215 lines
29 KiB
XML
215 lines
29 KiB
XML
<document id="2F7D7986F70F91A9805AB955CCC32C97" ID-DOI="10.5281/zenodo.209419" ID-GBIF-Dataset="d425df20-b024-4ae2-bfd6-3b233f94d15e" ID-ISSN="1175-5326" ID-Zenodo-Dep="209419" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460508995608" checkinUser="plazi" docAuthor="Eléaume, Marc, Bohn, Jens-Michael, Roux, Michel & Améziane, Nadia" docDate="2012" docId="D558AA75E00A4C716F85FB655E31FDC1" docLanguage="en" docName="zt03425p022.pdf" docOrigin="Zootaxa 3425" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Porphyrocrinus incrassatus Gislen 1933" docType="treatment" docVersion="9" lastPageNumber="18" masterDocId="2961D20DE01A4C606F12FFE35C3CFF9E" masterDocTitle="Stalked crinoids (Echinodermata) collected by the R / V Polarstern and Meteor in the south Atlantic and in Antarctica" masterLastPageNumber="22" masterPageNumber="1" pageNumber="17" updateTime="1698313077547" updateUser="plazi">
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<mods:title id="9BA6D7DFFF37FE388B0016A5EE20C015">Stalked crinoids (Echinodermata) collected by the R / V Polarstern and Meteor in the south Atlantic and in Antarctica</mods:title>
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<mods:name id="87DE8F3882306B518320583BA80EB061" type="personal">
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<mods:namePart id="C1D093F34D0EC30A1BD27FA0C0558759">Eléaume, Marc</mods:namePart>
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<mods:namePart id="C7FB5B542030084650156BE927AB88FE">Bohn, Jens-Michael</mods:namePart>
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<mods:name id="9F2B1F2997661BC80999445A2654B1A4" type="personal">
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<mods:namePart id="569216B64A9708A8D0DC75E7182384A5">Roux, Michel</mods:namePart>
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<mods:namePart id="07B3DF1E109E50AD8CBDB19CAF1A9673">Améziane, Nadia</mods:namePart>
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<mods:typeOfResource id="8BB1511A849EA72B0254BB383556AD02">text</mods:typeOfResource>
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<mods:title id="E602DCACB46F56AF0A4A6694CB51EF55">Zootaxa</mods:title>
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<mods:date id="B1FF49BAB067B37C67BDD132323BC5E6">2012</mods:date>
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<mods:detail id="B9B6A2A5B5285DB07689E9ABC48A3753" type="volume">
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<mods:number id="6085F675FE67CC0E7F91AADA71F6D640">3425</mods:number>
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<mods:classification id="3382D34D4287274D2E8D5EE580AE7274">journal article</mods:classification>
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<mods:identifier id="88703D7B5D9C08FAADC7B6283243E2AE" type="DOI">10.5281/zenodo.209419</mods:identifier>
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<treatment id="D558AA75E00A4C716F85FB655E31FDC1" ID-DOI="http://doi.org/10.5281/zenodo.6180843" ID-GBIF-Taxon="119522936" ID-Zenodo-Dep="6180843" LSID="urn:lsid:plazi:treatment:D558AA75E00A4C716F85FB655E31FDC1" httpUri="http://treatment.plazi.org/id/D558AA75E00A4C716F85FB655E31FDC1" lastPageId="17" lastPageNumber="18" pageId="16" pageNumber="17">
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<subSubSection id="15EB48E8E00A4C706F85FB655F33FA99" pageId="16" pageNumber="17" type="nomenclature">
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<paragraph id="5D4E1B63E00A4C706F85FB655E83FB3E" blockId="16.[151,703,1158,1217]" box="[151,703,1158,1184]" pageId="16" pageNumber="17">
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<heading id="0606AC0FE00A4C706F85FB655E83FB3E" bold="true" box="[151,703,1158,1184]" fontSize="11" level="1" pageId="16" pageNumber="17" reason="1">
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<taxonomicName id="9AF160E0E00A4C706F85FB655E83FB3E" authority="Gislen, 1933" authorityName="Gislen" authorityYear="1933" box="[151,703,1158,1184]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="16" pageNumber="17" phylum="Echinodermata" rank="species" species="incrassatus">
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<emphasis id="6F85C771E00A4C706F85FB655E83FB3E" bold="true" box="[151,703,1158,1184]" pageId="16" pageNumber="17">
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<emphasis id="6F85C771E00A4C706F85FB655D69FB3E" bold="true" box="[151,341,1158,1184]" italics="true" pageId="16" pageNumber="17">Porphyrocrinus</emphasis>
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cf.
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<emphasis id="6F85C771E00A4C706E90FB655E37FB3E" bold="true" box="[386,523,1158,1184]" italics="true" pageId="16" pageNumber="17">incrassatus</emphasis>
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(
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<bibRefCitation id="39606692E00A4C706D08FB655E8AFB3E" author="Gislen" box="[538,694,1158,1184]" pageId="16" pageNumber="17" refString="Gislen, T. (1933) A small collection of crinoids from St. Helena. Videnskabelige Meddelelser fra Dansk Naturhistorish Forening, 93, 475 - 483." type="journal article" year="1933">Gislén, 1933</bibRefCitation>
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)
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="5D4E1B63E00A4C706F85FB4A5D50FB5F" blockId="16.[151,703,1158,1217]" box="[151,364,1193,1217]" pageId="16" pageNumber="17">
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<figureCitation id="C5CA07E6E00A4C706F85FB4A5D3AFB5F" box="[151,262,1193,1217]" captionStart="FIGURE 10" captionStartId="17.[151,250,1517,1540]" captionTargetBox="[151,1431,670,1489]" captionTargetId="figure@17.[151,1436,663,1495]" captionTargetPageId="17" captionText="FIGURE 10. Porphyrocrinus cf. incrassatus. A – E: Walvis specimen (MNHN IE- 2012 - 760); A: general view; B: aboral cup (B: basal ring, C 1: proximalmost columnal, R: radial ring); C: detail of arm with muscular synarthry (m) and synostosis (s) Between brachial (Br) pairs; D – E: distal mesistele columnal of preserved stalk; F – G: Cape Basin stalk fragment (ZSM 20070046); F: proximal columnal (more distal position than D – E); G: distal columnal." httpUri="https://zenodo.org/record/209428/files/figure.png" pageId="16" pageNumber="17">Figure 10</figureCitation>
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;
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<tableCitation id="10732ED8E00A4C706E00FB4A5D5BFB5F" box="[274,359,1193,1217]" captionStart="TABLE 5" captionStartId="16.[151,235,586,607]" captionTargetBox="[151,1435,666,987]" captionTargetPageId="16" captionText="TABLE 5. Sampling stations of the eleven specimens attributed to Porphyrocrinus incrassatus (Gislén, 1933) or with currently" httpUri="http://table.plazi.org/id/098E4BEBE00A4C706F85FDA959A7FDC1" pageId="16" pageNumber="17" tableUuid="098E4BEBE00A4C706F85FDA959A7FDC1">Table 5</tableCitation>
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.
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</paragraph>
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<paragraph id="5D4E1B63E00A4C706F85FB115F33FA99" blockId="16.[151,783,1265,1287]" box="[151,783,1265,1287]" pageId="16" pageNumber="17">
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Synonymy:
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<taxonomicName id="9AF160E0E00A4C706E00FB125F37FA99" authority="Roux, 1980b: 904" authorityName="Roux" authorityPageNumber="904" authorityYear="1980" box="[274,779,1265,1287]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="16" pageNumber="17" phylum="Echinodermata" rank="species" species="incrassatus">
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<emphasis id="6F85C771E00A4C706E00FB125D8DFA99" box="[274,433,1265,1287]" italics="true" pageId="16" pageNumber="17">Porphyrocrinus</emphasis>
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cf.
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<emphasis id="6F85C771E00A4C706ECAFB115E77FA99" box="[472,587,1266,1287]" italics="true" pageId="16" pageNumber="17">incrassatus</emphasis>
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<bibRefCitation id="39606692E00A4C706D40FB115EE4FA99" author="Roux" box="[594,728,1265,1287]" pageId="16" pageNumber="17" refString="Roux, M. (1980 b) Les articulations du pedoncule des Hyocrinidae. Interet systematique et consequences. Bulletin du Museum national d'Histoire naturelle, Paris, serie 4, 2, sect. A (1), 31 - 57." type="journal article" year="1980" yearSuffix="b">Roux, 1980b</bibRefCitation>
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: 904
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</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="15EB48E8E00A4C706F85FAD058F5FA42" pageId="16" pageNumber="17" type="materials_examined">
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<paragraph id="5D4E1B63E00A4C706F85FAD058F5FA42" blockId="16.[151,1436,1331,2004]" pageId="16" pageNumber="17">
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<emphasis id="6F85C771E00A4C706F85FAD05D43FAD2" bold="true" box="[151,383,1331,1356]" pageId="16" pageNumber="17">Material examined</emphasis>
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(
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<tableCitation id="10732ED8E00A4C706E86FAD75DCCFAD2" box="[404,496,1332,1356]" captionStart="TABLE 5" captionStartId="16.[151,235,586,607]" captionTargetBox="[151,1435,666,987]" captionTargetPageId="16" captionText="TABLE 5. Sampling stations of the eleven specimens attributed to Porphyrocrinus incrassatus (Gislén, 1933) or with currently" httpUri="http://table.plazi.org/id/098E4BEBE00A4C706F85FDA959A7FDC1" pageId="16" pageNumber="17" tableUuid="098E4BEBE00A4C706F85FDA959A7FDC1">Table 5</tableCitation>
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). One distal stalk fragment (Bavarian State Museum Collection of Zoology in Munich, catalogue number
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<collectionCode id="3BE083A6E00A4C706EC0FAB45E30FAF1" box="[466,524,1367,1391]" httpUri="http://grbio.org/cool/4b7r-7sec" name="Bavarian State Collection of Zoology" pageId="16" pageNumber="17">ZSM</collectionCode>
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20070046) was dredged in the Cape Basin during R/V Meteor cruise
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<collectionCode id="3BE083A6E00A4C706A25FABB5945FAEE" box="[1335,1401,1368,1392]" pageId="16" pageNumber="17">DIVA</collectionCode>
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II. One specimen which had been cited (
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<bibRefCitation id="39606692E00A4C706D56FA9F5EEEFA0A" author="Roux" box="[580,722,1404,1428]" pageId="16" pageNumber="17" refString="Roux, M. (1980 b) Les articulations du pedoncule des Hyocrinidae. Interet systematique et consequences. Bulletin du Museum national d'Histoire naturelle, Paris, serie 4, 2, sect. A (1), 31 - 57." type="journal article" year="1980" yearSuffix="b">Roux 1980b</bibRefCitation>
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) but not described is housed in the collections of the Muséum national d’Histoire naturelle, Paris (catalogue number
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<collectionCode id="3BE083A6E00A4C706DEEFA425F6DFA26" LSID="urn:lsid:biocol.org:col:34988" box="[764,849,1441,1464]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34988" name="Museum National d'Histoire Naturelle" pageId="16" pageNumber="17">MNHN</collectionCode>
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<collectionCode id="3BE083A6E00A4C706C4BFA7C5F42FA29" box="[857,894,1439,1463]" pageId="16" pageNumber="17">IE-</collectionCode>
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2012-760). It was dredged by N/O Jean Charcot during the French cruise “Walvis I” (station DS01) at the south-eastern foot of the Walvis ridge.
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</paragraph>
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</subSubSection>
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<subSubSection id="15EB48E8E00A4C716FD5FA045E30FF4A" lastPageId="17" lastPageNumber="18" pageId="16" pageNumber="17" type="description">
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<paragraph id="5D4E1B63E00A4C706FD5FA045E53F8F6" blockId="16.[151,1436,1331,2004]" pageId="16" pageNumber="17">
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<emphasis id="6F85C771E00A4C706FD5FA045D65F99E" bold="true" box="[199,345,1511,1536]" pageId="16" pageNumber="17">Description.</emphasis>
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Walvis specimen: proximal stalk, aboral cup and proximal crown (
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<figureCitation id="C5CA07E6E00A4C706B57FA0458AAFA61" box="[1093,1174,1511,1535]" captionStart="FIGURE 10" captionStartId="17.[151,250,1517,1540]" captionTargetBox="[151,1431,670,1489]" captionTargetId="figure@17.[151,1436,663,1495]" captionTargetPageId="17" captionText="FIGURE 10. Porphyrocrinus cf. incrassatus. A – E: Walvis specimen (MNHN IE- 2012 - 760); A: general view; B: aboral cup (B: basal ring, C 1: proximalmost columnal, R: radial ring); C: detail of arm with muscular synarthry (m) and synostosis (s) Between brachial (Br) pairs; D – E: distal mesistele columnal of preserved stalk; F – G: Cape Basin stalk fragment (ZSM 20070046); F: proximal columnal (more distal position than D – E); G: distal columnal." httpUri="https://zenodo.org/record/209428/files/figure.png" pageId="16" pageNumber="17">Fig. 10</figureCitation>
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A). Aboral cup of maximum height
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<quantity id="9A09B686E00A4C706E3DF9EF5DBBF9BA" box="[303,391,1548,1572]" metricMagnitude="-3" metricUnit="m" metricValue="1.9" pageId="16" pageNumber="17" unit="mm" value="1.9">1.9 mm</quantity>
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with radial ring more flared than basal ring (
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<figureCitation id="C5CA07E6E00A4C706C9DF9EF5FDFF9BA" box="[911,995,1548,1572]" captionStart="FIGURE 10" captionStartId="17.[151,250,1517,1540]" captionTargetBox="[151,1431,670,1489]" captionTargetId="figure@17.[151,1436,663,1495]" captionTargetPageId="17" captionText="FIGURE 10. Porphyrocrinus cf. incrassatus. A – E: Walvis specimen (MNHN IE- 2012 - 760); A: general view; B: aboral cup (B: basal ring, C 1: proximalmost columnal, R: radial ring); C: detail of arm with muscular synarthry (m) and synostosis (s) Between brachial (Br) pairs; D – E: distal mesistele columnal of preserved stalk; F – G: Cape Basin stalk fragment (ZSM 20070046); F: proximal columnal (more distal position than D – E); G: distal columnal." httpUri="https://zenodo.org/record/209428/files/figure.png" pageId="16" pageNumber="17">Fig. 10</figureCitation>
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B); diameter at basal/stalk junction
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<quantity id="9A09B686E00A4C706A6BF9EF5CF9F9D6" metricMagnitude="-3" metricUnit="m" metricValue="1.4" pageId="16" pageNumber="17" unit="mm" value="1.4">1.4 mm</quantity>
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, at radial/basal sutures
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<quantity id="9A09B686E00A4C706EC5F9CC5E0EF9D6" box="[471,562,1583,1608]" metricMagnitude="-3" metricUnit="m" metricValue="1.6" pageId="16" pageNumber="17" unit="mm" value="1.6">1.6 mm</quantity>
|
||
, at upper radial border
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||
<quantity id="9A09B686E00A4C706C54F9CC5F9EF9D6" box="[838,930,1583,1608]" metricMagnitude="-3" metricUnit="m" metricValue="2.3" pageId="16" pageNumber="17" unit="mm" value="2.3">2.3 mm</quantity>
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||
, maximum basal height
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<quantity id="9A09B686E00A4C706BD2F9CC5927F9D6" box="[1216,1307,1583,1608]" metricMagnitude="-4" metricUnit="m" metricValue="9.0" pageId="16" pageNumber="17" unit="mm" value="0.9">0.9 mm</quantity>
|
||
, maximum radial height
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||
<quantity id="9A09B686E00A4C706E38F9B75DBFF9F2" box="[298,387,1620,1644]" metricMagnitude="-3" metricUnit="m" metricValue="1.1" pageId="16" pageNumber="17" unit="mm" value="1.1">1.1 mm</quantity>
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||
; ratio of radial to basal height 1.2; five basals with conspicuous sutures. One arm preserved to Br9 (length
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<quantity id="9A09B686E00A4C706E0FF9945DBEF911" box="[285,386,1655,1679]" metricMagnitude="-4" metricUnit="m" metricValue="9.6" pageId="16" pageNumber="17" unit="mm" value="0.96">0.96 mm</quantity>
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) with first pinnule on Br8, two arms to Br4, one to Br5, and fifth restricted to Br1+2; arm pattern with successive brachial pairs; all brachials constricted at mid height; muscular articulations larger than synostoses (
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<figureCitation id="C5CA07E6E00A4C706FCCF95C5D13F949" box="[222,303,1727,1751]" captionStart="FIGURE 10" captionStartId="17.[151,250,1517,1540]" captionTargetBox="[151,1431,670,1489]" captionTargetId="figure@17.[151,1436,663,1495]" captionTargetPageId="17" captionText="FIGURE 10. Porphyrocrinus cf. incrassatus. A – E: Walvis specimen (MNHN IE- 2012 - 760); A: general view; B: aboral cup (B: basal ring, C 1: proximalmost columnal, R: radial ring); C: detail of arm with muscular synarthry (m) and synostosis (s) Between brachial (Br) pairs; D – E: distal mesistele columnal of preserved stalk; F – G: Cape Basin stalk fragment (ZSM 20070046); F: proximal columnal (more distal position than D – E); G: distal columnal." httpUri="https://zenodo.org/record/209428/files/figure.png" pageId="16" pageNumber="17">Fig. 10</figureCitation>
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C). Preserved stalk length
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<quantity id="9A09B686E00A4C706D41F95C5E8BF946" box="[595,695,1727,1752]" metricMagnitude="-2" metricUnit="m" metricValue="1.41" pageId="16" pageNumber="17" unit="mm" value="14.1">14.1 mm</quantity>
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with 15 subcylindrical columnals and diameter at broken end
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<quantity id="9A09B686E00A4C706A79F95C5CFAF962" metricMagnitude="-4" metricUnit="m" metricValue="9.8" pageId="16" pageNumber="17" unit="mm" value="0.98">0.98 mm</quantity>
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||
; proxistele of five columnals united by non-functional articulations; height of proximalmost columnal
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<quantity id="9A09B686E00A4C706A52F90759A4F962" box="[1344,1432,1764,1788]" metricMagnitude="-4" metricUnit="m" metricValue="4.0" pageId="16" pageNumber="17" unit="mm" value="0.4">0.4 mm</quantity>
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, height of distalmost preserved columnal
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<quantity id="9A09B686E00A4C706D7AF8EB5EF1F8BE" box="[616,717,1800,1824]" metricMagnitude="-3" metricUnit="m" metricValue="1.16" pageId="16" pageNumber="17" unit="mm" value="1.16">1.16 mm</quantity>
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(ratio of height to diameter 1.2); beyond proxistele, columnals articulated by synarthries with circular facet with 8-shaped deep ligamentary pit and short fulcral ridges of 6–7 small crenulae on each side (
|
||
<figureCitation id="C5CA07E6E00A4C706EC8F8B35E16F8F6" box="[474,554,1872,1896]" captionStart="FIGURE 10" captionStartId="17.[151,250,1517,1540]" captionTargetBox="[151,1431,670,1489]" captionTargetId="figure@17.[151,1436,663,1495]" captionTargetPageId="17" captionText="FIGURE 10. Porphyrocrinus cf. incrassatus. A – E: Walvis specimen (MNHN IE- 2012 - 760); A: general view; B: aboral cup (B: basal ring, C 1: proximalmost columnal, R: radial ring); C: detail of arm with muscular synarthry (m) and synostosis (s) Between brachial (Br) pairs; D – E: distal mesistele columnal of preserved stalk; F – G: Cape Basin stalk fragment (ZSM 20070046); F: proximal columnal (more distal position than D – E); G: distal columnal." httpUri="https://zenodo.org/record/209428/files/figure.png" pageId="16" pageNumber="17">Fig. 10</figureCitation>
|
||
D–E).
|
||
</paragraph>
|
||
<paragraph id="5D4E1B63E00A4C716FD5F8975E30FF4A" blockId="16.[151,1436,1331,2004]" lastBlockId="17.[151,1436,151,607]" lastPageId="17" lastPageNumber="18" pageId="16" pageNumber="17">
|
||
Incomplete stalk from Cape Basin: length
|
||
<quantity id="9A09B686E00A4C706D8DF8975ECDF812" box="[671,753,1908,1932]" metricMagnitude="-2" metricUnit="m" metricValue="5.7" pageId="16" pageNumber="17" unit="mm" value="57.0">57 mm</quantity>
|
||
, mesistele only, with proximal part of circular joints missing; diameter at fulcral ridge axis
|
||
<quantity id="9A09B686E00A4C706EF4F87B5E01F82E" box="[486,573,1944,1968]" metricMagnitude="-4" metricUnit="m" metricValue="8.0" pageId="16" pageNumber="17" unit="mm" value="0.8">0.8 mm</quantity>
|
||
proximally and
|
||
<quantity id="9A09B686E00A4C706DEBF87B5F62F82E" box="[761,862,1944,1968]" metricMagnitude="-3" metricUnit="m" metricValue="1.04" pageId="16" pageNumber="17" unit="mm" value="1.04">1.04 mm</quantity>
|
||
distally, columnal height respectively
|
||
<quantity id="9A09B686E00A4C706A06F87B5950F82E" box="[1300,1388,1944,1968]" metricMagnitude="-3" metricUnit="m" metricValue="3.5" pageId="16" pageNumber="17" unit="mm" value="3.5">3.5 mm</quantity>
|
||
and
|
||
<quantity id="9A09B686E00A4C706F85F85F5CD3F84A" box="[151,239,1980,2004]" metricMagnitude="-3" metricUnit="m" metricValue="4.3" pageId="16" pageNumber="17" unit="mm" value="4.3">4.3 mm</quantity>
|
||
with ratio of height to diameter 4.4 and 4.1. All articulations are synarthries with areolar depression and fulcral ridge more developed at distal than at proximal end (
|
||
<figureCitation id="C5CA07E6E00B4C716C57FF745FABFF31" box="[837,919,151,175]" captionStart="FIGURE 10" captionStartId="17.[151,250,1517,1540]" captionTargetBox="[151,1431,670,1489]" captionTargetId="figure@17.[151,1436,663,1495]" captionTargetPageId="17" captionText="FIGURE 10. Porphyrocrinus cf. incrassatus. A – E: Walvis specimen (MNHN IE- 2012 - 760); A: general view; B: aboral cup (B: basal ring, C 1: proximalmost columnal, R: radial ring); C: detail of arm with muscular synarthry (m) and synostosis (s) Between brachial (Br) pairs; D – E: distal mesistele columnal of preserved stalk; F – G: Cape Basin stalk fragment (ZSM 20070046); F: proximal columnal (more distal position than D – E); G: distal columnal." httpUri="https://zenodo.org/record/209428/files/figure.png" pageId="17" pageNumber="18">Fig. 10</figureCitation>
|
||
F–G). This stalk fragment belongs to a specimen smaller than the Walvis one.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="15EB48E8E00B4C716FD5FF035E31FDC1" pageId="17" pageNumber="18" type="discussion">
|
||
<paragraph id="5D4E1B63E00B4C716FD5FF035E31FDC1" blockId="17.[151,1436,151,607]" pageId="17" pageNumber="18">
|
||
<emphasis id="6F85C771E00B4C716FD5FF035D07FF66" bold="true" box="[199,315,224,248]" pageId="17" pageNumber="18">Remarks.</emphasis>
|
||
The Walvis
|
||
<taxonomicName id="9AF160E0E00B4C716ED5FF025EB8FF66" box="[455,644,223,248]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="17" pageNumber="18" phylum="Echinodermata" rank="species" species="incrassatus">
|
||
<emphasis id="6F85C771E00B4C716ED5FF025DE5FF66" box="[455,473,225,248]" italics="true" pageId="17" pageNumber="18">P.</emphasis>
|
||
cf.
|
||
<emphasis id="6F85C771E00B4C716D17FF025EB8FF66" box="[517,644,225,248]" italics="true" pageId="17" pageNumber="18">incrassatus</emphasis>
|
||
</taxonomicName>
|
||
and Hydrosnake
|
||
<taxonomicName id="9AF160E0E00B4C716C5BFF025FD8FF66" box="[841,996,225,248]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="17" pageNumber="18" phylum="Echinodermata" rank="species" species="incrassatus">
|
||
<emphasis id="6F85C771E00B4C716C5BFF025FD8FF66" box="[841,996,225,248]" italics="true" pageId="17" pageNumber="18">P. incrassatus</emphasis>
|
||
</taxonomicName>
|
||
are both about 1.75 larger than the
|
||
<typeStatus id="824AA5C1E00B4C716A7DFF3C5CE9FE83" pageId="17" pageNumber="18" type="holotype">holotype</typeStatus>
|
||
of
|
||
<taxonomicName id="9AF160E0E00B4C716FEBFEE65DAFFE82" box="[249,403,261,284]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="17" pageNumber="18" phylum="Echinodermata" rank="species" species="incrassatus">
|
||
<emphasis id="6F85C771E00B4C716FEBFEE65DAFFE82" box="[249,403,261,284]" italics="true" pageId="17" pageNumber="18">P. incrassatus</emphasis>
|
||
</taxonomicName>
|
||
from
|
||
<collectingCountry id="25E65BF3E00B4C716EC5FEE75E5AFE82" box="[471,614,260,284]" name="Saint Helena, Ascension and Tristan da Cunha" pageId="17" pageNumber="18">Saint Helena</collectingCountry>
|
||
(
|
||
<bibRefCitation id="39606692E00B4C716D66FEE75EC2FE82" author="Gislen" box="[628,766,260,284]" pageId="17" pageNumber="18" refString="Gislen, T. (1933) A small collection of crinoids from St. Helena. Videnskabelige Meddelelser fra Dansk Naturhistorish Forening, 93, 475 - 483." type="journal article" year="1933">Gislén 1933</bibRefCitation>
|
||
) and the largest Thalassa specimens from the Bay of Biscay (
|
||
<bibRefCitation id="39606692E00B4C716F8CFEC45D1CFEA1" author="Roux" box="[158,288,295,319]" pageId="17" pageNumber="18" refString="Roux, M. (1977) Les Bourgueticrinina (Crinoidea) recueillis par la " Thalassa " dans le golfe de Gascogne: anatomie comparee des pedoncules et systematique. Bulletin du Museum national d'Histoire Naturelle, Paris, serie 3, 426, 325 - 384." type="journal article" year="1977">Roux 1977</bibRefCitation>
|
||
). The Walvis specimen is the only one that retains the proximal crown. It differs from the Hydrosnake specimen in having shorter radials and fewer proximal columnals although these differences may be due to its larger size or to intraspecific variations. Such wide range of variation in external morphology was also observed (
|
||
<bibRefCitation id="39606692E00B4C716F8CFE775D7DFE32" author="Messing" box="[158,321,404,428]" pageId="17" pageNumber="18" refString="Messing, C. G. (2007) The crinoid fauna (Echinodermata, Crinoidea) of Palau. Pacific Science, 61, 1, 91 - 111." type="journal article" year="2007">Messing 2007</bibRefCitation>
|
||
) in the Indo-Pacific species
|
||
<taxonomicName id="9AF160E0E00B4C716D98FE765F80FE32" authority="Gislen, 1925" authorityName="Gislen" authorityYear="1925" box="[650,956,404,428]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="17" pageNumber="18" phylum="Echinodermata" rank="species" species="verrocosus">
|
||
<emphasis id="6F85C771E00B4C716D98FE765F1EFE32" box="[650,802,405,428]" italics="true" pageId="17" pageNumber="18">P. verrocosus</emphasis>
|
||
<bibRefCitation id="39606692E00B4C716C39FE775F80FE32" author="Gislen" box="[811,956,404,428]" pageId="17" pageNumber="18" refString="Gislen, T. (1925) Two stalked crinoids from the Kei Islands. Videnskabelige Meddelelser fra Dansk Naturhistorish Forening, 79, 85 - 95." type="journal article" year="1925">Gislén, 1925</bibRefCitation>
|
||
</taxonomicName>
|
||
(=
|
||
<taxonomicName id="9AF160E0E00B4C716CFAFE765969FE32" authority="A.M. Clark, 1973" authorityName="A.M. Clark" authorityYear="1973" box="[1000,1365,404,428]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="17" pageNumber="18" phylum="Echinodermata" rank="species" species="polyarthra">
|
||
<emphasis id="6F85C771E00B4C716CFAFE765841FE32" box="[1000,1149,404,428]" italics="true" pageId="17" pageNumber="18">P. polyarthra</emphasis>
|
||
<bibRefCitation id="39606692E00B4C716B94FE775969FE32" author="Clark" box="[1158,1365,404,428]" pageId="17" pageNumber="18" refString="Clark, A. M. (1973) Some new taxa of recent stalked Crinoidea. Bulletin of the British Museum Natural History, Zoology, 25, 7, 267 - 288." type="journal article" year="1973">A.M. Clark, 1973</bibRefCitation>
|
||
</taxonomicName>
|
||
). This species is larger with short brachials not constricted at mid height, and lives at significantly shallower depths (
|
||
<quantity id="9A09B686E00B4C716F8CFE3F5D1FFE6A" box="[158,291,476,500]" metricMagnitude="2" metricUnit="m" metricValue="3.09" metricValueMax="4.0" metricValueMin="2.18" pageId="17" pageNumber="18" unit="m" value="309.0" valueMax="400.0" valueMin="218.0">218–400 m</quantity>
|
||
). Therefore, the Walvis and Cape Basin specimens are not interpreted as juvenile specimens of
|
||
<taxonomicName id="9AF160E0E00B4C716A46FE3E5CD2FD86" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="17" pageNumber="18" phylum="Echinodermata" rank="species" species="verrucosus">
|
||
<emphasis id="6F85C771E00B4C716A46FE3E5CD2FD86" italics="true" pageId="17" pageNumber="18">P. verrucosus</emphasis>
|
||
</taxonomicName>
|
||
. They lived at greater depth (more than
|
||
<quantity id="9A09B686E00B4C716DA1FE1C5F35FD89" box="[691,777,511,535]" metricMagnitude="3" metricUnit="m" metricValue="5.0" pageId="17" pageNumber="18" unit="m" value="5000.0">5000 m</quantity>
|
||
) than the other specimens of
|
||
<taxonomicName id="9AF160E0E00B4C716B47FDE258CCFD86" box="[1109,1264,513,536]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="17" pageNumber="18" phylum="Echinodermata" rank="species" species="incrassatus">
|
||
<emphasis id="6F85C771E00B4C716B47FDE258CCFD86" box="[1109,1264,513,536]" italics="true" pageId="17" pageNumber="18">P. incrassatus</emphasis>
|
||
</taxonomicName>
|
||
(<
|
||
<quantity id="9A09B686E00B4C716A1CFE1C5955FD89" box="[1294,1385,511,535]" metricMagnitude="3" metricUnit="m" metricValue="3.0" pageId="17" pageNumber="18" unit="m" value="3000.0">3000 m</quantity>
|
||
). As a complete specimen of
|
||
<taxonomicName id="9AF160E0E00B4C716EB6FDC65E02FDA2" box="[420,574,549,572]" class="Crinoidea" family="Phrynocrinidae" genus="Porphyrocrinus" higherTaxonomySource="GBIF" kingdom="Animalia" order="Millericrinida" pageId="17" pageNumber="18" phylum="Echinodermata" rank="species" species="incrassatus">
|
||
<emphasis id="6F85C771E00B4C716EB6FDC65E02FDA2" box="[420,574,549,572]" italics="true" pageId="17" pageNumber="18">P. incrassatus</emphasis>
|
||
</taxonomicName>
|
||
has not yet been found, the attribution of specimens listed in
|
||
<tableCitation id="10732ED8E00B4C716BF8FDC75900FDA2" box="[1258,1340,548,572]" captionStart="TABLE 5" captionStartId="16.[151,235,586,607]" captionTargetBox="[151,1435,666,987]" captionTargetPageId="16" captionText="TABLE 5. Sampling stations of the eleven specimens attributed to Porphyrocrinus incrassatus (Gislén, 1933) or with currently" httpUri="http://table.plazi.org/id/098E4BEBE00A4C706F85FDA959A7FDC1" pageId="17" pageNumber="18" tableUuid="098E4BEBE00A4C706F85FDA959A7FDC1">Table 5</tableCitation>
|
||
to a single species remains questionable.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |