240 lines
30 KiB
XML
240 lines
30 KiB
XML
<document id="5C43E55650CAE27DAE10937E5E7F9D69" ID-CLB-Dataset="36873" ID-DOI="10.11646/zootaxa.3786.1.1" ID-GBIF-Dataset="62405bbe-fa14-4e05-a780-3edbbc367312" ID-ISSN="1175-5326" ID-Zenodo-Dep="285834" ID-ZooBank="2BB3C36D-3273-4DB4-9303-D1180571BCCF" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460407855801" checkinUser="plazi" docAuthor="Malyutina, Marina V. & Brandt, Angelika" docDate="2014" docId="03CBFA526F5E4830FF0DD0B2FCB8F99D" docLanguage="en" docName="zt03786p043.pdf" docOrigin="Zootaxa 3786 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Tytthocope Wilson & Hessler 1981" docType="treatment" docVersion="8" lastPageNumber="4" masterDocId="FFF2822A6F5C4833FF9AD262FFD0FFCD" masterDocTitle="New species of the deep-sea munnopsid genus Tytthocope (Crustacea, Isopoda, Asellota) from the South Atlantic and the Southern Ocean" masterLastPageNumber="43" masterPageNumber="1" pageNumber="3" updateTime="1698300037909" updateUser="ExternalLinkService">
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<mods:titleInfo id="B0BCBE63B388B5D72F470F55F3499051">
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<mods:title id="B5F036EEFE1DDA72CAA904DF0B710297">New species of the deep-sea munnopsid genus Tytthocope (Crustacea, Isopoda, Asellota) from the South Atlantic and the Southern Ocean</mods:title>
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<mods:namePart id="0F05F10387D2E0A9BA60F2CD813E28E8">Malyutina, Marina V.</mods:namePart>
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<mods:namePart id="8A709B89845D9EF0833C170CA3DFC78F">Brandt, Angelika</mods:namePart>
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<mods:title id="7BC8C2E2164E94422C49EBDA31D640A7">Zootaxa</mods:title>
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<mods:date id="EAE7F5FD9F6EF426A4C7C1D4953086E2">2014</mods:date>
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<mods:detail id="A5BF5DDA97DFBD57024D0474A6B0E1ED" type="volume">
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<mods:number id="EA4323C2D2D7F972B1291BB59562E289">3786</mods:number>
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<mods:identifier id="7D17CC32A3ABD9DA5DCB31AA13BD1FFB" type="CLB-Dataset">36873</mods:identifier>
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<mods:identifier id="11C2CE9AD52FDFBADDAC9296D411EFD9" type="DOI">10.11646/zootaxa.3786.1.1</mods:identifier>
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<treatment id="03CBFA526F5E4830FF0DD0B2FCB8F99D" ID-DOI="http://doi.org/10.5281/zenodo.5696621" ID-GBIF-Taxon="127667537" ID-Zenodo-Dep="5696621" LSID="urn:lsid:plazi:treatment:03CBFA526F5E4830FF0DD0B2FCB8F99D" httpUri="http://treatment.plazi.org/id/03CBFA526F5E4830FF0DD0B2FCB8F99D" lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3">
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<subSubSection id="C37818CF6F5E4831FF0DD0B2FD95FD27" box="[151,581,720,746]" pageId="2" pageNumber="3" type="nomenclature">
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<paragraph id="8BDD4B446F5E4831FF0DD0B2FD95FD27" blockId="2.[151,581,720,746]" box="[151,581,720,746]" pageId="2" pageNumber="3">
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<heading id="D095FC286F5E4831FF0DD0B2FD95FD27" bold="true" box="[151,581,720,746]" fontSize="11" level="1" pageId="2" pageNumber="3" reason="1">
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<taxonomicName id="4C6230C76F5E4831FF0DD0B2FD95FD27" ID-CoL="7Q5NJ" authority="Wilson & Hessler, 1981" authorityName="Wilson & Hessler" authorityYear="1981" box="[151,581,720,746]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="2" pageNumber="3" phylum="Arthropoda" rank="genus">
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<emphasis id="B91697566F5E4831FF0DD0B2FD95FD27" bold="true" box="[151,581,720,746]" pageId="2" pageNumber="3">
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<emphasis id="B91697566F5E4831FF0DD0B2FECAFD27" bold="true" box="[151,282,720,746]" italics="true" pageId="2" pageNumber="3">Tytthocope</emphasis>
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<bibRefCitation id="EFF336B56F5E4831FEB9D0B2FD95FD27" author="Wilson" box="[291,581,720,746]" pageId="2" pageNumber="3" refString="Wilson, G. D. & Hessler, R. R. (1981) A revision of the genus Eurycope (Isopoda, Asellota) with descriptions of three new genera. Journal of Crustacean Biology, 1 (3), 401 - 423." type="journal article" year="1981">Wilson & Hessler, 1981</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C37818CF6F5E4831FF0DD174FC6FFCE1" box="[151,959,790,812]" pageId="2" pageNumber="3" type="reference_group">
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<paragraph id="8BDD4B446F5E4831FF0DD174FC6FFCE1" blockId="2.[151,959,790,812]" box="[151,959,790,812]" pageId="2" pageNumber="3">
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<treatmentCitationGroup id="AB726C6A6F5E4831FF0DD174FC6FFCE1" box="[151,959,790,812]" pageId="2" pageNumber="3">
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<taxonomicName id="4C6230C76F5E4831FF0DD174FDE2FCE1" ID-CoL="7Q5NJ" authority="Wilson & Hessler, 1981: 410" authorityName="Wilson & Hessler" authorityPageNumber="410" authorityYear="1981" box="[151,562,790,812]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="2" pageNumber="3" phylum="Arthropoda" rank="genus">
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<emphasis id="B91697566F5E4831FF0DD174FED6FCE1" box="[151,262,790,812]" italics="true" pageId="2" pageNumber="3">Tytthocope</emphasis>
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<treatmentCitation id="0AC36D556F5E4831FE96D174FDE2FCE1" author="Wilson" box="[268,562,790,812]" page="410" pageId="2" pageNumber="3" year="1981">
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<bibRefCitation id="EFF336B56F5E4831FE96D174FDD2FCE1" author="Wilson" box="[268,514,790,812]" pageId="2" pageNumber="3" refString="Wilson, G. D. & Hessler, R. R. (1981) A revision of the genus Eurycope (Isopoda, Asellota) with descriptions of three new genera. Journal of Crustacean Biology, 1 (3), 401 - 423." type="journal article" year="1981">Wilson & Hessler, 1981</bibRefCitation>
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: 410
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</treatmentCitation>
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</taxonomicName>
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–412 (diagnosis),
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<treatmentCitation id="0AC36D556F5E4831FD7DD174FC6BFCE1" author="Kussakin" box="[743,955,790,812]" page="125" pageId="2" pageNumber="3" year="2003">
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<bibRefCitation id="EFF336B56F5E4831FD7DD174FC58FCE1" author="Kussakin" box="[743,904,790,812]" pageId="2" pageNumber="3" refString="Kussakin, O. G. (2003) Marine and brackish-water Isopoda of the cold and temperate waters of the Northern Hemisphere. III. Suborder Asellota. Part 3. Family Munnopsidae. (Opredeliteli po faune, izdavaemie Zoologicheskim Institutom Rossiyskoy Academii Nauk). St. - Petersburg, Nauka, 381 pp. [in Russian]" type="book" year="2003">Kussakin, 2003</bibRefCitation>
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: 125
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</treatmentCitation>
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.
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</treatmentCitationGroup>
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</paragraph>
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</subSubSection>
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<subSubSection id="C37818CF6F5E4831FF0DD13BFB25FB17" pageId="2" pageNumber="3" type="diagnosis">
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<paragraph id="8BDD4B446F5E4831FF0DD13BFB25FB17" blockId="2.[151,1436,857,2034]" pageId="2" pageNumber="3">
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<emphasis id="B91697566F5E4831FF0DD13BFEDAFCBF" bold="true" box="[151,266,857,882]" pageId="2" pageNumber="3">Diagnosis</emphasis>
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(Revised after
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<bibRefCitation id="EFF336B56F5E4831FE21D13BFD1AFCBF" author="Wilson" box="[443,714,857,882]" pageId="2" pageNumber="3" refString="Wilson, G. D. & Hessler, R. R. (1981) A revision of the genus Eurycope (Isopoda, Asellota) with descriptions of three new genera. Journal of Crustacean Biology, 1 (3), 401 - 423." type="journal article" year="1981">Wilson & Hessler 1981</bibRefCitation>
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). Cephalic rostrum broader and longer than antennula article 1, antennula article 1 without distomedial lobe. Natasomal pereonites free, pereonite 6 longest medially, pereonite 7 shortest, subequal to ambulosomal pereonites in length. Posterior of pereonite 5 tergum with pair of rounded elevations with angular keel. Venter of natasomal pereonites protruded medially, ventral protrusion of pereonite 6 largest. Pleotelson inflated, anus separated from pleopodal cavity by weak preanal ridge. Opercular pleopods in both sexes inflated, covering anus. Mandibular palp slender, shorter than mandibular body (about 0.8–0.9 length). Maxilliped palp article 2 with long acute distolateral projection; article 3 distomedial margin rectangular projected distally; article 4 distomedial lobe well produced; epipod elongate, distal margin narrow, acute. Male pleopod 1 gradually tapering distally, distal lobes not well separated from each other. Male pleopod 2 stylet length about half protopod length. Pleopods 3–5 volumetric, pleopod 5 largest, encapsulating pleopod 4. Uropod tiny, near 0.1 pleotelson length, endopod about twice as long as protopod, exopod subequal to protopod in length.
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</paragraph>
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</subSubSection>
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<subSubSection id="C37818CF6F5E4830FF5DD687FB34FD65" lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3" type="description">
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<paragraph id="8BDD4B446F5E4830FF5DD687FB34FD65" blockId="2.[151,1436,857,2034]" lastBlockId="3.[151,1437,151,1616]" lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3">
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<emphasis id="B91697566F5E4831FF5DD687FE89FB33" bold="true" box="[199,345,1253,1278]" pageId="2" pageNumber="3">Description.</emphasis>
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<emphasis id="B91697566F5E4831FEF9D687FDDBFB33" box="[355,523,1253,1278]" italics="true" pageId="2" pageNumber="3">Cephalothorax</emphasis>
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with broad rostrum tapering slightly distally into sloping broad frons, rostrum broader and longer than antennula article 1, labrum about twice as long and much narrower than clypeus.
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<emphasis id="B91697566F5E4831FF0DD74FFEDAFA8B" box="[151,266,1325,1350]" italics="true" pageId="2" pageNumber="3">Antennula</emphasis>
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of male visibly more stout than of female. Antennula article 1 tapering distally, without distomedial lobe.
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<emphasis id="B91697566F5E4831FF4CD730FE89FAA7" box="[214,345,1362,1386]" italics="true" pageId="2" pageNumber="3">Pereonite 1</emphasis>
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subequal to cephalothorax in length behind antennula insertion,
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<emphasis id="B91697566F5E4831FBA1D730FB31FAA7" box="[1083,1249,1362,1386]" italics="true" pageId="2" pageNumber="3">pereonites 2–4</emphasis>
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slightly broader than pereonite 1, laterally almost twice as long as pereonite 1.
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<emphasis id="B91697566F5E4831FCC6D714FC0DFA40" box="[860,989,1398,1421]" italics="true" pageId="2" pageNumber="3">Pereonite 5</emphasis>
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tergum has broadly rounded elevations with an angular keel in middle of each diametric half of the segment anterior to pereonite 6; pereonites 5 and 6 lateral length subequal,
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<emphasis id="B91697566F5E4831FE3AD7DCFDCDFA1B" box="[416,541,1469,1494]" italics="true" pageId="2" pageNumber="3">pereonite 6</emphasis>
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longest medially,
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<emphasis id="B91697566F5E4831FD73D7DCFCB6FA18" box="[745,870,1470,1493]" italics="true" pageId="2" pageNumber="3">pereonite 7</emphasis>
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shortest, subequal to anterior pereonites. Venter of natasomal pereonites protruded medially, pereonite 6 with largest ventral protrusion.
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<emphasis id="B91697566F5E4831FBCED783FB1AFA37" box="[1108,1226,1505,1530]" italics="true" pageId="2" pageNumber="3">Pleotelson</emphasis>
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about one third of body length, inflated, posterolateral margin slightly curved ventrally with flexion for uropod insertion, anus separated from pleopodal cavity by weakly pronounced preanal ridge.
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<emphasis id="B91697566F5E4831FC2FD44BFB46F98F" box="[949,1174,1577,1602]" italics="true" pageId="2" pageNumber="3">Opercular pleopods</emphasis>
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in both sexes covering anus, almost as long as pleotelson, ventrally inflated to same degree as pleotelson dorsally.
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<emphasis id="B91697566F5E4831FB42D42FFA4CF9AB" box="[1240,1436,1613,1638]" italics="true" pageId="2" pageNumber="3">Mandibular palp</emphasis>
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slender, length 0.8 mandibular body length, distal article elongate, reduced; molar tapering to distal spinose margin, condyle shorter than molar.
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<emphasis id="B91697566F5E4831FE43D4F7FD82F963" box="[473,594,1685,1710]" italics="true" pageId="2" pageNumber="3">Maxilliped</emphasis>
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palp article 1 with small acute distolateral projection, article 2 with long acute distolateral projection; article 3 distomedial margin projected distally, rectangular; article 4 distomedial lobe well produced; epipod elongate, subequal to basis in length, of roughly rhomboid shape, distal margin narrowly peaked.
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<emphasis id="B91697566F5E4831FF6CD563FEA8F8D7" box="[246,376,1793,1818]" italics="true" pageId="2" pageNumber="3">Pereopod 1</emphasis>
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smallest, less than body length (0.55–0.8), slender, with scattered small simple setae, carpus broadest proximally, subequal in length to propodus and dactylus together.
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<emphasis id="B91697566F5E4831FC6BD547FB4AF8F3" box="[1009,1178,1829,1854]" italics="true" pageId="2" pageNumber="3">Pereopods 2–4</emphasis>
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increase in elongation from pereopod 2 to 4, pereopod 2 subequal to body length; pereopod 4 about twice as long as body. Bases of pereopods 1–4 of similar length, basis 1 narrowest, with sparse simple setae; bases 2–4 with a few dorsal broom setae. Ischii with several simple setae; meri with 1 distodorsal UB seta and 1 distoventral UB seta; carpi with distodorsal set of 1 broom and a few long whip setae; propodus of pereopod 2 broadest, with long UB distoventral seta and dorsal broom seta subdistally; dactylus slender, tapering to slim acute claws.
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<emphasis id="B91697566F5E4831FBE1D5BBFAF5F83C" box="[1147,1317,2009,2034]" italics="true" pageId="2" pageNumber="3">Pereopods 5–7</emphasis>
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similar in shape, pereopod 6 slightly longer than pereopod 5, pereopod 7 length about 0.6 pereopod 6 length, all articles proportionally decreasing in size. Carpi almost semicircular: dorsal margin rounded, expanded and ventral margin nearly straight, slightly expanded, distodorsal margin with 1 broom seta. Propodi with more expanded ventral margin, but less expended dorsal margin, distodorsal margin with 1 long stout UB seta and 1 broom seta, distoventral margin with 1 short UB seta. Dactyli lanceolate, dorsal and distoventral margins with fringe of setulae, 2 small distal setae inbetween.
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<emphasis id="B91697566F5F4830FE6AD32EFD4FFEA9" box="[496,671,332,357]" italics="true" pageId="3" pageNumber="4">Male pleopod 1</emphasis>
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gradually tapering distally, distal lobes not well separated from each other.
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<emphasis id="B91697566F5F4830FF44D30DFE41FE45" box="[222,401,367,392]" italics="true" pageId="3" pageNumber="4">Male pleopod 2</emphasis>
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protopod semicircular, stylet length about half of protopod length; exopod small, inserting close to endopod insertion.
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<emphasis id="B91697566F5F4830FE48D3F6FD4FFE61" box="[466,671,404,429]" italics="true" pageId="3" pageNumber="4">Female pleopod 2</emphasis>
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ovoid in ventral view and conical in lateral view, reaching apex of pleotelson.
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<emphasis id="B91697566F5F4830FE82D3D5FE61FE02" box="[280,433,439,464]" italics="true" pageId="3" pageNumber="4">Pleopods 3–5</emphasis>
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volumetric, pleopod 5 largest, embracing pleopod 4.
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<emphasis id="B91697566F5F4830FB9DD3D5FBAAFE1D" box="[1031,1146,439,464]" italics="true" pageId="3" pageNumber="4">Pleopod 3</emphasis>
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endopod with three distal plumose setae located on protruded medial half of distal margin, setae length about half of endopod length; exopod subequal in length and 0.25–0.3 width of endopod, distal article separated, length about half of proximal article length, with 1 or 2 distal plumose setae, subequal to endopod setae in length.
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<emphasis id="B91697566F5F4830FB82D046FB5CFDF1" box="[1048,1164,548,573]" italics="true" pageId="3" pageNumber="4">Pleopod 4</emphasis>
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exopod slightly shorter than endopod, width 0.5 endopod width, with one distal plumose seta subequal in length to pleopod 3 setae.
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<emphasis id="B91697566F5F4830FF0DD00EFF3DFD48" box="[151,237,620,645]" italics="true" pageId="3" pageNumber="4">Uropod</emphasis>
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near 0.1 pleotelson length. Protopod slightly broader than long, broadened distally; endopod about twice as long as protopod; exopod subequal to protopod in length, width about one third of endopod width.
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</paragraph>
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</subSubSection>
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<subSubSection id="C37818CF6F5F4830FF5DD0D6FCB8F99D" pageId="3" pageNumber="4" type="discussion">
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<paragraph id="8BDD4B446F5F4830FF5DD0D6FCB8F99D" blockId="3.[151,1437,151,1616]" pageId="3" pageNumber="4">
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<emphasis id="B91697566F5F4830FF5DD0D6FEEBFD00" bold="true" box="[199,315,692,717]" pageId="3" pageNumber="4">Remarks.</emphasis>
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With regard to the small size, the general habitus, the large (broad and long) rostrum and the antennula article 1 without a distomedial lobe
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<taxonomicName id="4C6230C76F5F4830FD33D0B5FCF3FD3D" box="[681,803,727,752]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
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<emphasis id="B91697566F5F4830FD33D0B5FCF3FD3D" box="[681,803,727,752]" italics="true" pageId="3" pageNumber="4">Tytthocope</emphasis>
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</taxonomicName>
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resembles
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<emphasis id="B91697566F5F4830FC3FD0BBFB7DFD3D" box="[933,1197,727,752]" italics="true" pageId="3" pageNumber="4">
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<taxonomicName id="4C6230C76F5F4830FC3FD0BBFBF7FD3D" box="[933,1063,729,752]" class="Malacostraca" family="Munnopsidae" genus="Baeonectes" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Baeonectes</taxonomicName>
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,
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<taxonomicName id="4C6230C76F5F4830FBAED0B5FB7DFD3D" box="[1076,1197,727,752]" class="Malacostraca" family="Munnopsidae" genus="Belonectes" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Belonectes</taxonomicName>
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||
</emphasis>
|
||
and some species of
|
||
<emphasis id="B91697566F5F4830FF0DD09FFEF6FCD9" box="[151,294,765,788]" italics="true" pageId="3" pageNumber="4">
|
||
<taxonomicName id="4C6230C76F5F4830FF0DD09FFEF2FCD9" box="[151,290,765,788]" class="Malacostraca" family="Munnopsidae" genus="Disconectes" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Disconectes</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
However, it differs from these similarly small eurycopines by the separated natasomal pereonites, the short pereonite 7 and the inflated pleotelson. Species of the three genera mentioned have fused pereonites 5 and 6, a pereonite 7 which is comparable to pereonites 5 and
|
||
<quantity id="4C9AE6A16F5F4830FD69D126FCCEFC90" box="[755,798,836,861]" metricMagnitude="-1" metricUnit="m" metricValue="1.524" pageId="3" pageNumber="4" unit="in" value="6.0">6 in</quantity>
|
||
length and a somewhat flattened pleotelsoon.
|
||
<taxonomicName id="4C6230C76F5F4830FAB8D126FA4CFC90" box="[1314,1436,836,861]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FAB8D126FA4CFC90" box="[1314,1436,836,861]" italics="true" pageId="3" pageNumber="4">Tytthocope</emphasis>
|
||
</taxonomicName>
|
||
is the only genus of the subfamily with a greatly reduced pereonite 7. This character of
|
||
<taxonomicName id="4C6230C76F5F4830FBE2D105FB23FC4D" box="[1144,1267,871,896]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FBE2D105FB23FC4D" box="[1144,1267,871,896]" italics="true" pageId="3" pageNumber="4">Tytthocope</emphasis>
|
||
</taxonomicName>
|
||
resembles that of the genus
|
||
<emphasis id="B91697566F5F4830FEA8D1EFFE62FC69" box="[306,434,909,932]" italics="true" pageId="3" pageNumber="4">
|
||
<taxonomicName id="4C6230C76F5F4830FEA8D1EFFE7EFC69" box="[306,430,909,932]" class="Malacostraca" family="Munnopsidae" genus="Coperonus" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Coperonus</taxonomicName>
|
||
,
|
||
</emphasis>
|
||
a member of the subfamily
|
||
<taxonomicName id="4C6230C76F5F4830FC9FD1EEFB81FC68" authority="Tattersall, 1905" authorityName="Tattersall" authorityYear="1905" box="[773,1105,908,933]" class="Malacostraca" family="Munnopsidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="subFamily" subFamily="Lipomerinae">Lipomerinae Tattersall, 1905</taxonomicName>
|
||
which is characterized by a reduced or absent pereonite 7. The pereopod 7 of
|
||
<taxonomicName id="4C6230C76F5F4830FC9ED1CDFCAFFC05" box="[772,895,943,968]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FC9ED1CDFCAFFC05" box="[772,895,943,968]" italics="true" pageId="3" pageNumber="4">Tytthocope</emphasis>
|
||
</taxonomicName>
|
||
is reduced only in size like in
|
||
<emphasis id="B91697566F5F4830FA97D1D3FEC7FC21" italics="true" pageId="3" pageNumber="4">
|
||
<taxonomicName id="4C6230C76F5F4830FA97D1D3FA47FC05" box="[1293,1431,945,968]" class="Malacostraca" family="Munnopsidae" genus="Disconectes" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Disconectes</taxonomicName>
|
||
,
|
||
<taxonomicName id="4C6230C76F5F4830FF0DD1B7FEC7FC21" box="[151,279,981,1004]" class="Malacostraca" family="Munnopsidae" genus="Baeonectes" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Baeonectes</taxonomicName>
|
||
</emphasis>
|
||
and
|
||
<taxonomicName id="4C6230C76F5F4830FED6D1B6FE15FC20" box="[332,453,980,1005]" class="Malacostraca" family="Munnopsidae" genus="Belonectes" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FED6D1B6FE15FC20" box="[332,453,980,1005]" italics="true" pageId="3" pageNumber="4">Belonectes</emphasis>
|
||
</taxonomicName>
|
||
(to a larger degree), but not in swimming morphology as in
|
||
<emphasis id="B91697566F5F4830FBFCD1B7FAB8FC20" box="[1126,1384,980,1005]" italics="true" pageId="3" pageNumber="4">
|
||
<taxonomicName id="4C6230C76F5F4830FBFCD1B7FB33FC21" box="[1126,1251,981,1004]" class="Malacostraca" family="Munnopsidae" genus="Coperonus" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Coperonus</taxonomicName>
|
||
.
|
||
<taxonomicName id="4C6230C76F5F4830FB74D1B6FAB8FC20" box="[1262,1384,980,1005]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">Tytthocope</taxonomicName>
|
||
</emphasis>
|
||
also shares with
|
||
<taxonomicName id="4C6230C76F5F4830FE84D19AFE48FBC2" box="[286,408,1016,1039]" class="Malacostraca" family="Munnopsidae" genus="Coperonus" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FE84D19AFE48FBC2" box="[286,408,1016,1039]" italics="true" pageId="3" pageNumber="4">Coperonus</emphasis>
|
||
</taxonomicName>
|
||
and some species of
|
||
<taxonomicName id="4C6230C76F5F4830FD13D19BFD25FBDD" box="[649,757,1017,1040]" class="Malacostraca" family="Munnopsidae" genus="Lionectes" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FD13D19BFD25FBDD" box="[649,757,1017,1040]" italics="true" pageId="3" pageNumber="4">Lionectes</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="4C6230C76F5F4830FCB6D195FB50FBDD" authority="(Lipomerinae)" baseAuthorityName="Lipomerinae" box="[812,1152,1015,1040]" class="Malacostraca" family="Munnopsidae" genus="Mimocopelates" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FCB6D195FC07FBDD" box="[812,983,1015,1040]" italics="true" pageId="3" pageNumber="4">Mimocopelates</emphasis>
|
||
(Lipomerinae)
|
||
</taxonomicName>
|
||
a special structure of the natasome tergum, the dorsal surface of pereonite
|
||
<quantity id="4C9AE6A16F5F4830FD59D67EFD3FFBF8" box="[707,751,1052,1077]" metricMagnitude="-1" metricUnit="m" metricValue="1.27" pageId="3" pageNumber="4" unit="in" value="5.0">5 in</quantity>
|
||
front of the suture with pereonite 6 has a pair of the broadly rounded elevations with an angular keel, therefore the suture between pereonites 5 and 6 looks compressed.
|
||
<bibRefCitation id="EFF336B56F5F4830FAD6D65DFE71FBB1" author="Wilson" pageId="3" pageNumber="4" refString="Wilson, G. D. & Hessler, R. R. (1981) A revision of the genus Eurycope (Isopoda, Asellota) with descriptions of three new genera. Journal of Crustacean Biology, 1 (3), 401 - 423." type="journal article" year="1981">Wilson & Hessler (1981: 411)</bibRefCitation>
|
||
already noted in their generic remarks that “highly convoluted branchial pleopods of
|
||
<taxonomicName id="4C6230C76F5F4830FF0DD6E5FE54FB6D" box="[151,388,1159,1184]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="species" species="megalura">
|
||
<emphasis id="B91697566F5F4830FF0DD6E5FE54FB6D" box="[151,388,1159,1184]" italics="true" pageId="3" pageNumber="4">Tytthocope megalura</emphasis>
|
||
</taxonomicName>
|
||
, are unusual among the genera of the
|
||
<taxonomicName id="4C6230C76F5F4830FCACD6E5FC17FB6D" box="[822,967,1159,1184]" class="Malacostraca" family="Munnopsidae" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="subFamily" subFamily="Eurycopinae">Eurycopinae</taxonomicName>
|
||
. This pleopod form may be characteristic of the genus. However, pleopods III–V are known in too few species.” Our study of the four other species of
|
||
<taxonomicName id="4C6230C76F5F4830FF0DD6ADFEC2FB25" box="[151,274,1231,1256]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FF0DD6ADFEC2FB25" box="[151,274,1231,1256]" italics="true" pageId="3" pageNumber="4">Tytthocope</emphasis>
|
||
</taxonomicName>
|
||
revealed the same structure of the pleopods that confirmed this assumption. We suggest that together with the size ratios of rostrum to antennula article 1 and pereonites 5–7 to pleotelson lengths, the ventral protrusion of pereonite 6 and the special characters of the pleopods, as well as those of the maxilliped may be distinguishing for the genus. Though all eurycopines have a somewhat expanded lateral margin of maxilliped palp article 2, only
|
||
<taxonomicName id="4C6230C76F5F4830FF0DD73DFEC2FAB5" box="[151,274,1375,1400]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FF0DD73DFEC2FAB5" box="[151,274,1375,1400]" italics="true" pageId="3" pageNumber="4">Tytthocope</emphasis>
|
||
</taxonomicName>
|
||
species have a projected acute distolateral margin on it. All studied species of
|
||
<taxonomicName id="4C6230C76F5F4830FB37D73DFAF7FAB5" box="[1197,1319,1375,1400]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FB37D73DFAF7FAB5" box="[1197,1319,1375,1400]" italics="true" pageId="3" pageNumber="4">Tytthocope</emphasis>
|
||
</taxonomicName>
|
||
possess a laterally expanded article 2 with the projected acute distolateral margin, an article 3 which is noticeably narrower than article 2, with produced rectangular distomedial margin, a relatively narrow distomedial lobe of article 4 (comparing with broad lobe in
|
||
<taxonomicName id="4C6230C76F5F4830FD80D7AEFD43FA28" box="[538,659,1484,1509]" class="Malacostraca" family="Munnopsidae" genus="Belonectes" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FD80D7AEFD43FA28" box="[538,659,1484,1509]" italics="true" pageId="3" pageNumber="4">Belonectes</emphasis>
|
||
</taxonomicName>
|
||
) and an elongate epipod. These characters (Fig. 31) are useful interspecific diagnostic characters. The five known species of
|
||
<taxonomicName id="4C6230C76F5F4830FCC3D78DFC04F9C5" box="[857,980,1519,1544]" class="Malacostraca" family="Munnopsidae" genus="Tytthocope" kingdom="Animalia" order="Isopoda" pageId="3" pageNumber="4" phylum="Arthropoda" rank="genus">
|
||
<emphasis id="B91697566F5F4830FCC3D78DFC04F9C5" box="[857,980,1519,1544]" italics="true" pageId="3" pageNumber="4">Tytthocope</emphasis>
|
||
</taxonomicName>
|
||
have been collected from depths of less than
|
||
<quantity id="4C9AE6A16F5F4830FF54D476FEF5F9E1" box="[206,293,1556,1581]" metricMagnitude="3" metricUnit="m" metricValue="1.4609999999999999" pageId="3" pageNumber="4" unit="m" value="1461.0">1461 m</quantity>
|
||
, therefore the records for the new species are the deepest (
|
||
<tableCitation id="C6E07EFF6F5F4830FC2AD476FBD4F9E1" box="[944,1028,1556,1581]" captionStart="TABLE 1" captionStartId="1.[151,239,1015,1038]" captionTargetBox="[159,1227,1066,1419]" captionTargetPageId="1" captionText="TABLE 1. List of Tytthocope species." httpUri="http://table.plazi.org/id/DF1D1BCC6F5D4832FF0DD195FDFDFBC3" pageId="3" pageNumber="4" tableUuid="DF1D1BCC6F5D4832FF0DD195FDFDFBC3">Table 1</tableCitation>
|
||
), though
|
||
<bibRefCitation id="EFF336B56F5F4830FBEBD476FA4CF9E1" author="Wilson" box="[1137,1436,1556,1581]" pageId="3" pageNumber="4" refString="Wilson, G. D. & Hessler, R. R. (1981) A revision of the genus Eurycope (Isopoda, Asellota) with descriptions of three new genera. Journal of Crustacean Biology, 1 (3), 401 - 423." type="journal article" year="1981">Wilson and Hessler (1981)</bibRefCitation>
|
||
mentioned three undescribed species from the Atlantic deep sea.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |