215 lines
24 KiB
XML
215 lines
24 KiB
XML
<document id="5253AEE6A4476F1670D44C20D43634B8" ID-DOI="10.1080/00222930410001695123" ID-ISSN="1464-5262" ID-Zenodo-Dep="10097787" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1629856180639" checkinUser="felipe" docAuthor="Oliver, P. Graham & Holmes, Anna" docDate="2004" docId="03B33A71563EFF8B3515DA2117DCFD44" docLanguage="en" docName="JNatHist.38.23-24.3175-3227.pdf" docOrigin="Journal of Natural History 38 (23)" docSource="http://dx.doi.org/10.1080/00222930410001695123" docStyle="DocumentStyle:443144A73DAE3E092C51A378E4CD0138.2:JNatHist.2003-2004.journal_article.1cover" docStyleId="443144A73DAE3E092C51A378E4CD0138" docStyleName="JNatHist.2003-2004.journal_article.1cover" docStyleVersion="2" docTitle="Cratis thylicus Oliver & Holmes, 2004, n. sp." docType="treatment" docVersion="3" lastPageNumber="3186" masterDocId="FF8A42095634FF873701DC0B1465FFB5" masterDocTitle="Cryptic bivalves with descriptions of new species from the Rodrigues lagoon" masterLastPageNumber="3227" masterPageNumber="3175" pageNumber="3184" updateTime="1699587990154" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:mods id="D19C549E1E06ADD028A2BB33C52F81CD" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="4B82DEB1FAD9E285BF18EAEAF843A15E">
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<mods:title id="C490D45272E4297390B91451E85A2AA2">Cryptic bivalves with descriptions of new species from the Rodrigues lagoon</mods:title>
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</mods:titleInfo>
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<mods:name id="A256EDE7C05D78F8F1DD8CEE0631E47D" type="personal">
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<mods:roleTerm id="7CA4CB147CB0A0F0DF9B887A8A27E811">Author</mods:roleTerm>
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<mods:namePart id="7CF4B1C2CF0D966FE8ECF1D40A769232">Oliver, P. Graham</mods:namePart>
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<mods:roleTerm id="4C4B75DCD2E8D7047BD55D45806E15A7">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="69829C58FA1A9DDB15B982F25AEB4475">Holmes, Anna</mods:namePart>
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<mods:typeOfResource id="53228630BFB0799C235735550E0283EF">text</mods:typeOfResource>
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<mods:titleInfo id="62363F300BBB5ED93DC4E84C70C7976E">
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<mods:title id="F28398BDCEDA6B5ADE370FACCE7CFC06">Journal of Natural History</mods:title>
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</mods:titleInfo>
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<mods:part id="3BAF7A53F0B08B91AF2D8743F137FDB8">
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<mods:date id="CE189406703BCAA049730A241D96B6EB">2004</mods:date>
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<mods:detail id="C791D44900C8C47B9E5BCEFC1076586A" type="pubDate">
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<mods:number id="E327DBF442ED28B6A8F74026033BBE13">2004-12-01</mods:number>
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</mods:detail>
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<mods:detail id="B117BD4173DAFF594E1943C4D53493B3" type="volume">
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<mods:number id="34B09D387B9BE1D683044B26F9CCF4D7">38</mods:number>
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</mods:detail>
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<mods:detail id="5C3A68850322B5982CEC4DEB4F8B41A0" type="issue">
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<mods:number id="850B4DBBC315F8D08DA62AA0CFF859E1">23</mods:number>
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<mods:location id="A4B33FE12087AF84DFAEE67374B2755E">
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<mods:url id="0DE8506A14AE95A1E5CBD60B88D59BD2">http://dx.doi.org/10.1080/00222930410001695123</mods:url>
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<mods:classification id="3E223C4C078134282C1549B2E86007FD">journal article</mods:classification>
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<mods:identifier id="82F0E45868C282231C5161EE3C422393" type="DOI">10.1080/00222930410001695123</mods:identifier>
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<mods:identifier id="FF12DA9F8F3FC698B1DA2407EC0CA6A3" type="ISSN">1464-5262</mods:identifier>
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<mods:identifier id="096E02AD3086E7A8FD84DBDD8479C992" type="Zenodo-Dep">10097787</mods:identifier>
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</mods:mods>
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<treatment id="03B33A71563EFF8B3515DA2117DCFD44" LSID="urn:lsid:plazi:treatment:03B33A71563EFF8B3515DA2117DCFD44" httpUri="http://treatment.plazi.org/id/03B33A71563EFF8B3515DA2117DCFD44" lastPageId="12" lastPageNumber="3186" pageId="10" pageNumber="3184">
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<subSubSection id="C300D8EC563EFF8D3515DA211761F9F7" box="[532,772,1578,1602]" pageId="10" pageNumber="3184" type="nomenclature">
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<paragraph id="8BA58B67563EFF8D3515DA211761F9F7" blockId="10.[532,772,1578,1602]" box="[532,772,1578,1602]" pageId="10" pageNumber="3184">
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<heading id="D0ED3C0B563EFF8D3515DA211761F9F7" box="[532,772,1578,1602]" centered="true" fontSize="10" level="2" pageId="10" pageNumber="3184" reason="5">
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<taxonomicName id="4C1AF0E4563EFF8D3515DA2116DCF9F7" ID-CoL="Z9J5" authorityName="P. G. Oliver & Holmes" authorityYear="2004" box="[532,697,1578,1602]" class="Bivalvia" family="Philobryidae" genus="Cratis" kingdom="Animalia" order="Arcida" pageId="10" pageNumber="3184" phylum="Mollusca" rank="species" species="thylicus" status="sp. nov.">
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<emphasis id="B96E5775563EFF8D3515DA2116DCF9F7" bold="true" box="[532,697,1578,1602]" italics="true" pageId="10" pageNumber="3184">Cratis thylicus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A25DEA0E563EFF8D35C5DA211761F9F7" box="[708,772,1578,1602]" pageId="10" pageNumber="3184" rank="species">n. sp.</taxonomicNameLabel>
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</heading>
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||
</paragraph>
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||
</subSubSection>
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<subSubSection id="C300D8EC563EFF8D353BDA4116B8F9D7" box="[570,733,1610,1634]" pageId="10" pageNumber="3184" type="description">
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<paragraph id="8BA58B67563EFF8D353BDA4116B8F9D7" blockId="10.[570,733,1610,1634]" box="[570,733,1610,1634]" pageId="10" pageNumber="3184">
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(
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<figureCitation id="132197E2563EFF8D3543DA4116B2F9D7" box="[578,727,1610,1634]" captionStart="FIGS" captionStartId="11.[159,175,1057,1079]" captionTargetBox="[162,1113,170,1014]" captionTargetId="figure-190@11.[159,1116,170,1019]" captionTargetPageId="11" captionText="FIGS. 37–43. Cratis thylicus n. sp. (37–39) Holotype, NMW.Z.2001.061.00014, left valve: (37) external (MontageTM); (38) external (SEM); (39) internal (MontageTM). (40–43) Paratype, NMW.Z.2001.061.00015, left valve, periostracum lacking: (40) hinge and prodissoconch (SEM); (41) internal (SEM); (42) external (MontageTM); (43) internal (MontageTM)." figureDoi="http://doi.org/10.5281/zenodo.10097799" httpUri="https://zenodo.org/record/10097799/files/figure.png" pageId="10" pageNumber="3184">figures 37–43</figureCitation>
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)
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</paragraph>
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||
</subSubSection>
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<subSubSection id="C300D8EC563EFF8B37C3DA8017DCFD44" lastPageId="12" lastPageNumber="3186" pageId="10" pageNumber="3184" type="materials_examined">
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<paragraph id="8BA58B67563EFF8D37C3DA801033F916" blockId="10.[154,1110,1675,1733]" box="[194,1110,1675,1699]" pageId="10" pageNumber="3184">
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<materialsCitation id="3B72813A563EFF8D37C3DA801033F916" box="[194,1110,1675,1699]" elevation="17" location="Grand Pate'" municipality="Port Mathurin" pageId="10" pageNumber="3184" specimenCount="1" specimenCount-larva="1" typeStatus="holotype">
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<typeStatus id="54A135C5563EFF8D37C3DA801553F914" box="[194,310,1675,1699]" pageId="10" pageNumber="3184" type="holotype">HOLOTYPE</typeStatus>
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:
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<specimenCount id="9D1C40EE563EFF8D364FDA8015E5F916" box="[334,384,1675,1699]" pageId="10" pageNumber="3184" type="larva">1 lv</specimenCount>
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from
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<location id="8EC5DDBC563EFF8D36DBDA80160FF916" LSID="urn:lsid:plazi:treatment:03B33A71563EFF8B3515DA2117DCFD44:8EC5DDBC563EFF8D36DBDA80160FF916" box="[474,618,1675,1699]" municipality="Port Mathurin" name="Grand Pate'" pageId="10" pageNumber="3184">Grand Pate´</location>
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, off
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<collectingMunicipality id="6BC1111D563EFF8D35B0DA801701F916" box="[689,868,1675,1699]" pageId="10" pageNumber="3184">Port Mathurin</collectingMunicipality>
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, shell gravel,
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<quantity id="4CE22682563EFF8D331BDA801037F916" box="[1050,1106,1675,1699]" metricMagnitude="1" metricUnit="m" metricValue="1.7" pageId="10" pageNumber="3184" unit="m" value="17.0">
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<elevation id="00376C54563EFF8D331BDA801037F916" box="[1050,1106,1675,1699]" metricMagnitude="1" metricUnit="m" metricValue="1.7" pageId="10" pageNumber="3184" unit="m" value="17.0">17 m</elevation>
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</quantity>
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,
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</materialsCitation>
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</paragraph>
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<paragraph id="8BA58B67563EFF8D379BDAA7168DF971" blockId="10.[154,1110,1675,1733]" box="[154,744,1708,1733]" pageId="10" pageNumber="3184">
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19
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<emphasis id="B96E5775563EFF8D37B4DAA714DAF971" bold="true" box="[181,191,1708,1732]" pageId="10" pageNumber="3184">‡</emphasis>
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||
39.307
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<emphasis id="B96E5775563EFF8D3608DAA7156AF970" bold="true" box="[265,271,1708,1733]" pageId="10" pageNumber="3184">’</emphasis>
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S, 63
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<emphasis id="B96E5775563EFF8D364BDAA71531F971" bold="true" box="[330,340,1708,1732]" pageId="10" pageNumber="3184">‡</emphasis>
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24.950
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<emphasis id="B96E5775563EFF8D369FDAA715C1F970" bold="true" box="[414,420,1708,1733]" pageId="10" pageNumber="3184">’</emphasis>
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E.
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<collectionCode id="ED0B13A2563EFF8D36C9DAA71677F971" box="[456,530,1708,1732]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="10" pageNumber="3184">NMW</collectionCode>
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.Z.2001.061.00014.
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</paragraph>
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<caption id="DF65DBEF563FFF8C379ED82A1510FB17" ID-DOI="http://doi.org/10.5281/zenodo.10097799" ID-Zenodo-Dep="10097799" httpUri="https://zenodo.org/record/10097799/files/figure.png" pageId="11" pageNumber="3185" startId="11.[159,175,1057,1079]" targetBox="[162,1113,170,1014]" targetPageId="11">
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<paragraph id="8BA58B67563FFF8C379ED82A1510FB17" blockId="11.[159,1117,1057,1186]" pageId="11" pageNumber="3185">
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FIGS. 37–43.
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||
<taxonomicName id="4C1AF0E4563FFF8C3633D82915ADFB82" authorityName="P. G. Oliver & Holmes" authorityYear="2004" box="[306,456,1058,1079]" class="Bivalvia" family="Philobryidae" genus="Cratis" kingdom="Animalia" order="Arcida" pageId="11" pageNumber="3185" phylum="Mollusca" rank="species" species="thylicus" status="sp. nov.">
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||
<emphasis id="B96E5775563FFF8C3633D82915ADFB82" box="[306,456,1058,1079]" italics="true" pageId="11" pageNumber="3185">Cratis thylicus</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A25DEA0E563FFF8C36D5D82A1674FB82" box="[468,529,1057,1079]" pageId="11" pageNumber="3185" rank="species">n. sp.</taxonomicNameLabel>
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(37–39) Holotype, NMW.Z.2001.061.00014, left valve: (37) external (Montage
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<superScript id="7C6F262F563FFF8C36D4D83C1596FBF0" attach="left" box="[469,499,1079,1093]" fontSize="6" pageId="11" pageNumber="3185">TM</superScript>
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); (38) external (SEM); (39) internal (Montage
|
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<superScript id="7C6F262F563FFF8C34DBD83C179DFBF0" attach="left" box="[986,1016,1079,1093]" fontSize="6" pageId="11" pageNumber="3185">TM</superScript>
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). (40–43) Paratype, NMW.Z.2001.061.00015, left valve, periostracum lacking: (40) hinge and prodissoconch (SEM); (41) internal (SEM); (42) external (Montage
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<superScript id="7C6F262F563FFF8C34A0D86617DAFBCE" attach="right" box="[929,959,1133,1147]" fontSize="6" pageId="11" pageNumber="3185">TM</superScript>
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); (43) internal (Montage
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<superScript id="7C6F262F563FFF8C3648D88D1502FB21" attach="right" box="[329,359,1158,1172]" fontSize="6" pageId="11" pageNumber="3185">TM</superScript>
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).
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</paragraph>
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</caption>
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<paragraph id="8BA58B67563FFF8C37C6D8C317D6FB55" blockId="11.[159,1116,1224,1732]" box="[199,947,1224,1248]" pageId="11" pageNumber="3185">
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<materialsCitation id="3B72813A563FFF8C37C6D8C316B9FB55" box="[199,732,1224,1248]" collectionCode="NMW" pageId="11" pageNumber="3185" specimenCount="5" specimenCount-larva="5" typeStatus="paratype">
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<typeStatus id="54A135C5563FFF8C37C6D8C31527FB6B" box="[199,322,1224,1248]" pageId="11" pageNumber="3185" type="paratype">PARATYPES</typeStatus>
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:
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<specimenCount id="9D1C40EE563FFF8C3655D8C315E5FB55" box="[340,384,1224,1248]" pageId="11" pageNumber="3185" type="larva">5 lv</specimenCount>
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and 2 rv as
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<typeStatus id="54A135C5563FFF8C351CD8C316E1FB55" box="[541,644,1224,1248]" pageId="11" pageNumber="3185" type="holotype">holotype</typeStatus>
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,
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<collectionCode id="ED0B13A2563FFF8C3593D8C316B9FB55" box="[658,732,1224,1248]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="11" pageNumber="3185">NMW</collectionCode>
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</materialsCitation>
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.Z.2001.061.00015.
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</paragraph>
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<paragraph id="8BA58B67563FFF8C37C6D8ED17B0FAA8" blockId="11.[159,1116,1224,1732]" pageId="11" pageNumber="3185">
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<emphasis id="B96E5775563FFF8C37C6D8ED150DFB4B" box="[199,360,1254,1278]" italics="true" pageId="11" pageNumber="3185">Measurements</emphasis>
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(mm, L
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<emphasis id="B96E5775563FFF8C36E3D8EE1598FB4B" bold="true" box="[482,509,1253,1278]" pageId="11" pageNumber="3185">6</emphasis>
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||
H).
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<typeStatus id="54A135C5563FFF8C3531D8ED16FAFB4B" box="[560,671,1254,1278]" pageId="11" pageNumber="3185" type="holotype">Holotype</typeStatus>
|
||
: 1.34
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||
<emphasis id="B96E5775563FFF8C35E9D8EE1766FB4B" bold="true" box="[744,771,1253,1278]" pageId="11" pageNumber="3185">6</emphasis>
|
||
1.40.
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||
<typeStatus id="54A135C5563FFF8C344ED8ED17A7FB4B" box="[847,962,1254,1278]" pageId="11" pageNumber="3185" type="paratype">Paratypes</typeStatus>
|
||
: 1.35
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||
<emphasis id="B96E5775563FFF8C330AD8EE1043FB4B" bold="true" box="[1035,1062,1253,1278]" pageId="11" pageNumber="3185">6</emphasis>
|
||
1.53, 1.37
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||
<emphasis id="B96E5775563FFF8C37CED90E148FFAAB" bold="true" box="[207,234,1285,1310]" pageId="11" pageNumber="3185">6</emphasis>
|
||
1.61, 1.07
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||
<emphasis id="B96E5775563FFF8C3658D90E1511FAAB" bold="true" box="[345,372,1285,1310]" pageId="11" pageNumber="3185">6</emphasis>
|
||
1.23, 1.28
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||
<emphasis id="B96E5775563FFF8C36E5D90E159AFAAB" bold="true" box="[484,511,1285,1310]" pageId="11" pageNumber="3185">6</emphasis>
|
||
1.53, 0.97
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||
<emphasis id="B96E5775563FFF8C356ED90E16EFFAAB" bold="true" box="[623,650,1285,1310]" pageId="11" pageNumber="3185">6</emphasis>
|
||
1.22, 1.32
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||
<emphasis id="B96E5775563FFF8C35F8D90E1771FAAB" bold="true" box="[761,788,1285,1310]" pageId="11" pageNumber="3185">6</emphasis>
|
||
1.52, 1.04
|
||
<emphasis id="B96E5775563FFF8C3485D90E17FAFAAB" bold="true" box="[900,927,1285,1310]" pageId="11" pageNumber="3185">6</emphasis>
|
||
1.34.
|
||
</paragraph>
|
||
<paragraph id="8BA58B67563FFF8C37C6D92D15D2F910" blockId="11.[159,1116,1224,1732]" pageId="11" pageNumber="3185">
|
||
<emphasis id="B96E5775563FFF8C37C6D92D152BFA8B" box="[199,334,1318,1342]" italics="true" pageId="11" pageNumber="3185">Description.</emphasis>
|
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Size
|
||
<quantity id="4CE22682563FFF8C3694D92E158FFA88" box="[405,490,1317,1341]" metricMagnitude="-3" metricUnit="m" metricValue="1.6" pageId="11" pageNumber="3185" unit="mm" value="1.6">1.6 mm</quantity>
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. Equivalve. Inequilateral; umbo situated on anterior margin. Outline obliquely oval trigonal; dorsal margin straight and short, sloping slightly to the anterior; anterior margin straight, sloping to the ventral margin; ventral margin rounded; posterior margin slightly concave with a very large cavity along most of posterior margin. The cavity (
|
||
<figureCitation id="132197E2563FFF8C340ED9AC17CEFA0A" box="[783,939,1447,1471]" captionStart="FIGS" captionStartId="11.[159,175,1057,1079]" captionTargetBox="[162,1113,170,1014]" captionTargetId="figure-190@11.[159,1116,170,1019]" captionTargetPageId="11" captionText="FIGS. 37–43. Cratis thylicus n. sp. (37–39) Holotype, NMW.Z.2001.061.00014, left valve: (37) external (MontageTM); (38) external (SEM); (39) internal (MontageTM). (40–43) Paratype, NMW.Z.2001.061.00015, left valve, periostracum lacking: (40) hinge and prodissoconch (SEM); (41) internal (SEM); (42) external (MontageTM); (43) internal (MontageTM)." figureDoi="http://doi.org/10.5281/zenodo.10097799" httpUri="https://zenodo.org/record/10097799/files/figure.png" pageId="11" pageNumber="3185">figures 41, 43</figureCitation>
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) is fairly deep and is 160
|
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<emphasis id="B96E5775563FFF8C3620D9C31555FA55" box="[289,304,1480,1504]" italics="true" pageId="11" pageNumber="3185">M</emphasis>
|
||
m wide without the periostracum. The periostracum extends further to the posterior to encase the cavity (
|
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<figureCitation id="132197E2563FFF8C355FD9E216A6F9B4" box="[606,707,1513,1537]" captionStart="FIGS" captionStartId="11.[159,175,1057,1079]" captionTargetBox="[162,1113,170,1014]" captionTargetId="figure-190@11.[159,1116,170,1019]" captionTargetPageId="11" captionText="FIGS. 37–43. Cratis thylicus n. sp. (37–39) Holotype, NMW.Z.2001.061.00014, left valve: (37) external (MontageTM); (38) external (SEM); (39) internal (MontageTM). (40–43) Paratype, NMW.Z.2001.061.00015, left valve, periostracum lacking: (40) hinge and prodissoconch (SEM); (41) internal (SEM); (42) external (MontageTM); (43) internal (MontageTM)." figureDoi="http://doi.org/10.5281/zenodo.10097799" httpUri="https://zenodo.org/record/10097799/files/figure.png" pageId="11" pageNumber="3185">figure 39</figureCitation>
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). Hinge bears a set of provincular denticles to the posterior of the ligament (
|
||
<figureCitation id="132197E2563FFF8C35B8DA011779F997" box="[697,796,1546,1570]" captionStart="FIGS" captionStartId="11.[159,175,1057,1079]" captionTargetBox="[162,1113,170,1014]" captionTargetId="figure-190@11.[159,1116,170,1019]" captionTargetPageId="11" captionText="FIGS. 37–43. Cratis thylicus n. sp. (37–39) Holotype, NMW.Z.2001.061.00014, left valve: (37) external (MontageTM); (38) external (SEM); (39) internal (MontageTM). (40–43) Paratype, NMW.Z.2001.061.00015, left valve, periostracum lacking: (40) hinge and prodissoconch (SEM); (41) internal (SEM); (42) external (MontageTM); (43) internal (MontageTM)." figureDoi="http://doi.org/10.5281/zenodo.10097799" httpUri="https://zenodo.org/record/10097799/files/figure.png" pageId="11" pageNumber="3185">figure 40</figureCitation>
|
||
) and both valves have a single, large prionodont tooth (
|
||
<figureCitation id="132197E2563FFF8C352BDA2116E8F9F7" box="[554,653,1578,1602]" captionStart="FIGS" captionStartId="11.[159,175,1057,1079]" captionTargetBox="[162,1113,170,1014]" captionTargetId="figure-190@11.[159,1116,170,1019]" captionTargetPageId="11" captionText="FIGS. 37–43. Cratis thylicus n. sp. (37–39) Holotype, NMW.Z.2001.061.00014, left valve: (37) external (MontageTM); (38) external (SEM); (39) internal (MontageTM). (40–43) Paratype, NMW.Z.2001.061.00015, left valve, periostracum lacking: (40) hinge and prodissoconch (SEM); (41) internal (SEM); (42) external (MontageTM); (43) internal (MontageTM)." figureDoi="http://doi.org/10.5281/zenodo.10097799" httpUri="https://zenodo.org/record/10097799/files/figure.png" pageId="11" pageNumber="3185">figure 40</figureCitation>
|
||
) and associated socket. At and just below the posterior end of the provincular denticles is a small tubercle probably representing a posterior prionodont tooth. Ligament pit small, shallow, trigonal and slightly prosoclinal.
|
||
</paragraph>
|
||
<paragraph id="8BA58B67563FFF8B37C6DAA71740FEDE" blockId="11.[159,1116,1224,1732]" lastBlockId="12.[154,1111,173,753]" lastPageId="12" lastPageNumber="3186" pageId="11" pageNumber="3185">
|
||
Sculpture consists of equally spaced, fine, concentric ridges. Periostracum lamellar, arising from the concentric ridges except for about six radial rows of adpressed spines which project beyond the ventral margin. Prodissoconch (PdI) a simple, shallow cap, about 230
|
||
<emphasis id="B96E57755638FF8B3508DCFB167DFEBD" box="[521,536,240,264]" italics="true" pageId="12" pageNumber="3186">M</emphasis>
|
||
m width, with faint concentric lines on the outer edges (
|
||
<figureCitation id="132197E25638FF8B37ECDD1A1536FE9C" box="[237,339,273,297]" captionStart="FIGS" captionStartId="11.[159,175,1057,1079]" captionTargetBox="[162,1113,170,1014]" captionTargetId="figure-190@11.[159,1116,170,1019]" captionTargetPageId="11" captionText="FIGS. 37–43. Cratis thylicus n. sp. (37–39) Holotype, NMW.Z.2001.061.00014, left valve: (37) external (MontageTM); (38) external (SEM); (39) internal (MontageTM). (40–43) Paratype, NMW.Z.2001.061.00015, left valve, periostracum lacking: (40) hinge and prodissoconch (SEM); (41) internal (SEM); (42) external (MontageTM); (43) internal (MontageTM)." figureDoi="http://doi.org/10.5281/zenodo.10097799" httpUri="https://zenodo.org/record/10097799/files/figure.png" pageId="12" pageNumber="3186">figure 40</figureCitation>
|
||
). Inner margin with two or three crenulations at the posterior ventral junction. The shell is translucent although the concentric lines, myostracum, edge of posterior margin and periostracum are opaque.
|
||
</paragraph>
|
||
<paragraph id="8BA58B675638FF8B37C3DD781480FE1E" blockId="12.[154,1111,173,753]" pageId="12" pageNumber="3186">
|
||
<emphasis id="B96E57755638FF8B37C3DD7815D0FE3E" box="[194,437,371,395]" italics="true" pageId="12" pageNumber="3186">Derivation of name.</emphasis>
|
||
Greek
|
||
<emphasis id="B96E57755638FF8B351ADD78161CFE3E" box="[539,633,371,395]" italics="true" pageId="12" pageNumber="3186">thylakos</emphasis>
|
||
‘a pouch’, referring to the posterior cavity.
|
||
</paragraph>
|
||
<paragraph id="8BA58B675638FF8B37C3DDB8175AFDFB" blockId="12.[154,1111,173,753]" pageId="12" pageNumber="3186">
|
||
<emphasis id="B96E57755638FF8B37C3DDB8153FFE7E" box="[194,346,435,459]" italics="true" pageId="12" pageNumber="3186">Comparisons.</emphasis>
|
||
We have reviewed all of those species attributed to
|
||
<taxonomicName id="4C1AF0E45638FF8B34DBDDB8107AFE7E" authorityName="Hedley" authorityYear="1915" box="[986,1055,435,459]" class="Bivalvia" family="Philobryidae" genus="Cratis" kingdom="Animalia" order="Arcida" pageId="12" pageNumber="3186" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B96E57755638FF8B34DBDDB8107AFE7E" box="[986,1055,435,459]" italics="true" pageId="12" pageNumber="3186">Cratis</emphasis>
|
||
</taxonomicName>
|
||
and those that resemble the genus including
|
||
<taxonomicName id="4C1AF0E45638FF8B3592DDD816AEFE5E" authorityName="Finlay" authorityYear="1927" box="[659,715,467,491]" class="Bivalvia" family="Philobryidae" genus="Cosa" kingdom="Animalia" order="Arcida" pageId="12" pageNumber="3186" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B96E57755638FF8B3592DDD816AEFE5E" box="[659,715,467,491]" italics="true" pageId="12" pageNumber="3186">Cosa</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C1AF0E45638FF8B3417DDD817A8FE5E" authorityName="Habe" authorityYear="1951" box="[790,973,467,491]" class="Bivalvia" family="Limopsidae" genus="Nipponolimopsis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Arcida" pageId="12" pageNumber="3186" phylum="Mollusca" rank="genus">
|
||
<emphasis id="B96E57755638FF8B3417DDD817A8FE5E" box="[790,973,467,491]" italics="true" pageId="12" pageNumber="3186">Nipponolimopsis</emphasis>
|
||
</taxonomicName>
|
||
and could find none with a posterior cavity. All of those taxa from
|
||
<collectingCountry id="F30DCBF75638FF8B347ADDF8107EFDBE" box="[891,1051,499,523]" name="New Zealand" pageId="12" pageNumber="3186">New Zealand</collectingCountry>
|
||
and
|
||
<collectingCountry id="F30DCBF75638FF8B379BDE1E1561FD98" box="[154,260,533,557]" name="Australia" pageId="12" pageNumber="3186">Australia</collectingCountry>
|
||
have capped prodissoconchs with a median boss quite unlike the low, rather featureless prodissoconch of the Rodrigues species.
|
||
</paragraph>
|
||
<paragraph id="8BA58B675638FF8B37C3DE5D17DCFD44" blockId="12.[154,1111,173,753]" pageId="12" pageNumber="3186">
|
||
<emphasis id="B96E57755638FF8B37C3DE5D1548FDDB" box="[194,301,598,622]" italics="true" pageId="12" pageNumber="3186">Remarks.</emphasis>
|
||
The function of the posterior cavity is not readily apparent as no living animals were collected. From observations on other philobryids many brood their young (
|
||
<bibRefCitation id="EF8BF6965638FF8B368EDE9C164EFD1A" author="Tevesz" box="[399,555,663,687]" firstAuthor="Tevesz" pageId="12" pageNumber="3186" pagination="1 - 64" refId="ref20801" refString="TEVESZ, M. J. S., 1977, Taxonomy and ecology of the Philobryidae and Limopsidae (Mollusca: Pelecypoda), Postilla, Peabody Museum Yale University, 171, 1 - 64." type="journal article" year="1977">Tevesz, 1977</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EF8BF6965638FF8B353FDE9C1709FD1A" author="Hayami and Kase" box="[574,876,663,687]" firstAuthor="Hayami" pageId="12" pageNumber="3186" refId="ref19816" refString="HAYAMI, I. and KASE, T., 1993, Submarine Cave Bivalvia from the Ryukyu Islands (Tokyo: University of Tokyo Press), 133 pp." type="book" year="1993">Hayami and Kase, 1993</bibRefCitation>
|
||
).
|
||
<taxonomicName id="4C1AF0E45638FF8B3487DE9C1060FD1A" authorityName="P. G. Oliver & Holmes" authorityYear="2004" box="[902,1029,663,687]" class="Bivalvia" family="Philobryidae" genus="Cratis" kingdom="Animalia" order="Arcida" pageId="12" pageNumber="3186" phylum="Mollusca" rank="species" species="thylicus">
|
||
<emphasis id="B96E57755638FF8B3487DE9C1060FD1A" box="[902,1029,663,687]" italics="true" pageId="12" pageNumber="3186">C. thylicus</emphasis>
|
||
</taxonomicName>
|
||
has a large but simple prodissoconch and is also likely to brood its young and we suggest that the cavity acts as an external marsupium for this purpose.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |