segments of exopodite and endopodite of antenna</th>
<td id="E00A89253C0F0079FA7F1670FC33FC33" box="[536,958,869,922]" gridcol="1" gridrow="6" pageId="6" pageNumber="279">The length is slightly greater than the width</td>
<td id="E00A89253C0F0079FB851670FA03FC33" box="[994,1422,869,922]" gridcol="2" gridrow="6" pageId="6" pageNumber="279">Length approximately two widths</td>
</tr>
<tr id="A3DBE0593C0F0079F8C416BFFA03FC49" box="[163,1422,938,992]" gridrow="7" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C416BFFD8CFC49" box="[163,513,938,992]" gridcol="0" gridrow="7" pageId="6" pageNumber="279">Scraping setae of limb II</th>
<td id="E00A89253C0F0079FA7F16BFFC33FC49" box="[536,958,938,992]" gridcol="1" gridrow="7" pageId="6" pageNumber="279">Scrapers 7 and 8 short, about 1/3 and 1/4 length of scraper 1, respectively</td>
<td id="E00A89253C0F0079FB8516BFFA03FC49" box="[994,1422,938,992]" gridcol="2" gridrow="7" pageId="6" pageNumber="279">Scrapers 7 and 8 longer, about 1/2 and 1/3 length of scraper 1, respectively</td>
</tr>
<tr id="A3DBE0593C0F0079F8C416E5FA03FB8C" box="[163,1422,1008,1061]" gridrow="8" pageId="6" pageNumber="279">
<th id="E00A89253C0F0079F8C416E5FD8CFB8C" box="[163,513,1008,1061]" gridcol="0" gridrow="8" pageId="6" pageNumber="279">Exopodite of limb III</th>
<td id="E00A89253C0F0079FA7F16E5FC33FB8C" box="[536,958,1008,1061]" gridcol="1" gridrow="8" pageId="6" pageNumber="279">Length of seta 6 and 4 about 1/2 and 1/3 length of seta 3, respectively</td>
<td id="E00A89253C0F0079FB8516E5FA03FB8C" box="[994,1422,1008,1061]" gridcol="2" gridrow="8" pageId="6" pageNumber="279">Length of seta 6 and 4 about 4/5 and 2/3 length of seta 3, respectively</td>
</tr>
</table>
</paragraph>
<subSubSection id="55F1B1903C0FFF80F8A0116EFA18F9C0" pageId="6" pageNumber="279" type="distribution">
<paragraph id="1D54E21B3C0FFF80F8A0116EFA18F9C0" blockId="6.[151,1437,1147,1642]" pageId="6" pageNumber="279">
<emphasis id="2F9F3E093C0FFF80F8A0116EFE63FB3C" bold="true" box="[199,494,1147,1173]" pageId="6" pageNumber="279">Distribution and ecology</emphasis>
. 
<taxonomicName id="DAEB99983C0FFF80F99B116EFD46FB3C" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[508,715,1147,1173]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80F99B116EFD46FB3C" box="[508,715,1147,1173]" italics="true" pageId="6" pageNumber="279">Ovalona garibiani</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0FFF80FAB4116EFCA1FB3C" bold="true" box="[723,812,1147,1173]" pageId="6" pageNumber="279">
<taxonomicNameLabel id="34AC83723C0FFF80FAB4116EFCA1FB3C" box="[723,812,1147,1173]" pageId="6" pageNumber="279" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is known from several localities at Tràm Chin National Park, Mekong Delta, southern 
<collectingCountry id="65FCA28B3C0FFF80F98D118AFDC4FB10" box="[490,585,1183,1209]" name="Vietnam" pageId="6" pageNumber="279">Vietnam</collectingCountry>
(our data), Thalenoi marsh, Pattalung Province, southern 
<collectingCountry id="65FCA28B3C0FFF80FCAF118AFAA1FB10" box="[1224,1324,1183,1209]" name="Thailand" pageId="6" pageNumber="279">Thailand</collectingCountry>
(
<bibRefCitation id="797A9FEA3C0FFF80FD5F118AFE98FB74" author="Maiphae, S. &amp; Pholpunthin, P. &amp; Dumont, H. J." pageId="6" pageNumber="279" pagination="33 - 43" refId="ref6071" refString="Maiphae, S., Pholpunthin, P. &amp; Dumont, H. J. (2008) Taxon richness and biogeography of the Cladocera (Crustacea: Ctenopoda, Anomopoda) of Thailand. Annales de Limnologie, 44, 33 - 43." type="journal article" year="2008">
Maiphae 
<emphasis id="2F9F3E093C0FFF80F8F011D1FF47FB74" box="[151,202,1219,1245]" italics="true" pageId="6" pageNumber="279">et al</emphasis>
. 2008
</bibRefCitation>
), and Klang Gate Reservoir, 
<collectingRegion id="DF2F2CF93C0FFF80FA0611D6FC84FB74" box="[609,777,1219,1245]" country="Malaysia" name="Selangor" pageId="6" pageNumber="279">Selangor State</collectingRegion>
, 
<collectingCountry id="65FCA28B3C0FFF80FB7211D6FCF1FB74" box="[789,892,1219,1245]" name="Malaysia" pageId="6" pageNumber="279">Malaysia</collectingCountry>
(
<bibRefCitation id="797A9FEA3C0FFF80FBE911D6FB8BFB74" author="Idris, B. A. G." box="[910,1030,1219,1245]" pageId="6" pageNumber="279" refId="ref5499" refString="Idris, B. A. G. (1983) Freshwater zooplankton of Malaysia (Crustacea: Cladocera). Perenbit University, Pertanian, 153 pp." type="book" year="1983">Idris 1983</bibRefCitation>
). It is the first record of the species in 
<collectingCountry id="65FCA28B3C0FFF80F8D111F2FE94FAA8" box="[182,281,1255,1281]" name="Vietnam" pageId="6" pageNumber="279">Vietnam</collectingCountry>
. In the studied samples, most specimens were collected from roots of water hyacinth. In the studied localities, 
<taxonomicName id="DAEB99983C0FFF80F96B101EFE51FA8C" authority="Sinev &amp; Dadykin &amp; Định, 2024" authorityName="Sinev &amp; Dadykin &amp; Định" authorityYear="2024" box="[268,476,1291,1317]" class="Branchiopoda" genus="Ovalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="garibiani" status="sp. nov.">
<emphasis id="2F9F3E093C0FFF80F96B101EFE51FA8C" box="[268,476,1291,1317]" italics="true" pageId="6" pageNumber="279">Ovalona garibiani</emphasis>
</taxonomicName>
<taxonomicNameLabel id="34AC83723C0FFF80F982101EFDCCFA8F" box="[485,577,1291,1318]" pageId="6" pageNumber="279" rank="species">
<emphasis id="2F9F3E093C0FFF80F982101EFDB7FA8C" bold="true" box="[485,570,1291,1317]" pageId="6" pageNumber="279">sp. nov</emphasis>
.
</taxonomicNameLabel>
co-occurred with a diverse chydorid fauna, including 
<taxonomicName id="DAEB99983C0FFF80FCCD101EFDA0FAE0" authority="Van Damme, Sinev &amp; Dumont, 2011" authorityName="Van Damme, Sinev &amp; Dumont" authorityYear="2011" class="Branchiopoda" family="Chydoridae" genus="Anthalona" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="subSpecies" species="harti" subSpecies="harti">
<emphasis id="2F9F3E093C0FFF80FCCD101EFA11FA8C" box="[1194,1436,1291,1317]" italics="true" pageId="6" pageNumber="279">Anthalona harti harti</emphasis>
Van Damme, Sinev &amp; Dumont, 2011
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FA511025FC24FAE3" authority="(Leydig, 1860)" baseAuthorityName="Leydig" baseAuthorityYear="1860" box="[566,937,1327,1354]" class="Branchiopoda" family="Chydoridae" genus="Biapertura" higherTaxonomySource="GBIF" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="affinis">
<emphasis id="2F9F3E093C0FFF80FA511025FD71FAE0" box="[566,764,1327,1353]" italics="true" pageId="6" pageNumber="279">Biapertura affinis</emphasis>
(Leydig, 1860
<emphasis id="2F9F3E093C0FFF80FBF91025FC24FAE3" box="[926,937,1328,1354]" italics="true" pageId="6" pageNumber="279">)</emphasis>
</taxonomicName>
<emphasis id="2F9F3E093C0FFF80FBCE1025FC22FAE3" box="[937,943,1328,1354]" italics="true" pageId="6" pageNumber="279">,</emphasis>
<taxonomicName id="DAEB99983C0FFF80FBD4103AFAB3FAE0" authority="(Daday, 1898)" baseAuthorityName="Daday" baseAuthorityYear="1898" box="[947,1342,1327,1353]" class="Branchiopoda" genus="Euryalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="orientalis">
<emphasis id="2F9F3E093C0FFF80FBD4103AFB14FAE0" box="[947,1177,1327,1353]" italics="true" pageId="6" pageNumber="279">Euryalona orientalis</emphasis>
(Daday, 1898)
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FD2F103AFE29FAC7" authority="(King, 1853)" baseAuthorityName="King" baseAuthorityYear="1853" class="Branchiopoda" genus="Leberis" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="diaphanus">
<emphasis id="2F9F3E093C0FFF80FD2F103AFE81FAC4" italics="true" pageId="6" pageNumber="279">Leberis diaphanus</emphasis>
(King, 1853)
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80F9C81046FCCFFAC4" authority="(Daday, 1898)" baseAuthorityName="Daday" baseAuthorityYear="1898" box="[431,834,1363,1389]" class="Branchiopoda" genus="Notoalona" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="globulosa">
<emphasis id="2F9F3E093C0FFF80F9C81046FD17FAC4" box="[431,666,1363,1389]" italics="true" pageId="6" pageNumber="279">Notoalona globulosa</emphasis>
(Daday, 1898)
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FB2A1046FB6BFAC4" authority="(Daday, 1898)" baseAuthorityName="Daday" baseAuthorityYear="1898" box="[845,1254,1363,1389]" class="Branchiopoda" genus="Oxyurella" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="singalensis">
<emphasis id="2F9F3E093C0FFF80FB2A1046FBB3FAC4" box="[845,1086,1363,1389]" italics="true" pageId="6" pageNumber="279">Oxyurella singalensis</emphasis>
(Daday, 1898)
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FC961046FEB6FA3B" authority="(Fisher, 1854)" baseAuthorityName="Fisher" baseAuthorityYear="1854" class="Branchiopoda" genus="Alonella" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="excisa">
<emphasis id="2F9F3E093C0FFF80FC961046FA11FAC4" box="[1265,1436,1363,1389]" italics="true" pageId="6" pageNumber="279">Alonella excisa</emphasis>
(Fisher, 1854)
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80F92C1062FD35FA38" authority="Sars, 1901" authorityName="Sars" authorityYear="1901" box="[331,696,1399,1425]" class="Branchiopoda" genus="Chydorus" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="eurynotus">
<emphasis id="2F9F3E093C0FFF80F92C1062FDBDFA38" box="[331,560,1399,1425]" italics="true" pageId="6" pageNumber="279">Chydorus eurynotus</emphasis>
Sars, 1901
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FAAF1062FB13FA38" authority="(Richard, 1894)" baseAuthorityName="Richard" baseAuthorityYear="1894" box="[712,1182,1399,1425]" class="Branchiopoda" genus="Ephemeroporus" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="barroisi">
<emphasis id="2F9F3E093C0FFF80FAAF1062FC53FA38" box="[712,990,1399,1425]" italics="true" pageId="6" pageNumber="279">Ephemeroporus barroisi</emphasis>
(Richard, 1894)
</taxonomicName>
and 
<taxonomicName id="DAEB99983C0FFF80FCBB106DFE1CFA1C" authority="Sinev &amp; Yusoff 2016" authorityName="Sinev &amp; Yusoff" authorityYear="2016" class="Branchiopoda" genus="Ephemeroporus" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="malaysiaensis">
<emphasis id="2F9F3E093C0FFF80FCBB106DFA11FA38" box="[1244,1436,1399,1425]" italics="true" pageId="6" pageNumber="279">E. malaysiaensis</emphasis>
<bibRefCitation id="797A9FEA3C0FFF80F8F0108EFE1CFA1C" author="Sinev, A. Y. &amp; Yusoff, F. M." box="[151,401,1435,1461]" pageId="6" pageNumber="279" pagination="399 - 410" refId="ref6956" refString="Sinev, A. Y. &amp; Yusoff, F. M. (2016) A new species of genus Ephemeroporus Frey, 1982 (Cladocera: Anomopoda: Chydoridae) from Peninsular Malaysia. Zootaxa, 4117 (3), 399 - 410. https: // doi. org / 10.11646 / zootaxa. 4117.3.7" type="journal article" year="2016">Sinev &amp; Yusoff 2016</bibRefCitation>
</taxonomicName>
. Other cladoceran species present in the localities were 
<taxonomicName id="DAEB99983C0FFF80FC46108EFA15FA1C" authority="Daday, 1898" authorityName="Daday" authorityYear="1898" box="[1057,1432,1435,1461]" class="Branchiopoda" genus="Pseudosida" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="szalayi">
<emphasis id="2F9F3E093C0FFF80FC46108EFB77FA1C" box="[1057,1274,1435,1461]" italics="true" pageId="6" pageNumber="279">Pseudosida szalayi</emphasis>
Daday, 1898
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80F8F010D5FDC4FA70" authority="(Daday, 1908)" baseAuthorityName="Daday" baseAuthorityYear="1908" box="[151,585,1471,1497]" class="Branchiopoda" family="Bosminidae" genus="Bosminopsis" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="africanus">
<emphasis id="2F9F3E093C0FFF80F8F010D5FE14FA70" box="[151,409,1471,1497]" italics="true" pageId="6" pageNumber="279">Bosminopsis africanus</emphasis>
(Daday, 1908)
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FA3F10AAFC51FA70" authority="Sars, 1901" authorityName="Sars" authorityYear="1901" box="[600,988,1471,1497]" class="Branchiopoda" genus="Ceriodaphnia" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="cornuta">
<emphasis id="2F9F3E093C0FFF80FA3F10AAFCD8FA70" box="[600,853,1471,1497]" italics="true" pageId="6" pageNumber="279">Ceriodaphnia cornuta</emphasis>
Sars, 1901
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FB8C10AAFF5FFA54" authority="Stingelin, 1906" authorityName="Stingelin" authorityYear="1906" class="Branchiopoda" genus="Simocephalus" isUncertain="true" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="latirostris">
<emphasis id="2F9F3E093C0FFF80FB8C10AAFB0AFA70" box="[1003,1159,1471,1497]" italics="true" pageId="6" pageNumber="279">Simocephalus</emphasis>
cf. 
<emphasis id="2F9F3E093C0FFF80FCDF10AAFAA8FA70" box="[1208,1317,1471,1497]" italics="true" pageId="6" pageNumber="279">latirostris</emphasis>
Stingelin, 1906
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80F8BA10F1FD8FFA54" authority="(Koch, 1841)" baseAuthorityName="Koch" baseAuthorityYear="1841" box="[221,514,1507,1534]" class="Branchiopoda" genus="Simocephalus" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="congener">
<emphasis id="2F9F3E093C0FFF80F8BA10F1FEEFFA54" box="[221,354,1508,1534]" italics="true" pageId="6" pageNumber="279">S. congener</emphasis>
(Koch, 1841)
</taxonomicName>
. 
<taxonomicName id="DAEB99983C0FFF80FA6A10F6FCFCFA57" authority="King, 1853" authorityName="King" authorityYear="1853" box="[525,881,1507,1534]" class="Branchiopoda" family="Macrothricidae" genus="Macrothrix" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="spinosa">
<emphasis id="2F9F3E093C0FFF80FA6A10F6FD64FA54" box="[525,745,1507,1533]" italics="true" pageId="6" pageNumber="279">Macrothrix spinosa</emphasis>
King, 1853
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FB1B10F1FB39FA54" authority="(Brady, 1896)" baseAuthorityName="Brady" baseAuthorityYear="1896" box="[892,1204,1507,1533]" class="Branchiopoda" family="Macrothricidae" genus="Macrothrix" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="triserialis">
<emphasis id="2F9F3E093C0FFF80FB1B10F1FB82FA54" box="[892,1039,1507,1533]" italics="true" pageId="6" pageNumber="279">M. triserialis</emphasis>
(Brady, 1896)
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80FCA710F6FEB5F988" authority="Richard, 1892" authorityName="Richard" authorityYear="1892" class="Branchiopoda" family="Macrothricidae" genus="Grimaldina" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="brazzai">
<emphasis id="2F9F3E093C0FFF80FCA710F6FA11FA54" box="[1216,1436,1507,1533]" italics="true" pageId="6" pageNumber="279">Grimaldina brazzai</emphasis>
Richard, 1892
</taxonomicName>
, 
<taxonomicName id="DAEB99983C0FFF80F9261312FD44F988" authority="Richard, 1892" authorityName="Richard" authorityYear="1892" box="[321,713,1543,1569]" class="Branchiopoda" family="Macrothricidae" genus="Guernella" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="raphaelis">
<emphasis id="2F9F3E093C0FFF80F9261312FDAEF988" box="[321,547,1543,1569]" italics="true" pageId="6" pageNumber="279">Guernella raphaelis</emphasis>
Richard, 1892
</taxonomicName>
, and 
<taxonomicName id="DAEB99983C0FFF80FB661312FBF3F988" authority="Herrick, 1882" authorityName="Herrick" authorityYear="1882" box="[769,1150,1543,1569]" class="Branchiopoda" family="Ilyocryptidae" genus="Ilyocryptus" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="spinifer">
<emphasis id="2F9F3E093C0FFF80FB661312FC56F988" box="[769,987,1543,1569]" italics="true" pageId="6" pageNumber="279">Ilyocryptus spinifer</emphasis>
Herrick, 1882
</taxonomicName>
. Most of these species are quite common in 
<collectingCountry id="65FCA28B3C0FFF80F93C133EFE37F9EC" box="[347,442,1579,1605]" name="Vietnam" pageId="6" pageNumber="279">Vietnam</collectingCountry>
and in South-East Asia in general (
<bibRefCitation id="797A9FEA3C0FFF80FB24133EFB04F9EC" author="Sinev, A. Y. &amp; Korovchinsky, N. M." box="[835,1161,1579,1605]" pageId="6" pageNumber="279" pagination="125 - 141" refId="ref6638" refString="Sinev, A. Y. &amp; Korovchinsky, N. M. (2013) Cladocera (Crustacea: Branchiopoda) of Cat Tien National Park, South Vietnam. Journal of Limnology, 70 (2), 125 - 141. https: // doi. org / 10.4081 / jlimnol. 2013. s 2. e 8" type="journal article" year="2013">Sinev &amp; Korovchinsky 2013</bibRefCitation>
), but 
<taxonomicName id="DAEB99983C0FFF80FCA01339FA0EF9EC" authorityName="Sinev &amp; Yusoff" authorityYear="2016" box="[1223,1411,1579,1605]" class="Branchiopoda" genus="Ephemeroporus" kingdom="Animalia" order="Diplostraca" pageId="6" pageNumber="279" phylum="Arthropoda" rank="species" species="malaysiaensis">
<emphasis id="2F9F3E093C0FFF80FCA01339FA0EF9EC" box="[1223,1411,1579,1605]" italics="true" pageId="6" pageNumber="279">E. malaysiaensis</emphasis>
</taxonomicName>
is a rare species known from several overgrown lakes and reservoirs in continental 
<collectingCountry id="65FCA28B3C0FFF80FC46135AFB05F9C0" box="[1057,1160,1615,1641]" name="Malaysia" pageId="6" pageNumber="279">Malaysia</collectingCountry>
(
<bibRefCitation id="797A9FEA3C0FFF80FCF0135AFA04F9C0" author="Sinev, A. Y. &amp; Yusoff, F. M." box="[1175,1417,1615,1641]" pageId="6" pageNumber="279" pagination="399 - 410" refId="ref6956" refString="Sinev, A. Y. &amp; Yusoff, F. M. (2016) A new species of genus Ephemeroporus Frey, 1982 (Cladocera: Anomopoda: Chydoridae) from Peninsular Malaysia. Zootaxa, 4117 (3), 399 - 410. https: // doi. org / 10.11646 / zootaxa. 4117.3.7" type="journal article" year="2016">Sinev &amp; Yusoff 2016</bibRefCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>