280 lines
34 KiB
XML
280 lines
34 KiB
XML
<document id="78D3CF187904157C2065C73D7D1FDED4" ID-DOI="10.5281/zenodo.275810" ID-GBIF-Dataset="06e539f6-e000-455a-8389-7f3ce6fcf1c3" ID-ISSN="1175-5326" ID-Zenodo-Dep="275810" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460167503677" checkinUser="plazi" docAuthor="Komai, Tomoyuki & Chan, Tin-Yam" docDate="2010" docId="03E34C5DFFD46710FF2370973CCAFD1D" docLanguage="en" docName="zt02372p032.pdf" docOrigin="Zootaxa 2372" docStyle="DocumentStyle:890A69B780ED73D6DB8551B71C8AC79E.4:Zootaxa.2009-2012.journal_article" docStyleId="890A69B780ED73D6DB8551B71C8AC79E" docStyleName="Zootaxa.2009-2012.journal_article" docStyleVersion="4" docTitle="Alvinocaridinides Komai & Chan, 2010, gen. nov." docType="treatment" docVersion="7" lastPageNumber="26" masterDocId="FFDA3425FFDE671BFFB470003E4DFF8A" masterDocTitle="A new genus and two new species of alvinocaridid shrimps (Crustacea: Decapoda: Caridea) from a hydrothermal vent field off northeastern Taiwan *" masterLastPageNumber="32" masterPageNumber="15" pageNumber="25" updateTime="1698235870871" updateUser="plazi">
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<mods:titleInfo id="3971F4C93C69059B617D811BE74F1C62">
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<mods:title id="DC101841794B72D30F622016A89CF28A">A new genus and two new species of alvinocaridid shrimps (Crustacea: Decapoda: Caridea) from a hydrothermal vent field off northeastern Taiwan *</mods:title>
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<mods:namePart id="F80518C5D406C1BF7F048257D5014754">Komai, Tomoyuki</mods:namePart>
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<mods:namePart id="8E9108E8FDCAC753B86435F26F639420">Chan, Tin-Yam</mods:namePart>
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<mods:title id="E8424014CE53D7D8877F6806F7247573">Zootaxa</mods:title>
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<mods:part id="B75EDDBE8F0A6F9DD58B582437BFB3F9">
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<mods:date id="7F224BC5358E6296F7C79B08A8EDD483">2010</mods:date>
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<mods:identifier id="2E97975D9B4B863D98A9002D039961DE" type="DOI">10.5281/zenodo.275810</mods:identifier>
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<treatment id="03E34C5DFFD46710FF2370973CCAFD1D" ID-DOI="http://doi.org/10.5281/zenodo.6206519" ID-GBIF-Taxon="127655040" ID-Zenodo-Dep="6206519" LSID="urn:lsid:plazi:treatment:03E34C5DFFD46710FF2370973CCAFD1D" httpUri="http://treatment.plazi.org/id/03E34C5DFFD46710FF2370973CCAFD1D" lastPageId="11" lastPageNumber="26" pageId="10" pageNumber="25">
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<subSubSection id="C350AEC0FFD46711FF2370973FACFF3B" box="[151,481,151,177]" pageId="10" pageNumber="25" type="nomenclature">
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<paragraph id="8BF5FD4BFFD46711FF2370973FACFF3B" blockId="10.[151,481,151,177]" box="[151,481,151,177]" pageId="10" pageNumber="25">
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<heading id="D0BD4A27FFD46711FF2370973FACFF3B" bold="true" box="[151,481,151,177]" fontSize="11" level="1" pageId="10" pageNumber="25" reason="1">
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<emphasis id="B93E2159FFD46711FF2370973FACFF3B" bold="true" box="[151,481,151,177]" pageId="10" pageNumber="25">
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<taxonomicName id="4C4A86C8FFD46711FF2370973F21FF3B" ID-CoL="9CKLK" box="[151,364,151,177]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaridinides" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus" status="gen. nov.">
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<emphasis id="B93E2159FFD46711FF2370973F21FF3B" bold="true" box="[151,364,151,177]" italics="true" pageId="10" pageNumber="25">Alvinocaridinides</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A20D9C22FFD46711FEC770973FACFF3B" box="[371,481,151,177]" pageId="10" pageNumber="25" rank="genus">gen. nov.</taxonomicNameLabel>
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C350AEC0FFD46711FF2370DF3B3BFF70" box="[151,1398,223,250]" pageId="10" pageNumber="25" type="materials_examined">
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<paragraph id="8BF5FD4BFFD46711FF2370DF3B3BFF70" blockId="10.[151,1437,223,2004]" box="[151,1398,223,250]" pageId="10" pageNumber="25">
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<emphasis id="B93E2159FFD46711FF2370DF3F74FF73" bold="true" box="[151,313,223,249]" pageId="10" pageNumber="25">
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<typeStatus id="54F143E9FFD46711FF2370DF3E99FF73" box="[151,212,223,249]" pageId="10" pageNumber="25">Type</typeStatus>
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species.
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</emphasis>
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<taxonomicName id="4C4A86C8FFD46711FEF470E03C35FF73" box="[320,632,224,249]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaridinides" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="species" species="formosa" status="sp. nov.">
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<emphasis id="B93E2159FFD46711FEF470E03C35FF73" box="[320,632,224,249]" italics="true" pageId="10" pageNumber="25">Alvinocaridinides formosa</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A20D9C22FFD46711FDCB70E03C91FF70" box="[639,732,224,250]" pageId="10" pageNumber="25" rank="species">sp. nov.</taxonomicNameLabel>
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, by present designation and monotypy; gender feminine.
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</paragraph>
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</subSubSection>
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<subSubSection id="C350AEC0FFD46711FF7271053A0AFC10" pageId="10" pageNumber="25" type="diagnosis">
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<paragraph id="8BF5FD4BFFD46711FF7271053A0AFC10" blockId="10.[151,1437,223,2004]" pageId="10" pageNumber="25">
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<emphasis id="B93E2159FFD46711FF7271053F0BFE95" bold="true" box="[198,326,261,287]" pageId="10" pageNumber="25">Diagnosis.</emphasis>
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Rostrum short, not overreaching distal margin of antennular peduncle, somewhat depressed dorsoventrally, narrow triangular in dorsal view, dorsal midline elevated in blunt ridge, armed with series of teeth not extending to carapace; tip acuminate; ventral surface nearly flat, usually unarmed. Carapace not extremely inflated laterally, with moderately large antennal tooth and large pterygostomial tooth; postrostral ridge absent; suborbital lobe absent; pair of large yellowish white spots present inside cephalothorax posterior to orbits, visible through transparent cuticle, possibly representing posterior extension of eyes. Fourth and fifth abdominal pleura each with posteroventral tooth, latter with 1 or more denticles on posterolateral margin. Telson with dorsolateral spines arranged in sinuous row (second and/or third spines arising distinctly mesial to other spines); posterior margin with row of numerous plumose setae. Eyes broadly fused mesially, each unarmed on anterior surface. First segment of antennular peduncle with small distomesial tooth. Antennal scale oval, not locked with antennular peduncle; distolateral tooth acute. Exopod of first maxilliped with small triangular projection on mesial margin. No prominent setae on surfaces of scaphognathite and exopod of first maxilliped. No strap-like epipods on third maxilliped to fourth pereopods. Ischium of second pereopod unarmed or armed with 1 ventrolateral spine. Dactyli of third to fifth pereopods each with several spines arranged in 2 or 3 rows on flexor surface; meri unarmed or armed with 1 lateral spine in third and fourth pereopods, unarmed in fifth. Appendices internae on second to fourth pleopods small, slender, tapering distally, devoid of cincinnuli, that of fifth pleopod better developed, with cincinnuli. Protopod of uropod with acute posterolateral angle; exopod with 2 movable spines at posterolateral angle.
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</paragraph>
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</subSubSection>
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<subSubSection id="C350AEC0FFD46711FF7273A53D0DF85E" pageId="10" pageNumber="25" type="discussion">
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<paragraph id="8BF5FD4BFFD46711FF7273A53B2EFA65" blockId="10.[151,1437,223,2004]" pageId="10" pageNumber="25">
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<emphasis id="B93E2159FFD46711FF7273A53F0DFC35" bold="true" box="[198,320,933,959]" pageId="10" pageNumber="25">Remarks.</emphasis>
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There are some intermediate forms between
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<taxonomicName id="4C4A86C8FFD46711FCE473A53D9AFC34" box="[848,983,933,958]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaris" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FCE473A53D9AFC34" box="[848,983,933,958]" italics="true" pageId="10" pageNumber="25">Alvinocaris</emphasis>
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</taxonomicName>
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and the
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<taxonomicName id="4C4A86C8FFD46711FB8F73A53AF2FC34" box="[1083,1215,933,958]" class="Malacostraca" family="Alvinocarididae" genus="Chorocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FB8F73A53AF2FC34" box="[1083,1215,933,958]" italics="true" pageId="10" pageNumber="25">Chorocaris</emphasis>
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</taxonomicName>
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+
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<taxonomicName id="4C4A86C8FFD46711FB6A73A53B1DFC34" box="[1246,1360,933,958]" class="Malacostraca" family="Alvinocarididae" genus="Rimicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FB6A73A53B1DFC34" box="[1246,1360,933,958]" italics="true" pageId="10" pageNumber="25">Rimicaris</emphasis>
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</taxonomicName>
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group (e.g.
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<bibRefCitation id="EFDB80BAFFD46711FF6C73CA3C63FC6E" author="Komai" box="[216,558,970,996]" pageId="10" pageNumber="32" refString="Komai, T. & Segonzac, M. (2005) A revision of the genus Alvinocaris Williams and Chace (Crustacea: Decapoda: Caridea: Alvinocarididae), with descriptions of a new genus and a new species of Alvinocaris. Journal of Natural History, 39, 1111 - 1175." type="journal article" year="2005">Komai and Segonzac 2005</bibRefCitation>
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,
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<bibRefCitation id="EFDB80BAFFD46711FD8873CA3C32FC6E" author="Segonzac" box="[572,639,970,996]" pageId="10" pageNumber="32" refString="Komai, T. & Segonzac, M. (2008) Taxonomic review of the hydrothermal vent shrimp genera Rimicaris Williams & Rona and Chorocaris Martin & Hessler (Crustacea: Decapoda: Caridea: Alvinocarididae). Journal of Shellfish Research, 27 (1), 21 - 41." type="journal article" year="2008">2008</bibRefCitation>
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; Komai
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<emphasis id="B93E2159FFD46711FD5E73CA3D6EFC69" box="[746,803,970,995]" italics="true" pageId="10" pageNumber="25">et al</emphasis>
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. 2007). This new genus is superficially similar to
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<taxonomicName id="4C4A86C8FFD46711FF2373F03F6DFB83" box="[151,288,1008,1033]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaris" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FF2373F03F6DFB83" box="[151,288,1008,1033]" italics="true" pageId="10" pageNumber="25">Alvinocaris</emphasis>
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</taxonomicName>
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in the well-developed, dorsally dentate rostrum, but several presumably apomorphic characters suggest that it is rather close to
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<taxonomicName id="4C4A86C8FFD46711FD9F74153C8AFBA4" box="[555,711,1045,1070]" class="Malacostraca" family="Alvinocarididae" genus="Shinkaicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FD9F74153C8AFBA4" box="[555,711,1045,1070]" italics="true" pageId="10" pageNumber="25">Shinkaicaris</emphasis>
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</taxonomicName>
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,
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<taxonomicName id="4C4A86C8FFD46711FD6C74153D02FBA4" box="[728,847,1045,1070]" class="Malacostraca" family="Alvinocarididae" genus="Opaepele" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FD6C74153D02FBA4" box="[728,847,1045,1070]" italics="true" pageId="10" pageNumber="25">Opaepele</emphasis>
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</taxonomicName>
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,
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<taxonomicName id="4C4A86C8FFD46711FCD474153DA0FBA4" box="[864,1005,1045,1070]" class="Malacostraca" family="Alvinocarididae" genus="Chorocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FCD474153DA0FBA4" box="[864,1005,1045,1070]" italics="true" pageId="10" pageNumber="25">Chorocaris</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C4A86C8FFD46711FB9F74153AE9FBA4" box="[1067,1188,1045,1070]" class="Malacostraca" family="Alvinocarididae" genus="Rimicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FB9F74153AE9FBA4" box="[1067,1188,1045,1070]" italics="true" pageId="10" pageNumber="25">Rimicaris</emphasis>
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</taxonomicName>
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. These apomorphic characters include: ventral surface of rostrum flattened, unarmed or armed only with one minute subterminal tooth at most; postrostral ridge low, not extending to midlength of carapace; dorsolateral spines on telson arranged in sinuous row, with second and/or third spines arising distinctly mesial to other spines; dactyli of third to fifth pereopods armed with several spines arranged in 2 or more rows on flexor surfaces; spination of meri of third to fifth pereopods showing tendency of reduction; and uropodal exopod bearing 2 movable spines at posterolateral angle (see Komai & Segonzac 2003, 2005, 2008; Komai
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<emphasis id="B93E2159FFD46711FB1E74F53AA1FA84" box="[1194,1260,1269,1294]" italics="true" pageId="10" pageNumber="25">et al.</emphasis>
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2007). These apomorphies are not present in
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<taxonomicName id="4C4A86C8FFD46711FDB8751B3CDEFABE" box="[524,659,1307,1332]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaris" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FDB8751B3CDEFABE" box="[524,659,1307,1332]" italics="true" pageId="10" pageNumber="25">Alvinocaris</emphasis>
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</taxonomicName>
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, which has: ventral surface of rostrum carinate, with one or more teeth; postrostral ridge high, extending beyond midlength of carapace; dorsolateral spines on telson arranged in straight row; dactyli of third to fifth pereopods each with single row of accessory spinules on flexor margin; meri of third to fifth pereopods each with 1 or 2 lateral spines (though spination tends to be reduced in
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<taxonomicName id="4C4A86C8FFD46711FA36758B3F4EFA43" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaris" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="species" species="williamsi">
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<emphasis id="B93E2159FFD46711FA36758B3F4EFA43" italics="true" pageId="10" pageNumber="25">A. williamsi</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C4A86C8FFD46711FE8875B03FEBFA43" box="[316,422,1456,1481]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaris" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="species" species="chelys" status="sp. nov.">
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<emphasis id="B93E2159FFD46711FE8875B03FEBFA43" box="[316,422,1456,1481]" italics="true" pageId="10" pageNumber="25">A. chelys</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A20D9C22FFD46711FE1A75B03C44FA40" box="[430,521,1456,1482]" pageId="10" pageNumber="25" rank="species">sp. nov.</taxonomicNameLabel>
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). Furthermore, the eyes are unarmed on the anterior facies in these genera, as well as in the new genus, but they possess spiniform denticles on the anterodorsal surface in
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<taxonomicName id="4C4A86C8FFD46711FB6175D53B11FA64" box="[1237,1372,1493,1518]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaris" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FB6175D53B11FA64" box="[1237,1372,1493,1518]" italics="true" pageId="10" pageNumber="25">Alvinocaris</emphasis>
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</taxonomicName>
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.
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</paragraph>
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<paragraph id="8BF5FD4BFFD46711FF7275FA3FB9F890" blockId="10.[151,1437,223,2004]" pageId="10" pageNumber="25">
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It is interesting that there is a pair of large light yellowish shiny spots visible inside the carapace just posterior to the orbits in
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<taxonomicName id="4C4A86C8FFD46711FE7F76203D5CF9B3" box="[459,785,1568,1593]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaridinides" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="species" species="formosa">
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<emphasis id="B93E2159FFD46711FE7F76203D5CF9B3" box="[459,785,1568,1593]" italics="true" pageId="10" pageNumber="25">Alvinocaridinides formosa</emphasis>
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</taxonomicName>
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gen. et sp. nov. These shiny spots may represent an extension of the eyes, which is homologous to the “dorsal eye” found in species of
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<taxonomicName id="4C4A86C8FFD46711FBD876453A93F9D4" box="[1132,1246,1605,1630]" class="Malacostraca" family="Alvinocarididae" genus="Rimicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
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<emphasis id="B93E2159FFD46711FBD876453A93F9D4" box="[1132,1246,1605,1630]" italics="true" pageId="10" pageNumber="25">Rimicaris</emphasis>
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</taxonomicName>
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(see
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<bibRefCitation id="EFDB80BAFFD46711FAA976453F5BF90E" author="Van" pageId="10" pageNumber="32" refString="Van Dover, C., Szuts, E. Z., Chamberlain, S. C. & Cann, J. R. (1989) A novel eye in ' eyeless' shrimp from hydrothermal vents of the Mid-Atlantic Ridge. Nature, 337, 458 - 460." type="journal article" year="1989">
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Van Dover
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<emphasis id="B93E2159FFD46711FF23766B3E87F90E" box="[151,202,1643,1668]" italics="true" pageId="10" pageNumber="25">et al</emphasis>
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. 1989
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</bibRefCitation>
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;
|
||
<bibRefCitation id="EFDB80BAFFD46711FE96766A3C4FF90E" author="O'Neill" box="[290,514,1642,1668]" pageId="10" pageNumber="32" refString="O'Neill, P. J., Jinks, R. N., Herzog, E. D., Battelle, B. - A., Kass, L., Renninger, G. & Chamberlain, S. C. (1995) The morphology of the dorsal eye of the hydrothermal vent shrimp, Rimicaris exoculata. Visual Neuroscience, 12, 861 - 875." type="journal article" year="1995">
|
||
O’Neill
|
||
<emphasis id="B93E2159FFD46711FE36766B3FF0F90E" box="[386,445,1643,1668]" italics="true" pageId="10" pageNumber="25">et al.</emphasis>
|
||
1995
|
||
</bibRefCitation>
|
||
;
|
||
<bibRefCitation id="EFDB80BAFFD46711FDB9766A3CA7F90E" author="Chamberlain" box="[525,746,1642,1668]" pageId="10" pageNumber="31" refString="Chamberlain, S. C. (2000) Vision in hydrothermal vent shrimp. Philosophical Transactions of the Royal Society, B, Biological Sciences, 355, 1151 - 1154." type="journal article" year="2000">Chamberlain 2000</bibRefCitation>
|
||
; Desbruyères
|
||
<emphasis id="B93E2159FFD46711FC3B766B3D84F90E" box="[911,969,1643,1668]" italics="true" pageId="10" pageNumber="25">et al.</emphasis>
|
||
2006). Similar spots are present at least in species of
|
||
<taxonomicName id="4C4A86C8FFD46711FE8476903FF9F923" box="[304,436,1680,1705]" class="Malacostraca" family="Alvinocarididae" genus="Chorocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD46711FE8476903FF9F923" box="[304,436,1680,1705]" italics="true" pageId="10" pageNumber="25">Chorocaris</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C4A86C8FFD46711FE7776903C7EF923" box="[451,563,1680,1705]" class="Malacostraca" family="Alvinocarididae" genus="Opaepele" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD46711FE7776903C7EF923" box="[451,563,1680,1705]" italics="true" pageId="10" pageNumber="25">Opaepele</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C4A86C8FFD46711FDF676903DD6F920" authority="Vereshchaka, 1997" authorityName="Vereshchaka" authorityYear="1997" box="[578,923,1680,1706]" class="Malacostraca" family="Alvinocarididae" genus="Mirocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD46711FDF676903CFBF923" box="[578,694,1680,1705]" italics="true" pageId="10" pageNumber="25">Mirocaris</emphasis>
|
||
<bibRefCitation id="EFDB80BAFFD46711FD0976903DD6F920" author="Vereshchaka" box="[701,923,1680,1706]" pageId="10" pageNumber="32" refString="Vereshchaka, A. L. (1997) A new family for a deep-sea caridean shrimp from North Atlantic hydrothermal vents. Journal of the Marine Biological Association of United Kingdom, 77, 425 - 438." type="journal article" year="1997">Vereshchaka, 1997</bibRefCitation>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C4A86C8FFD46711FC6076903BD6F920" authority="Komai & Segonzac, 2004" authorityName="Komai & Segonzac" authorityYear="2004" box="[980,1435,1680,1706]" class="Malacostraca" family="Alvinocarididae" genus="Nautilocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD46711FC6076903A2AF923" box="[980,1127,1680,1705]" italics="true" pageId="10" pageNumber="25">Nautilocaris</emphasis>
|
||
<bibRefCitation id="EFDB80BAFFD46711FBD976903BD6F920" author="Komai" box="[1133,1435,1680,1706]" pageId="10" pageNumber="32" refString="Komai, T. & Segonzac, M. (2004) A new genus and species of alvinocaridid shrimp (Crustacea: Decapoda: Caridea) from hydrothermal vents on the North Fiji and Lau Basins, south-western Pacific. Journal of the Marine Biological Association of U. K., 84, 1179 - 1188." type="journal article" year="2004">Komai & Segonzac, 2004</bibRefCitation>
|
||
</taxonomicName>
|
||
(Desbruyères
|
||
<emphasis id="B93E2159FFD46711FEF476B53F33F944" box="[320,382,1717,1742]" italics="true" pageId="10" pageNumber="25">et al.</emphasis>
|
||
2006;
|
||
<bibRefCitation id="EFDB80BAFFD46711FE6776B53C82F945" author="Tsuchida" box="[467,719,1717,1743]" pageId="10" pageNumber="32" refString="Tsuchida, S., Yamaguchi, T., Komai, T. & Watanabe, H. (2008) Chapter 11 Arthropoda. In: Fujikura, K., Okutani, T. & Maruyama, T. (Eds.), Deep-sea Life - Biological Observations using Research Submersibles. Tokai University Press, Hatano, 178 - 200 pp. (in Japanese)" type="book chapter" year="2008">
|
||
Tsuchida
|
||
<emphasis id="B93E2159FFD46711FDFC76B53CCBF944" box="[584,646,1717,1742]" italics="true" pageId="10" pageNumber="25">et al.</emphasis>
|
||
2008
|
||
</bibRefCitation>
|
||
), whereas such spots are absent in
|
||
<taxonomicName id="4C4A86C8FFD46711FBCD76B53F12F97E" authority="Komai and Segonzac 2005" authorityName="Komai and Segonzac" authorityYear="2005" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaris" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD46711FBCD76B53B49F944" box="[1145,1284,1717,1742]" italics="true" pageId="10" pageNumber="25">Alvinocaris</emphasis>
|
||
(
|
||
<bibRefCitation id="EFDB80BAFFD46711FAA176B53F1BF97E" author="Komai" pageId="10" pageNumber="32" refString="Komai, T. & Segonzac, M. (2005) A revision of the genus Alvinocaris Williams and Chace (Crustacea: Decapoda: Caridea: Alvinocarididae), with descriptions of a new genus and a new species of Alvinocaris. Journal of Natural History, 39, 1111 - 1175." type="journal article" year="2005">Komai and Segonzac 2005</bibRefCitation>
|
||
)
|
||
</taxonomicName>
|
||
. The presence of this spot-like organ also suggests a close relationship between the new genus and the derived genera.
|
||
</paragraph>
|
||
<paragraph id="8BF5FD4BFFD46711FF7277253D0DF85E" blockId="10.[151,1437,223,2004]" pageId="10" pageNumber="25">
|
||
<taxonomicName id="4C4A86C8FFD46711FF7277253F14F8B4" box="[198,345,1829,1854]" class="Malacostraca" family="Alvinocarididae" genus="Shinkaicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD46711FF7277253F14F8B4" box="[198,345,1829,1854]" italics="true" pageId="10" pageNumber="25">Shinkaicaris</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName id="4C4A86C8FFD46711FE4C77253C85F8B4" box="[504,712,1829,1854]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaridinides" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus" status="gen. nov.">
|
||
<emphasis id="B93E2159FFD46711FE4C77253C85F8B4" box="[504,712,1829,1854]" italics="true" pageId="10" pageNumber="25">Alvinocaridinides</emphasis>
|
||
</taxonomicName>
|
||
<taxonomicNameLabel id="A20D9C22FFD46711FD6677253D73F8B5" box="[722,830,1829,1855]" pageId="10" pageNumber="25" rank="genus">gen. nov.</taxonomicNameLabel>
|
||
in having a better developed, laterally compressed rostrum, which overreaches the distal margin of the first segment of the antennular peduncle, a distinct suborbital lobe and a sharply buttressed antennal tooth. Furthermore, in
|
||
<taxonomicName id="4C4A86C8FFD46711FC5A77703ACCF803" box="[1006,1153,1904,1929]" class="Malacostraca" family="Alvinocarididae" genus="Shinkaicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="10" pageNumber="25" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD46711FC5A77703ACCF803" box="[1006,1153,1904,1929]" italics="true" pageId="10" pageNumber="25">Shinkaicaris</emphasis>
|
||
</taxonomicName>
|
||
the dorsal rostral series and rostral ridge extend slightly onto the carapace beyond the level of the posterior margin of the orbit, rather than being limited to the rostrum proper in the new genus.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C350AEC0FFD56710FF7270983C48FDC6" pageId="11" pageNumber="26" type="description">
|
||
<paragraph id="8BF5FD4BFFD56710FF7270983DAAFF76" blockId="11.[151,1436,152,663]" pageId="11" pageNumber="26">
|
||
<taxonomicName id="4C4A86C8FFD56710FF7270983F7AFF3B" box="[198,311,152,177]" class="Malacostraca" family="Alvinocarididae" genus="Opaepele" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FF7270983F7AFF3B" box="[198,311,152,177]" italics="true" pageId="11" pageNumber="26">Opaepele</emphasis>
|
||
</taxonomicName>
|
||
is distinguished from
|
||
<taxonomicName id="4C4A86C8FFD56710FDF670983D5EFF3B" box="[578,787,152,177]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaridinides" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FDF670983D5EFF3B" box="[578,787,152,177]" italics="true" pageId="11" pageNumber="26">Alvinocaridinides</emphasis>
|
||
</taxonomicName>
|
||
by the lack of conspicuous dorsal teeth and middorsal ridge of the rostrum, although these structures are often traceable in young individuals. The second to fifth pereopods completely lack armature on the ischia and meri in
|
||
<taxonomicName id="4C4A86C8FFD56710FCC470E23DADFF71" box="[880,992,226,251]" class="Malacostraca" family="Alvinocarididae" genus="Opaepele" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FCC470E23DADFF71" box="[880,992,226,251]" italics="true" pageId="11" pageNumber="26">Opaepele</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="8BF5FD4BFFD56710FF7271083F16FE56" blockId="11.[151,1436,152,663]" pageId="11" pageNumber="26">
|
||
<taxonomicName id="4C4A86C8FFD56710FF7271083F06FEAB" box="[198,331,264,289]" class="Malacostraca" family="Alvinocarididae" genus="Chorocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FF7271083F06FEAB" box="[198,331,264,289]" italics="true" pageId="11" pageNumber="26">Chorocaris</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C4A86C8FFD56710FE3171083FBAFEAB" box="[389,503,264,289]" class="Malacostraca" family="Alvinocarididae" genus="Rimicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FE3171083FBAFEAB" box="[389,503,264,289]" italics="true" pageId="11" pageNumber="26">Rimicaris</emphasis>
|
||
</taxonomicName>
|
||
are easily separated from the new genus by: the rounded or broadly triangular, unarmed rostrum (greatly reduced in adults of
|
||
<taxonomicName id="4C4A86C8FFD56710FD77712D3D7BFECC" box="[707,822,301,326]" class="Malacostraca" family="Alvinocarididae" genus="Rimicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FD77712D3D7BFECC" box="[707,822,301,326]" italics="true" pageId="11" pageNumber="26">Rimicaris</emphasis>
|
||
</taxonomicName>
|
||
); blunt antennal tooth on the carapace (also greatly reduced in adults of
|
||
<taxonomicName id="4C4A86C8FFD56710FE2671523C45FEE1" box="[402,520,338,363]" class="Malacostraca" family="Alvinocarididae" genus="Rimicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FE2671523C45FEE1" box="[402,520,338,363]" italics="true" pageId="11" pageNumber="26">Rimicaris</emphasis>
|
||
</taxonomicName>
|
||
); less acuminate pterygostomial angle of the carapace (broadly rounded in
|
||
<taxonomicName id="4C4A86C8FFD56710FF2371783F3CFE1B" box="[151,369,376,401]" class="Malacostraca" family="Alvinocarididae" genus="Chorocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="species" species="chacei">
|
||
<emphasis id="B93E2159FFD56710FF2371783F3CFE1B" box="[151,369,376,401]" italics="true" pageId="11" pageNumber="26">Chorocaris chacei</emphasis>
|
||
</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C4A86C8FFD56710FE3471783C63FE1B" box="[384,558,376,401]" class="Malacostraca" family="Alvinocarididae" genus="Chorocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="species" species="vandoverae">
|
||
<emphasis id="B93E2159FFD56710FE3471783C63FE1B" box="[384,558,376,401]" italics="true" pageId="11" pageNumber="26">C. vandoverae</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C4A86C8FFD56710FDDC71783C96FE1B" box="[616,731,376,401]" class="Malacostraca" family="Alvinocarididae" genus="Rimicaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FDDC71783C96FE1B" box="[616,731,376,401]" italics="true" pageId="11" pageNumber="26">Rimicaris</emphasis>
|
||
</taxonomicName>
|
||
spp.); non-dentate fourth and fifth abdominal pleura; and a complete absence of spines on the meri and ischia of the second to fifth pereopods in adults (see
|
||
<bibRefCitation id="EFDB80BAFFD56710FA98719D3F03FE56" author="Komai" pageId="11" pageNumber="32" refString="Komai, T. & Segonzac, M. (2008) Taxonomic review of the hydrothermal vent shrimp genera Rimicaris Williams & Rona and Chorocaris Martin & Hessler (Crustacea: Decapoda: Caridea: Alvinocarididae). Journal of Shellfish Research, 27 (1), 21 - 41." type="journal article" year="2008">Komai & Segonzac 2008</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
<paragraph id="8BF5FD4BFFD56710FF7271E83C48FDC6" blockId="11.[151,1436,152,663]" pageId="11" pageNumber="26">
|
||
The new genus differs from
|
||
<taxonomicName id="4C4A86C8FFD56710FD8171E83CE4FD8B" box="[565,681,488,513]" class="Malacostraca" family="Alvinocarididae" genus="Mirocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FD8171E83CE4FD8B" box="[565,681,488,513]" italics="true" pageId="11" pageNumber="26">Mirocaris</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C4A86C8FFD56710FD5B71E83DCFFD8B" box="[751,898,488,513]" class="Malacostraca" family="Alvinocarididae" genus="Nautilocaris" higherTaxonomySource="GBIF" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FD5B71E83DCFFD8B" box="[751,898,488,513]" italics="true" pageId="11" pageNumber="26">Nautilocaris</emphasis>
|
||
</taxonomicName>
|
||
, in lacking strap-like epipods on the third maxilliped to fourth pereopod and the dactyli of the third to fifth pereopod bearing accessory spinules arranged in more than one row.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C350AEC0FFD56710FF7272573CCAFD1D" pageId="11" pageNumber="26" type="etymology">
|
||
<paragraph id="8BF5FD4BFFD56710FF7272573CCAFD1D" blockId="11.[151,1436,152,663]" pageId="11" pageNumber="26">
|
||
<emphasis id="B93E2159FFD56710FF7272573F1EFDFB" bold="true" box="[198,339,599,625]" pageId="11" pageNumber="26">Etymology.</emphasis>
|
||
From the generic name
|
||
<taxonomicName id="4C4A86C8FFD56710FDCF72583D4FFDFB" box="[635,770,600,625]" class="Malacostraca" family="Alvinocarididae" genus="Alvinocaris" kingdom="Animalia" order="Decapoda" pageId="11" pageNumber="26" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B93E2159FFD56710FDCF72583D4FFDFB" box="[635,770,600,625]" italics="true" pageId="11" pageNumber="26">Alvinocaris</emphasis>
|
||
</taxonomicName>
|
||
and the suffix -ides (Greek, son of), in reference to the superficial resemblance of the two genera.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |