237 lines
30 KiB
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237 lines
30 KiB
XML
<document ID-DOI="http://doi.org/10.5281/zenodo.6491801" ID-ISSN="1982-0224" ID-Zenodo-Dep="6491801" approvalRequired="104" approvalRequired_for_taxonomicNames="6" approvalRequired_for_textStreams="91" approvalRequired_for_treatments="7" checkinTime="1630369289621" checkinUser="carolina" docAuthor="Vari, Richard P., Ferraris Jr, Carl J. & de Pinna, Mário C. C." docDate="2005" docId="E56BC71F0E6FFFF93E59FBF4FB59E5EF" docLanguage="en" docName="NeotropIchthyol.2005.8.pdf" docOrigin="Neotropical Ichthyology 3 (2)" docSource="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000200001&lng=en&tlng=en" docStyle="DocumentStyle:85A40B78B715C4497F837D9D78407CE5.4:NeotropIchthyol.2003-2013.journal_article" docStyleId="85A40B78B715C4497F837D9D78407CE5" docStyleName="NeotropIchthyol.2003-2013.journal_article" docStyleVersion="4" docTitle="Denticetopsis royeroi Ferraris 1996" docType="treatment" docVersion="3" lastPageId="89" lastPageNumber="216" masterDocId="1952BF670E37FFA03F4CFFA8FFCEE255" masterDocTitle="The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study" masterLastPageNumber="238" masterPageNumber="127" pageId="88" pageNumber="215" updateTime="1650989277961" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
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<mods:titleInfo>
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<mods:title>The Neotropical whale catfishes (Siluriformes: Cetopsidae: Cetopsinae), a revisionary study</mods:title>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Vari, Richard P.</mods:namePart>
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<mods:name type="personal">
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Ferraris Jr, Carl J.</mods:namePart>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>de Pinna, Mário C. C.</mods:namePart>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:title>Neotropical Ichthyology</mods:title>
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<mods:part>
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<mods:date>2005</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2005-06-30</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>3</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>2</mods:number>
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<mods:extent unit="page">
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<mods:start>127</mods:start>
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<mods:end>238</mods:end>
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<mods:url>http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000200001&lng=en&tlng=en</mods:url>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.1590/S1679-62252005000200001</mods:identifier>
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<mods:identifier type="ISSN">1982-0224</mods:identifier>
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<mods:identifier type="Zenodo-Dep">5418569</mods:identifier>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.6491801" ID-Zenodo-Dep="6491801" LSID="urn:lsid:plazi:treatment:E56BC71F0E6FFFF93E59FBF4FB59E5EF" httpUri="http://treatment.plazi.org/id/E56BC71F0E6FFFF93E59FBF4FB59E5EF" lastPageId="89" lastPageNumber="216" pageId="88" pageNumber="215">
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<subSubSection box="[277,683,1116,1140]" pageId="88" pageNumber="215" type="nomenclature">
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<paragraph blockId="88.[277,683,1116,1171]" box="[277,683,1116,1140]" pageId="88" pageNumber="215">
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<heading box="[277,683,1116,1140]" centered="true" fontSize="10" level="2" pageId="88" pageNumber="215" reason="2">
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<taxonomicName authority="Ferraris, 1996" authorityName="Ferraris" authorityYear="1996" box="[277,683,1116,1140]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="88" pageNumber="215" phylum="Chordata" rank="species" species="royeroi">
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<emphasis bold="true" box="[277,683,1116,1140]" pageId="88" pageNumber="215">
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<emphasis bold="true" box="[277,511,1116,1140]" italics="true" pageId="88" pageNumber="215">Denticetopsis royeroi</emphasis>
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<bibRefCitation author="Ferraris, C" box="[519,683,1116,1139]" pageId="88" pageNumber="215" pagination="161 - 170" refId="ref108688" refString="Ferraris, C. J., Jr. 1996. Denticetopsis, a new genus of South American whale catfish (Siluriformes: Cetopsidae, Cetopsinae), with two new species. Proceedings of the CaliforniaAcademy of Sciences, 49 (6): 161 - 170." type="journal article" year="1996">Ferraris, 1996</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 box="[347,612,1148,1171]" pageId="88" pageNumber="215" type="description">
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<paragraph blockId="88.[277,683,1116,1171]" box="[347,612,1148,1171]" pageId="88" pageNumber="215">
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<figureCitation box="[347,432,1148,1171]" captionStart="Fig" captionStartId="81.[151,190,961,984]" captionTargetBox="[165,791,194,927]" captionTargetId="figure-667@81.[143,803,191,927]" captionTargetPageId="81" captionText="Fig. 46. Map of central and northern SouthAmerica showing geographic distribution of Denticetopsis epa (1 = holotype locality), Denticetopsis iwokrama (2 = holotype locality), Denticetopsis macilenta (3 = holotype locality of Hemicetopsis macilenta), Denticetopsis praecox (4 = holotype locality), Denticetopsis royeroi (5 = holotype locality), Denticetopsis sauli (6 = holotype locality), and Denticetopsis seducta (7 = holotype locality) (some symbols represent more that one locality and/or lot of specimens)." figureDoi="http://doi.org/10.5281/zenodo.5418670" httpUri="https://zenodo.org/record/5418670/files/figure.png" pageId="88" pageNumber="215">Figs. 46</figureCitation>
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,
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<figureCitation box="[441,469,1148,1171]" captionStart="Fig" captionStartId="89.[151,189,627,650]" captionTargetBox="[207,1417,206,587]" captionTargetId="figure-631@89.[207,1417,205,587]" captionTargetPageId="89" captionText="Fig. 51. Denticetopsis royeroi, holotype, MBUCV V-26785, 18.5 mm SL; Venezuela,Amazonas, Caño Chola, at crossing of road from San Carlos de río Negro to Solano (1°58’N, 67°00’W) (photo taken shortly after capture)." figureDoi="http://doi.org/10.5281/zenodo.5418680" httpUri="https://zenodo.org/record/5418680/files/figure.png" pageId="88" pageNumber="215">51</figureCitation>
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,
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<tableCitation box="[478,612,1148,1171]" captionStart-0="Table 16" captionStart-1="Table 17" captionStart-2="Table 18" captionStart-3="Table 19" captionStart-4="Table 20" captionStart-5="Table 21" captionStart-6="Table 22" captionStartId-0="94.[158,220,198,221]" captionStartId-1="94.[158,220,570,593]" captionStartId-2="94.[158,220,976,999]" captionStartId-3="94.[158,221,1343,1366]" captionStartId-4="94.[839,900,197,220]" captionStartId-5="94.[839,901,567,590]" captionStartId-6="94.[839,902,977,1000]" captionText-0="Table 16. Number of specimens of the species of Denticetopsis with cited number of dorsal and pectoral-fin rays. Bold indicates value for holotype when examined." captionText-1="Table 17. Number of specimens of the species of Denticetopsis with cited number of branched anal-fin rays. Bold indicates value for holotype when examined. None of anal-fin rays are branched in Denticetopsis royeroi and D. sauli." captionText-2="Table 18. Number of specimens of the species of Denticetopsis with cited number of total anal-fin rays. Bold indicates value for holotype when examined." captionText-3="Table 19. Number of specimens of the species of Denticetopsis with cited number of preanal vertebrae. Bold indicates values for holotype when available. Value for D. royeroi, known only from holotype which could not be radiographed, unavailable." captionText-4="Table 20. Number of specimens of the species of Denticetopsis with cited number of precaudal vertebrae.Bold indicates values for holotype when available. Value for D. royeroi, known only from holotype which could not be radiographed, unavailable." captionText-5="Table 21. Number of specimens of the species of Denticetopsis with cited number of caudal vertebrae. Bold indicates value for holotype when available for this study. Value for D. royeroi, known only from holotype which could not be radiographed, unavailable." captionText-6="Table 22. Number of specimens of species of Denticetopsis with cited number of total vertebrae. Bold indicates value for holotype when examined. Value for D. royeroi, known only from holotype which could not be radiographed, unavailable." pageId="88" pageNumber="215">Tables 16-22</tableCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="88" pageNumber="215" type="reference_group">
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<paragraph blockId="88.[158,801,1218,1401]" pageId="88" pageNumber="215">
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<treatmentCitationGroup pageId="88" pageNumber="215">
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<treatmentCitation author="Ferraris, C" box="[158,594,1218,1241]" page="167" pageId="88" pageNumber="215" year="1996">
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<taxonomicName authority="Ferraris, 1996: 167" authorityName="Ferraris" authorityPageNumber="167" authorityYear="1996" box="[158,594,1218,1241]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="88" pageNumber="215" phylum="Chordata" rank="species" species="royeroi">
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<emphasis box="[158,386,1218,1241]" italics="true" pageId="88" pageNumber="215">Denticetopsis royeroi</emphasis>
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<bibRefCitation author="Ferraris, C" box="[392,594,1218,1241]" pageId="88" pageNumber="215" pagination="161 - 170" refId="ref108688" refString="Ferraris, C. J., Jr. 1996. Denticetopsis, a new genus of South American whale catfish (Siluriformes: Cetopsidae, Cetopsinae), with two new species. Proceedings of the CaliforniaAcademy of Sciences, 49 (6): 161 - 170." type="journal article" year="1996">Ferraris, 1996: 167</bibRefCitation>
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</taxonomicName>
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</treatmentCitation>
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, figs. 4, 12 [
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<typeStatus box="[718,767,1218,1241]" pageId="88" pageNumber="215">type</typeStatus>
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locality:
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<collectingCountry box="[266,377,1250,1273]" name="Venezuela" pageId="88" pageNumber="215">Venezuela</collectingCountry>
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, Estado
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<collectingRegion box="[462,576,1250,1273]" country="Venezuela" name="Amazonas" pageId="88" pageNumber="215">Amazonas</collectingRegion>
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, Caño Chola at crossing of San Carlos de río Negro to Solano Road,
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<geoCoordinate box="[714,796,1282,1305]" degrees="1" direction="north" minutes="58" orientation="latitude" pageId="88" pageNumber="215" precision="925" value="1.9666667">1°58’N</geoCoordinate>
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,
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<geoCoordinate box="[196,289,1314,1337]" degrees="67" direction="west" minutes="00" orientation="longitude" pageId="88" pageNumber="215" precision="925" value="-67.0">67°00’W</geoCoordinate>
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].–
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<treatmentCitation author="Taphorn, D & Royero, A" box="[312,565,1313,1337]" page="85" pageId="88" pageNumber="215" year="1997">
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<bibRefCitation author="Taphorn, D & Royero, A" box="[312,565,1313,1337]" pageId="88" pageNumber="215" pagination="55 - 100" refId="ref113408" refString="Taphorn, D. C., R. Royero, A. Machado-Allison & F. Mago- Leccia. 1997. Lista actualizada de los peces de agua dulce de Venezuela, Pp. 55 - 100. In: E. La Marca, (Ed.), Vertebratos actuales y fosiles de Venezuela. Serie Catalogo Zoologico de Venezuela. Volume 1. Merida, Venezuela: Museo de Ciencia y Tecnologia de Merida." type="book chapter" year="1997">
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Taphorn
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<emphasis box="[413,464,1313,1337]" italics="true" pageId="88" pageNumber="215">et al.</emphasis>
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, 1997: 85
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</bibRefCitation>
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</treatmentCitation>
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[
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<collectingCountry box="[576,691,1314,1337]" name="Venezuela" pageId="88" pageNumber="215">Venezuela</collectingCountry>
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].–Evers & Seidel, 2002: 741 [listing].–Vari & Ferraris, 2003: 258 [in check list, distribution].
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</treatmentCitationGroup>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="88" pageNumber="215" type="diagnosis">
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<paragraph blockId="88.[158,801,1442,1977]" pageId="88" pageNumber="215">
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<emphasis bold="true" box="[158,276,1442,1465]" pageId="88" pageNumber="215">Diagnosis.</emphasis>
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<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[281,512,1442,1465]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="88" pageNumber="215" phylum="Chordata" rank="species" species="royeroi">
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<emphasis box="[281,512,1442,1465]" italics="true" pageId="88" pageNumber="215">Denticetopsis royeroi</emphasis>
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</taxonomicName>
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is distinguished from all of its congeners with the exception of
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<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[537,621,1473,1497]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="88" pageNumber="215" phylum="Chordata" rank="species" species="sauli">
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<emphasis box="[537,621,1473,1497]" italics="true" pageId="88" pageNumber="215">D. sauli</emphasis>
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</taxonomicName>
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by the combination of the possession of elongate, symphyseal teeth on the dentary, a reduced lateral line not extending posteriorly on the body beyond the abdomen, an edentulous vomer, a dorsal fin with only 4 segmented rays and without a spinous first ray, an obliquely-truncate margin of caudal fin, and the lack of horizontally-elongate, stellate, dark chromatophores when the chromatophores are expanded.
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<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[540,774,1698,1721]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="88" pageNumber="215" phylum="Chordata" rank="species" species="royeroi">
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<emphasis box="[540,774,1698,1721]" italics="true" pageId="88" pageNumber="215">Denticetopsis royeroi</emphasis>
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</taxonomicName>
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is distinguished from
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<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[364,447,1729,1753]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="88" pageNumber="215" phylum="Chordata" rank="species" species="sauli">
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<emphasis box="[364,447,1729,1753]" italics="true" pageId="88" pageNumber="215">D. sauli</emphasis>
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</taxonomicName>
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by the relative posterior extent of the margin of the maxilla (extending only slightly beyond the posterior margin of the orbit
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<emphasis box="[459,527,1794,1817]" italics="true" pageId="88" pageNumber="215">versus</emphasis>
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extending at least one eye diameter past the posterior margin of the orbit, respectively), the body depth (23% of SL
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<emphasis box="[448,517,1858,1881]" italics="true" pageId="88" pageNumber="215">versus</emphasis>
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17.1-19.5% of SL, respectively), and the extent of the membranous connection between the caudal and anal fins (membrane without a distinct notch
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<emphasis box="[224,293,1954,1977]" italics="true" pageId="88" pageNumber="215">versus</emphasis>
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distinctly incised, respectively).
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="89" lastPageNumber="216" pageId="88" pageNumber="215" type="description">
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<paragraph blockId="88.[839,1482,194,1977]" pageId="88" pageNumber="215">
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<emphasis bold="true" box="[839,979,194,217]" pageId="88" pageNumber="215">Description.</emphasis>
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Body moderately deep, slightly transverselycompressed anteriorly, becoming increasingly compressed posteriorly. Body depth at dorsal-fin origin equal to length of postorbital portion of head and approximately 0.20 of SL. Lateral line canal incomplete, restricted to abdomen, and limited to canal segment situated posterior of vertical through the posterior limit of base of dorsal fin. Dorsal profile of body straight and very slightly inclined from nape to dorsal-fin origin; nearly straight from dorsal-fin origin to caudal-fin base. Ventral profile of body convex along abdomen, approximately straight, but very slightly posterodorsally-slanted along base of anal fin. Caudal-peduncle length slightly less than onehalf of caudal-peduncle depth.
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</paragraph>
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<paragraph blockId="88.[839,1482,194,1977]" pageId="88" pageNumber="215">
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Head acutely triangular in lateral view and broadly obtusely-rounded anteriorly. Dorsal profile of head slightly convex from tip of snout to posterior nares and straight from nares to posterior of nape. Ventral profile of head gently convex. Profile of snout in dorsal view broadly rounded. Portion of head posterior of nares with lateral margins aligned nearly in parallel in dorsal view. Dorsal surface of posterior portion of head without enlarged jaw musculature apparent externally in many species of
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<taxonomicName authorityName="Bleeker" authorityYear="1858" box="[1104,1227,866,889]" class="Actinopterygii" family="Cetopsidae" kingdom="Animalia" order="Siluriformes" pageId="88" pageNumber="215" phylum="Chordata" rank="subFamily" subFamily="Cetopsinae">Cetopsinae</taxonomicName>
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.
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</paragraph>
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<paragraph blockId="88.[839,1482,194,1977]" pageId="88" pageNumber="215">Opercular membrane only slightly attached as far posteriorly as vertical through posterior margin of orbit. Opercular opening very wide; extending dorsal of pectoral-fin insertion by distance approximately equal to eye diameter and extending anterior of pectoral-fin insertion for distance equal to approximately one-half of HL.</paragraph>
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<paragraph blockId="88.[839,1482,194,1977]" pageId="88" pageNumber="215">Eyes situated on lateral surface of head; located entirely dorsal to horizontal extending through pectoral-fin insertion; eye visible in dorsal view, but not in ventral view, of head. Middle of orbit at slightly less than anterior one-third of HL. Eye diameter nearly one-half of snout length. Interorbital width approximately equal to snout length. Anterior narial opening circular, surrounded by short, anteriorly-directed, tubular rim of skin. Opening of anterior nares located at horizontal extending through tip of snout and slightly dorsal to horizontal extending through maxillary-barbel origin. Distance between anterior nares greater than distance from anterior to posterior nares, and approximately equal to distance from tip of snout to posterior margin of orbit. Posterior narial opening large and located near dorsal profile of head and dorsal to region between anterior margin and middle of eye; opening round, with anterior portions of aperture bordered by flap of skin, flap highest anteriorly. Distance between posterior nares slightly less than distance between anterior nares.</paragraph>
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<paragraph blockId="88.[839,1482,194,1977]" pageId="88" pageNumber="215">Mouth inferior; its width approximately two-thirds of HL. Margin of lower jaw broadly rounded, its posterior extent reaching beyond vertical through posterior margin of eye by distance equal to one eye diameter. Premaxillary tooth patch elongate, continuous across midline; anterior margin convex, posterior margin concave and running in parallel to anterior margin. Teeth in upper jaw small, conical, and sharply-pointed. Vomerine teeth absent. Oral surface of dentary at symphysis expanded medially and bearing irregular patch of somewhat larger conical teeth.</paragraph>
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<caption ID-DOI="http://doi.org/10.5281/zenodo.5418680" ID-Zenodo-Dep="5418680" httpUri="https://zenodo.org/record/5418680/files/figure.png" pageId="89" pageNumber="216" startId="89.[151,189,627,650]" targetBox="[207,1417,206,587]" targetPageId="89">
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<paragraph blockId="89.[151,1474,627,682]" pageId="89" pageNumber="216">
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<emphasis bold="true" box="[151,231,627,650]" pageId="89" pageNumber="216">Fig. 51.</emphasis>
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<emphasis box="[236,465,627,650]" italics="true" pageId="89" pageNumber="216">
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<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[236,461,627,650]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="89" pageNumber="216" phylum="Chordata" rank="species" species="royeroi">Denticetopsis royeroi</taxonomicName>
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,
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</emphasis>
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holotype, MBUCV V-26785, 18.5 mm SL; Venezuela, Amazonas, Caño Chola, at crossing of road from San Carlos de río Negro to Solano (1°58’N, 67°00’W) (photo taken shortly after capture).
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</paragraph>
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</caption>
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<paragraph blockId="89.[151,794,738,1977]" pageId="89" pageNumber="216">Maxillary barbel slender, its length slightly greater than one-half of HL; barbel origin located near vertical through anterior margin of orbit. Mental barbels slightly shorter than maxillary barbel. Medial mental-barbel origin located along vertical through middle of orbit. Lateral mental-barbel origin located slightly posterior of vertical through posterior margin of orbit. Tips of adpressed mental barbels falling short of posterior margin of opercle.</paragraph>
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<paragraph blockId="89.[151,794,738,1977]" pageId="89" pageNumber="216">Dorsal fin moderately large overall with length of dorsalfin base approximately 0.22-0.26 of HL and equal to distance from tip of snout to middle of orbit. Longest dorsal-fin ray slightly less than one-half of HL. Dorsal-fin spinelet absent. First dorsal-fin ray spinous for basal one-half, segmented but flexible distally and without distal filament. Distal margin of dorsal fin slightly convex. Dorsal-fin origin located at approximately anterior 0.39-0.40 of SL and along vertical through middle of adpressed pectoral fin. Tip of adpressed dorsal fin reaching to vertical through anal-fin origin. Posterior most dorsal-fin ray without posterior, membranous attachment to body.</paragraph>
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<paragraph blockId="89.[151,794,738,1977]" pageId="89" pageNumber="216">Caudal fin margin obliquely-truncate with dorsal principal fin rays longest. Length of dorsal most principal caudalfin ray approximately 1.5 times length of ventral most fin ray.</paragraph>
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<paragraph blockId="89.[151,794,738,1977]" pageId="89" pageNumber="216">Base of anal fin long, approximately 0.40 of SL. Anal-fin origin located along vertical through middle of SL. Anal-fin margin nearly straight, with rays of approximately equal length. Posterior most anal-fin ray with posterior, membranous attachment to first procurrent caudal-fin ray for entire length of ray.</paragraph>
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<paragraph blockId="89.[151,794,738,1977]" pageId="89" pageNumber="216">Pelvic fin moderate with distal margin convex and middle fin rays longest. Pelvic fin located entirely anterior to vertical through middle of SL, with pelvic-fin insertion situated along vertical through posterior portion of base of dorsal fin. Tip of adpressed pelvic fin falling slightly short of anal-fin origin. Medial most pelvic-fin ray with membranous attachment to body for basal one-fourth to one-third of its length.</paragraph>
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<paragraph blockId="89.[151,794,738,1977]" lastBlockId="89.[831,1386,738,761]" pageId="89" pageNumber="216">Pectoral-fin length approximately one-half of HL. Pectoral-fin margin very slightly convex, with middle fin rays longest. First pectoral-fin ray somewhat spinous, but flexible distally and without either serrations or distal filament.</paragraph>
|
||
<paragraph blockId="89.[831,1474,802,1465]" pageId="89" pageNumber="216">
|
||
<emphasis bold="true" box="[831,1085,802,825]" pageId="89" pageNumber="216">Coloration in alcohol.</emphasis>
|
||
Overall ground coloration of body creamy white with fine, brown, stellate chromatophores that when fully expanded approximately equal to, or less than, width of eye. Dorsal and lateral surfaces of nape, snout, and head with few scattered, dark chromatophores extending as far ventrally as horizontal running through eye. Portion of cheek ventral of orbit, operculum, and ventral surface of head and abdomen with few widely-scattered, dark chromatophores. Larger chromatophores present on head and lateral surface of body anterior to vertical through vent, with chromatophores located more posteriorly in that region notably smaller. Chromatophores evenly distributed over most of caudal region, but more densely concentrated on, and along side of, dorsal midline. Single row of dark chromatophores situated dorsal to base of anal fin.
|
||
</paragraph>
|
||
<paragraph blockId="89.[831,1474,802,1465]" pageId="89" pageNumber="216">Dorsal fin with diffuse, dark spot no larger than eye covering base of first two fin rays. Pectoral, pelvic, and anal fins without dark pigmentation. Caudal fin with small dark chromatophores irregularly arranged along margins of each ray.</paragraph>
|
||
<paragraph blockId="89.[831,1474,802,1465]" pageId="89" pageNumber="216">Barbels unpigmented or with only one or two, dark spots basally.</paragraph>
|
||
<paragraph blockId="89.[831,1474,1506,1689]" pageId="89" pageNumber="216">
|
||
<emphasis bold="true" box="[831,1069,1506,1529]" pageId="89" pageNumber="216">Sexual dimorphism.</emphasis>
|
||
Inasmuch as only
|
||
<specimenCount box="[1288,1441,1506,1529]" pageId="89" pageNumber="216" type="generic">one specimen</specimenCount>
|
||
of
|
||
<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[831,1064,1538,1561]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="89" pageNumber="216" phylum="Chordata" rank="species" species="royeroi">
|
||
<emphasis box="[831,1064,1538,1561]" italics="true" pageId="89" pageNumber="216">Denticetopsis royeroi</emphasis>
|
||
</taxonomicName>
|
||
is known, it is impossible to evaluate whether this species demonstrates the sexual dimorphism in the dorsal, pectoral, and anal fins that is present in many species within the
|
||
<taxonomicName authorityName="Bleeker" authorityYear="1858" box="[1029,1152,1634,1657]" class="Actinopterygii" family="Cetopsidae" kingdom="Animalia" order="Siluriformes" pageId="89" pageNumber="216" phylum="Chordata" rank="subFamily" subFamily="Cetopsinae">Cetopsinae</taxonomicName>
|
||
, albeit not in the other species of
|
||
<emphasis box="[861,1016,1666,1689]" italics="true" pageId="89" pageNumber="216">
|
||
<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[861,1012,1666,1689]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="89" pageNumber="216" phylum="Chordata" rank="genus">Denticetopsis</taxonomicName>
|
||
.
|
||
</emphasis>
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="89" pageNumber="216" type="distribution">
|
||
<paragraph blockId="89.[831,1474,1730,1817]" pageId="89" pageNumber="216">
|
||
<emphasis bold="true" box="[831,979,1730,1753]" pageId="89" pageNumber="216">Distribution.</emphasis>
|
||
<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[985,1218,1730,1753]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="89" pageNumber="216" phylum="Chordata" rank="species" species="royeroi">
|
||
<emphasis box="[985,1218,1730,1753]" italics="true" pageId="89" pageNumber="216">Denticetopsis royeroi</emphasis>
|
||
</taxonomicName>
|
||
is only known from the
|
||
<typeStatus box="[831,925,1762,1785]" pageId="89" pageNumber="216">holotype</typeStatus>
|
||
collected in a tributary to the upper río Negro,
|
||
<collectingCountry name="Venezuela" pageId="89" pageNumber="216">Venezuela</collectingCountry>
|
||
(
|
||
<figureCitation box="[910,986,1794,1817]" captionStart="Fig" captionStartId="81.[151,190,961,984]" captionTargetBox="[165,791,194,927]" captionTargetId="figure-667@81.[143,803,191,927]" captionTargetPageId="81" captionText="Fig. 46. Map of central and northern SouthAmerica showing geographic distribution of Denticetopsis epa (1 = holotype locality), Denticetopsis iwokrama (2 = holotype locality), Denticetopsis macilenta (3 = holotype locality of Hemicetopsis macilenta), Denticetopsis praecox (4 = holotype locality), Denticetopsis royeroi (5 = holotype locality), Denticetopsis sauli (6 = holotype locality), and Denticetopsis seducta (7 = holotype locality) (some symbols represent more that one locality and/or lot of specimens)." figureDoi="http://doi.org/10.5281/zenodo.5418670" httpUri="https://zenodo.org/record/5418670/files/figure.png" pageId="89" pageNumber="216">Fig. 46</figureCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection pageId="89" pageNumber="216" type="materials_examined">
|
||
<paragraph blockId="89.[831,1474,1870,1978]" pageId="89" pageNumber="216">
|
||
<emphasis bold="true" box="[831,1052,1870,1891]" pageId="89" pageNumber="216">Material examined.</emphasis>
|
||
<materialsCitation collectionCode="MBUCV" country="Venezuela" county="Cano Chola" latitude="1.9666667" location="rio Negro" longLatPrecision="1307" longitude="-67.0" municipality="San Carlos" pageId="89" pageNumber="216" specimenCount="1" stateProvince="Amazonas" typeStatus="holotype">
|
||
<specimenCount box="[1063,1185,1870,1891]" pageId="89" pageNumber="216" type="generic">1 specimen</specimenCount>
|
||
(18.5 mm SL).
|
||
<collectingCountry box="[1367,1474,1870,1891]" name="Venezuela" pageId="89" pageNumber="216">Venezuela</collectingCountry>
|
||
<collectingRegion box="[831,938,1899,1920]" country="Venezuela" name="Amazonas" pageId="89" pageNumber="216">Amazonas</collectingRegion>
|
||
:
|
||
<collectingCounty box="[946,1064,1899,1920]" pageId="89" pageNumber="216">Caño Chola</collectingCounty>
|
||
, at crossing of road from
|
||
<collectingMunicipality box="[1308,1414,1899,1920]" pageId="89" pageNumber="216">San Carlos</collectingMunicipality>
|
||
de
|
||
<location LSID="urn:lsid:plazi:treatment:E56BC71F0E6FFFF93E59FBF4FB59E5EF:681D20D20E6EFFF93AEBF8C3FCB2E5C8" country="Venezuela" county="Cano Chola" latitude="1.9666667" longLatPrecision="1307" longitude="-67.0" municipality="San Carlos" name="rio Negro" pageId="89" pageNumber="216" stateProvince="Amazonas">río Negro</location>
|
||
to
|
||
<location LSID="urn:lsid:plazi:treatment:E56BC71F0E6FFFF93E59FBF4FB59E5EF:681D20D20E6EFFF93CD1F820FC2FE5C8" box="[925,993,1928,1949]" country="Venezuela" county="Cano Chola" latitude="1.9666667" longLatPrecision="1307" longitude="-67.0" municipality="San Carlos" name="Solano" pageId="89" pageNumber="216" stateProvince="Amazonas">Solano</location>
|
||
(
|
||
<geoCoordinate box="[1008,1082,1928,1949]" degrees="1" direction="north" minutes="58" orientation="latitude" pageId="89" pageNumber="216" precision="925" value="1.9666667">1°58’N</geoCoordinate>
|
||
,
|
||
<geoCoordinate box="[1094,1186,1928,1949]" degrees="67" direction="west" minutes="00" orientation="longitude" pageId="89" pageNumber="216" precision="925" value="-67.0">67°00’W</geoCoordinate>
|
||
),
|
||
<collectionCode box="[1205,1294,1928,1949]" country="Venezuela" httpUri="http://grbio.org/cool/7nxg-etxt" name="Museo de Biologia de la Universidad Central de Venezuela" pageId="89" pageNumber="216">MBUCV</collectionCode>
|
||
V-26785, 1 (18.5,
|
||
<typeStatus box="[831,916,1957,1978]" pageId="89" pageNumber="216">holotype</typeStatus>
|
||
of
|
||
<taxonomicName authorityName="Ferraris" authorityYear="1996" box="[950,1161,1957,1978]" class="Actinopterygii" family="Cetopsidae" genus="Denticetopsis" kingdom="Animalia" order="Siluriformes" pageId="89" pageNumber="216" phylum="Chordata" rank="species" species="royeroi">
|
||
<emphasis box="[950,1161,1957,1978]" italics="true" pageId="89" pageNumber="216">Denticetopsis royeroi</emphasis>
|
||
</taxonomicName>
|
||
)
|
||
</materialsCitation>
|
||
.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |