179 lines
22 KiB
XML
179 lines
22 KiB
XML
<document id="4A0381ED97E63C2140EFE7D14EF50E79" ID-CLB-Dataset="27859" ID-DOI="10.11646/zootaxa.4527.2.3" ID-GBIF-Dataset="83e54f98-3c98-47fc-81bd-0996bcfbc974" ID-ISSN="1175-5326" ID-Zenodo-Dep="2612104" ID-ZooBank="3A906EF4-2712-4E8B-B5B3-94344B8E4EE8" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1553698330986" checkinUser="plazi" docAuthor="Chavtur, Vladimir G. & Bashmanov, Alexander G." docDate="2018" docId="03C687DEFF9D55283691ED8E4BB7C53E" docLanguage="en" docName="zootaxa.4527.2.3.pdf" docOrigin="Zootaxa 4527 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Schornikovoecia Chavtur & Bashmanov 2018, gen. nov." docType="treatment" docVersion="8" lastPageNumber="200" masterDocId="FFFFFFA6FF9F552B3606ED194B4DC45A" masterDocTitle="Schornikovoecia eugenyi, a novel species and genus of deep benthopelagic halocyprids (Ostracoda, Myodocopa) from the North-west Pacific" masterLastPageNumber="210" masterPageNumber="197" pageNumber="199" updateTime="1698714432033" updateUser="ExternalLinkService">
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<mods:title id="C2B2A3072F4F86E3FD7B8E9DEF59EA6A">Schornikovoecia eugenyi, a novel species and genus of deep benthopelagic halocyprids (Ostracoda, Myodocopa) from the North-west Pacific</mods:title>
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<mods:namePart id="1FFBE0C3E706E6131D803D9C3716CAAB">Chavtur, Vladimir G.</mods:namePart>
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</mods:role>
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<mods:namePart id="D672075AB0F3A9BEA52B979C2A44B1F3">Bashmanov, Alexander G.</mods:namePart>
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<mods:typeOfResource id="96C2FB780CEF7153E4B1304E94FD3984">text</mods:typeOfResource>
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<mods:title id="50BB934C76AC5C28F6E5C236E5BAA31F">Zootaxa</mods:title>
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<mods:part id="FD16CA63DA993C0F2615E1C22E8DB260">
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<mods:date id="102A09EC3136B82304DEA41FF126A150">2018</mods:date>
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<mods:number id="167E5F53934BFD40C47847485968210C">2018-12-05</mods:number>
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<mods:number id="4E453DE10E1A2F80203FF955B3902D9E">4527</mods:number>
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<mods:identifier id="2EE8710F86F84ACF1806AAF30D228EA2" type="DOI">10.11646/zootaxa.4527.2.3</mods:identifier>
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<treatment id="03C687DEFF9D55283691ED8E4BB7C53E" ID-DOI="http://doi.org/10.5281/zenodo.5965971" ID-GBIF-Taxon="154508026" ID-Zenodo-Dep="5965971" LSID="urn:lsid:plazi:treatment:03C687DEFF9D55283691ED8E4BB7C53E" httpUri="http://treatment.plazi.org/id/03C687DEFF9D55283691ED8E4BB7C53E" lastPageId="3" lastPageNumber="200" pageId="2" pageNumber="199">
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<subSubSection id="C3756543FF9D55293691ED8E49C3C4E8" box="[151,654,151,178]" pageId="2" pageNumber="199" type="nomenclature">
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<paragraph id="8BD036C8FF9D55293691ED8E49C3C4E8" blockId="2.[151,654,151,178]" box="[151,654,151,178]" pageId="2" pageNumber="199">
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<heading id="D09881A4FF9D55293691ED8E49C3C4E8" bold="true" box="[151,654,151,178]" fontSize="11" level="1" pageId="2" pageNumber="199" reason="1">
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<emphasis id="B91BEADAFF9D55293691ED8E49C3C4E8" bold="true" box="[151,654,151,178]" pageId="2" pageNumber="199">
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<taxonomicName id="4C6F4D4BFF9D55293691ED8E4A2CC4EB" ID-CoL="84TH5" authority="Chavtur & Bashmanov, 2018" authorityName="Chavtur & Bashmanov" authorityYear="2018" box="[151,353,151,177]" class="Ostracoda" family="Halocyprididae" genus="Schornikovoecia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="2" pageNumber="199" phylum="Arthropoda" rank="genus" status="gen. nov.">
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<emphasis id="B91BEADAFF9D55293691ED8E4A2CC4EB" bold="true" box="[151,353,151,177]" italics="true" pageId="2" pageNumber="199">Schornikovoecia</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A22857A1FF9D5529376EED814A9BC4E8" box="[360,470,152,178]" pageId="2" pageNumber="199" rank="genus">gen. nov.</taxonomicNameLabel>
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Chavtur, 2018
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C3756543FF9D55293691EDC74EC3C541" pageId="2" pageNumber="199" type="etymology">
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<paragraph id="8BD036C8FF9D55293691EDC74EC3C541" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D55293691EDC74A53C4AD" bold="true" box="[151,286,222,247]" pageId="2" pageNumber="199">Etymology.</emphasis>
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The genus is named in honour of the famous ostracodologist Eugeni Ivanovich Schornikov (
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<date id="FFD11008FF9D5529335CEDC64B9EC541" pageId="2" pageNumber="199" value="1938" valueMax="2016">1938- 2016</date>
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), who worked at the Institute of Marine Biology, Far Eastern Branch of Russian Academy Sciences,
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<collectingCountry id="F3787658FF9D5529333AEC1B4EC7C541" box="[1340,1418,258,283]" name="Russia" pageId="2" pageNumber="199">Russia</collectingCountry>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3756543FF9D552936C1EC3F49BCC5DD" pageId="2" pageNumber="199" type="materials_examined">
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<paragraph id="8BD036C8FF9D552936C1EC3F4808C565" blockId="2.[151,1437,222,2011]" box="[199,837,294,319]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1EC3F4A29C565" bold="true" box="[199,356,294,319]" pageId="2" pageNumber="199">
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<typeStatus id="54D4886AFF9D552936C1EC3F4A4FC565" box="[199,258,294,319]" pageId="2" pageNumber="199">Type</typeStatus>
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species:
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</emphasis>
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<taxonomicName id="4C6F4D4BFF9D5529376DEC3F49C9C564" authority="Chavtur & Bashmanov, 2018" authorityName="Chavtur & Bashmanov" authorityYear="2018" box="[363,644,294,318]" class="Ostracoda" family="Halocyprididae" genus="Schornikovoecia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="2" pageNumber="199" phylum="Arthropoda" rank="species" species="eugenyi" status="sp. nov.">
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<emphasis id="B91BEADAFF9D5529376DEC3F49C9C564" box="[363,644,294,318]" italics="true" pageId="2" pageNumber="199">Schornikovoecia eugenyi</emphasis>
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</taxonomicName>
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<emphasis id="B91BEADAFF9D5529348DEC3F49A9C565" bold="true" box="[651,740,294,319]" pageId="2" pageNumber="199">
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<taxonomicNameLabel id="A22857A1FF9D5529348DEC3F49A9C565" box="[651,740,294,319]" pageId="2" pageNumber="199" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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Chavtur
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</paragraph>
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<paragraph id="8BD036C8FF9D552936C1EC5349BCC5DD" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1EC534AF4C539" bold="true" box="[199,441,330,355]" pageId="2" pageNumber="199">Species composition</emphasis>
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. At present the genus is monospecific, but may also include an undescribed species
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<taxonomicName id="4C6F4D4BFF9D55293691EC774A15C5DC" authorityName="Deevey" authorityYear="1968" box="[151,344,366,390]" class="Ostracoda" family="Halocyprididae" genus="Bathyconchoecia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="2" pageNumber="199" phylum="Arthropoda" rank="genus">
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<emphasis id="B91BEADAFF9D55293691EC774A15C5DC" box="[151,344,366,390]" italics="true" pageId="2" pageNumber="199">Bathyconchoecia</emphasis>
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</taxonomicName>
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<emphasis id="B91BEADAFF9D55293758EC774AF5C5DD" bold="true" box="[350,440,366,391]" pageId="2" pageNumber="199">sp. nov.</emphasis>
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Atlantic “B” (
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<bibRefCitation id="EFFE4B39FF9D5529345DEC7749A8C5DD" author="Angel, M. V." box="[603,741,366,391]" pageId="2" pageNumber="199" pagination="2173 - 2188" refId="ref4682" refString="Angel, M. V. (2010) Towards a full inventory of planktonic Ostracoda (Crustacea) for the subtropical Northwestern Atlantic Ocean. Deep Sea Research ll: Topical Studies in Oceanography, 57 (24 - 26), 2173 - 2188. https: // doi. org / 10.1016 / j. dsr 2.2010.09.020" type="journal article" year="2010">Angel 2010</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection id="C3756543FF9D552936C1EC8B49B2C6D8" pageId="2" pageNumber="199" type="diagnosis">
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<paragraph id="8BD036C8FF9D552936C1EC8B4968C605" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1EC8B4A0CC5F1" bold="true" box="[199,321,402,427]" pageId="2" pageNumber="199">Diagnosis.</emphasis>
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<emphasis id="B91BEADAFF9D5529374DEC8A4AF4C5F0" box="[331,441,403,426]" italics="true" pageId="2" pageNumber="199">Carapace</emphasis>
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. Length range
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<quantity id="4C979B2DFF9D5529346BEC8B485FC5F0" box="[621,786,402,427]" metricMagnitude="-3" metricUnit="m" metricValue="4.09" metricValueMax="4.16" metricValueMin="4.02" pageId="2" pageNumber="199" unit="mm" value="4.09" valueMax="4.16" valueMin="4.02">4.02–4.16 mm</quantity>
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in adult males; 3.76–4.0 mm in adult females. Posterodorsal corner of each valve with small but distinct point armed with a row of denticles. Posterior margin of carapace with single row of dentate structures running from below the opening of the carapace glands and decreasing in size towards the postero-ventral corner. Large asymmetrical glands have sclerotized capsules near its openings and are located beneath the postero-dorsal points. Carapace sculpture looks like the vertical and oblique rows of narrow, elongated “scales”.
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</paragraph>
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<paragraph id="8BD036C8FF9D552936C1EF7249B2C6D8" blockId="2.[151,1437,222,2011]" box="[199,767,618,643]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1EF724A13C6D8" box="[199,350,619,642]" italics="true" pageId="2" pageNumber="199">First antenna</emphasis>
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. Second segment lacks ventral setae.
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</paragraph>
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</subSubSection>
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<subSubSection id="C3756543FF9D552836C1EF974BB7C53E" lastPageId="3" lastPageNumber="200" pageId="2" pageNumber="199" type="description">
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<paragraph id="8BD036C8FF9D552936C1EF974932C76C" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1EF974A7FC6FC" box="[199,306,654,678]" italics="true" pageId="2" pageNumber="199">Mandible</emphasis>
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. There is a strongly sclerotized knob-like articular process on the coxa. The masticatory pad is almost spherical: its ventral half is densely covered with short spines and its dorsal surface has numerous minute flabby denticles. The distal and proximal tooth lists are fused. The basale endite, as is usual in the subfamily, is edged with a row of six triangular teeth with similar outer tooth, a small tube-like seta (which leans on the adjacent triangular tooth) and a short spine-like seta.
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</paragraph>
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<paragraph id="8BD036C8FF9D552936C1EE5A48E7C725" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1EE5A4A75C701" box="[199,312,835,859]" italics="true" pageId="2" pageNumber="199">Fifth limb</emphasis>
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. The basale has nine typical setae and a cluster of five to seven (five or six in males and seven in females) moderately long and slender setae on its disto-dorsal surface.
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</paragraph>
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<paragraph id="8BD036C8FF9D552936C1EE934FF1C021" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1EE934A14C7F9" bold="true" box="[199,345,906,931]" pageId="2" pageNumber="199">Description.</emphasis>
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<emphasis id="B91BEADAFF9D55293762EE924A97C7F8" box="[356,474,907,930]" italics="true" pageId="2" pageNumber="199">Carapace.</emphasis>
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Length range
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<quantity id="4C979B2DFF9D5529348FEE93487DC7F8" box="[649,816,906,931]" metricMagnitude="-3" metricUnit="m" metricValue="4.09" metricValueMax="4.16" metricValueMin="4.02" pageId="2" pageNumber="199" unit="mm" value="4.09" valueMax="4.16" valueMin="4.02">4.02–4.16 mm</quantity>
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(n = 2) in adult males and 3.76–4.0 mm (n = 6) in females. It is moderately elongated. Rostrum large, straight and pointed. Anterior, ventral and posterior margins rounded and dorsal margin almost straight. Postero-dorsal corner of each valve with small but distinct point armed with a row of denticles. Posterior margin of carapace with single row of dentate structures running from below the opening of the carapace glands and decreasing in size towards the postero-ventral corner. Large asymmetrical glands have sclerotized capsules near its openings and are located beneath the postero-dorsal points. Carapace sculpture looks like vertical and oblique rows of narrow, elongated “scales” (
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<figureCitation id="13542A4DFF9D552935F3E97B4F74C021" box="[1013,1081,1122,1147]" captionStart="FIGURE 2" captionStartId="5.[151,250,1974,1996]" captionTargetBox="[174,1398,197,1923]" captionTargetId="figure@5.[174,1399,193,1928]" captionTargetPageId="5" captionText="FIGURE 2. Schornikovoecia eugenyi sp. nov. (Adult female: SO223/001-11, length 4.0 mm). A, carapace; B, sculpture pattern of carapace." httpUri="https://zenodo.org/record/2612108/files/figure.png" pageId="2" pageNumber="199">Fig. 2</figureCitation>
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,
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<figureCitation id="13542A4DFF9D55293243E97A4F2AC021" box="[1093,1127,1123,1147]" captionStart="FIGURE 3" captionStartId="6.[151,250,1888,1910]" captionTargetBox="[203,1385,196,1856]" captionTargetId="figure@6.[201,1386,193,1867]" captionTargetPageId="6" captionText="FIGURE 3. Schornikovoecia eugenyi sp. nov. (Adult female: A, paratype MIMB 18357/2; B–G, holotype). A, right valve of carapace in lateral view; B and C, details of carapace: posterior dorsal corners in interior and exterior views; D, first antenna; E, distal part of first antenna; F, endopodite and first exopodite segment of second antenna; G, distal part of endopodite of second antenna." httpUri="https://zenodo.org/record/2612110/files/figure.png" pageId="2" pageNumber="199">3A</figureCitation>
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and
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<figureCitation id="13542A4DFF9D55293298E97A4FE3C021" box="[1182,1198,1123,1147]" captionStart="FIGURE 8" captionStartId="10.[151,250,1347,1369]" captionTargetBox="[160,1416,801,1293]" captionTargetId="figure@10.[150,1436,765,1325]" captionTargetPageId="10" captionText="FIGURE 8. Schornikovoecia eugenyi sp. nov. Carapace of A-1 juvenile (3.03 mm) in ventral view (St. 223/008-12; see Table)." httpUri="https://zenodo.org/record/2612121/files/figure.png" pageId="2" pageNumber="199">8</figureCitation>
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).
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</paragraph>
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<paragraph id="8BD036C8FF9D552936C1E99E4A4AC0BD" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1E99E4A29C0C4" box="[199,356,1159,1182]" italics="true" pageId="2" pageNumber="199">First antenna</emphasis>
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. Elongated and five-segmented. Second segment lacks ventral setae. Large oval cluster of sensory filaments on fourth segment consists of 10–12 rows, each having 25–30 filaments, a total of 250–300 filaments.
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</paragraph>
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<paragraph id="8BD036C8FF9D552936C1E9EA4F14C1C1" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1E9EA4A31C150" box="[199,380,1267,1291]" italics="true" pageId="2" pageNumber="199">Second antenna</emphasis>
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. Structure of the endopodite in the female is typical of the
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<taxonomicName id="4C6F4D4BFF9D5529323FE9EB4E51C151" authorityName="Angel & Graves" authorityYear="2013" box="[1081,1308,1266,1291]" class="Ostracoda" family="Halocyprididae" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="2" pageNumber="199" phylum="Arthropoda" rank="subFamily" subFamily="Bathyconchoeciinae">Bathyconchoeciinae</taxonomicName>
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subfamily. Right clasping organ in male is large and sharply curved and carries three setae of different lengths. Left clasping organ smaller and bent back over its base; with three setae of different lengths. In the male, second endopodite segment with pair of minute pegs near the middle of the dorsal margin and one similar peg inserted near the base of its two setae. First exopodite segment with short slender seta near its terminal margin.
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</paragraph>
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<paragraph id="8BD036C8FF9D552936C1E8BF4A22C228" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1E8BF4A7FC1E4" box="[199,306,1446,1470]" italics="true" pageId="2" pageNumber="199">Mandible</emphasis>
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. With strongly sclerotized knob-like articular process on the coxa. The masticatory pad is almost spherical: its ventral half is densely covered with short spines and its dorsal surface has numerous minute flabby denticles. Distal and proximal tooth lists fused. Basale endite, as usual in the subfamily, edged with a row of six triangular teeth with similar outer tooth, a small tube-like seta (which leans on the adjacent triangular tooth) and a short spine-like seta. Ventral surface of first endopodite segment with one long and stout seta and two shorter and more slender setae.
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</paragraph>
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<paragraph id="8BD036C8FF9D552936C1EB674E46C2E0" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
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<emphasis id="B91BEADAFF9D552936C1EB674A53C2CC" box="[199,286,1662,1686]" italics="true" pageId="2" pageNumber="199">Maxilla</emphasis>
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. Anterior margin of first endopodite segment with a group of four setae proximally and one seta distally. Posterior margin with only one seta. Distal edge of the segment with lateral row of five setae.
|
||
</paragraph>
|
||
<paragraph id="8BD036C8FF9D552936C1EBDF49A1C310" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
|
||
<emphasis id="B91BEADAFF9D552936C1EBDF4A77C284" box="[199,314,1734,1758]" italics="true" pageId="2" pageNumber="199">Fifth limb</emphasis>
|
||
. Basale with nine typical setae and a cluster of five to seven (five or six in males and seven in females) moderately long and slender setae on its disto-dorsal surface. First endopodite segment with seven to nine (seven or eight in males and nine in females) ventral slender setae and three typical dorsal setae. The second segment has two typical setae and one claw-like seta.
|
||
</paragraph>
|
||
<paragraph id="8BD036C8FF9D552936C1EA4F4F45C380" blockId="2.[151,1437,222,2011]" pageId="2" pageNumber="199">
|
||
<emphasis id="B91BEADAFF9D552936C1EA4F4A7AC334" box="[199,311,1878,1902]" italics="true" pageId="2" pageNumber="199">Sixth limb</emphasis>
|
||
. Precoxale bears three setae, coxale with three setae and basale with five ventral and one lateral seta, all of which are plumose. The exopodite is represented by extremely long dorsal setae. The first endopodite segment carries four to five ventral setae and five dorsal setae. Second segment with two ventral and five to six dorsal setae. Third segment with one long claw-like seta and two typical setae.
|
||
</paragraph>
|
||
<paragraph id="8BD036C8FF9C552836C1ED814BB7C53E" blockId="3.[151,1436,151,357]" pageId="3" pageNumber="200">
|
||
<emphasis id="B91BEADAFF9C552836C1ED814A15C4EA" box="[199,344,152,176]" italics="true" pageId="3" pageNumber="200">Seventh limb</emphasis>
|
||
. Elongated and slender.
|
||
<emphasis id="B91BEADAFF9C55283477ED814839C4EA" box="[625,884,152,176]" italics="true" pageId="3" pageNumber="200">Copulatory appendage</emphasis>
|
||
. Elongated, almost straight, slim and rounded at the tip. The muscle bands are not distinguished.
|
||
<emphasis id="B91BEADAFF9C552836C1EDF94A17C4A2" box="[199,346,224,248]" italics="true" pageId="3" pageNumber="200">Caudal furca</emphasis>
|
||
. Each lamella has eight slim and weak claws. Long unpaired seta behind the claws.
|
||
<emphasis id="B91BEADAFF9C552836C1EC1D4A2DC547" bold="true" box="[199,352,260,285]" pageId="3" pageNumber="200">Distribution.</emphasis>
|
||
Ostracods of the genus
|
||
<taxonomicName id="4C6F4D4BFF9C55283473EC1D487DC546" authorityName="Chavtur & Bashmanov" authorityYear="2018" box="[629,816,260,284]" class="Ostracoda" family="Halocyprididae" genus="Schornikovoecia" higherTaxonomySource="GBIF" kingdom="Animalia" order="Halocyprida" pageId="3" pageNumber="200" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91BEADAFF9C55283473EC1D487DC546" box="[629,816,260,284]" italics="true" pageId="3" pageNumber="200">Schornikovoecia</emphasis>
|
||
</taxonomicName>
|
||
were found in the north-western Pacific between 40°– 46°N, 150°–157°E and also in the Sea of Okhotsk in the area 48°N, 150°E at depth range from
|
||
<quantity id="4C979B2DFF9C552832B1EC3E4E25C565" box="[1207,1384,295,320]" metricMagnitude="3" metricUnit="m" metricValue="4.3925" metricValueMax="5.419" metricValueMin="3.366" pageId="3" pageNumber="200" unit="m" value="4392.5" valueMax="5419.0" valueMin="3366.0">3366 to 5419 m</quantity>
|
||
(see
|
||
<tableCitation id="C6ED0373FF9C55283691EC554BA4C53E" box="[151,233,332,357]" captionStart="TABLE 1" captionStartId="1.[151,239,801,824]" captionText="TABLE 1. Station data including specimens of the new species." pageId="3" pageNumber="200">Table 1</tableCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |