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<document id="FAB465164833CB6E8B0D0B0622530A5F" ID-CLB-Dataset="71412" ID-DOI="10.11646/zootaxa.5150.4.4" ID-GBIF-Dataset="b1562bea-da17-4130-a28f-bd6e1bb2a275" ID-ISSN="1175-5326" ID-Zenodo-Dep="6626905" ID-ZooBank="7D852735-1CC9-4FB4-B3F8-38C5D46E8B9E" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1654761209437" checkinUser="plazi" docAuthor="Smith, Robin James &amp; Chang, Cheon Young" docDate="2022" docId="03C687F9FB22A82E5D86FEEBFAD29AA6" docLanguage="en" docName="zootaxa.5150.4.4.pdf" docOrigin="Zootaxa 5150 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Microloxoconcha semicircularis Smith &amp; Chang 2022, sp. nov." docType="treatment" docVersion="7" lastPageNumber="545" masterDocId="FFFFFF81FB2CA83E5D11FFCCFFDF9F43" masterDocTitle="Two new species of non-marine Ostracoda (Crustacea) of the genera Vestalenula Rossetti &amp; Martens, 1998 (Darwinuloidea) and Microloxoconcha Hartmann, 1954 (Cytheroidea) from Tsushima, Japan, and a summary of the non-marine ostracod fauna of the island" masterLastPageNumber="555" masterPageNumber="529" pageNumber="543" updateTime="1699339248932" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="52A0BC3E81D8B0322AC0D7CC1117A8B0">Two new species of non-marine Ostracoda (Crustacea) of the genera Vestalenula Rossetti &amp; Martens, 1998 (Darwinuloidea) and Microloxoconcha Hartmann, 1954 (Cytheroidea) from Tsushima, Japan, and a summary of the non-marine ostracod fauna of the island</mods:title>
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<mods:role id="C5A1C38ABBA20DF8BFD1178DF2EA9288">
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<mods:namePart id="FFE9DA7A3A2D074635C689420DEC4520">Smith, Robin James</mods:namePart>
<mods:affiliation id="8B559A34111F6567EBC5266DB6A3B2F0">Lake Biwa Museum, Oroshimo 1091, Kusatsu, Shiga Prefecture 525 - 0001, Japan</mods:affiliation>
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<mods:namePart id="DC6E80C815388AC0193183CBE7678C51">Chang, Cheon Young</mods:namePart>
<mods:nameIdentifier id="210E5CAEB790507711A8EFE255EB12BF" type="ORCID">0000-0001-5557-7120</mods:nameIdentifier>
<mods:affiliation id="2E829DF7A11C04255F90171036DDF038">Department of Biological Science, College of Natural and Life Sciences, Daegu University, Gyeongsan, 38453, Korea cychang @ daegu. ac. kr; https: // orcid. org / 0000 - 0001 - 5557 - 7120</mods:affiliation>
<mods:nameIdentifier id="5ED63E922FBD193DA440462D63DE2A65" type="email">cychang@daegu.ac.kr</mods:nameIdentifier>
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<mods:typeOfResource id="E8D097211EBED54CB8C53BD5FB0FF384">text</mods:typeOfResource>
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<mods:title id="67B26F2BC4D4EFC98BB160BE7FC80B2B">Zootaxa</mods:title>
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<mods:part id="83A27A4F25F039409F4AB99B0EE8CCF5">
<mods:date id="1853AAE0D26C92C1CC14485BE063235C">2022</mods:date>
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<mods:number id="21678548D1B11C33354BDC21047997F7">2022-06-09</mods:number>
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<mods:number id="CB64472B12B605DCD701E4CA41B1B8A2">5150</mods:number>
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<mods:identifier id="D972E1107DAB91660DDD0451D695ED2D" type="CLB-Dataset">71412</mods:identifier>
<mods:identifier id="493A6626709F73B63067DA64765A7BDB" type="DOI">10.11646/zootaxa.5150.4.4</mods:identifier>
<mods:identifier id="5C564B9373E7B37A7CF8BC32D2D94178" type="GBIF-Dataset">b1562bea-da17-4130-a28f-bd6e1bb2a275</mods:identifier>
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<treatment id="03C687F9FB22A82E5D86FEEBFAD29AA6" ID-DOI="http://doi.org/10.5281/zenodo.6626879" ID-GBIF-Taxon="195865095" ID-Zenodo-Dep="6626879" LSID="urn:lsid:plazi:treatment:03C687F9FB22A82E5D86FEEBFAD29AA6" httpUri="http://treatment.plazi.org/id/03C687F9FB22A82E5D86FEEBFAD29AA6" lastPageId="16" lastPageNumber="545" pageId="14" pageNumber="543">
<subSubSection id="C3756564FB22A8305D86FEEBFD5B9E02" box="[151,644,295,322]" pageId="14" pageNumber="543" type="nomenclature">
<paragraph id="8BD036EFFB22A8305D86FEEBFD5B9E02" blockId="14.[151,644,295,358]" box="[151,644,295,322]" pageId="14" pageNumber="543">
<heading id="D0988183FB22A8305D86FEEBFD5B9E02" bold="true" box="[151,644,295,322]" fontSize="11" level="1" pageId="14" pageNumber="543" reason="1">
<emphasis id="B91BEAFDFB22A8305D86FEEBFD5B9E02" bold="true" box="[151,644,295,322]" pageId="14" pageNumber="543">
<taxonomicName id="4C6F4D6CFB22A8305D86FEEBFDC09E01" authority="Smith &amp; Chang, 2022" authorityName="Smith &amp; Chang" authorityYear="2022" box="[151,543,295,322]" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="14" pageNumber="543" phylum="Arthropoda" rank="species" species="semicircularis" status="sp. nov.">
<emphasis id="B91BEAFDFB22A8305D86FEEBFDC09E01" bold="true" box="[151,543,295,322]" italics="true" pageId="14" pageNumber="543">Microloxoconcha semicircularis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2285786FB22A8305F37FEEBFD5B9E02" box="[550,644,295,321]" pageId="14" pageNumber="543" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C3756564FB22A8305D86FE87FE949E25" box="[151,331,331,358]" pageId="14" pageNumber="543" type="description">
<paragraph id="8BD036EFFB22A8305D86FE87FE949E25" blockId="14.[151,644,295,358]" box="[151,331,331,358]" pageId="14" pageNumber="543">
(
<figureCitation id="13542A6AFB22A8305D8EFE87FECF9E26" box="[159,272,331,357]" captionStart="FIGURE 6" captionStartId="13.[151,250,1904,1928]" captionTargetBox="[151,1435,181,1879]" captionTargetId="figure-17@13.[151,1436,181,1880]" captionTargetPageId="13" captionText="FIGURE 6. A–D, Cobanocythere sp. A, LV, ext. B, RV, int. C, Cp, vent., anterior to right. D, Cp, dor., anterior to left. E–J, Microloxoconcha semicircularis sp. nov. (female, LBM 1430009564). E, LV, ext. F, RV, ext. G, LV, ext., detail of postero-ventral margin. H, RV, ext., detail of postero-ventral margin. I, LV, int. J, RV, int. Scale bar = 100 µm for A, B, E, F, 126 µm for G–J, and 23 µm for C &amp; D. White triangles indicate the two semicircular depressions on the valves." figureDoi="http://doi.org/10.5281/zenodo.6626921" httpUri="https://zenodo.org/record/6626921/files/figure.png" pageId="14" pageNumber="543">Figs 6E–J</figureCitation>
&amp;
<figureCitation id="13542A6AFB22A8305C25FE80FE9C9E25" box="[308,323,332,358]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="14" pageNumber="543">7</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C3756564FB22A8305D86FE5FFB5B9E92" pageId="14" pageNumber="543" type="etymology">
<paragraph id="8BD036EFFB22A8305D86FE5FFB5B9E92" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
<emphasis id="B91BEAFDFB22A8305D86FE5FFEC19EEE" bold="true" box="[151,286,403,429]" pageId="14" pageNumber="543">Etymology.</emphasis>
Latin for semicircular, referring to the two small semicircular depressions on the postero-ventral margin of each valve, as well as the semicircular carapace shape of the female in lateral view.
</paragraph>
</subSubSection>
<subSubSection id="C3756564FB22A8305DD6FE17FD109D8E" pageId="14" pageNumber="543" type="diagnosis">
<paragraph id="8BD036EFFB22A8305DD6FE17FD109D8E" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
<emphasis id="B91BEAFDFB22A8305DD6FE17FE9D9EB6" bold="true" box="[199,322,475,501]" pageId="14" pageNumber="543">Diagnosis.</emphasis>
Carapace dorsal margin strongly arched, ventral margin slightly concave, anterior and posterior margins similar in size. Line of concrescence strongly deviating from outer margin along posterior and anterior margins, in places forming inner margin. Very edge of postero-ventral corner of both valves with two small, semicircular depressions. Male sexual organs symmetrical, basal capsule quadrate, inner and outer margins sub-parallel, distal lobe very lightly sclerotized, large and triangular, terminating with tightly rounded tip. Upper ramus elongate irregular oval. Copulatory duct with straight inner edge and bulbous outer edge. Copulatory duct slender and straight. Female caudal process large and rounded.
</paragraph>
</subSubSection>
<subSubSection id="C3756564FB22A8305DD6FD1BFE5F9A4E" pageId="14" pageNumber="543" type="materials_examined">
<paragraph id="8BD036EFFB22A8305DD6FD1BFC769C56" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
<emphasis id="B91BEAFDFB22A8305DD6FD1BFEB69DB2" bold="true" box="[199,361,727,753]" pageId="14" pageNumber="543">Type locality.</emphasis>
<materialsCitation id="3B073CB2FB22A8305C62FD1BFC7B9C56" ID-GBIF-Occurrence="3807253305" country="Japan" county="Tsushima" latitude="34.67306" location="Tidal" longLatPrecision="1" longitude="129.42726" municipality="Kamitsushima-machi Kawachi" pageId="14" pageNumber="543" specimenCount="1">
<location id="8EB06034FB22A8305C62FD1BFE729DB2" LSID="urn:lsid:plazi:treatment:03C687F9FB22A82E5D86FEEBFAD29AA6:8EB06034FB22A8305C62FD1BFE729DB2" box="[371,429,727,753]" country="Japan" county="Tsushima" latitude="34.67306" longLatPrecision="1" longitude="129.42726" municipality="Kamitsushima-machi Kawachi" name="Tidal" pageId="14" pageNumber="543">Tidal</location>
part of a small river in
<collectingMunicipality id="6BB4AC95FB22A8305FDBFD1BFBF59DB2" box="[714,1066,727,753]" pageId="14" pageNumber="543">Kamitsushima-machi Kawachi</collectingMunicipality>
,
<collectingCounty id="62B14E63FB22A8305929FD1BFB799DB2" box="[1080,1190,727,753]" pageId="14" pageNumber="543">Tsushima</collectingCounty>
,
<collectingCountry id="F378767FFB22A83059A5FD14FB289DB1" box="[1204,1271,728,754]" name="Japan" pageId="14" pageNumber="543">Japan</collectingCountry>
,
<geoCoordinate id="EE5B5028FB22A8305814FD1BFA479DB1" box="[1285,1432,727,754]" degrees="34.67306" direction="north" orientation="latitude" pageId="14" pageNumber="543" precision="1" value="34.67306">34.67306º N</geoCoordinate>
,
<geoCoordinate id="EE5B5028FB22A8305D86FD37FEF09C55" box="[151,303,763,790]" degrees="129.42726" direction="east" orientation="longitude" pageId="14" pageNumber="543" precision="1" value="129.42726">129.42726º E</geoCoordinate>
(
<figureCitation id="13542A6AFB22A8305C2FFD37FE5A9C56" box="[318,389,763,789]" captionStart="FIGURE 1" captionStartId="1.[151,250,1094,1118]" captionTargetBox="[172,1424,198,1050]" captionTargetId="figure-17@1.[153,1434,179,1068]" captionTargetPageId="1" captionText="FIGURE 1. Location map of Tsushima and sampling localities." figureDoi="http://doi.org/10.5281/zenodo.6626907" httpUri="https://zenodo.org/record/6626907/files/figure.png" pageId="14" pageNumber="543">Figs 1</figureCitation>
(sample locality 190830 - 03A), 2C–E,
<tableCitation id="C6ED0354FB22A8305E57FD37FC479C56" box="[838,920,763,789]" captionStart="TABLE 1" captionStartId="3.[151,239,151,175]" captionTargetPageId="3" captionText="TABLE 1. Species found on Tsushima during the study, including sample numbers, number of specimens (in parentheses), and known distributions. f = female, m = male. For some species, sex of specimens was not determined. Country and state codes: AU—Australia, CN—China, CO—Colombia, IN—India, JP—Japan, KR—Korea, LK—Sri Lanka, RU—Russia, TH—Thailand, TR—Turkey, TW—Taiwan, ZA—South Africa." httpUri="http://table.plazi.org/id/DF106667FB2FA83D5D86FF5BFC9D9E58" pageId="14" pageNumber="543" tableUuid="DF106667FB2FA83D5D86FF5BFC9D9E58">Table 1</tableCitation>
)
</materialsCitation>
.
</paragraph>
<paragraph id="8BD036EFFB22A8305DD6FCD3FEAA9C7A" blockId="14.[151,1437,403,1978]" box="[199,373,799,825]" pageId="14" pageNumber="543">
<emphasis id="B91BEAFDFB22A8305DD6FCD3FEAA9C7A" bold="true" box="[199,373,799,825]" pageId="14" pageNumber="543">Type material.</emphasis>
</paragraph>
<paragraph id="8BD036EFFB22A8305DD6FC8FFEF49CAD" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
<materialsCitation id="3B073CB2FB22A8305DD6FC8FFEF49CAD" ID-GBIF-Occurrence="3807253302" collectingDate="2019-08-30" collectionCode="LBM" collectorName="Robin J. Smith &amp; Cheon Y. Chang &amp; Jimin Lee" country="Japan" elevation="1" latitude="34.67306" location="Kamitsushima-machi Kawachi" longLatPrecision="1" longitude="129.42726" municipality="Tsushima" pageId="14" pageNumber="543" specimenCode="LBM 1430009561" specimenCount="1" specimenCount-male="1" stateProvince="Nagasaki" typeStatus="holotype">
<emphasis id="B91BEAFDFB22A8305DD6FC8FFEE49C1E" bold="true" box="[199,315,835,861]" pageId="14" pageNumber="543">
<typeStatus id="54D4884DFB22A8305DD6FC8FFEE99C1E" box="[199,310,835,861]" pageId="14" pageNumber="543" type="holotype">Holotype</typeStatus>
.
</emphasis>
<collectingCountry id="F378767FFB22A8305C54FC8FFE489C1E" box="[325,407,835,861]" name="Japan" pageId="14" pageNumber="543">JAPAN</collectingCountry>
—
<collectingRegion id="49ABF80DFB22A8305CA3FC8FFD4E9C1E" box="[434,657,835,861]" country="Japan" name="Nagasaki" pageId="14" pageNumber="543">Nagasaki Prefecture</collectingRegion>
,
<collectingMunicipality id="6BB4AC95FB22A8305F8EFC8FFCD59C1E" box="[671,778,835,861]" pageId="14" pageNumber="543">Tsushima</collectingMunicipality>
•
<specimenCount id="9D69FD66FB22A8305E36FC8FFC899C1D" box="[807,854,835,862]" pageId="14" pageNumber="543" type="male">1 ♂</specimenCount>
, with soft parts dissected in glycerine and sealed in a glass slide, valves stored dry in a micropalaeontological slide;
<location id="8EB06034FB22A8305E8BFCABFB269CC2" LSID="urn:lsid:plazi:treatment:03C687F9FB22A82E5D86FEEBFAD29AA6:8EB06034FB22A8305E8BFCABFB269CC2" box="[922,1273,871,897]" country="Japan" latitude="34.67306" longLatPrecision="1" longitude="129.42726" municipality="Tsushima" name="Kamitsushima-machi Kawachi" pageId="14" pageNumber="543" stateProvince="Nagasaki">Kamitsushima-machi Kawachi</location>
;
<geoCoordinate id="EE5B5028FB22A8305817FCABFA479CC1" box="[1286,1432,871,898]" degrees="34.67306" direction="north" orientation="latitude" pageId="14" pageNumber="543" precision="1" value="34.67306">34.67306º N</geoCoordinate>
,
<geoCoordinate id="EE5B5028FB22A8305D86FC47FEED9CE5" box="[151,306,907,934]" degrees="129.42726" direction="east" orientation="longitude" pageId="14" pageNumber="543" precision="1" value="129.42726">129.42726º E</geoCoordinate>
; alt.
<quantity id="4C979B0AFB22A8305C78FC47FE479CE5" box="[361,408,907,934]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="14" pageNumber="543" unit="m" value="1.0">
<elevation id="0042D1DCFB22A8305C78FC47FE479CE5" box="[361,408,907,934]" metricMagnitude="0" metricUnit="m" metricValue="1.0" pageId="14" pageNumber="543" unit="m" value="1.0">1 m</elevation>
</quantity>
;
<date id="FFD1102FFB22A8305CB5FC47FDE09CE6" box="[420,575,907,933]" pageId="14" pageNumber="543" value="2019-08-30">
<collectingDate id="EF95E9C7FB22A8305CB5FC47FDE09CE6" box="[420,575,907,933]" pageId="14" pageNumber="543" value="2019-08-30">30 Aug. 2019</collectingDate>
</date>
;
<collectorName id="269A5339FB22A8305F5AFC47FD289CE6" box="[587,759,907,934]" pageId="14" pageNumber="543">Robin J. Smith</collectorName>
,
<collectorName id="269A5339FB22A8305E13FC47FC629CE6" box="[770,957,907,934]" pageId="14" pageNumber="543">Cheon Y. Chang</collectorName>
,
<collectorName id="269A5339FB22A8305ED9FC47FBE79CE5" box="[968,1080,907,934]" pageId="14" pageNumber="543">Jimin Lee</collectorName>
leg.; small tidal river with concrete banks, substrate flattened pebbles of sedimentary rock, low tide, salinity 0.3%; sample 190830-03A,
<specimenCode id="DBC99E94FB22A830584EFC7CFEF89CAD" collectionCode="LBM" country="Japan" httpUri="http://grbio.org/cool/pcbg-hhf5" name="Lake Biwa Museum" pageId="14" pageNumber="543">LBM 1430009561</specimenCode>
.
</materialsCitation>
</paragraph>
<paragraph id="8BD036EFFB22A8305DD6FC3BFEF49B19" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
<materialsCitation id="3B073CB2FB22A8305DD6FC3BFEF49B19" ID-GBIF-Occurrence="3807253309" collectingDate="2019-08-30" collectionCode="LBM" collectorName="Robin J. Smith &amp; Cheon Y. Chang &amp; Jimin Lee" country="Japan" elevation="1" latitude="34.67306" location="Tsushima" longLatPrecision="1" longitude="129.42726" municipality="Tsushima" pageId="14" pageNumber="543" specimenCode="LBM 1430009562" specimenCount="1" specimenCount-female="1" stateProvince="Nagasaki" typeStatus="allotype">
<emphasis id="B91BEAFDFB22A8305DD6FC3BFEEC9B52" bold="true" box="[199,307,1015,1041]" pageId="14" pageNumber="543">
<typeStatus id="54D4884DFB22A8305DD6FC3BFEF19B52" box="[199,302,1015,1041]" pageId="14" pageNumber="543" type="allotype">Allotype</typeStatus>
.
</emphasis>
<collectingCountry id="F378767FFB22A8305C2FFC3BFE4F9B52" box="[318,400,1015,1041]" name="Japan" pageId="14" pageNumber="543">JAPAN</collectingCountry>
—
<collectingRegion id="49ABF80DFB22A8305CBBFC3BFD559B52" box="[426,650,1015,1041]" country="Japan" name="Nagasaki" pageId="14" pageNumber="543">Nagasaki Prefecture</collectingRegion>
,
<location id="8EB06034FB22A8305F89FC3BFCDC9B52" LSID="urn:lsid:plazi:treatment:03C687F9FB22A82E5D86FEEBFAD29AA6:8EB06034FB22A8305F89FC3BFCDC9B52" box="[664,771,1015,1041]" country="Japan" name="Tsushima" pageId="14" pageNumber="543" stateProvince="Nagasaki">Tsushima</location>
•
<specimenCount id="9D69FD66FB22A8305E33FC3BFC8F9B51" box="[802,848,1015,1042]" pageId="14" pageNumber="543" type="female">1 ♀</specimenCount>
, with soft parts dissected in glycerine and sealed in a glass slide, valves stored dry in a micropalaeontological slide; same collecting data as holotype;
<specimenCode id="DBC99E94FB22A830584EFBD0FEF89B19" collectionCode="LBM" country="Japan" httpUri="http://grbio.org/cool/pcbg-hhf5" name="Lake Biwa Museum" pageId="14" pageNumber="543">LBM 1430009562</specimenCode>
.
</materialsCitation>
</paragraph>
<paragraph id="8BD036EFFB22A8305DD6FBAFFCFE9B85" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
<materialsCitation id="3B073CB2FB22A8305DD6FBAFFCC19B85" ID-GBIF-Occurrence="3807253311" collectingDate="2019-08-30" collectionCode="LBM" collectorName="Robin J. Smith &amp; Cheon Y. Chang &amp; Jimin Lee" country="Japan" elevation="1" latitude="34.67306" location="Tsushima" longLatPrecision="1" longitude="129.42726" municipality="Tsushima" pageId="14" pageNumber="543" specimenCode="LBM 1430009563, 1430009564, 1430009565" specimenCount="4" specimenCount-female="3" specimenCount-male="1" stateProvince="Nagasaki" typeStatus="paratype">
<emphasis id="B91BEAFDFB22A8305DD6FBAFFE999B3E" bold="true" box="[199,326,1123,1149]" pageId="14" pageNumber="543">
<typeStatus id="54D4884DFB22A8305DD6FBAFFE9E9B3E" box="[199,321,1123,1149]" pageId="14" pageNumber="543" type="paratype">Paratypes</typeStatus>
.
</emphasis>
<collectingCountry id="F378767FFB22A8305C5EFBAFFE7E9B3E" box="[335,417,1123,1149]" name="Japan" pageId="14" pageNumber="543">JAPAN</collectingCountry>
—
<collectingRegion id="49ABF80DFB22A8305CAAFBAFFD459B3E" box="[443,666,1123,1149]" country="Japan" name="Nagasaki" pageId="14" pageNumber="543">Nagasaki Prefecture</collectingRegion>
,
<location id="8EB06034FB22A8305FB6FBAFFCCD9B3E" LSID="urn:lsid:plazi:treatment:03C687F9FB22A82E5D86FEEBFAD29AA6:8EB06034FB22A8305FB6FBAFFCCD9B3E" box="[679,786,1123,1149]" country="Japan" name="Tsushima" pageId="14" pageNumber="543" stateProvince="Nagasaki">Tsushima</location>
•
<specimenCount id="9D69FD66FB22A8305E3CFBAFFC849B3D" box="[813,859,1123,1150]" pageId="14" pageNumber="543" type="male">1 ♂</specimenCount>
,
<specimenCount id="9D69FD66FB22A8305E78FBAFFC749B3D" box="[873,939,1123,1150]" pageId="14" pageNumber="543" type="female">3 ♀♀</specimenCount>
, with soft parts dissected in glycerine and sealed in a glass slide, valves stored dry in a micropalaeontological slide; same collecting data as holotype;
<specimenCode id="DBC99E94FB22A8305871FB44FEF99B85" collectionCode="LBM" country="Japan" httpUri="http://grbio.org/cool/pcbg-hhf5" name="Lake Biwa Museum" pageId="14" pageNumber="543">LBM 1430009563</specimenCode>
,
<specimenCode id="DBC99E94FB22A8305C20FB67FE1F9B85" box="[305,448,1195,1222]" collectionCode="LBM" country="Japan" httpUri="http://grbio.org/cool/pcbg-hhf5" name="Lake Biwa Museum" pageId="14" pageNumber="543">1430009564</specimenCode>
,
<specimenCode id="DBC99E94FB22A8305CDAFB67FD889B85" box="[459,599,1195,1222]" collectionCode="LBM" country="Japan" httpUri="http://grbio.org/cool/pcbg-hhf5" name="Lake Biwa Museum" pageId="14" pageNumber="543">1430009565</specimenCode>
and 1430009566
</materialsCitation>
.
</paragraph>
<paragraph id="8BD036EFFB22A8305DD6FB03FE5F9A4E" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
<materialsCitation id="3B073CB2FB22A8305DD6FB03FEA39A4E" ID-GBIF-Occurrence="3807253306" collectingDate="2019-08-30" collectionCode="LBM" collectorName="Robin J. Smith &amp; Cheon Y. Chang &amp; Jimin Lee" country="Japan" elevation="1" latitude="34.67306" location="Tsushima" longLatPrecision="1" longitude="129.42726" municipality="Tsushima" pageId="14" pageNumber="543" specimenCount="8" specimenCount-female="1" specimenCount-male="7" stateProvince="Nagasaki">
<emphasis id="B91BEAFDFB22A8305DD6FB03FE5A9BAA" bold="true" box="[199,389,1231,1257]" pageId="14" pageNumber="543">Other Material.</emphasis>
<collectingCountry id="F378767FFB22A8305C9DFB03FE019BAA" box="[396,478,1231,1257]" name="Japan" pageId="14" pageNumber="543">JAPAN</collectingCountry>
—
<collectingRegion id="49ABF80DFB22A8305CE8FB03FD099BAA" box="[505,726,1231,1257]" country="Japan" name="Nagasaki" pageId="14" pageNumber="543">Nagasaki Prefecture</collectingRegion>
,
<location id="8EB06034FB22A8305FF0FB03FC939BAA" LSID="urn:lsid:plazi:treatment:03C687F9FB22A82E5D86FEEBFAD29AA6:8EB06034FB22A8305FF0FB03FC939BAA" box="[737,844,1231,1257]" country="Japan" name="Tsushima" pageId="14" pageNumber="543" stateProvince="Nagasaki">Tsushima</location>
•
<specimenCount id="9D69FD66FB22A8305E74FB1CFC729BA9" box="[869,941,1232,1258]" pageId="14" pageNumber="543" type="male">7 ♂♂</specimenCount>
<specimenCount id="9D69FD66FB22A8305EBCFB1CFC0E9BA9" box="[941,977,1232,1258]" pageId="14" pageNumber="543" type="female">♀♀</specimenCount>
, preserved in 70% EtOH; same collect - ing data as holotype
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C3756564FB22A82E5DD6FADBFEDC9B52" lastPageId="16" lastPageNumber="545" pageId="14" pageNumber="543" type="description">
<paragraph id="8BD036EFFB22A8305DD6FADBFE869A72" blockId="14.[151,1437,403,1978]" box="[199,345,1303,1329]" pageId="14" pageNumber="543">
<emphasis id="B91BEAFDFB22A8305DD6FADBFE869A72" bold="true" box="[199,345,1303,1329]" pageId="14" pageNumber="543">Description.</emphasis>
</paragraph>
<paragraph id="8BD036EFFB22A8305DD6FAF7FCA799DA" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
Carapace length female 315–327 µm, height 147–152 µm, height/length = 0.45–0.48 (n=2), male 305–310 µm, height 125–129 µm, height/length = 0.41–0.42 (n=2). Lateral view roughly semicircular, with strongly arched dorsal margin and slightly concave ventral margin, anterior and posterior margins similar in size, with maximum curvature towards ventral margins (
<figureCitation id="13542A6AFB22A8305F30FA6BFD089A81" box="[545,727,1447,1474]" captionStart="FIGURE 6" captionStartId="13.[151,250,1904,1928]" captionTargetBox="[151,1435,181,1879]" captionTargetId="figure-17@13.[151,1436,181,1880]" captionTargetPageId="13" captionText="FIGURE 6. A–D, Cobanocythere sp. A, LV, ext. B, RV, int. C, Cp, vent., anterior to right. D, Cp, dor., anterior to left. E–J, Microloxoconcha semicircularis sp. nov. (female, LBM 1430009564). E, LV, ext. F, RV, ext. G, LV, ext., detail of postero-ventral margin. H, RV, ext., detail of postero-ventral margin. I, LV, int. J, RV, int. Scale bar = 100 µm for A, B, E, F, 126 µm for G–J, and 23 µm for C &amp; D. White triangles indicate the two semicircular depressions on the valves." figureDoi="http://doi.org/10.5281/zenodo.6626921" httpUri="https://zenodo.org/record/6626921/files/figure.png" pageId="14" pageNumber="543">Figs 6E, F, I &amp; J</figureCitation>
,
<figureCitation id="13542A6AFB22A8305FF0FA6BFCE69A81" box="[737,825,1447,1474]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="14" pageNumber="543">7A &amp; B</figureCitation>
). Internal view of both valves with wide calcified inner lamellae. Postero-ventral inner margin of inner calcified inner lamella straight to slightly sinuous, and with three shallow grooves running sub-parallel to each other and outer margin. Line of concrescence strongly deviating from outer margin along posterior and anterior margins, in places forming inner margin. Very edge of postero-ventral corner with two small, semi-circular depressions (
<figureCitation id="13542A6AFB22A8305FD2F9FBFCEA9912" box="[707,821,1591,1617]" captionStart="FIGURE 6" captionStartId="13.[151,250,1904,1928]" captionTargetBox="[151,1435,181,1879]" captionTargetId="figure-17@13.[151,1436,181,1880]" captionTargetPageId="13" captionText="FIGURE 6. A–D, Cobanocythere sp. A, LV, ext. B, RV, int. C, Cp, vent., anterior to right. D, Cp, dor., anterior to left. E–J, Microloxoconcha semicircularis sp. nov. (female, LBM 1430009564). E, LV, ext. F, RV, ext. G, LV, ext., detail of postero-ventral margin. H, RV, ext., detail of postero-ventral margin. I, LV, int. J, RV, int. Scale bar = 100 µm for A, B, E, F, 126 µm for G–J, and 23 µm for C &amp; D. White triangles indicate the two semicircular depressions on the valves." figureDoi="http://doi.org/10.5281/zenodo.6626921" httpUri="https://zenodo.org/record/6626921/files/figure.png" pageId="14" pageNumber="543">Fig. 6H–J</figureCitation>
; marked with white triangles on
<figureCitation id="13542A6AFB22A83059B1F9FBFAEA9911" box="[1184,1333,1591,1618]" captionStart="FIGURE 6" captionStartId="13.[151,250,1904,1928]" captionTargetBox="[151,1435,181,1879]" captionTargetId="figure-17@13.[151,1436,181,1880]" captionTargetPageId="13" captionText="FIGURE 6. A–D, Cobanocythere sp. A, LV, ext. B, RV, int. C, Cp, vent., anterior to right. D, Cp, dor., anterior to left. E–J, Microloxoconcha semicircularis sp. nov. (female, LBM 1430009564). E, LV, ext. F, RV, ext. G, LV, ext., detail of postero-ventral margin. H, RV, ext., detail of postero-ventral margin. I, LV, int. J, RV, int. Scale bar = 100 µm for A, B, E, F, 126 µm for G–J, and 23 µm for C &amp; D. White triangles indicate the two semicircular depressions on the valves." figureDoi="http://doi.org/10.5281/zenodo.6626921" httpUri="https://zenodo.org/record/6626921/files/figure.png" pageId="14" pageNumber="543">Fig. 6G and I</figureCitation>
). Adductor muscle scars with row of four closely spaced scars, and one large frontal scar. Dorsal view laterally compressed with bulge in middle area. Surface of valves with smooth surface.
</paragraph>
<paragraph id="8BD036EFFB22A8305DD6F96FFC08986A" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
Antennule with five segments (
<figureCitation id="13542A6AFB22A8305F3FF96FFD5799FE" box="[558,648,1699,1725]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="14" pageNumber="543">Fig. 7C</figureCitation>
). First and second segments elongate. Third segment short, with one short apical-dorsal seta. Fourth segment elongate with one short dorsal seta at mid-length position and one short apical-dorsal seta. Fifth segment elongate, apically with one short seta, and two aesthetasc-like setae fused together at base, one with widened bulbous end, and one thinner with rounded end.
</paragraph>
<paragraph id="8BD036EFFB22A8305DD6F8FFFD8D98FA" blockId="14.[151,1437,403,1978]" pageId="14" pageNumber="543">
Antenna basis elongate, supporting three-segmented endopod and long, jointed exopod (
<figureCitation id="13542A6AFB22A830598AF8FFFB2B980D" box="[1179,1268,1843,1870]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="14" pageNumber="543">Fig. 7D</figureCitation>
). First endopodal segment with one short apical-ventral seta. Second endopodal segment with one seta on ventral margin, near mid-length, and one apical-ventral seta. Third endopodal segment small, with two short, curved claws. Exopodite reaching to end of claws of endopodite.
</paragraph>
<caption id="DF106667FB23A8315D86F8D3FD589884" ID-DOI="http://doi.org/10.5281/zenodo.6626923" ID-Zenodo-Dep="6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="15" pageNumber="544" startId="15.[151,250,1823,1847]" targetBox="[153,1435,185,1798]" targetPageId="15">
<paragraph id="8BD036EFFB23A8315D86F8D3FD589884" blockId="15.[151,1437,1823,1992]" pageId="15" pageNumber="544">
<emphasis id="B91BEAFDFB23A8315D86F8D3FEC7987B" bold="true" box="[151,280,1823,1848]" pageId="15" pageNumber="544">FIGURE 7.</emphasis>
<taxonomicName id="4C6F4D6CFB23A8315C32F8ECFDAF987B" authority="Smith &amp; Chang, 2022" authorityName="Smith &amp; Chang" authorityYear="2022" box="[291,624,1824,1848]" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="15" pageNumber="544" phylum="Arthropoda" rank="species" species="semicircularis" status="sp. nov.">
<emphasis id="B91BEAFDFB23A8315C32F8ECFDAF987B" box="[291,624,1824,1848]" italics="true" pageId="15" pageNumber="544">Microloxoconcha semicircularis</emphasis>
</taxonomicName>
<emphasis id="B91BEAFDFB23A8315F6AF8ECFD0F987B" bold="true" box="[635,720,1824,1848]" pageId="15" pageNumber="544">
<taxonomicNameLabel id="A2285786FB23A8315F6AF8ECFD0F987B" box="[635,720,1824,1848]" pageId="15" pageNumber="544" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562).
</paragraph>
</caption>
<paragraph id="8BD036EFFB3CA82E5DD6FF5BFAD09E02" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
Mandible palp four-segmented, but division between second and third segments weakly defined (
<figureCitation id="13542A6AFB3CA82E5811FF5BFA899FF2" box="[1280,1366,151,177]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="16" pageNumber="545">Fig. 7E</figureCitation>
). First segment with one short seta on apical inner edge. Second segment elongate with two setae on inner apical corner, and one sub-apical seta on outer edge. Third segment elongate with one stout, long and one much smaller sub-apical setae on inner edge, and one stout, long apical seta. Terminal segment elongate with two medium-length apical claw-like setae. Coxa small with about five teeth and thin, relatively long seta on outer edge (
<figureCitation id="13542A6AFB3CA82E59BCFEEBFADD9E02" box="[1197,1282,295,321]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="16" pageNumber="545">Fig. 7F</figureCitation>
).
</paragraph>
<paragraph id="8BD036EFFB3CA82E5DD6FE87FCBE9EEE" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
Maxillula palp with very indistinct segmentation between first and second segments (
<figureCitation id="13542A6AFB3CA82E5982FE87FB319E26" box="[1171,1262,331,357]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="16" pageNumber="545">Fig. 7G</figureCitation>
). First segment with one stout apical seta on outer edge. Second segment with two long, curved apical setae. First, second and third endites with about four, three and four apical setae respectively.
</paragraph>
<paragraph id="8BD036EFFB3CA82E5DD6FE7BFA439EB6" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
Fifth limb first segment with one apical seta (
<figureCitation id="13542A6AFB3CA82E5FD1FE7BFCC59E92" box="[704,794,439,465]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="16" pageNumber="545">Fig. 7H</figureCitation>
). Second segment very elongate, with small antero-apical seta. Third and fourth segments approximately equal in length, with fourth segment supporting small, curved claw.
</paragraph>
<paragraph id="8BD036EFFB3CA82E5DD6FE33FF059D7D" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">Brushed-shaped organs of male consisting of small elongate base supporting numerous, fine setae (not figured).</paragraph>
<paragraph id="8BD036EFFB3CA82E5DD6FD8BFE629DEA" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
Sixth limb first and second segments thin and very elongate, each with antero-apical seta (
<figureCitation id="13542A6AFB3CA82E59D5FD8BFACC9D22" box="[1220,1299,583,609]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="16" pageNumber="545">Fig. 7I</figureCitation>
). Third segment shortest of limb, with no setae. Fourth segment longer than third, and supporting small, curved claw, slightly smaller than on fifth limb.
</paragraph>
<paragraph id="8BD036EFFB3CA82E5DD6FD7FFBBA9C56" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
Seventh limb large and robust (
<figureCitation id="13542A6AFB3CA82E5F3DFD7FFDA19D8E" box="[556,638,691,717]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="16" pageNumber="545">Fig. 7J</figureCitation>
). First segment with wide base tapering distally. Second segment supporting thick seta tapering to thin distal part. Third segment slightly longer than fourth, both much shorter than second segment (about 40% of length), fourth segment with large, robust, curved claw.
</paragraph>
<paragraph id="8BD036EFFB3CA82E5DD6FCD3FE0B9CE6" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
Male sexual organs symmetrical, basal capsule quadrate, inner and outer margins sub-parallel, distal lobe very lightly sclerotized, large and triangular, terminating with tightly rounded tip (
<figureCitation id="13542A6AFB3CA82E591DFC8FFBB79C1E" box="[1036,1128,835,861]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="16" pageNumber="545">Fig. 7K</figureCitation>
). Upper ramus elongate irregular oval. Clasping apparatus with straight inner edge and bulbous outer edge. Copulatory duct hooked-shaped, distally slender and straight.
</paragraph>
<paragraph id="8BD036EFFB3CA82E5DD6FC63FEDC9B52" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
Posterior of female with large, angular genital lobe, caudal ramus consisting of small base and two flexible claws, and large, rounded caudal process fringed with long setules (tending to clump together in dissection slides) (
<figureCitation id="13542A6AFB3CA82E5DB1FC3BFF289B52" box="[160,247,1015,1041]" captionStart="FIGURE 7" captionStartId="15.[151,250,1823,1847]" captionTargetBox="[153,1435,185,1798]" captionTargetId="figure-17@15.[153,1435,181,1800]" captionTargetPageId="15" captionText="FIGURE 7. Microloxoconcha semicircularis sp. nov. A, RV, ext., male (LBM 1430009563). B, RV, ext., female (LBM 1430009565). C, antennule (LBM 1430009561). D, antenna (LBM 1430009561). E, mandibular palp (LBM 1430009566). F, mandibular coxa (LBM 1430009561). G, maxillula (branchial plate not drawn) (LBM 1430009566). H, fifth limb (LBM 1430009566). I, sixth limb (LBM 1430009566). J, seventh limb (LBM 1430009561). K, hemipenis (LBM 1430009561). L, posterior of body, female (LBMM 1430009562)." figureDoi="http://doi.org/10.5281/zenodo.6626923" httpUri="https://zenodo.org/record/6626923/files/figure.png" pageId="16" pageNumber="545">Fig. 7L</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C3756564FB3CA82E5DD6FBD7FB429A3A" pageId="16" pageNumber="545" type="discussion">
<paragraph id="8BD036EFFB3CA82E5DD6FBD7FB429A3A" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
<emphasis id="B91BEAFDFB3CA82E5DD6FBD7FEE49B76" bold="true" box="[199,315,1051,1077]" pageId="16" pageNumber="545">Remarks.</emphasis>
Of the 12 other species in the genus
<taxonomicName id="4C6F4D6CFB3CA82E5FF1FBD7FC7B9B76" authorityName="Hartmann" authorityYear="1954" box="[736,932,1051,1077]" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="16" pageNumber="545" phylum="Arthropoda" rank="genus">
<emphasis id="B91BEAFDFB3CA82E5FF1FBD7FC7B9B76" box="[736,932,1051,1077]" italics="true" pageId="16" pageNumber="545">Microloxoconcha</emphasis>
</taxonomicName>
, all differ from
<taxonomicName id="4C6F4D6CFB3CA82E594AFBD7FF159B1A" authority="Smith &amp; Chang, 2022" authorityName="Smith &amp; Chang" authorityYear="2022" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="16" pageNumber="545" phylum="Arthropoda" rank="species" species="semicircularis" status="sp. nov.">
<emphasis id="B91BEAFDFB3CA82E594AFBD7FF159B1A" italics="true" pageId="16" pageNumber="545">Microloxoconcha semicircularis</emphasis>
</taxonomicName>
<emphasis id="B91BEAFDFB3CA82E5DC0FBF3FEF59B1A" bold="true" box="[209,298,1087,1113]" pageId="16" pageNumber="545">
<taxonomicNameLabel id="A2285786FB3CA82E5DC0FBF3FEF59B1A" box="[209,298,1087,1113]" pageId="16" pageNumber="545" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
in the shape of the hemipenes, with the closest being
<taxonomicName id="4C6F4D6CFB3CA82E5E6FFBF3FA479B1A" authority="Higashi et al., 2011" authorityName="Higashi" authorityYear="2011" box="[894,1432,1087,1113]" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="16" pageNumber="545" phylum="Arthropoda" rank="species" species="dimorpha">
<emphasis id="B91BEAFDFB3CA82E5E6FFBF3FB699B1A" box="[894,1206,1087,1113]" italics="true" pageId="16" pageNumber="545">Microloxoconcha dimorpha</emphasis>
<bibRefCitation id="EFFE4B1EFB3CA82E59ADFBF3FA479B1A" author="Higashi, R. &amp; Tsukagoshi, A. &amp; Kimura, H. &amp; Kato, K." box="[1212,1432,1087,1113]" pageId="16" pageNumber="545" pagination="142 - 152" refId="ref13153" refString="Higashi, R., Tsukagoshi, A., Kimura, H. &amp; Kato, K. (2011) Male dimorphism in a new interstitial species of the genus Microloxoconcha (Podocopida: Ostracoda). Journal of Crustacean Biology, 31 (1), 142 - 152. https: // doi. org / 10.1651 / 09 - 3234.1" type="journal article" year="2011">
Higashi
<emphasis id="B91BEAFDFB3CA82E580BFBF3FA8E9B1A" box="[1306,1361,1087,1113]" italics="true" pageId="16" pageNumber="545">et al.</emphasis>
, 2011
</bibRefCitation>
</taxonomicName>
, from
<collectingRegion id="49ABF80DFB3CA82E5DC2FBAFFEE49B3E" box="[211,315,1123,1149]" country="Japan" name="Shizuoka" pageId="16" pageNumber="545">Shizuoka</collectingRegion>
and
<collectingRegion id="49ABF80DFB3CA82E5C61FBAFFE399B3E" box="[368,486,1123,1149]" country="Japan" name="Kanagawa" pageId="16" pageNumber="545">Kanagawa</collectingRegion>
Prefectures. However, the hemipenes of
<taxonomicName id="4C6F4D6CFB3CA82E5EBAFBAFFBE29B3E" box="[939,1085,1123,1149]" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="16" pageNumber="545" phylum="Arthropoda" rank="species" species="dimorpha">
<emphasis id="B91BEAFDFB3CA82E5EBAFBAFFBE29B3E" box="[939,1085,1123,1149]" italics="true" pageId="16" pageNumber="545">M. dimorpha</emphasis>
</taxonomicName>
are asymmetrical, and the carapace, although also elongate, is noticeably different in shape; in lateral view the apex of the curvature of the anterior and posterior margins are shallower and positioned higher than those of
<taxonomicName id="4C6F4D6CFB3CA82E5ED9FB67FAEC9B86" authority="Smith &amp; Chang, 2022" authorityName="Smith &amp; Chang" authorityYear="2022" box="[968,1331,1195,1221]" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="16" pageNumber="545" phylum="Arthropoda" rank="species" species="semicircularis" status="sp. nov.">
<emphasis id="B91BEAFDFB3CA82E5ED9FB67FAEC9B86" box="[968,1331,1195,1221]" italics="true" pageId="16" pageNumber="545">Microloxoconcha semicircularis</emphasis>
</taxonomicName>
<emphasis id="B91BEAFDFB3CA82E582AFB67FA4A9B86" bold="true" box="[1339,1429,1195,1221]" pageId="16" pageNumber="545">
<taxonomicNameLabel id="A2285786FB3CA82E582AFB67FA4A9B86" box="[1339,1429,1195,1221]" pageId="16" pageNumber="545" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
, which has a noticeable angle at the postero-ventral corner. The chaetotaxy of the appendages of
<taxonomicName id="4C6F4D6CFB3CA82E59C9FB03FEE99A4E" authority="Smith &amp; Chang, 2022" authorityName="Smith &amp; Chang" authorityYear="2022" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="16" pageNumber="545" phylum="Arthropoda" rank="species" species="semicircularis" status="sp. nov.">
<emphasis id="B91BEAFDFB3CA82E59C9FB03FEE99A4E" italics="true" pageId="16" pageNumber="545">Microloxoconcha semicircularis</emphasis>
</taxonomicName>
<emphasis id="B91BEAFDFB3CA82E5C2CFB3FFE499A4E" bold="true" box="[317,406,1267,1293]" pageId="16" pageNumber="545">
<taxonomicNameLabel id="A2285786FB3CA82E5C2CFB3FFE499A4E" box="[317,406,1267,1293]" pageId="16" pageNumber="545" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is most similar to
<taxonomicName id="4C6F4D6CFB3CA82E5F72FB3FFACA9A4E" authority="Higashi &amp; Tsukagoshi, 2008" authorityName="Higashi &amp; Tsukagoshi" authorityYear="2008" box="[611,1301,1267,1293]" class="Ostracoda" family="Cytheromatidae" genus="Microloxoconcha" kingdom="Animalia" order="Podocopida" pageId="16" pageNumber="545" phylum="Arthropoda" rank="species" species="kikaijimaensis">
<emphasis id="B91BEAFDFB3CA82E5F72FB3FFC129A4E" box="[611,973,1267,1293]" italics="true" pageId="16" pageNumber="545">Microloxoconcha kikaijimaensis</emphasis>
<bibRefCitation id="EFFE4B1EFB3CA82E5EC5FB3FFACA9A4E" author="Higashi, R. &amp; Tsukagoshi, A." box="[980,1301,1267,1293]" pageId="16" pageNumber="545" pagination="157 - 173" refId="ref13098" refString="Higashi, R. &amp; Tsukagoshi, A. (2008) Two new species of Microloxoconcha (Crustacea: Ostracoda: Podocopida) from Japan, with a redescription of the genus. Species Diversity, 13, 157 - 173. https: // doi. org / 10.12782 / specdiv. 13.157" type="journal article" year="2008">Higashi &amp; Tsukagoshi, 2008</bibRefCitation>
</taxonomicName>
, which is so far only known from Kikaijima Island,
<collectingRegion id="49ABF80DFB3CA82E5F47FADBFC8C9A72" box="[598,851,1303,1329]" country="Japan" name="Kagoshima" pageId="16" pageNumber="545">Kagoshima Prefecture</collectingRegion>
,
<collectingCountry id="F378767FFB3CA82E5E4EFADBFC7D9A72" box="[863,930,1303,1329]" name="Japan" pageId="16" pageNumber="545">Japan</collectingCountry>
, about
<quantity id="4C979B0AFB3CA82E5EE5FADAFB959A72" box="[1012,1098,1302,1329]" metricMagnitude="5" metricUnit="m" metricValue="6.5" pageId="16" pageNumber="545" unit="km" value="650.0">650 km</quantity>
south of Tsushima. Both species have a large, robust seta on the second segment of the seventh limb, two robust and one tiny setae on the third segment of the mandible, and similar caudal rami and large caudal processes in the females.
</paragraph>
</subSubSection>
<subSubSection id="C3756564FB3CA82E5DD6FA4EFAD29AA6" pageId="16" pageNumber="545" type="distribution">
<paragraph id="8BD036EFFB3CA82E5DD6FA4EFAD29AA6" blockId="16.[151,1437,151,1509]" pageId="16" pageNumber="545">
<emphasis id="B91BEAFDFB3CA82E5DD6FA4EFE2A9ADE" bold="true" box="[199,501,1410,1437]" pageId="16" pageNumber="545">Distribution and ecology.</emphasis>
This species was recovered from a shallow hole dug into the bed of a tidal part of a small river, with a salinity of 0.3% at time of collecting (low tide), and about
<quantity id="4C979B0AFB3CA82E590AFA6AFBBC9A82" box="[1051,1123,1446,1473]" metricMagnitude="2" metricUnit="m" metricValue="1.5" pageId="16" pageNumber="545" unit="m" value="150.0">150 m</quantity>
from the sea. The substrate consisted mostly of flattened pebbles of sedimentary rock with a little fine sand and mud (
<figureCitation id="13542A6AFB3CA82E5999FA07FADE9AA6" box="[1160,1281,1483,1509]" captionStart="FIGURE 2" captionStartId="2.[151,250,1884,1908]" captionTargetBox="[151,1435,418,1859]" captionTargetId="figure-99@2.[151,1435,417,1860]" captionTargetPageId="2" captionText="FIGURE 2. Type localities of Vestalenula gravata sp. nov. (A &amp; B) and Microloxoconcha semicircularis sp. nov. (C–E)." figureDoi="http://doi.org/10.5281/zenodo.6626910" httpUri="https://zenodo.org/record/6626910/files/figure.png" pageId="16" pageNumber="545">Fig. 2C–E</figureCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>
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