121 lines
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121 lines
16 KiB
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<document id="AFC4BFC85FA2D635CC734920EDF0F4B4" ID-ISSN="11755334" IM.materialsCitations_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629706483752" checkinUser="felipe" docAuthor="Martynov, Alexander" docDate="2010" docId="BC5D5914FFF85204FF48FDF18738F99A" docLanguage="en" docName="zt02697p154.pdf" docOrigin="Zootaxa 2697" docStyle="DocumentStyle:D239614CE4198176A422035174489AB1.4:Zootaxa.2009-2012.monograph" docStyleId="D239614CE4198176A422035174489AB1" docStyleName="Zootaxa.2009-2012.monograph" docStyleVersion="4" docTitle="Ophioplexa Martynov 2010, gen. nov." docType="treatment" docVersion="3" lastPageNumber="79" masterDocId="4064216CFFB6524AFFDFFFEC840FFFBE" masterDocTitle="Reassessment of the classification of the Ophiuroidea (Echinodermata), based on morphological characters. I. General character evaluation and delineation of the families Ophiomyxidae and Ophiacanthidae 2697" masterLastPageNumber="154" masterPageNumber="1" pageNumber="79" updateTime="1699098856182" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:titleInfo id="2FBF9295B7F04D8EDD2D1530E16081BD">
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<mods:title id="09290CD7EF7142EE89FA7FD640C75C85">Reassessment of the classification of the Ophiuroidea (Echinodermata), based on morphological characters. I. General character evaluation and delineation of the families Ophiomyxidae and Ophiacanthidae 2697</mods:title>
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<mods:namePart id="D234F5EEB570A8A9B5B58976882F1A23">Martynov, Alexander</mods:namePart>
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<mods:typeOfResource id="58E237CA05D08EA783530DBF0EE646AE">text</mods:typeOfResource>
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<mods:title id="CD4BEC4043C619A5CC88CC169AB0DA69">Zootaxa</mods:title>
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<mods:part id="4F07E5E22F4CBA27C7ECD288F9B0A766">
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<mods:date id="63F93BC0050ED49E89181A8328504BF4">2010</mods:date>
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<mods:detail id="AA4FAFFE0999A2531A1E8A08D5D0B61D" type="pubDate">
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<mods:number id="B1CB4AD58AA6FFF9C635A31E3E428205">2010-12-03</mods:number>
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<mods:detail id="2FF98B913C2CEF51280387566F98C0AA" type="volume">
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<mods:number id="C2712A89AF6F8F68E5A7BE207228DFBF">2697</mods:number>
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<mods:classification id="6A06FECA403513AE16F7E856C47DB84E">journal article</mods:classification>
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<mods:identifier id="28AB334E130BD5F9C0D66B9FA74D007A" type="ISSN">11755334</mods:identifier>
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<treatment id="BC5D5914FFF85204FF48FDF18738F99A" ID-DOI="http://doi.org/10.5281/zenodo.5295575" ID-Zenodo-Dep="5295575" LSID="urn:lsid:plazi:treatment:BC5D5914FFF85204FF48FDF18738F99A" httpUri="http://treatment.plazi.org/id/BC5D5914FFF85204FF48FDF18738F99A" lastPageNumber="79" pageId="78" pageNumber="79">
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<subSubSection id="7CEEBB89FFF85204FF48FDF18597FD89" box="[151,408,541,567]" pageId="78" pageNumber="79" type="nomenclature">
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<paragraph id="344BE802FFF85204FF48FDF18597FD89" blockId="78.[151,408,541,567]" box="[151,408,541,567]" pageId="78" pageNumber="79">
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<heading id="6F035F6EFFF85204FF48FDF18597FD89" bold="true" box="[151,408,541,567]" fontSize="11" level="1" pageId="78" pageNumber="79" reason="1">
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<emphasis id="06803410FFF85204FF48FDF18597FD89" bold="true" box="[151,408,541,567]" pageId="78" pageNumber="79">
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<taxonomicName id="F3F49381FFF85204FF48FDF1852CFD89" ID-CoL="7PQZ7" authority="Martynov, 2010" authorityName="Martynov" authorityYear="2010" box="[151,291,541,567]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophioplexa" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus" status="gen. nov.">
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<emphasis id="06803410FFF85204FF48FDF1852CFD89" bold="true" box="[151,291,541,567]" italics="true" pageId="78" pageNumber="79">Ophioplexa</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="1DB3896BFFF85204FEF5FDF18597FD89" box="[298,408,541,567]" pageId="78" pageNumber="79" rank="genus">gen. nov.</taxonomicNameLabel>
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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="7CEEBB89FFF85204FF48FD8986A4FBA4" pageId="78" pageNumber="79" type="diagnosis">
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<paragraph id="344BE802FFF85204FF48FD8986A4FBA4" blockId="78.[151,1436,613,1572]" pageId="78" pageNumber="79">
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<emphasis id="06803410FFF85204FF48FD898517FDC1" bold="true" box="[151,280,613,639]" pageId="78" pageNumber="79">Diagnosis.</emphasis>
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The disk covered with numerous small, uniform scales covered by a thin skin layer, not evident when dried. The radial shield and adradial genital plate are small and externally inconspicuous. The articulation surface of the radial shield is distinctly excavated ventrally, distally with a groove. The abradial genital plate is absent. The genital slits are small. The oral frame bears numerous oral papillae similar in shape to the cluster of the ventralmost teeth (apical papillae). Several adoral shield papillae, which do not differ considerably from the oral papillae, are placed around the second tentacle pore. The jaws are slightly elongated. The adradial sides of the jaws distally bear a few sharp straight folds. The dental plate is large with rounded sockets and irregular folds. The teeth are spiniform and numerous, ventralmost teeth of similar shape. The dorsal and ventral arm plates are well developed. The arm spine articulations are compressed transversally. Some proximal articulations may have a distinct nerve opening. The sigmoidal fold is absent. The arm spines are hollow, relatively short and flattened, not hooked distally. The vertebrae are distinctly keeled and with zygospondylous articulation.
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</paragraph>
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</subSubSection>
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<subSubSection id="7CEEBB89FFF85204FF19FBC987EBFB34" pageId="78" pageNumber="79" type="etymology">
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<paragraph id="344BE802FFF85204FF19FBC987EBFB34" blockId="78.[151,1436,613,1572]" pageId="78" pageNumber="79">
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<emphasis id="06803410FFF85204FF19FBC9855CFB81" bold="true" box="[198,339,1061,1087]" pageId="78" pageNumber="79">Etymology.</emphasis>
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<emphasis id="06803410FFF85204FEBDFBC985A4FB80" box="[354,427,1061,1086]" italics="true" pageId="78" pageNumber="79">Ophio</emphasis>
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- (after ophiuroid) and
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<emphasis id="06803410FFF85204FD0AFBC9872FFB80" box="[725,800,1061,1086]" italics="true" pageId="78" pageNumber="79">plexus</emphasis>
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(Latin, noun, feminine), braided, in current usage meaning also a complicated combination of elements in a system, in reference to an intricate relationship of the new genus combining traits of both ophiomyxids and ophiacanthids.
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</paragraph>
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</subSubSection>
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<subSubSection id="7CEEBB89FFF85204FF19FB798738F99A" pageId="78" pageNumber="79" type="discussion">
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<paragraph id="344BE802FFF85204FF19FB798738F99A" blockId="78.[151,1436,613,1572]" pageId="78" pageNumber="79">
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<emphasis id="06803410FFF85204FF19FB798530FB11" bold="true" box="[198,319,1173,1199]" pageId="78" pageNumber="79">Remarks.</emphasis>
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(see also under Discussion below). The new genus shows some similarities to the genus
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<taxonomicName id="F3F49381FFF85204FF48FB578542FB6A" authorityName="Lyman" authorityYear="1880" box="[151,333,1211,1236]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophiocymbium" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus">
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<emphasis id="06803410FFF85204FF48FB578542FB6A" box="[151,333,1211,1236]" italics="true" pageId="78" pageNumber="79">Ophiocymbium</emphasis>
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</taxonomicName>
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in the presence of a poorly developed adradial genital plate and radial shield, but possesses several important differences. The genus
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<taxonomicName id="F3F49381FFF85204FDA5FB0C8722FB47" authorityName="Lyman" authorityYear="1880" box="[634,813,1248,1273]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophiocymbium" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus">
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<emphasis id="06803410FFF85204FDA5FB0C8722FB47" box="[634,813,1248,1273]" italics="true" pageId="78" pageNumber="79">Ophiocymbium</emphasis>
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</taxonomicName>
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has distinct block-shaped distal oral papillae as adult and few apical papillae, whereas
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<taxonomicName id="F3F49381FFF85204FDC0FAE986A7FAA0" authority="Martynov, 2010" authorityName="Martynov" authorityYear="2010" box="[543,680,1285,1310]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophioplexa" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus" status="gen. nov.">
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<emphasis id="06803410FFF85204FDC0FAE986A7FAA0" box="[543,680,1285,1310]" italics="true" pageId="78" pageNumber="79">Ophioplexa</emphasis>
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</taxonomicName>
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<emphasis id="06803410FFF85204FD6FFAE98710FAA1" bold="true" box="[688,799,1285,1311]" pageId="78" pageNumber="79">
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<taxonomicNameLabel id="1DB3896BFFF85204FD6FFAE98710FAA1" box="[688,799,1285,1311]" pageId="78" pageNumber="79" rank="genus">gen. nov.</taxonomicNameLabel>
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</emphasis>
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is characterized by numerous spiniform oral papillae, both proximally and distally. The numerous apical papillae of
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<taxonomicName id="F3F49381FFF85204FC51FAC78015FAFA" authority="Martynov, 2010" authorityName="Martynov" authorityYear="2010" box="[910,1050,1323,1348]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophioplexa" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus" status="gen. nov.">
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<emphasis id="06803410FFF85204FC51FAC78015FAFA" box="[910,1050,1323,1348]" italics="true" pageId="78" pageNumber="79">Ophioplexa</emphasis>
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</taxonomicName>
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<emphasis id="06803410FFF85204FBFCFAC6809BFAFA" bold="true" box="[1059,1172,1322,1348]" pageId="78" pageNumber="79">
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<taxonomicNameLabel id="1DB3896BFFF85204FBFCFAC6809BFAFA" box="[1059,1172,1322,1348]" pageId="78" pageNumber="79" rank="genus">gen. nov.</taxonomicNameLabel>
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</emphasis>
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are placed in a dense cluster, whereas
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<taxonomicName id="F3F49381FFF85204FEBEFABC8617FAD7" authorityName="Lyman" authorityYear="1880" box="[353,536,1360,1385]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophiocymbium" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus">
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<emphasis id="06803410FFF85204FEBEFABC8617FAD7" box="[353,536,1360,1385]" italics="true" pageId="78" pageNumber="79">Ophiocymbium</emphasis>
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</taxonomicName>
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has only a few apical papillae. The arm spine articulations of
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<taxonomicName id="F3F49381FFF85204FACFFABC8193FAD7" authority="Martynov, 2010" authorityName="Martynov" authorityYear="2010" box="[1296,1436,1360,1385]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophioplexa" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus" status="gen. nov.">
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<emphasis id="06803410FFF85204FACFFABC8193FAD7" box="[1296,1436,1360,1385]" italics="true" pageId="78" pageNumber="79">Ophioplexa</emphasis>
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</taxonomicName>
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<emphasis id="06803410FFF85204FF48FA998509FA31" bold="true" box="[151,262,1397,1423]" pageId="78" pageNumber="79">
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<taxonomicNameLabel id="1DB3896BFFF85204FF48FA998509FA31" box="[151,262,1397,1423]" pageId="78" pageNumber="79" rank="genus">gen. nov.</taxonomicNameLabel>
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</emphasis>
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are dorso-ventrally compressed with distinct nerve and muscle openings, whereas
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<taxonomicName id="F3F49381FFF85204FB38FA998193FA30" authorityName="Lyman" authorityYear="1880" box="[1255,1436,1397,1422]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophiocymbium" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus">
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<emphasis id="06803410FFF85204FB38FA998193FA30" box="[1255,1436,1397,1422]" italics="true" pageId="78" pageNumber="79">Ophiocymbium</emphasis>
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</taxonomicName>
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has a typical rounded muscle opening, but the nerve opening, if conspicuous, has a different appearance. The dental plate of
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<taxonomicName id="F3F49381FFF85204FE9AFA2C85C2FA67" authority="Martynov, 2010" authorityName="Martynov" authorityYear="2010" box="[325,461,1472,1497]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophioplexa" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus" status="gen. nov.">
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<emphasis id="06803410FFF85204FE9AFA2C85C2FA67" box="[325,461,1472,1497]" italics="true" pageId="78" pageNumber="79">Ophioplexa</emphasis>
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</taxonomicName>
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<emphasis id="06803410FFF85204FE0AFA53864DFA67" bold="true" box="[469,578,1471,1497]" pageId="78" pageNumber="79">
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<taxonomicNameLabel id="1DB3896BFFF85204FE0AFA53864DFA67" box="[469,578,1471,1497]" pageId="78" pageNumber="79" rank="genus">gen. nov.</taxonomicNameLabel>
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</emphasis>
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has a remarkable appearance, with a combination of several articulations and numerous small openings (
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<figureCitation id="ACCFF487FFF85204FDCBFA0986BFFA41" box="[532,688,1509,1535]" captionStart="FIGURE 55" captionStartId="80.[151,258,1764,1788]" captionTargetBox="[209,1364,194,1740]" captionTargetId="figure-174@80.[209,1364,194,1740]" captionTargetPageId="80" captionText="FIGURE 55. Ophioplexa condita gen. nov., sp. nov. and Ophiocymbium ninae sp. nov., details. A. Ophioplexa condita gen. nov., sp. nov., paratype 19 mm dd, ZMMU D-791, disk ventral view; B. same oral frame showing clusters of the ventral teeth (apical papillae); C. same, one interradius showing apical, oral and adoral shield papillae; D-F, same, most proximal arm segments showing tentacle scales and spines; G-H, arm spine articulations, distal segments; I. Ophiocymbium ninae sp. nov., paratype 5 mm dd, ZMMU D-803, details, part of the oral frame and ventral arm side; J. same, jaw and oral papillae, one interradius; K. ventral arm view showing spines and tentacle scales; L. most proximal segments showing details of tentacle scales and spines; M-N, arm spine articulations, proximal segments; Scale bars: A– B, 1 mm; C–D, 500 µ; E–F, 200 µ; G–H, 100 µ; I, 1 mm; J–N, 300 µ. Photos: Alexander Martynov." pageId="78" pageNumber="79">Fig. 55M–N</figureCitation>
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), whereas the dental plate of
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<taxonomicName id="F3F49381FFF85204FBC7FA0980DFFA40" authorityName="Lyman" authorityYear="1880" box="[1048,1232,1509,1534]" class="Ophiuroidea" family="Ophioscolecidae" genus="Ophiocymbium" kingdom="Animalia" order="Ophioscolecida" pageId="78" pageNumber="79" phylum="Echinodermata" rank="genus">
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<emphasis id="06803410FFF85204FBC7FA0980DFFA40" box="[1048,1232,1509,1534]" italics="true" pageId="78" pageNumber="79">Ophiocymbium</emphasis>
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</taxonomicName>
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has a few round openings and completely lacks articulation (
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<figureCitation id="ACCFF487FFF85204FD43F9E68724F99A" box="[668,811,1546,1572]" captionStart="FIGURE 12" captionStartId="21.[151,255,1049,1073]" captionTargetBox="[158,1428,194,1027]" captionTargetId="figure-465@21.[158,1428,194,1027]" captionTargetPageId="21" captionText="FIGURE 12. Dental plates and jaws of the genera Ophioscolex, Ophiocymbium and Ophiologimus. A–B, Ophioscolex glacialis Müller & Troschel, 1842, ZMMU D-843, 18 mm dd, dental plates; C–D, Ophiocymbium tanyae sp. nov., paratype 11 mm dd, ZMMU D-801, abradial and adradial views of the jaws respectively; E. same, dental plate; F. Ophiocymbium ninae sp. nov., paratype 5 mm dd, ZMMU D-803, dental plate; G. Ophiocymbium ninae sp. nov., paratype 5 mm dd, ZMMU D-805, dental plate; H. Ophiocymbium cavernosum Lyman, 1880, ZMMU D-794, 9.5 mm dd, dental plate; I–J, Ophiologimus cf. secundus Koehler, 1914, ZMMU D-815, 4 mm dd, dental plates; K–L, Ophiocymbium ninae sp. nov., paratype 5 mm dd, ZMMU D-805, abradial and adradial views of the jaws respectively; M. Ophiocymbium cavernosum Lyman, 1880, ZMMU D-794, 9.5 mm dd, jaw, adradial view; N–O, Ophiologimus cf. secundus Koehler, 1914, ZMMU D-815, 4 mm dd, abradial and adradial views of the jaws respectively; Scale bars: A, 200 µ; B, 200 µ; C–D, 300 µ; E, 100 µ; F, 300 µ; G, 100 µ; H, 300 µ; I–J, 100 µ; K–L, 300 µ; M, 100 µ; N–O, 300 µ. Photos: Alexander Martynov." pageId="78" pageNumber="79">Fig. 12E–H</figureCitation>
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).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |