256 lines
27 KiB
XML
256 lines
27 KiB
XML
<document id="B6081434688D47A2E59A88E183D8EE92" ID-DOI="10.11646/zootaxa.4033.2.1" ID-GBIF-Dataset="5f83c37c-162d-42a0-9698-f35278de98b8" ID-ISSN="1175-5326" ID-Zenodo-Dep="241610" ID-ZooBank="46694533-415A-4469-866E-B968502198A7" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461296405288" checkinUser="plazi" docAuthor="Sirenko, Boris" docDate="2015" docId="038887DABA3C1C1AFF481598FD6FFB9E" docLanguage="en" docName="zt04033p202.pdf" docOrigin="Zootaxa 4033 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Leptochiton sigwartae Sirenko, 2015, n. sp." docType="treatment" docVersion="9" lastPageNumber="195" masterDocId="FFB1FFA2BA161C36FFDF150FFF98FF8E" masterDocTitle="Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters" masterLastPageNumber="202" masterPageNumber="151" pageNumber="193" updateTime="1698616597089" updateUser="plazi">
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<mods:titleInfo id="A20DA6A90B0BC3FE969656C1981F87BD">
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<mods:title id="DA262D1AE0254C8C9599083660A433F3">Shallow and deep-sea chitons of the genus Leptochiton Gray, 1847 (Mollusca: Polyplacophora: Lepidopleurida) from Peruvian and Chilean waters</mods:title>
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</mods:titleInfo>
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<mods:name id="5AE2BB4DD6F7348F45FAD7E4EB434280" type="personal">
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<mods:roleTerm id="D9F5A5AD83ACB9BD273A467BE7F420F9">Author</mods:roleTerm>
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<mods:namePart id="B2732D5AD7038A42500BED2A74872FD8">Sirenko, Boris</mods:namePart>
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<mods:typeOfResource id="C0B369A3D90C77E45763700D944C3FFC">text</mods:typeOfResource>
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<mods:title id="91554E31C89FFAB0A770C39D25B4EF45">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="4D3DFD331FFC31791D2F3BC8CFE1B50B">
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<mods:date id="21008862727ACC098AF43FF48745639E">2015</mods:date>
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<mods:number id="5D07FCB48E0B73418444DBB6A0D163DA">4033</mods:number>
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</mods:detail>
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<mods:detail id="4DF20590DB13C9F20EDD95F75F31B02B" type="issue">
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<mods:number id="152E5C8C970243362BFD209DC9EF7832">2</mods:number>
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<mods:classification id="C1E759CB073E8971A8C1BE7CC3DF3AFF">journal article</mods:classification>
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<mods:identifier id="9468BDDC0920C75169B117D95CF871B6" type="DOI">10.11646/zootaxa.4033.2.1</mods:identifier>
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<mods:identifier id="8CF7F0B49435F294B2F3F793A1DC6532" type="GBIF-Dataset">5f83c37c-162d-42a0-9698-f35278de98b8</mods:identifier>
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<mods:identifier id="BC2055432BE9F75EB0329695C3186CD1" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="B60DA0180ED3A3C16E90CD0230760A5C" type="Zenodo-Dep">241610</mods:identifier>
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<mods:identifier id="2073E3645DF5C1CDD92522981DCF6B5F" type="ZooBank">46694533-415A-4469-866E-B968502198A7</mods:identifier>
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</mods:mods>
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<treatment id="038887DABA3C1C1AFF481598FD6FFB9E" ID-DOI="http://doi.org/10.5281/zenodo.5687245" ID-GBIF-Taxon="119642625" ID-Zenodo-Dep="5687245" LSID="urn:lsid:plazi:treatment:038887DABA3C1C1AFF481598FD6FFB9E" httpUri="http://treatment.plazi.org/id/038887DABA3C1C1AFF481598FD6FFB9E" lastPageId="44" lastPageNumber="195" pageId="42" pageNumber="193">
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<subSubSection id="C33B6547BA3C1C1CFF481598FACFFEB1" pageId="42" pageNumber="193" type="nomenclature">
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<paragraph id="8B9E36CCBA3C1C1CFF481598FE74FF3C" blockId="42.[151,492,151,211]" box="[151,492,151,178]" pageId="42" pageNumber="193">
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<heading id="D0D681A0BA3C1C1CFF481598FE74FF3C" bold="true" box="[151,492,151,178]" fontSize="11" level="1" pageId="42" pageNumber="193" reason="1">
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||
<emphasis id="B955EADEBA3C1C1CFF481598FE74FF3C" bold="true" box="[151,492,151,178]" pageId="42" pageNumber="193">
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||
<taxonomicName id="4C214D4FBA3C1C1CFF481598FE3AFF3F" ID-CoL="3TLZM" box="[151,418,151,177]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="42" pageNumber="193" phylum="Mollusca" rank="species" species="sigwartae" status="sp. nov.">
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<emphasis id="B955EADEBA3C1C1CFF481598FE3AFF3F" bold="true" box="[151,418,151,177]" italics="true" pageId="42" pageNumber="193">Leptochiton sigwartae</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A26657A5BA3C1C1CFE751597FE74FF3C" box="[426,492,152,178]" pageId="42" pageNumber="193" rank="species">n. sp.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="8B9E36CCBA3C1C1CFF4815B5FEBFFF5D" blockId="42.[151,492,151,211]" box="[151,295,186,211]" pageId="42" pageNumber="193">
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||
(
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<figureCitation id="131A2A49BA3C1C1CFF4015B5FE87FF5D" box="[159,287,186,211]" captionStart-0="FIGURE 37" captionStart-1="FIGURE 38" captionStart-2="FIGURE 39" captionStartId-0="41.[151,250,1940,1962]" captionStartId-1="42.[151,250,1898,1920]" captionStartId-2="43.[151,250,1943,1965]" captionTargetBox-0="[174,1401,442,1906]" captionTargetBox-1="[156,1434,777,1869]" captionTargetBox-2="[293,1298,212,1917]" captionTargetId-0="figure@41.[165,1413,433,1920]" captionTargetId-1="figure@42.[151,1435,767,1876]" captionTargetId-2="figure@43.[273,1309,193,1933]" captionTargetPageId-0="41" captionTargetPageId-1="42" captionTargetPageId-2="43" captionText-0="FIGURE 37. Leptochiton sigwartae n. sp. Holotype, (ZISP 2205). Peru-Chile Trench, RV Akademik Karpinskiy, st. 105, BL— 17.0 mm. A. Valve I, dorsal view; B. Valve V, dorsal view; C. Valve VIII, dorsal view; D. Valve VI, ventral view; E. Valve V, detail of tegmentum surface of central area; F. Valve VIII, lateral view; G. Valve V, rostral view." captionText-1="FIGURE 38. Leptochiton sigwartae n. sp. Holotype, (ZISP 2205). Peru-Chile Trench, RV Akademik Karpinskiy, st. 105, BL— 17.0 mm. A. Valve VIII, detail of tegmentum in antemucronal area; B, C. Dorsal, marginal and ventral scales and needles; D. Central portion of radula." captionText-2="FIGURE 39. Leptochiton sigwartae n. sp. Holotype, (ZISP 2205). Peru-Chile Trench, RV Akademik Karpinskiy, st. 105, BL— 17.0 mm. A. Sutural needle; B. Dorsal scale; C. Marginal needle; D. Ventral scale; E. Aesthete group in central area; F. Central and first lateral teeth; G, H. Heads of major lateral tooth. Scale bar 100 µm (A – D, F – H)." httpUri-0="https://zenodo.org/record/241647/files/figure.png" httpUri-1="https://zenodo.org/record/241648/files/figure.png" httpUri-2="https://zenodo.org/record/241649/files/figure.png" pageId="42" pageNumber="193">Figs 37–39</figureCitation>
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)
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</paragraph>
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<paragraph id="8B9E36CCBA3C1C1CFF48140DFACFFEB1" blockId="42.[151,1437,258,715]" pageId="42" pageNumber="193">
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<emphasis id="B955EADEBA3C1C1CFF48140DFF7BFE95" bold="true" box="[151,227,258,283]" pageId="42" pageNumber="193">
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<typeStatus id="549A886EBA3C1C1CFF48140DFF47FE95" box="[151,223,258,283]" pageId="42" pageNumber="193">Types</typeStatus>
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.
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</emphasis>
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<typeStatus id="549A886EBA3C1C1CFF35140DFECAFE95" box="[234,338,258,283]" pageId="42" pageNumber="193" type="holotype">Holotype</typeStatus>
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(ZISP 2205), now disarticulated consisting of SEM stub of valves I, V, VI, VIII, part of perinotum and radula, mount of part of perinotum and radula and vial with other valves, and one
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<typeStatus id="549A886EBA3C1C1CFB821428FB25FEB1" box="[1117,1213,295,319]" pageId="42" pageNumber="193" type="paratype">paratype</typeStatus>
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(ZISP 2206).
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</paragraph>
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</subSubSection>
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<subSubSection id="C33B6547BA3C1C1CFF181445FB44FEEC" box="[199,1244,330,355]" pageId="42" pageNumber="193" type="materials_examined">
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<paragraph id="8B9E36CCBA3C1C1CFF181445FB44FEEC" blockId="42.[151,1437,258,715]" box="[199,1244,330,355]" pageId="42" pageNumber="193">
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<emphasis id="B955EADEBA3C1C1CFF181445FEFDFEED" bold="true" box="[199,357,330,355]" pageId="42" pageNumber="193">
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<typeStatus id="549A886EBA3C1C1CFF181445FE9AFEED" box="[199,258,330,355]" pageId="42" pageNumber="193">Type</typeStatus>
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locality.
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</emphasis>
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<collectingCountry id="F336765CBA3C1C1CFEB31444FE3AFEEC" box="[364,418,331,354]" name="Peru" pageId="42" pageNumber="193">Peru</collectingCountry>
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, RV Akademik Alexander Karpinskiy, st. 105,
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<geoCoordinate id="EE15500BBA3C1C1CFC6E1445FB88FEED" box="[945,1040,330,355]" direction="south" orientation="latitude" pageId="42" pageNumber="193" precision="925" value="-6.6833334">06°41’S</geoCoordinate>
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,
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<geoCoordinate id="EE15500BBA3C1C1CFBC31444FB1BFEED" box="[1052,1155,331,355]" direction="west" orientation="longitude" pageId="42" pageNumber="193" precision="925" value="-80.8">80°48’W</geoCoordinate>
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,
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<specimenCount id="9D27FD45BA3C1C1CFB511444FB44FEEC" box="[1166,1244,331,355]" pageId="42" pageNumber="193" type="generic">
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||
<quantity id="4CD99B29BA3C1C1CFB511444FB40FEEC" box="[1166,1240,331,355]" metricMagnitude="2" metricUnit="m" metricValue="8.22" pageId="42" pageNumber="193" unit="m" value="822.0">822 m</quantity>
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.
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</specimenCount>
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</paragraph>
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</subSubSection>
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<subSubSection id="C33B6547BA3C1C1CFF181461FD0AFE25" pageId="42" pageNumber="193" type="etymology">
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<paragraph id="8B9E36CCBA3C1C1CFF181461FD0AFE25" blockId="42.[151,1437,258,715]" pageId="42" pageNumber="193">
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<emphasis id="B955EADEBA3C1C1CFF181461FED6FE09" bold="true" box="[199,334,366,391]" pageId="42" pageNumber="193">Etymology.</emphasis>
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Named after Dr. Julia Sigwart, Queen’s University Belfast, Marine Laboratory,
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<collectingCountry id="F336765CBA3C1C1CFB061461FA00FE09" box="[1241,1432,366,391]" name="United Kingdom" pageId="42" pageNumber="193">Northern Ireland</collectingCountry>
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, who is a good specialist on primitive chitons.
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</paragraph>
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</subSubSection>
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<subSubSection id="C33B6547BA3C1C1CFF1814B9FEC3FE7D" pageId="42" pageNumber="193" type="materials_examined">
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||
<paragraph id="8B9E36CCBA3C1C1CFF1814B9FEC3FE7D" blockId="42.[151,1437,258,715]" pageId="42" pageNumber="193">
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||
<emphasis id="B955EADEBA3C1C1CFF1814B9FE29FE41" bold="true" box="[199,433,438,463]" pageId="42" pageNumber="193">Material examined.</emphasis>
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<typeStatus id="549A886EBA3C1C1CFE6514B9FDBDFE41" box="[442,549,438,463]" pageId="42" pageNumber="193" type="holotype">Holotype</typeStatus>
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, BL—
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<quantity id="4CD99B29BA3C1C1CFDAB14B8FD5AFE40" box="[628,706,439,463]" metricMagnitude="-2" metricUnit="m" metricValue="1.7" pageId="42" pageNumber="193" unit="mm" value="17.0">17 mm</quantity>
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||
and
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||
<typeStatus id="549A886EBA3C1C1CFD2414B8FCC3FE41" box="[763,859,439,463]" pageId="42" pageNumber="193" type="paratype">paratype</typeStatus>
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||
BL—
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||
<quantity id="4CD99B29BA3C1C1CFC7814B8FC6EFE40" box="[935,1014,439,463]" metricMagnitude="-2" metricUnit="m" metricValue="1.7" pageId="42" pageNumber="193" unit="mm" value="17.0">17 mm</quantity>
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||
, from
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<typeStatus id="549A886EBA3C1C1CFB9D14B8FBEAFE41" box="[1090,1138,439,463]" pageId="42" pageNumber="193">type</typeStatus>
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||
locality,
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<date id="FF9F100CBA3C1C1CFB0214B9FA00FE41" box="[1245,1432,438,463]" pageId="42" pageNumber="193" value="1987-09">September 1987</date>
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, leg.
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<collectingCountry id="F336765CBA3C1C1CFF1814D4FF46FE7D" box="[199,222,475,499]" name="Iceland" pageId="42" pageNumber="193">O</collectingCountry>
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. Alexeeva.
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</paragraph>
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</subSubSection>
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<subSubSection id="C33B6547BA3C1C1CFF1814F1FD50FD99" box="[199,712,510,535]" pageId="42" pageNumber="193" type="distribution">
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<paragraph id="8B9E36CCBA3C1C1CFF1814F1FD50FD99" blockId="42.[151,1437,258,715]" box="[199,712,510,535]" pageId="42" pageNumber="193">
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||
<emphasis id="B955EADEBA3C1C1CFF1814F1FEF8FD99" bold="true" box="[199,352,510,535]" pageId="42" pageNumber="193">Distribution.</emphasis>
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Only known from
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<typeStatus id="549A886EBA3C1C1CFDE814F0FDFFFD99" box="[567,615,511,535]" pageId="42" pageNumber="193">type</typeStatus>
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locality.
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</paragraph>
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</subSubSection>
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<subSubSection id="C33B6547BA3C1C1CFF18172DFC5DFD44" pageId="42" pageNumber="193" type="diagnosis">
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<paragraph id="8B9E36CCBA3C1C1CFF18172DFC5DFD44" blockId="42.[151,1437,258,715]" pageId="42" pageNumber="193">
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<emphasis id="B955EADEBA3C1C1CFF18172DFED9FDB5" bold="true" box="[199,321,546,571]" pageId="42" pageNumber="193">Diagnosis.</emphasis>
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Animal medium in size, elongate oval. Valves very highly elevated, carinated. Tail valve distinctly wider than head valve, with central mucro. Tegmentum with raised granules, closely adjacent and arranged quincuncially. Each granule with one megalaesthete and four micraesthetes in front. Dorsal scales with two distinct riblets. Central teeth of radula wide and with scissura low on base. Third uncinal teeth narrow distally. Major lateral teeth with unidentate head. Thirteen gills per side from valve VI to anus.
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</paragraph>
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</subSubSection>
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||
<caption id="DF5E6644BA3C1C1CFF481265FE01F833" httpUri="https://zenodo.org/record/241648/files/figure.png" pageId="42" pageNumber="193" targetBox="[156,1434,777,1869]" targetPageId="42">
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||
<paragraph id="8B9E36CCBA3C1C1CFF481265FE01F833" blockId="42.[151,1436,1898,1981]" pageId="42" pageNumber="193">
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||
<emphasis id="B955EADEBA3C1C1CFF481265FE80F80E" bold="true" box="[151,280,1898,1920]" pageId="42" pageNumber="193">FIGURE 38</emphasis>
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.
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<taxonomicName id="4C214D4FBA3C1C1CFEFA1265FD90F80E" box="[293,520,1898,1920]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="42" pageNumber="193" phylum="Mollusca" rank="species" species="sigwartae" status="sp. nov.">
|
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<emphasis id="B955EADEBA3C1C1CFEFA1265FD90F80E" box="[293,520,1898,1920]" italics="true" pageId="42" pageNumber="193">Leptochiton sigwartae</emphasis>
|
||
</taxonomicName>
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||
<emphasis id="B955EADEBA3C1C1CFDD21265FDDEF80E" bold="true" box="[525,582,1898,1920]" pageId="42" pageNumber="193">
|
||
<taxonomicNameLabel id="A26657A5BA3C1C1CFDD21265FDDEF80E" box="[525,582,1898,1920]" pageId="42" pageNumber="193" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
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Holotype, (ZISP 2205). Peru-Chile Trench, RV Akademik Karpinskiy, st.105, BL— 17.0 mm.
|
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<emphasis id="B955EADEBA3C1C1CFF201287FE89F810" bold="true" box="[255,273,1928,1950]" pageId="42" pageNumber="193">A</emphasis>
|
||
. Valve VIII, detail of tegmentum in antemucronal area;
|
||
<emphasis id="B955EADEBA3C1C1CFC8E1287FC1AF810" bold="true" box="[849,898,1928,1950]" pageId="42" pageNumber="193">B, C</emphasis>
|
||
. Dorsal, marginal and ventral scales and needles;
|
||
<emphasis id="B955EADEBA3C1C1CFA5C1287FA0DF810" bold="true" box="[1411,1429,1928,1950]" pageId="42" pageNumber="193">D</emphasis>
|
||
. Central portion of radula.
|
||
</paragraph>
|
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</caption>
|
||
<caption id="DF5E6644BA3D1C1DFF481298FB8EF864" httpUri="https://zenodo.org/record/241649/files/figure.png" pageId="43" pageNumber="194" targetBox="[293,1298,212,1917]" targetPageId="43">
|
||
<paragraph id="8B9E36CCBA3D1C1DFF481298FB8EF864" blockId="43.[151,1436,1943,2026]" pageId="43" pageNumber="194">
|
||
<emphasis id="B955EADEBA3D1C1DFF481298FE80F823" bold="true" box="[151,280,1943,1965]" pageId="43" pageNumber="194">FIGURE 39</emphasis>
|
||
.
|
||
<taxonomicName id="4C214D4FBA3D1C1DFEFA1298FD90F823" box="[293,520,1943,1965]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="43" pageNumber="194" phylum="Mollusca" rank="species" species="sigwartae" status="sp. nov.">
|
||
<emphasis id="B955EADEBA3D1C1DFEFA1298FD90F823" box="[293,520,1943,1965]" italics="true" pageId="43" pageNumber="194">Leptochiton sigwartae</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B955EADEBA3D1C1DFDD21298FDDEF823" bold="true" box="[525,582,1943,1965]" pageId="43" pageNumber="194">
|
||
<taxonomicNameLabel id="A26657A5BA3D1C1DFDD21298FDDEF823" box="[525,582,1943,1965]" pageId="43" pageNumber="194" rank="species">n. sp.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Holotype, (ZISP 2205). Peru-Chile Trench, RV Akademik Karpinskiy, st.105, BL— 17.0 mm.
|
||
<emphasis id="B955EADEBA3D1C1DFF2212BAFE97F845" bold="true" box="[253,271,1973,1995]" pageId="43" pageNumber="194">A</emphasis>
|
||
. Sutural needle;
|
||
<emphasis id="B955EADEBA3D1C1DFE6512BAFE53F845" bold="true" box="[442,459,1973,1995]" pageId="43" pageNumber="194">B</emphasis>
|
||
. Dorsal scale;
|
||
<emphasis id="B955EADEBA3D1C1DFDBE12BAFDEBF845" bold="true" box="[609,627,1973,1995]" pageId="43" pageNumber="194">C</emphasis>
|
||
. Marginal needle;
|
||
<emphasis id="B955EADEBA3D1C1DFCEE12BAFCDBF845" bold="true" box="[817,835,1973,1995]" pageId="43" pageNumber="194">D</emphasis>
|
||
. Ventral scale;
|
||
<emphasis id="B955EADEBA3D1C1DFC0112BAFC77F845" bold="true" box="[990,1007,1973,1995]" pageId="43" pageNumber="194">E</emphasis>
|
||
. Aesthete group in central area;
|
||
<emphasis id="B955EADEBA3D1C1DFAE812BAFADCF845" bold="true" box="[1335,1348,1973,1995]" pageId="43" pageNumber="194">F</emphasis>
|
||
. Central and first lateral teeth;
|
||
<emphasis id="B955EADEBA3D1C1DFEAA12DBFE3BF864" bold="true" box="[373,419,2004,2026]" pageId="43" pageNumber="194">G, H</emphasis>
|
||
. Heads of major lateral tooth. Scale bar 100 µm (A–D, F–H).
|
||
</paragraph>
|
||
</caption>
|
||
<subSubSection id="C33B6547BA3A1C1AFF181598FCB1FD42" pageId="44" pageNumber="195" type="description">
|
||
<paragraph id="8B9E36CCBA3A1C1AFF181598FDAFFEB1" blockId="44.[151,1437,151,1040]" pageId="44" pageNumber="195">
|
||
<emphasis id="B955EADEBA3A1C1AFF181598FEC1FF3E" bold="true" box="[199,345,151,176]" pageId="44" pageNumber="195">Description.</emphasis>
|
||
<typeStatus id="549A886EBA3A1C1AFEBE1598FE51FF3E" box="[353,457,151,176]" pageId="44" pageNumber="195" type="holotype">Holotype</typeStatus>
|
||
17.0 x 6.0 mm. Valves thick, carinated, very highly elevated (elevation ratio
|
||
<quantity id="4CD99B29BA3A1C1AFA931598FA04FF3E" box="[1356,1436,151,176]" metricMagnitude="-2" metricUnit="m" metricValue="1.5748" pageId="44" pageNumber="195" unit="in" value="0.62">0.62 in</quantity>
|
||
valve V), slightly beaked. Color of tegmentum white. Head valve semicircular, narrower than tail valve (ratio of width of tail valve to width of head valve 1.1). Intermediate valve rectangular, lateral area not raised, anterior margin concave, lateral margins rounded, posterior margin slightly beaked. Tail valve triangular, mucro central, postmucronal slope slightly concave.
|
||
</paragraph>
|
||
<paragraph id="8B9E36CCBA3A1C1AFF181442FB49FE22" blockId="44.[151,1437,151,1040]" pageId="44" pageNumber="195">Tegmentum uniformly sculptured with raised, hardly separated, quincuncially arranged granules, except for pleural areas where granules arranged in oblique rows. Each granule with one megalaesthete and four micraesthetes in front, pores of megalaesthete (8 µm) a little larger than micraesthetes (5–6 µm).</paragraph>
|
||
<paragraph id="8B9E36CCBA3A1C1AFF1814B8FC51FE5E" blockId="44.[151,1437,151,1040]" box="[199,969,439,464]" pageId="44" pageNumber="195">Articulamentum well developed, apophyses small, widely separated.</paragraph>
|
||
<paragraph id="8B9E36CCBA3A1C1AFF1814D3FEAAFDEE" blockId="44.[151,1437,151,1040]" pageId="44" pageNumber="195">
|
||
Girdle narrow (about
|
||
<quantity id="4CD99B29BA3A1C1AFE6114D3FD8EFE7A" box="[446,534,476,501]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="44" pageNumber="195" unit="mm" value="0.5">0.5 mm</quantity>
|
||
near valve V 9.4% of total width, dorsally covered with sharply pointed scales (68–
|
||
<date id="FF9F100CBA3A1C1AFF1614F0FF7EFD96" box="[201,230,511,536]" pageId="44" pageNumber="195" value="1970-10-25">70</date>
|
||
x 25 µm) with two distinct riblets and numerous scattered long needles (150
|
||
<date id="FF9F100CBA3A1C1AFBBF170FFB0AFD96" box="[1120,1170,512,536]" pageId="44" pageNumber="195" value="1918-10">x 18</date>
|
||
µm). Marginal needles shorter than dorsal ones (110–113
|
||
<date id="FF9F100CBA3A1C1AFDC7172AFDD1FDB2" box="[536,585,548,572]" pageId="44" pageNumber="195" value="1917-10">x 17</date>
|
||
µm). Ventrally girdle covered with elongate, smooth, bluntly pointed scales (
|
||
<date id="FF9F100CBA3A1C1AFF401747FF6CFDEE" box="[159,244,584,608]" pageId="44" pageNumber="195" value="1980-10-18">80 x 18</date>
|
||
µm).
|
||
</paragraph>
|
||
<paragraph id="8B9E36CCBA3A1C1AFF181763FB01FD26" blockId="44.[151,1437,151,1040]" pageId="44" pageNumber="195">
|
||
Radula of
|
||
<typeStatus id="549A886EBA3A1C1AFEE01763FE39FD0B" box="[319,417,620,645]" pageId="44" pageNumber="195" type="holotype">holotype</typeStatus>
|
||
<quantity id="4CD99B29BA3A1C1AFE751763FD99FD0A" box="[426,513,620,644]" metricMagnitude="-3" metricUnit="m" metricValue="4.7" pageId="44" pageNumber="195" unit="mm" value="4.7">4.7 mm</quantity>
|
||
long with 25 transverse rows of mature teeth. Central tooth wide and with basal notch. Major lateral teeth with unidentate cusps. Distal part of third uncinal teeth narrowed.
|
||
</paragraph>
|
||
<paragraph id="8B9E36CCBA3A1C1AFF1817BBFCB1FD42" blockId="44.[151,1437,151,1040]" box="[199,809,692,717]" pageId="44" pageNumber="195">Thirteen gills per side arranged from valve VI to anus.</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C33B6547BA3A1C1AFF1817D8FD6FFB9E" pageId="44" pageNumber="195" type="discussion">
|
||
<paragraph id="8B9E36CCBA3A1C1AFF1817D8FD6FFB9E" blockId="44.[151,1437,151,1040]" pageId="44" pageNumber="195">
|
||
<emphasis id="B955EADEBA3A1C1AFF1817D8FEA3FD7E" bold="true" box="[199,315,727,752]" pageId="44" pageNumber="195">Remarks.</emphasis>
|
||
The new species superficially resembles
|
||
<emphasis id="B955EADEBA3A1C1AFCC817D8FB31FD7E" box="[791,1193,727,752]" italics="true" pageId="44" pageNumber="195">
|
||
<taxonomicName id="4C214D4FBA3A1C1AFCC817D8FB91FD7E" box="[791,1033,727,752]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="belknapi">Leptochiton belknapi</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C214D4FBA3A1C1AFBC917D6FB3DFD7E" box="[1046,1189,729,752]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="giganteus">L. giganteus</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
and
|
||
<taxonomicName id="4C214D4FBA3A1C1AFB3C17D6FAF7FD7E" box="[1251,1391,729,752]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="japonicus">
|
||
<emphasis id="B955EADEBA3A1C1AFB3C17D6FAF7FD7E" box="[1251,1391,729,752]" italics="true" pageId="44" pageNumber="195">L. japonicus</emphasis>
|
||
</taxonomicName>
|
||
but differs from them in having much higher valves and a triangular tail valve which is wider than the head valve. Moreover it differs from
|
||
<taxonomicName id="4C214D4FBA3A1C1AFE6E162EFDB7FCB6" box="[433,559,799,824]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="belknapi">
|
||
<emphasis id="B955EADEBA3A1C1AFE6E162EFDB7FCB6" box="[433,559,799,824]" italics="true" pageId="44" pageNumber="195">L. belknapi</emphasis>
|
||
</taxonomicName>
|
||
in having more micraesthetes per megalaesthete and a narrowed distal part of third uncinal teeth of the radula and from
|
||
<taxonomicName id="4C214D4FBA3A1C1AFDB2164AFD60FCD2" box="[621,760,837,860]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="japonicus">
|
||
<emphasis id="B955EADEBA3A1C1AFDB2164AFD60FCD2" box="[621,760,837,860]" italics="true" pageId="44" pageNumber="195">L. japonicus</emphasis>
|
||
</taxonomicName>
|
||
by fewer riblets on the dorsal scales and in the arrangement of granules which are closer to each other.
|
||
<taxonomicName id="4C214D4FBA3A1C1AFDA71668FCEBFC0E" box="[632,883,871,896]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="sigwartae">
|
||
<emphasis id="B955EADEBA3A1C1AFDA71668FCEBFC0E" box="[632,883,871,896]" italics="true" pageId="44" pageNumber="195">Leptochiton sigwartae</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName id="4C214D4FBA3A1C1AFBD81666FB0AFC0E" box="[1031,1170,873,896]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="giganteus">
|
||
<emphasis id="B955EADEBA3A1C1AFBD81666FB0AFC0E" box="[1031,1170,873,896]" italics="true" pageId="44" pageNumber="195">L. giganteus</emphasis>
|
||
</taxonomicName>
|
||
in having a wider jugal sinus, a shorter antemucronal area, a higher shell and two ribs on the dorsal scales (no ribs in
|
||
<taxonomicName id="4C214D4FBA3A1C1AFB221682FA14FC2A" box="[1277,1420,909,932]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="giganteus">
|
||
<emphasis id="B955EADEBA3A1C1AFB221682FA14FC2A" box="[1277,1420,909,932]" italics="true" pageId="44" pageNumber="195">L. giganteus</emphasis>
|
||
</taxonomicName>
|
||
).
|
||
<taxonomicName id="4C214D4FBA3A1C1AFF4816A0FE3FFC46" box="[151,423,943,968]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="halistreptus">
|
||
<emphasis id="B955EADEBA3A1C1AFF4816A0FE3FFC46" box="[151,423,943,968]" italics="true" pageId="44" pageNumber="195">Leptochiton halistreptus</emphasis>
|
||
</taxonomicName>
|
||
differs from the new species in having an extensive row of gills arranged from the anus to valve V, two ribs on the ventral scales and a less elevated shell. For differences of
|
||
<taxonomicName id="4C214D4FBA3A1C1AFB9C16DAFB48FC62" box="[1091,1232,981,1004]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="sigwartae">
|
||
<emphasis id="B955EADEBA3A1C1AFB9C16DAFB48FC62" box="[1091,1232,981,1004]" italics="true" pageId="44" pageNumber="195">L. sigwartae</emphasis>
|
||
</taxonomicName>
|
||
from
|
||
<taxonomicName id="4C214D4FBA3A1C1AFAC916DAFA04FC63" box="[1302,1436,980,1005]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="macleani">
|
||
<emphasis id="B955EADEBA3A1C1AFAC916DAFA04FC63" box="[1302,1436,980,1005]" italics="true" pageId="44" pageNumber="195">L. macleani</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C214D4FBA3A1C1AFF1916F6FEFFFB9E" box="[198,359,1015,1040]" class="Polyplacophora" family="Leptochitonidae" genus="Leptochiton" kingdom="Animalia" order="Lepidopleurida" pageId="44" pageNumber="195" phylum="Mollusca" rank="species" species="mutschkeae">
|
||
<emphasis id="B955EADEBA3A1C1AFF1916F6FEFFFB9E" box="[198,359,1015,1040]" italics="true" pageId="44" pageNumber="195">L. mutschkeae</emphasis>
|
||
</taxonomicName>
|
||
see in the remarks to those species.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |