174 lines
19 KiB
XML
174 lines
19 KiB
XML
<document id="23C3152EA667B4BC4B1456DCFF318A6D" ID="10.11646/zootaxa.4139.3.2" ID-DOI="10.11646/zootaxa.4139.3.2" ID-GBIF-Dataset="51358935-98b0-4d89-a47f-e4341171e5b9" ID-ISSN="1175-5326" ID-Zenodo-Dep="262765" ID-ZooBank="DCF4220B-4A73-407C-837C-54DEAE29F435" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1469091585085" checkinUser="plazi" docAuthor="Last, Peter R., Naylor, Gavin J. P. & Manjaji-Matsumoto, B. Mabel" docDate="2016" docId="03A7CA1D8566145DE7C6FBFFFC2C0602" docLanguage="en" docName="zootaxa.4139.3.2.pdf" docOrigin="Zootaxa 4139 (3)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Telatrygon Last, Naylor & Manjaji-Matsumoto, 2016, gen. nov." docType="treatment" docUuid="83DA7BC5-C307-4CFD-AE46-B3A5E3601F33" docUuidSource="ZooBank" docVersion="9" lastPageNumber="357" masterDocId="FF9EB265856A1450E751FF83FFDE0766" masterDocTitle="A revised classification of the family Dasyatidae (Chondrichthyes: Myliobatiformes) based on new morphological and molecular insights" masterLastPageNumber="368" masterPageNumber="345" pageNumber="357" updateTime="1698365466156" updateUser="plazi">
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<mods:titleInfo id="6153641385E445D6067266952D4664DA">
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<mods:title id="43F33BA70023973EE3BD435F93442132">A revised classification of the family Dasyatidae (Chondrichthyes: Myliobatiformes) based on new morphological and molecular insights</mods:title>
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<mods:name id="5C04E778086FDE74C06B85DD70739B1C" type="personal">
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<mods:namePart id="7DF5D981D8AB92FC8AF1B27E579A5D27">Last, Peter R.</mods:namePart>
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<mods:namePart id="44BF2A8FFFFB9BD040C0D7FA0F4E7CD3">Naylor, Gavin J. P.</mods:namePart>
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<mods:namePart id="642082A8BF01AAC8A7647D15951473A6">Manjaji-Matsumoto, B. Mabel</mods:namePart>
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<mods:title id="F91715E913F7CAC953FF96B40A68F3E0">Zootaxa</mods:title>
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<mods:date id="79347E8F6FAAB570D3464927F4B70DEB">2016</mods:date>
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<mods:number id="1ECC3B2068F1CD4D1138FCF22CBD6D73">4139</mods:number>
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<treatment id="03A7CA1D8566145DE7C6FBFFFC2C0602" ID-DOI="http://doi.org/10.5281/zenodo.6085221" ID-GBIF-Taxon="123198553" ID-Zenodo-Dep="6085221" LSID="urn:lsid:zoobank.org:act:83DA7BC5-C307-4CFD-AE46-B3A5E3601F33" httpUri="http://treatment.plazi.org/id/03A7CA1D8566145DE7C6FBFFFC2C0602" lastPageId="13" lastPageNumber="357" pageId="12" pageNumber="357">
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<subSubSection id="C31428808566145CE7C6FBFFFE3A03F0" box="[151,484,1148,1174]" pageId="12" pageNumber="357" type="nomenclature">
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<paragraph id="8BB17B0B8566145CE7C6FBFFFE3A03F0" blockId="12.[151,484,1148,1174]" box="[151,484,1148,1174]" pageId="12" pageNumber="357">
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<heading id="D0F9CC678566145CE7C6FBFFFE3A03F0" bold="true" box="[151,484,1148,1174]" fontSize="11" level="1" pageId="12" pageNumber="357" reason="1">
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<emphasis id="B97AA7198566145CE7C6FBFFFE3A03F0" bold="true" box="[151,484,1148,1174]" pageId="12" pageNumber="357">
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Genus
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<taxonomicName id="4C0E00888566145CE7BCFBFFFEB003F0" box="[237,366,1148,1174]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="genus" status="gen. nov.">
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<emphasis id="B97AA7198566145CE7BCFBFFFEB003F0" bold="true" box="[237,366,1148,1174]" italics="true" pageId="12" pageNumber="357">Telatrygon</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A2491A628566145CE627FBFFFE3A03F0" box="[374,484,1148,1174]" pageId="12" pageNumber="357" 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="C31428808566145CE7C6FB40FD3D01E0" pageId="12" pageNumber="357" type="materials_examined">
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<paragraph id="8BB17B0B8566145CE7C6FB40FCE103BE" blockId="12.[151,831,1218,1240]" box="[151,831,1218,1240]" pageId="12" pageNumber="357">
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<typeStatus id="54B5C5A98566145CE7C6FB40FF1703BE" box="[151,201,1219,1240]" pageId="12" pageNumber="357">Type</typeStatus>
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species
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<taxonomicName id="4C0E00888566145CE64EFB40FD5203BE" authority="Muller & Henle, 1841" authorityName="Muller & Henle" authorityYear="1841" box="[287,652,1218,1240]" class="Elasmobranchii" family="Dasyatidae" genus="Trygon" higherTaxonomySource="CoL" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="species" species="zugei">
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<emphasis id="B97AA7198566145CE64EFB40FE7C03BE" box="[287,418,1219,1240]" italics="true" pageId="12" pageNumber="357">Trygon zugei</emphasis>
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Müller & Henle, 1841
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</taxonomicName>
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; newly proposed.
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</paragraph>
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<paragraph id="8BB17B0B8566145CE7C6FA87FD3D01E0" blockId="12.[151,1437,1284,2030]" pageId="12" pageNumber="357">
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<emphasis id="B97AA7198566145CE7C6FA87FED1027B" bold="true" box="[151,271,1284,1309]" pageId="12" pageNumber="357">Definition</emphasis>
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. Small to medium-sized dasyatids (adults typically to
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<quantity id="4CF6D6EE8566145CE42EFA85FC2F027B" box="[895,1009,1286,1310]" metricMagnitude="-1" metricUnit="m" metricValue="5.1" metricValueMax="7.3" metricValueMin="2.9" pageId="12" pageNumber="357" unit="cm" value="51.0" valueMax="73.0" valueMin="29.0">29–73 cm</quantity>
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DW) characterised by the following: strongly depressed, weakly rhombic to rhombic disc with pectoral-fin apex narrowly angular to broadly rounded; snout acutely angular and elongate (2.9–4+ times combined orbit and spiracle length); eye small to very small and sunken; nasal curtain typically narrowly skirt-shaped; mouth narrow and lacking oral papillae; tail rather long and filamentous distally (length 1.4–3 times DW), its base narrow to medium width; pelvic fins medium-sized, protruding slightly beyond disc; dorsal fold variably developed, from prominent to absent; ventral fold low with a short to long base; caudal sting close to tail base (distance from pectoral-fin insertion to caudal-sting base 2–2.5 times interspiracular width); skin smooth; no scapular thorns or denticle band; median thorns on nape in a row, usually separated from larger thorn-like denticles on tail; no other thorns or rarely denticles on tail; dorsal coloration plain; ventral surface white, disc margin usually dark edged; tail plain or darker dorsally than ventrally; marine,
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<collectingRegion id="49CAB5E98566145CE7A2F9EEFE8601E0" box="[243,344,1645,1670]" country="Papua New Guinea" name="Northern" pageId="12" pageNumber="357">Northern</collectingRegion>
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Indian Ocean and
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<collectingRegion id="49CAB5E98566145CE57AF9EDFD5801E3" box="[555,646,1646,1669]" country="Solomon Islands" name="Western" pageId="12" pageNumber="357">Western</collectingRegion>
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Pacific.
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</paragraph>
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</subSubSection>
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<subSubSection id="C31428808566145CE796F912FE100070" pageId="12" pageNumber="357" type="etymology">
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<paragraph id="8BB17B0B8566145CE796F912FB8E01A8" blockId="12.[151,1437,1284,2030]" pageId="12" pageNumber="357">
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<emphasis id="B97AA7198566145CE796F912FE9801CF" bold="true" box="[199,326,1681,1705]" pageId="12" pageNumber="357">Etymology</emphasis>
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. Combination of the Latin
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<emphasis id="B97AA7198566145CE5DDF912FD1401CC" box="[652,714,1681,1706]" italics="true" pageId="12" pageNumber="357">telum</emphasis>
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(javelin, spear, arrow, dart) and Greek
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<taxonomicName id="4C0E00888566145CE3CFF911FB3901CF" box="[1182,1255,1682,1705]" class="Elasmobranchii" family="Dasyatidae" genus="Trygon" higherTaxonomySource="CoL" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="362" phylum="Chordata" rank="genus">
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<emphasis id="B97AA7198566145CE3CFF911FB3901CF" box="[1182,1255,1682,1705]" italics="true" pageId="12" pageNumber="357">trygon</emphasis>
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</taxonomicName>
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(stingray) with reference to the long, narrowly pointed snout possessed by all members of the genus.
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</paragraph>
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<paragraph id="8BB17B0B8566145CE796F95AFE100070" blockId="12.[151,1437,1284,2030]" pageId="12" pageNumber="357">
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<emphasis id="B97AA7198566145CE796F95AFEC00194" bold="true" box="[199,286,1753,1778]" pageId="12" pageNumber="357">Species</emphasis>
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.
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<taxonomicName id="4C0E00888566145CE67CF959FD240194" authority="Nishida & Nakaya, 1988" authorityName="Nishida & Nakaya" authorityYear="1988" box="[301,762,1753,1778]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="species" species="acutirostra">
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<emphasis id="B97AA7198566145CE67CF959FE1B0197" box="[301,453,1754,1777]" italics="true" pageId="12" pageNumber="357">T. acutirostra</emphasis>
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(Nishida & Nakaya, 1988)
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</taxonomicName>
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,
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<taxonomicName id="4C0E00888566145CE456F959FBC50194" authority="Blyth, 1860" authorityName="Blyth" authorityYear="1860" box="[775,1051,1753,1778]" class="Elasmobranchii" family="Dasyatidae" genus="Trygon" higherTaxonomySource="CoL" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="species" species="crozieri">
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<emphasis id="B97AA7198566145CE456F959FCA90197" box="[775,887,1754,1777]" italics="true" pageId="12" pageNumber="357">T. crozieri</emphasis>
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(Blyth, 1860)
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</taxonomicName>
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,
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<taxonomicName id="4C0E00888566145CE376F959FA460194" authority="Muller & Henle, 1841" authorityName="Muller & Henle" authorityYear="1841" box="[1063,1432,1753,1778]" class="Elasmobranchii" family="Dasyatidae" genus="Trygon" higherTaxonomySource="CoL" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="species" species="zugei">
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<emphasis id="B97AA7198566145CE376F959FBA10197" box="[1063,1151,1754,1777]" italics="true" pageId="12" pageNumber="357">T. zugei</emphasis>
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(Müller & Henle, 1841)
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</taxonomicName>
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, and an undescribed species.
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</paragraph>
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</subSubSection>
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<subSubSection id="C31428808566145DE796F8A2FC2C0602" lastPageId="13" lastPageNumber="358" pageId="12" pageNumber="357" type="discussion">
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<paragraph id="8BB17B0B8566145DE796F8A2FC2C0602" blockId="12.[151,1437,1284,2030]" lastBlockId="13.[151,1436,151,357]" lastPageId="13" lastPageNumber="358" pageId="12" pageNumber="357">
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<emphasis id="B97AA7198566145CE796F8A2FEEA005F" bold="true" box="[199,308,1825,1849]" pageId="12" pageNumber="357">Remarks</emphasis>
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. Newly erected, morphologically conservative genus whose members were formerly assigned to
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<emphasis id="B97AA7198566145CE7C6F8C5FDD9003B" box="[151,519,1861,1886]" italics="true" pageId="12" pageNumber="357">
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<taxonomicName id="4C0E00888566145CE7C6F8C5FF23003B" box="[151,253,1862,1885]" class="Elasmobranchii" family="Dasyatidae" genus="Dasyatis" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="genus">Dasyatis</taxonomicName>
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.
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<taxonomicName id="4C0E00888566145CE658F8C6FDD9003B" box="[265,519,1861,1886]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="species" species="acutirostra">Telatrygon acutirostra</taxonomicName>
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</emphasis>
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resembles other species of
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<taxonomicName id="4C0E00888566145CE416F8C6FC610038" box="[839,959,1861,1886]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="genus" status="gen. nov.">
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<emphasis id="B97AA7198566145CE416F8C6FC610038" box="[839,959,1861,1886]" italics="true" pageId="12" pageNumber="357">Telatrygon</emphasis>
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</taxonomicName>
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in disc shape (apart from having a much longer snout and tail, smaller eyes, and less well-developed skin folds on the tail). It is otherwise similar in the states of most external characters used to define the dasyatid genera. However, based on phylogenetic analysis of NADH2 sequences (and unpublished analyses of whole mitochondrial genomes),
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<taxonomicName id="4C0E00888566145CE315F831FB0300AF" box="[1092,1245,1970,1993]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="species" species="acutirostra">
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<emphasis id="B97AA7198566145CE315F831FB0300AF" box="[1092,1245,1970,1993]" italics="true" pageId="12" pageNumber="357">T. acutirostra</emphasis>
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</taxonomicName>
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does not cluster with other species of
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<taxonomicName id="4C0E00888566145CE6C8F856FDCF0088" box="[409,529,2005,2030]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="12" pageNumber="357" phylum="Chordata" rank="genus" status="gen. nov.">
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<emphasis id="B97AA7198566145CE6C8F856FDCF0088" box="[409,529,2005,2030]" italics="true" pageId="12" pageNumber="357">Telatrygon</emphasis>
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</taxonomicName>
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(
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<figureCitation id="1335678E8566145CE577F856FDB20088" box="[550,620,2005,2030]" captionStart="FIGURE 1" captionStartId="3.[151,250,1867,1889]" captionText="FIGURE 1. Dasyatidae (subfamily Dasyatinae). Topology and branch lengths resulting from a constrained Maximum Likelihood analysis of aligned NADH 2 sequence data using the GTR + I + G model. Topological constraints were derived from an unpublished ML analysis of whole mitochondrial genomes for a representative subset of the taxa (unpublished). Members of the Neotrygoninae were used as outgroups. Names shown at branch tips are those currently in use. Revised generic names proposed are shown to the right." pageId="12" pageNumber="357">Fig. 1</figureCitation>
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), so its placement in the group is provisional pending more detailed anatomical studies.
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<taxonomicName id="4C0E00888567145DE62DFF14FE2B07D6" box="[380,501,151,176]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="13" pageNumber="357" phylum="Chordata" rank="genus" status="gen. nov.">
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<emphasis id="B97AA7198567145DE62DFF14FE2B07D6" box="[380,501,151,176]" italics="true" pageId="13" pageNumber="358">Telatrygon</emphasis>
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</taxonomicName>
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is represented by an undescribed species in the
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<collectingRegion id="49CAB5E98567145DE37FFF1BFB5707C9" box="[1070,1161,152,175]" country="Solomon Islands" name="Western" pageId="13" pageNumber="358">Western</collectingRegion>
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Pacific (Last, White & Naylor, submitted), and a cognate occurring in the northern Indian Ocean (identified by molecular data, GN) appears to be conspecific with
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<taxonomicName id="4C0E00888567145DE6A1FF62FCF5079E" authority="Blyth, 1860" authorityName="Blyth" authorityYear="1860" box="[496,811,223,248]" class="Elasmobranchii" family="Dasyatidae" genus="Trygon" higherTaxonomySource="CoL" kingdom="Animalia" order="Myliobatiformes" pageId="13" pageNumber="358" phylum="Chordata" rank="species" species="crozieri">
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<emphasis id="B97AA7198567145DE6A1FF62FD42079E" box="[496,668,225,248]" italics="true" pageId="13" pageNumber="358">Trygon crozieri</emphasis>
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Blyth, 1860
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</taxonomicName>
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; placed in synonymy with
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<taxonomicName id="4C0E00888567145DE307FF62FB66079E" box="[1110,1208,225,248]" class="Elasmobranchii" family="Dasyatidae" genus="Dasyatis" kingdom="Animalia" order="Myliobatiformes" pageId="13" pageNumber="358" phylum="Chordata" rank="genus">
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<emphasis id="B97AA7198567145DE307FF62FB66079E" box="[1110,1208,225,248]" italics="true" pageId="13" pageNumber="358">Dasyatis</emphasis>
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</taxonomicName>
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(=
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<taxonomicName id="4C0E00888567145DE389FF5CFA8E079E" box="[1240,1360,223,248]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="13" pageNumber="357" phylum="Chordata" rank="genus" status="gen. nov.">
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<emphasis id="B97AA7198567145DE389FF5CFA8E079E" box="[1240,1360,223,248]" italics="true" pageId="13" pageNumber="358">Telatrygon</emphasis>
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</taxonomicName>
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)
|
||
<taxonomicName id="4C0E00888567145DE230FF62FA42079E" box="[1377,1436,225,248]" class="Elasmobranchii" family="Dasyatidae" genus="Trygon" higherTaxonomySource="CoL" kingdom="Animalia" order="Myliobatiformes" pageId="13" pageNumber="358" phylum="Chordata" rank="species" species="zugei">
|
||
<emphasis id="B97AA7198567145DE230FF62FA42079E" box="[1377,1436,225,248]" italics="true" pageId="13" pageNumber="358">zugei</emphasis>
|
||
</taxonomicName>
|
||
by Nishida & Nakaya (1988, 1990). Although Blyth’s description is brief, his species is undoubtedly a
|
||
<taxonomicName id="4C0E00888567145DE24DFE87FA4A067B" box="[1308,1428,260,285]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="13" pageNumber="357" phylum="Chordata" rank="genus" status="gen. nov.">
|
||
<emphasis id="B97AA7198567145DE24DFE87FA4A067B" box="[1308,1428,260,285]" italics="true" pageId="13" pageNumber="358">Telatrygon</emphasis>
|
||
</taxonomicName>
|
||
, based on disc shape, squamation, and tail morphology. Given that no other member of this group is known from the region, we propose the resurrection of Blyth’s species as
|
||
<taxonomicName id="4C0E00888567145DE447FECFFC350602" box="[790,1003,332,357]" class="Elasmobranchii" family="Potamotrygonidae" genus="Telatrygon" kingdom="Animalia" order="Myliobatiformes" pageId="13" pageNumber="358" phylum="Chordata" rank="species" species="crozieri">
|
||
<emphasis id="B97AA7198567145DE447FECFFC350602" box="[790,1003,332,357]" italics="true" pageId="13" pageNumber="358">Telatrygon crozieri</emphasis>
|
||
</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |