143 lines
16 KiB
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143 lines
16 KiB
XML
<document id="2A8F9478D501B48299CA566937D9ECE4" ID-DOI="10.35885/ruthenica.2024.34(4).4" ID-ISSN="2307-7336" ID-Zenodo-Dep="14669576" ID-ZooBank="8D7E9371-6905-4325-9F63-EA9C25E0025E" IM.bibliography_approvedBy="felipe" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1737005433821" checkinUser="felipe" docAuthor="Sirenko, Boris & Anseeuw, Bruno" docDate="2024" docId="815887A4FFE17A4A03B00DFCFDD3C01F" docLanguage="en" docName="Ruthenica.34.4.177-183.pdf" docOrigin="Ruthenica, Russian Malacological Journal 34 (4)" docSource="https://doi.org/10.35885/ruthenica.2024.34(4).4" docStyle="DocumentStyle:3A4A24405A53639AD762166AE048D148.1:Ruthenica.2022-.journal_article.english.index" docStyleId="3A4A24405A53639AD762166AE048D148" docStyleName="Ruthenica.2022-.journal_article.english.index" docStyleVersion="1" docTitle="Barbadoschiton Sirenko & Anseeuw, 2024, gen. nov." docType="treatment" docVersion="2" lastPageNumber="179" masterDocId="7D61FFDCFFE07A48002A0D41FFFBC248" masterDocTitle="A new genus of chitons (Mollusca: Polyplacophora) from the Barbados and Martinique Islands, Atlantic Ocean" masterLastPageNumber="183" masterPageNumber="177" pageNumber="178" updateTime="1737012058093" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="F88ACBC87ED4949922E5A7595D454F40">A new genus of chitons (Mollusca: Polyplacophora) from the Barbados and Martinique Islands, Atlantic Ocean</mods:title>
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<mods:name id="31F587B97B69C65206E555597459837E" type="personal">
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<mods:roleTerm id="31CCCA94249AD5354AF444B6EDE7F14E">Author</mods:roleTerm>
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<mods:namePart id="8298C391B22C60F4AC7648D5B1209672">Sirenko, Boris</mods:namePart>
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<mods:affiliation id="47E0492DC7C1641E67551F30A42180AE">Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, 199034, St. Petersburg, RUSSIAN FEDERATION. E-mail: marine @ zin. ru; https: // orcid. org / 0000 - 0002 - 2762 - 3430</mods:affiliation>
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<mods:roleTerm id="3F013DE6853DD8FCBB022266FE71A4D6">Author</mods:roleTerm>
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<mods:namePart id="2A7C3491F8DF9DB41269342702D0678F">Anseeuw, Bruno</mods:namePart>
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<mods:affiliation id="3E86C2446874B0578A7A31CC33B0C043">Scientific Associate, Malacology Section, Royal Belgian Institute of Natural Sciences, Brussels, BELGIUM. E-mail: chitonellus @ hotmail. com; https: // orcid. org / 0000 - 0002 - 6608 - 0686</mods:affiliation>
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<mods:title id="2E99A99466DAC5252FF0B2FE6274DDD5">Ruthenica, Russian Malacological Journal</mods:title>
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<mods:part id="0A245F4FCAAA0429CB50654340027224">
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<mods:date id="F39EA38D5CF004D86434007B068C77B0">2024</mods:date>
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<mods:number id="CFB8E404A83920D1045942676C048AE9">2024-09-24</mods:number>
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<mods:number id="DF7191B64177D0673A4EE773726D8366">4</mods:number>
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<mods:url id="726F9499AB8AECFAD2A527768E1D23FF">https://doi.org/10.35885/ruthenica.2024.34(4).4</mods:url>
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<mods:identifier id="4F4546FC2E18A7CDF64A3AAF20E98D7A" type="DOI">10.35885/ruthenica.2024.34(4).4</mods:identifier>
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<treatment id="815887A4FFE17A4A03B00DFCFDD3C01F" LSID="urn:lsid:plazi:treatment:815887A4FFE17A4A03B00DFCFDD3C01F" httpUri="http://treatment.plazi.org/id/815887A4FFE17A4A03B00DFCFDD3C01F" lastPageId="2" lastPageNumber="179" pageId="1" pageNumber="178">
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<subSubSection id="41EB6539FFE17A4903B00DFCFAB3C361" pageId="1" pageNumber="178" type="nomenclature">
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<paragraph id="094E36B2FFE17A4903B00DFCFB13C292" blockId="1.[922,1256,189,218]" box="[922,1256,189,218]" pageId="1" pageNumber="178">
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<heading id="520681DEFFE17A4903B00DFCFB13C292" box="[922,1256,189,218]" centered="true" fontSize="12" level="2" pageId="1" pageNumber="178" reason="6">
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<taxonomicName id="CEF14D31FFE17A4903B00DFCFB97C292" ID-CoL="CKZYB" authorityName="Sirenko & Anseeuw" authorityYear="2024" box="[922,1132,189,218]" class="Polyplacophora" family="Ischnochitonidae" genus="Barbadoschiton" higherTaxonomySource="CoL" kingdom="Animalia" order="Chitonida" pageId="1" pageNumber="178" phylum="Mollusca" rank="genus" status="gen. nov.">
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<emphasis id="3B85EAA0FFE17A4903B00DFCFB97C292" bold="true" box="[922,1132,189,218]" italics="true" pageId="1" pageNumber="178">Barbadoschiton</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="20B657DBFFE17A4904590DFFFB13C292" box="[1139,1256,190,218]" pageId="1" pageNumber="178" rank="genus">gen. nov.</taxonomicNameLabel>
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</heading>
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</paragraph>
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<paragraph id="094E36B2FFE17A49036D0DAEFAB3C361" blockId="1.[801,1377,239,2047]" pageId="1" pageNumber="178">
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Zoobank registration:
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urn:lsid:zoobank.org:act:
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<uuid id="7D570C67FFE17A49030B0C4EFAB3C361" box="[801,1352,271,297]" pageId="1" pageNumber="178">42E1D0F6-E3C7-47F0-AF0F-0CBCDE0AA429</uuid>
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</uri>
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</paragraph>
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</subSubSection>
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<subSubSection id="41EB6539FFE17A49036D0C71FA9AC3E3" pageId="1" pageNumber="178" type="type_taxon">
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<paragraph id="094E36B2FFE17A49036D0C71FC00C322" blockId="1.[801,1377,239,2047]" pageId="1" pageNumber="178">
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<emphasis id="3B85EAA0FFE17A49036D0C71FC1BC301" bold="true" box="[839,992,303,330]" pageId="1" pageNumber="178">
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<typeStatus id="D64A8810FFE17A49036D0C71FC79C302" box="[839,898,304,330]" pageId="1" pageNumber="178">Type</typeStatus>
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species
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</emphasis>
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:
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<taxonomicName id="CEF14D31FFE17A4903DE0C6EFCA2C323" ID-CoL="84X5X" authority="Ferreira, 1985" authorityName="Ferreira" authorityYear="1985" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" kingdom="Animalia" order="Chitonida" pageId="1" pageNumber="178" phylum="Mollusca" rank="species" species="bromleyi">
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<emphasis id="3B85EAA0FFE17A4903DE0C6EFB0FC301" box="[1012,1268,303,329]" italics="true" pageId="1" pageNumber="178">Ischnochiton bromleyi</emphasis>
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<bibRefCitation id="6D604B43FFE17A49052A0C6EFCA2C323" author="Ferreira A. J." pageId="1" pageNumber="178" pagination="189 - 219" refId="ref4203" refString="Ferreira A. J. 1985. Chiton (Mollusca: Polyplacophora) fauna of Barbados, West Indies, with the description of a new species. Bulletin of Marine Science, 36 (1): 189 - 219." type="journal article" year="1985">Ferreira, 1985</bibRefCitation>
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</taxonomicName>
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by monotypy.
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</paragraph>
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<paragraph id="094E36B2FFE17A49036D0C31FA9AC3E3" blockId="1.[801,1377,239,2047]" pageId="1" pageNumber="178">
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<emphasis id="3B85EAA0FFE17A49036D0C31FBD1C3C2" bold="true" box="[839,1066,368,394]" pageId="1" pageNumber="178">Genus distribution</emphasis>
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: Off
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<collectingCountry id="71E67622FFE17A4904430C31FB2DC3C2" box="[1129,1238,368,394]" name="Barbados" pageId="1" pageNumber="178">Barbados</collectingCountry>
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, Martinique Islands, Flower Garden Banks in the Gulf of Mexico.
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</paragraph>
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</subSubSection>
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<subSubSection id="41EB6539FFE17A49036D0CF0FAA0C71E" pageId="1" pageNumber="178" type="diagnosis">
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<paragraph id="094E36B2FFE17A49036D0CF0FAA0C71E" blockId="1.[801,1377,239,2047]" pageId="1" pageNumber="178">
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<emphasis id="3B85EAA0FFE17A49036D0CF0FC3AC383" bold="true" box="[839,961,433,459]" pageId="1" pageNumber="178">Diagnosis.</emphasis>
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Chiton very small with rather narrow and rather elevated, solid shell, lateral areas narrow and noticeably raised. Valves IV, V and VI are widest, and the valves II and III proportionately even longer. Central area of intermediate valves and antemucronal area of tail valve with teardrop-shaped granules arranged in quincunx, in pleural part, the granules are lined up in rows inclined towards the jugal part of valve resulting in a net quincunx-pattern. Each granule of central areas with oval megalaesthete pore. Head valve, lateral areas of intermediate valves and postmucronal areas of tail valve with oval granules arranged in quincunx as well. Each granule of head valve, with one megalaesthete pore and 4 micraes- thete pores. Apophyses semioval, wide, connected across the sinus by narrow jugal plate; Slit formula 7/1/4–5. Girdle dorsally covered with wide, strongly bent, regularly imbricating scales, with 10–14 distinct, flat riblets. Marginal fringe with five kinds of elements, among these long, fine needles and ribbed concave spicules.Ventral spicules of two kinds: main flattened, rectangular spicules with appendix on top and three weak longitudinal ribs on external part; and small distally pointed, smooth on the outer side and with two longitudinal grooves on the opposite side of the spicules. The latter are attached in transverse rows with their proximal part between the main ventral spicules. Major lateral teeth of radula with tridentate head, middle denticle longer than others.
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</paragraph>
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</subSubSection>
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<subSubSection id="41EB6539FFE17A49036D081CFAB5C73F" box="[839,1358,1373,1399]" pageId="1" pageNumber="178" type="etymology">
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<paragraph id="094E36B2FFE17A49036D081CFAB5C73F" blockId="1.[801,1377,239,2047]" box="[839,1358,1373,1399]" pageId="1" pageNumber="178">
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<emphasis id="3B85EAA0FFE17A49036D081CFC33C73F" bold="true" box="[839,968,1373,1399]" pageId="1" pageNumber="178">Etymology</emphasis>
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. Named after the
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<collectingCountry id="71E67622FFE17A4904BB081CFAB1C73F" box="[1169,1354,1373,1399]" name="Barbados Island" pageId="1" pageNumber="178">Barbados Island</collectingCountry>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="41EB6539FFE17A4A036D083CFDD3C01F" lastPageId="2" lastPageNumber="179" pageId="1" pageNumber="178" type="discussion">
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<paragraph id="094E36B2FFE17A4A036D083CFD63C2BE" blockId="1.[801,1377,239,2047]" lastBlockId="2.[172,749,188,600]" lastPageId="2" lastPageNumber="179" pageId="1" pageNumber="178">
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<emphasis id="3B85EAA0FFE17A49036D083CFC43C7DF" bold="true" box="[839,952,1405,1431]" pageId="1" pageNumber="178">Remarks</emphasis>
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. The genus
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<taxonomicName id="CEF14D31FFE17A490474083CFAE4C7D0" authorityName="Sirenko & Anseeuw" authorityYear="2024" box="[1118,1311,1405,1432]" class="Polyplacophora" family="Ischnochitonidae" genus="Barbadoschiton" higherTaxonomySource="CoL" kingdom="Animalia" order="Chitonida" pageId="1" pageNumber="178" phylum="Mollusca" rank="genus" status="gen. nov.">
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<emphasis id="3B85EAA0FFE17A490474083CFAE4C7D0" bold="true" box="[1118,1311,1405,1432]" italics="true" pageId="1" pageNumber="178">Barbadoschiton</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="20B657DBFFE17A490504083FFCAAC7F0" pageId="1" pageNumber="178" rank="genus">gen. nov.</taxonomicNameLabel>
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based on the set of marginal spicules, should be included in the family
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<taxonomicName id="CEF14D31FFE17A49046608FFFAF5C790" authorityName="Pilsbry" authorityYear="1893" box="[1100,1294,1470,1496]" class="Polyplacophora" family="Ischnochitonidae" kingdom="Animalia" order="Chitonida" pageId="1" pageNumber="178" phylum="Mollusca" rank="family">Ischnochitonidae</taxonomicName>
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, which includes an externally similar genus
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<taxonomicName id="CEF14D31FFE17A4904FB089FFCBEC451" authorityName="Kaas" authorityYear="1979" class="Polyplacophora" family="Ischnochitonidae" genus="Connexochiton" kingdom="Animalia" order="Chitonida" pageId="1" pageNumber="178" phylum="Mollusca" rank="genus">
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<emphasis id="3B85EAA0FFE17A4904FB089FFCBEC451" italics="true" pageId="1" pageNumber="178">Connexochiton</emphasis>
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</taxonomicName>
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with narrow high valves. From the last genus,
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<taxonomicName id="CEF14D31FFE17A49030B0B5EFC22C472" authorityName="Sirenko & Anseeuw" authorityYear="2024" box="[801,985,1567,1594]" class="Polyplacophora" family="Ischnochitonidae" genus="Barbadoschiton" higherTaxonomySource="CoL" kingdom="Animalia" order="Chitonida" pageId="1" pageNumber="178" phylum="Mollusca" rank="genus" status="gen. nov.">
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<emphasis id="3B85EAA0FFE17A49030B0B5EFC22C472" bold="true" box="[801,985,1567,1594]" italics="true" pageId="1" pageNumber="178">Barbadoschiton</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="20B657DBFFE17A4903CB0B61FBB3C472" box="[993,1096,1568,1594]" pageId="1" pageNumber="178" rank="genus">gen. nov.</taxonomicNameLabel>
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differs essentially by: 1) presence of unusual sculpture of tegmentum consisting of drop-shaped granules arranged in quincuncial order on central areas of intermediate valves; 2) structure of teeth of radula with tricuspid head of major lateral tooth; 3) form and structure of
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<specimenCount id="1FF7FD3BFFE17A49051C0B83FCA7C4B4" count="2" pageId="1" pageNumber="178" type="generic" typeStatus="types">two types</specimenCount>
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of ventral spicules. From other genera of the family
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<taxonomicName id="CEF14D31FFE17A4903590A43FBCEC554" authorityName="Pilsbry" authorityYear="1893" box="[883,1077,1794,1820]" class="Polyplacophora" family="Ischnochitonidae" kingdom="Animalia" order="Chitonida" pageId="1" pageNumber="178" phylum="Mollusca" rank="family">Ischnochitonidae</taxonomicName>
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, the new genus differs by: 1) the presence of drop-shaped granules located on the central areas arranged quincuncially, with a single pore of megalaesthete; 2) the presence of ribbed marginal spicules with a longitudinal groove; 3) the presence of flattened spicules with three longitudinal ribs on the ventral part of the girdle; 4) the presence of additional ventral sharply pointed spicules with two longitudinal grooves arranged in transverse rows between the main flattened ventral spicules.
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</paragraph>
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<paragraph id="094E36B2FFE27A4A00FE0DBDFDD3C01F" blockId="2.[172,749,188,600]" pageId="2" pageNumber="179">
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The vast majority of the species of the family Cal- listoplacidae exhibit radial ribs on the head valves, lateral areas of the intermediate valves and on the postmucronal areas of the tail valves. Additionally they have longitudinal ribs on the central areas of the intermediate valves.
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<taxonomicName id="CEF14D31FFE27A4A01B90CDDFDB0C3FF" authorityName="Sirenko & Anseeuw" authorityYear="2024" box="[403,587,412,439]" class="Polyplacophora" family="Ischnochitonidae" genus="Barbadoschiton" higherTaxonomySource="CoL" kingdom="Animalia" order="Chitonida" pageId="2" pageNumber="179" phylum="Mollusca" rank="genus" status="gen. nov.">
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<emphasis id="3B85EAA0FFE27A4A01B90CDDFDB0C3FF" bold="true" box="[403,587,412,439]" italics="true" pageId="2" pageNumber="179">Barbadoschiton</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="20B657DBFFE27A4A027A0CDFFD4FC3F0" box="[592,692,414,440]" pageId="2" pageNumber="179" rank="genus">gen. nov.</taxonomicNameLabel>
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does not have such ribs. From the genus
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<taxonomicName id="CEF14D31FFE27A4A02630CFCFE23C3BF" authority="Sirenko et Anseeuw, 2021" authorityName="Sirenko et Anseeuw" authorityYear="2021" class="Polyplacophora" family="Callistoplacidae" genus="Caribbochiton" kingdom="Animalia" order="Chitonida" pageId="2" pageNumber="179" phylum="Mollusca" rank="genus">
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<emphasis id="3B85EAA0FFE27A4A02630CFCFD17C39F" box="[585,748,445,471]" italics="true" pageId="2" pageNumber="179">Caribbochiton</emphasis>
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Sirenko et Anseeuw, 2021
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</taxonomicName>
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, also lacking radial ribs, but having longitudinal ribs on the central areas of the intermediate valves, the new genus differs by the absence of any ribs on the valves.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |