147 lines
20 KiB
XML
147 lines
20 KiB
XML
<document id="9278E4C369576FD33F64B75A202DC03C" ID-DOI="10.11646/zootaxa.3847.3.3" ID-GBIF-Dataset="78065eb6-8757-4d91-aa23-a7bc65ef0598" ID-ISSN="1175-5326" ID-Zenodo-Dep="251089" ID-ZooBank="A0F19014-2BC9-4368-84AC-D1038E514722" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1460878446251" checkinUser="plazi" docAuthor="Weigmann, Simon, Stehmann, Matthias F. W. & Thiel, Ralf" docDate="2014" docId="3E4787B9FFD7752EFF796ED3FE7EFC6E" docLanguage="en" docName="zt03847p387.pdf" docOrigin="Zootaxa 3847 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Rajella Stehmann 1970, subgen. nov." docType="treatment" docVersion="8" lastPageNumber="361" masterDocId="C27EFFC1FFD6752DFFEE6839FFD6FFCB" masterDocTitle="Rajella paucispinosa n. sp., a new deep-water skate (Elasmobranchii, Rajidae) from the western Indian Ocean off South Mozambique, and a revised generic diagnosis" masterLastPageNumber="387" masterPageNumber="359" pageNumber="360" updateTime="1698358172135" updateUser="plazi">
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<mods:title id="D6AE2E294371E12A9C689E27E5EA76F0">Rajella paucispinosa n. sp., a new deep-water skate (Elasmobranchii, Rajidae) from the western Indian Ocean off South Mozambique, and a revised generic diagnosis</mods:title>
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<mods:namePart id="02C52926406CC714022AF953582FBEA7">Weigmann, Simon</mods:namePart>
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<mods:namePart id="549A1C64AEB150A9E060286536E5D9D9">Stehmann, Matthias F. W.</mods:namePart>
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<mods:namePart id="99DFD6AE9DC3440E313EF48243F479E3">Thiel, Ralf</mods:namePart>
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<mods:title id="F2E31057761B17C491CAA837BE350DFF">Zootaxa</mods:title>
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<mods:date id="1B6E9FDD643FA599FFAB6712065F9B21">2014</mods:date>
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<mods:number id="5385F1AEA3B58B6F98774B10EA9DE61F">3847</mods:number>
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<treatment id="3E4787B9FFD7752EFF796ED3FE7EFC6E" ID-DOI="http://doi.org/10.5281/zenodo.5622000" ID-GBIF-Taxon="119585303" ID-Zenodo-Dep="5622000" LSID="urn:lsid:plazi:treatment:3E4787B9FFD7752EFF796ED3FE7EFC6E" httpUri="http://treatment.plazi.org/id/3E4787B9FFD7752EFF796ED3FE7EFC6E" lastPageId="3" lastPageNumber="361" pageId="1" pageNumber="360">
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<subSubSection id="FEF46524FFD7752CFF796ED3FDD1F859" pageId="1" pageNumber="360" type="nomenclature">
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<paragraph id="B65136AFFFD7752CFF796ED3FDD4F8C8" blockId="1.[151,514,1770,1795]" box="[151,514,1770,1795]" pageId="1" pageNumber="360">
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<heading id="ED1981C3FFD7752CFF796ED3FDD4F8C8" bold="true" box="[151,514,1770,1795]" fontSize="10" level="2" pageId="1" pageNumber="360" reason="2">
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<emphasis id="849AEABDFFD7752CFF796ED3FDD4F8C8" bold="true" box="[151,514,1770,1795]" pageId="1" pageNumber="360">
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Genus
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<taxonomicName id="71EE4D2CFFD7752CFF046ED3FDD4F8C8" ID-CoL="76V8" ID-ENA="117865" authority="Stehmann, 1970" authorityName="Stehmann" authorityYear="1970" box="[234,514,1770,1795]" class="Elasmobranchii" family="Rajidae" genus="Rajella" kingdom="Animalia" order="Rajiformes" pageId="1" pageNumber="360" phylum="Chordata" rank="genus">
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<emphasis id="849AEABDFFD7752CFF046ED3FEEBF8C8" bold="true" box="[234,317,1770,1795]" italics="true" pageId="1" pageNumber="360">Rajella</emphasis>
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<bibRefCitation id="D27F4B5EFFD7752CFEAA6ED3FDD4F8C8" author="Stehmann" box="[324,514,1770,1795]" pageId="1" pageNumber="360" refString="Stehmann, M. (1970) Vergleichend morphologische und anatomische Untersuchungen zur Neuordnung der Systematik der nordostatlantischen Rajidae (Chondrichthyes, Batoidei). Archiv fur Fischereiwissenschaft, 21 (2), 73 - 164." type="journal article" year="1970">Stehmann, 1970</bibRefCitation>
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</taxonomicName>
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</emphasis>
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</heading>
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</paragraph>
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<paragraph id="B65136AFFFD7752CFF796F0BFE33F8A4" blockId="1.[151,1436,1842,2011]" pageId="1" pageNumber="360">
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<emphasis id="849AEABDFFD7752CFF796F0BFCECF880" bold="true" box="[151,826,1842,1867]" pageId="1" pageNumber="360">
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Translation of the original diagnosis by
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<bibRefCitation id="D27F4B5EFFD7752CFD9F6F0BFCECF880" author="Stehmann" box="[625,826,1842,1867]" pageId="1" pageNumber="360" refString="Stehmann, M. (1970) Vergleichend morphologische und anatomische Untersuchungen zur Neuordnung der Systematik der nordostatlantischen Rajidae (Chondrichthyes, Batoidei). Archiv fur Fischereiwissenschaft, 21 (2), 73 - 164." type="journal article" year="1970">Stehmann (1970)</bibRefCitation>
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</emphasis>
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. I. Genus
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<taxonomicName id="71EE4D2CFFD7752CFF126F6EFE33F8A4" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" box="[252,485,1878,1903]" class="Elasmobranchii" family="Rajidae" genus="Raja" kingdom="Animalia" order="Rajiformes" pageId="1" pageNumber="360" phylum="Chordata" rank="genus">
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<emphasis id="849AEABDFFD7752CFF126F6EFEE7F8A5" box="[252,305,1879,1902]" italics="true" pageId="1" pageNumber="360">Raja</emphasis>
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<bibRefCitation id="D27F4B5EFFD7752CFED76F6FFE33F8A4" author="Linnaeus" box="[313,485,1878,1903]" pageId="1" pageNumber="360" refString="Linnaeus, C. (1758) Systema Naturae, Ed. X, 1. Stockholm, ii + 824 pp." type="book" year="1758">Linnaeus, 1758</bibRefCitation>
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</taxonomicName>
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</paragraph>
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<paragraph id="B65136AFFFD7752CFF796F43FDD1F859" blockId="1.[151,1436,1842,2011]" box="[151,519,1914,1939]" pageId="1" pageNumber="360">
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5. subgenus
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<taxonomicName id="71EE4D2CFFD7752CFECC6F42FEA5F858" box="[290,371,1915,1939]" class="Elasmobranchii" family="Rajidae" genus="Rajella" kingdom="Animalia" order="Rajiformes" pageId="1" pageNumber="360" phylum="Chordata" rank="genus" status="subgen. nov.">
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<emphasis id="849AEABDFFD7752CFECC6F42FEA5F858" box="[290,371,1915,1939]" italics="true" pageId="1" pageNumber="360">Rajella</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="9FA957C6FFD7752CFE946F43FDD1F859" box="[378,519,1914,1939]" pageId="1" pageNumber="360" rank="subGenus">subgen. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="FEF46524FFD7752EFF796FA6FE7EFC6E" lastPageId="3" lastPageNumber="362" pageId="1" pageNumber="360" type="materials_examined">
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<paragraph id="B65136AFFFD7752CFF796FA6FD85F87C" blockId="1.[151,1436,1842,2011]" box="[151,595,1950,1975]" pageId="1" pageNumber="360">
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<typeStatus id="6955880DFFD7752CFF796FA6FF19F87C" box="[151,207,1951,1975]" pageId="1" pageNumber="360">Type</typeStatus>
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species:
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<taxonomicName id="71EE4D2CFFD7752CFEDB6FA6FD99F87C" authority="Lutken, 1888" authorityName="Lutken" authorityYear="1888" box="[309,591,1950,1975]" class="Elasmobranchii" family="Rajidae" genus="Raja" kingdom="Animalia" order="Rajiformes" pageId="1" pageNumber="360" phylum="Chordata" rank="species" species="fyllae">
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<emphasis id="849AEABDFFD7752CFEDB6FA6FE79F87D" box="[309,431,1950,1974]" italics="true" pageId="1" pageNumber="360">Raja fyllae</emphasis>
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<bibRefCitation id="D27F4B5EFFD7752CFE586FA7FD99F87C" author="Lutken" box="[438,591,1950,1975]" pageId="1" pageNumber="360" refString="Lutken, C. F. (1888) Korte Bidrag til nordisk Ichthyographi. VI. En for Gronlandshavet ny Rokke-Art (Raja Fyllae n. sp. ad int.) m. m. Videnskabelige Meddelelser fra den naturhistoriske Forening i Kjobenhavn, 1 - 4, pl. 1." type="book chapter" year="1888">Lütken, 1888</bibRefCitation>
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</taxonomicName>
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.
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</paragraph>
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<paragraph id="B65136AFFFD7752FFF796FFBFDC9FD63" blockId="1.[151,1436,1842,2011]" lastBlockId="2.[151,1437,151,680]" lastPageId="2" lastPageNumber="361" pageId="1" pageNumber="360">
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Diagnosis: a subgenus of the genus
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<taxonomicName id="71EE4D2CFFD7752CFDDE6FFAFCCDF810" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" box="[560,795,1986,2011]" class="Elasmobranchii" family="Rajidae" genus="Raja" kingdom="Animalia" order="Rajiformes" pageId="1" pageNumber="360" phylum="Chordata" rank="genus">
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<emphasis id="849AEABDFFD7752CFDDE6FFAFDB3F811" box="[560,613,1987,2010]" italics="true" pageId="1" pageNumber="360">Raja</emphasis>
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<bibRefCitation id="D27F4B5EFFD7752CFD836FFBFCCDF810" author="Linnaeus" box="[621,795,1986,2011]" pageId="1" pageNumber="360" refString="Linnaeus, C. (1758) Systema Naturae, Ed. X, 1. Stockholm, ii + 824 pp." type="book" year="1758">Linnaeus, 1758</bibRefCitation>
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</taxonomicName>
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with the following characters: Clasper short and overall evenly slender; external pseudosiphon usually present; components slit, cleft, rhipidion, shield, sentinel and spike present; clasper skeleton with 4 dT-, 2 aT-cartilages and vT. Length of rostrum much shorter than that of neurocranium, nasal capsules remarkably large;
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<emphasis id="849AEABDFFD4752FFD2768D9FC00FF33" box="[713,982,224,248]" italics="true" pageId="2" pageNumber="361">regio orbito temporalis</emphasis>
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deeply concave. A small species with roundish disc; snout blunt, extremely short, snout angle 115°–156°. Anterior margin of disc strongly indented at level of spiracles in adult males. Tail length distinctly larger than disc length, distance between mid-vent and tail tip 1.3–1.6 times the distance between mid-vent and snout tip. Disc and tail dorsally set with spinules, thornlets and thorns; 1–3 pre-, 1–3 postorbital thorns, often an orbital ring of 5–9 thorns each side; 1–5 nuchal, 1–2 suprascapular, 1–3 scapular thorns, commonly a large triangle of thorns over these three regions; a median row of small thorns on back of trunk and tail in juveniles, along with several rows of irregularly set larger thorns from shoulder region to partly level of second dorsal fin; interdorsal thorns usually lacking; median row of thorns in semiadult and adult specimens with distinctly smaller thorns than those in parallel rows, or median thorns totally absent. Ventral side smooth. Dorsal ground color dark. Disc with pattern of irregular spots and dots. Ventral side predominantly white. Vtr: 25–29; Vprd: 64–77; pectoral radials: 63–68. Species in NE-Atlantic:
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<taxonomicName id="71EE4D2CFFD4752FFB226A71FADCFDAB" box="[1228,1290,584,608]" class="Elasmobranchii" family="Rajidae" genus="Raja" kingdom="Animalia" order="Rajiformes" pageId="2" pageNumber="361" phylum="Chordata" rank="species" species="fyllae">
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<emphasis id="849AEABDFFD4752FFB226A71FADCFDAB" box="[1228,1290,584,608]" italics="true" pageId="2" pageNumber="361">fyllae</emphasis>
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</taxonomicName>
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. Presumably affiliated or closely related species outside the NE-Atlantic:
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<emphasis id="849AEABDFFD4752FFC9E6A55FC3AFD4F" box="[880,1004,620,644]" italics="true" pageId="2" pageNumber="361">lentiginosa</emphasis>
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,
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<emphasis id="849AEABDFFD4752FFBEF6A55FB8AFD4F" box="[1025,1116,620,644]" italics="true" pageId="2" pageNumber="361">ocellata</emphasis>
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(W-Atlantic). Distribution: latitudinally amphi-North Atlantic.
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</paragraph>
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<caption id="E2916627FFD4752FFF796E46FC61F97F" httpUri="https://zenodo.org/record/251090/files/figure.png" pageId="2" pageNumber="361" targetBox="[164,1414,737,1631]" targetPageId="2">
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<paragraph id="B65136AFFFD4752FFF796E46FC61F97F" blockId="2.[151,1436,1663,1716]" pageId="2" pageNumber="361">
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<emphasis id="849AEABDFFD4752FFF796E46FEC5F95E" bold="true" box="[151,275,1663,1685]" pageId="2" pageNumber="361">FIGURE 1.</emphasis>
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Map of the southwestern Indian Ocean depicting the catch location of the holotype of
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<taxonomicName id="71EE4D2CFFD4752FFB686E46FA8DF95E" box="[1158,1371,1663,1685]" class="Elasmobranchii" family="Rajidae" genus="Rajella" kingdom="Animalia" order="Rajiformes" pageId="2" pageNumber="361" phylum="Chordata" rank="species" species="paucispinosa" status="sp. nov.">
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<emphasis id="849AEABDFFD4752FFB686E46FA8DF95E" box="[1158,1371,1663,1685]" italics="true" pageId="2" pageNumber="361">Rajella paucispinosa</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="9FA957C6FFD4752FFA8D6E46FA4AF95E" box="[1379,1436,1663,1685]" pageId="2" pageNumber="361" rank="species">
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<emphasis id="849AEABDFFD4752FFA8D6E46FA4AF95E" bold="true" box="[1379,1436,1663,1685]" pageId="2" pageNumber="361">n. sp.</emphasis>
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</taxonomicNameLabel>
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(white circle). Country abbreviation follows ISO 3166-1 (MZ = Mozambique).
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</paragraph>
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</caption>
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<paragraph id="B65136AFFFD4752EFF296EE2FE7EFC6E" blockId="2.[151,1437,1754,2032]" lastBlockId="3.[151,1437,151,933]" lastPageId="3" lastPageNumber="362" pageId="2" pageNumber="361">
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<emphasis id="849AEABDFFD4752FFF296EE2FCE2F93F" bold="true" box="[199,820,1754,1780]" pageId="2" pageNumber="361">
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Revised generic diagnosis of
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<taxonomicName id="71EE4D2CFFD4752FFDF26EE3FCE2F93F" authority="Stehmann, 1970" authorityName="Stehmann" authorityYear="1970" box="[540,820,1754,1780]" class="Elasmobranchii" family="Rajidae" genus="Rajella" kingdom="Animalia" order="Rajiformes" pageId="2" pageNumber="361" phylum="Chordata" rank="genus">
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<emphasis id="849AEABDFFD4752FFDF26EE3FDB9F938" bold="true" box="[540,623,1754,1779]" italics="true" pageId="2" pageNumber="361">Rajella</emphasis>
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<bibRefCitation id="D27F4B5EFFD4752FFD9B6EE2FCE2F93F" author="Stehmann" box="[629,820,1755,1780]" pageId="2" pageNumber="361" refString="Stehmann, M. (1970) Vergleichend morphologische und anatomische Untersuchungen zur Neuordnung der Systematik der nordostatlantischen Rajidae (Chondrichthyes, Batoidei). Archiv fur Fischereiwissenschaft, 21 (2), 73 - 164." type="journal article" year="1970">Stehmann, 1970</bibRefCitation>
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</taxonomicName>
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</emphasis>
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(based on 18 species known to date, including the new species described herein). A rajid skate genus whose members can be found almost worldwide on shelves and slopes in temperate and tropical latitudes. Species are small (total length (TL) to about
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<quantity id="71169B4AFFD4752FFB826F1AFB65F8F7" box="[1132,1203,1827,1852]" metricMagnitude="-1" metricUnit="m" metricValue="6.0" pageId="2" pageNumber="361" unit="cm" value="60.0">60 cm</quantity>
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) to moderately large (TL up to about
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<quantity id="71169B4AFFD4752FFEB86F71FE79F8AB" box="[342,431,1864,1888]" metricMagnitude="0" metricUnit="m" metricValue="1.3" pageId="2" pageNumber="361" unit="cm" value="130.0">130 cm</quantity>
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). Disc shape roundish with short, obtusely angled snout to subrhombic with moderately long, pointed snout. Tail solid and gradually tapering to tip. Tail distinctly longer than distance from snout tip to mid-vent in small species with roundish discs, but equal to or shorter in larger species with subrhombic discs. Bases of dorsal fins mostly confluent, otherwise interdorsal space very short. Postdorsal tail section very short. Sensory and mucus pores not black-marked. Upper sides of disc and tail usually largely covered with dermal denticles. Most species with more or less pronounced thorn pattern including thorns on snout, half rings on orbital rims, a triangular patch on nape-shoulder region, a median row from trunk to first dorsal fin (reduced with advancing age in some species), and usually at least two parallel rows of large thorns. Some small species with additional thorns scattered on pectoral fins, while in some larger species the thorn patterns on snout, orbital rims, and nape-shoulder region are reduced and parallel thorn rows are absent or shorter and consisting of smaller thorns. Interdorsal thorns present or absent. Dorsal and ventral ground color varies, partly depending on growth stage, from dark to plain whitish, may be uniformly colored or with different patterning, few species with plain dark ventral and lighter dorsal disc. Claspers of adult males rather short, hardly reaching half-length of tail, slender to more massive, with terminal region usually somewhat widened. External pseudosiphon lacking; occasionally a pseudosiphon-like groove present in dorsal semi-terminal dilatator muscle, but outer border of groove not supported by edge of dorsal terminal 1 cartilage. Components cleft, rhipidion, sentinel, shield, spike, and terminal bridge present; partially also dike, eperon, flag, pent, sentina, slit, and spur present. Contrary to the generally similar genus
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<taxonomicName id="71EE4D2CFFD5752EFED46A71FE7BFD94" box="[314,429,584,607]" class="Elasmobranchii" family="Rajidae" genus="Leucoraja" kingdom="Animalia" order="Rajiformes" pageId="3" pageNumber="362" phylum="Chordata" rank="genus">
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<emphasis id="849AEABDFFD5752EFED46A71FE7BFD94" box="[314,429,584,607]" italics="true" pageId="3" pageNumber="362">Leucoraja</emphasis>
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</taxonomicName>
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, the components promontory and roll are lacking. Additionally to axial and dorsal and ventral marginal cartilages, terminal clasper skeleton with 2–3 accessory terminal cartilages, 4–5 dorsal terminals, a terminal bridge, and a ventral terminal; dorsal terminal 2 without long, solid distal process. However, clasper features of some species are still unknown. Length of rostrum variable, cranial orbit contour from deeply concave to shallower trapezoid-shaped. Scapulocoracoid with one anterior fenestra without anterior bridge, one large postdorsal, and one large postventral fenestra. Pelvic girdle straight, posterior contour weakly concave, prepelvic processes massive and short. Upper jaw tooth rows: 26–70; trunk vertebrae (Vtr): 23–36; predorsal tail vertebrae (Vprd): 52–77; pectoral radials: 55–87. Due to the large interspecific variation in external characters, clasper features presently appear to be the most reliable generic characters. A list of all 18 valid species of
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<taxonomicName id="71EE4D2CFFD5752EFB146B51FA9DFC4B" box="[1274,1355,872,896]" class="Elasmobranchii" family="Rajidae" genus="Rajella" kingdom="Animalia" order="Rajiformes" pageId="3" pageNumber="362" phylum="Chordata" rank="genus">
|
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<emphasis id="849AEABDFFD5752EFB146B51FA9DFC4B" box="[1274,1355,872,896]" italics="true" pageId="3" pageNumber="362">Rajella</emphasis>
|
||
</taxonomicName>
|
||
can be found under Discussion.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
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</document> |