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155 lines
13 KiB
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<document ID-DOI="http://dx.doi.org/10.3897/BDJ.10.e69234" ID-PMC="PMC8930936" ID-Pensoft-Pub="1314-2828-10-e69234" ID-Pensoft-UUID="B4F4ECF8E5335FF9A5635D2697121148" ID-PubMed="35437410" ModsDocID="1314-2828-10-e69234" checkinTime="1647039104439" checkinUser="pensoft" docAuthor="Schoeneberg, Yannis & Koehler, Gunther" docDate="2022" docId="A770EC5FDEE2548695F275FA9C869985" docLanguage="en" docName="BiodivDatJour 10: e69234" docOrigin="Biodiversity Data Journal 10" docPubDate="2022-03-10" docSource="http://dx.doi.org/10.3897/BDJ.10.e69234" docTitle="Helicops apiaka Kawashita-Ribeiro, Àvila, Morais 2013" docType="treatment" docVersion="2" id="B4F4ECF8E5335FF9A5635D2697121148" lastPageNumber="69234" masterDocId="B4F4ECF8E5335FF9A5635D2697121148" masterDocTitle="Distribution and identification of the species in the genus Helicops Wagler, 1830 (Serpentes, Colubridae, Xenodontinae)" masterLastPageNumber="69234" masterPageNumber="69234" pageNumber="69234" updateTime="1668121952647" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Distribution and identification of the species in the genus Helicops Wagler, 1830 (Serpentes, Colubridae, Xenodontinae)</mods:title>
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</mods:titleInfo>
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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:role>
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<mods:namePart>Schoeneberg, Yannis</mods:namePart>
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<mods:nameIdentifier type="ORCID">https://orcid.org/0000-0003-1113-973X</mods:nameIdentifier>
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<mods:affiliation>Johann Wolfgang Goethe-University, Frankfurt am Main, Germany & Senckenberg Society for Nature Research, Frankfurt am Main, Germany</mods:affiliation>
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<mods:nameIdentifier type="email">yannis.schoeneberg@gmx.de</mods:nameIdentifier>
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</mods:name>
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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:role>
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<mods:namePart>Koehler, Gunther</mods:namePart>
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<mods:affiliation>Senckenberg Society for Nature Research, Frankfurt am Main, Germany</mods:affiliation>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>Biodiversity Data Journal</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2022</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2022-03-10</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>10</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>69234</mods:start>
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<mods:end>69234</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/BDJ.10.e69234</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/BDJ.10.e69234</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1314-2828-10-e69234</mods:identifier>
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<mods:identifier type="Pensoft-UUID">B4F4ECF8E5335FF9A5635D2697121148</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:plazi:treatment:A770EC5FDEE2548695F275FA9C869985" httpUri="http://treatment.plazi.org/id/A770EC5FDEE2548695F275FA9C869985" lastPageNumber="69234" pageId="0" pageNumber="69234">
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<subSubSection pageId="0" pageNumber="69234" type="nomenclature">
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<paragraph pageId="0" pageNumber="69234">
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<taxonomicName LSID="A770EC5F-DEE2-5486-95F2-75FA9C869985" authority="Kawashita-Ribeiro, Àvila, Morais, 2013" authorityName="Kawashita-Ribeiro, Àvila, Morais" authorityYear="2013" class="Reptilia" family="Dipsadidae" genus="Helicops" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Helicops apiaka" order="Squamata" pageId="0" pageNumber="69234" phylum="Chordata" rank="species" species="apiaka">
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Helicops apiaka Kawashita-Ribeiro,
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<normalizedToken originalValue="Àvila">Àvila</normalizedToken>
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, Morais, 2013
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</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69234" type="diagnosis">
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<paragraph pageId="0" pageNumber="69234">Diagnosis</paragraph>
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<paragraph pageId="0" pageNumber="69234">
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According to the information given in
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<bibRefCitation author="Kawashita-Ribeiro, Ricardo Alexandre" journalOrPublisher="Herpetologica" pageId="0" pageNumber="69234" pagination="80 - 90" refId="B6769856" refString="Kawashita-Ribeiro, Ricardo Alexandre, Avila, Robson Waldemar, Morais, Drausio Honorio, 2013. A new snake of the genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil. Herpetologica 69 (1): 80 - 90" title="A new snake of the genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil" volume="69" year="2013">Kawashita-Ribeiro et al. (2013)</bibRefCitation>
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,
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<taxonomicName lsidName="H. apiaka" pageId="0" pageNumber="69234" rank="species" species="apiaka">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. apiaka</emphasis>
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</taxonomicName>
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can be distinguished from all its congeners, except
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<taxonomicName lsidName="H. angulatus" pageId="0" pageNumber="69234" rank="species" species="angulatus">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. angulatus</emphasis>
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</taxonomicName>
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by the following combination of characteristics: absent intergenials, subcaudal keels present and 21-22 dorsal scale rows at mid-body (compared to 19 in
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<taxonomicName lsidName="H. gomesi" pageId="0" pageNumber="69234" rank="species" species="gomesi">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. gomesi</emphasis>
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</taxonomicName>
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). From
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<taxonomicName lsidName="H. angulatus" pageId="0" pageNumber="69234" rank="species" species="angulatus">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. angulatus</emphasis>
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</taxonomicName>
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, it differs by having 21-24 dorsal scale rows at anterior body, 21-22 at mid-body and 17-19 at posterior body (versus 19-21/19-20/17-19 in
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<taxonomicName lsidName="H. angulatus" pageId="0" pageNumber="69234" rank="species" species="angulatus">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. angulatus</emphasis>
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</taxonomicName>
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) and by having 118-127 ventral scales in males and 124-132 in females (versus 105-123 in male and 109-123 in female
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<taxonomicName lsidName="H. angulatus" pageId="0" pageNumber="69234" rank="species" species="angulatus">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. angulatus</emphasis>
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</taxonomicName>
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), as well as hemipenes morphology. The specimens examined in
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<bibRefCitation author="Kawashita-Ribeiro, Ricardo Alexandre" journalOrPublisher="Herpetologica" pageId="0" pageNumber="69234" pagination="80 - 90" refId="B6769856" refString="Kawashita-Ribeiro, Ricardo Alexandre, Avila, Robson Waldemar, Morais, Drausio Honorio, 2013. A new snake of the genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil. Herpetologica 69 (1): 80 - 90" title="A new snake of the genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil" volume="69" year="2013">Kawashita-Ribeiro et al. (2013)</bibRefCitation>
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originated from neighbouring areas to the
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<taxonomicName lsidName="H. apiaka" pageId="0" pageNumber="69234" rank="species" species="apiaka">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. apiaka</emphasis>
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</taxonomicName>
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locations. Our own examinations revealed that males of
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<taxonomicName lsidName="H. angulatus" pageId="0" pageNumber="69234" rank="species" species="angulatus">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. angulatus</emphasis>
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</taxonomicName>
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possess 103-119 ventrals in males and 104-125 in females. There is considerable overlap, especially between female specimens of the two species, thus excluding this character for identification. Besides that, we detected two specimens displaying morphology characters of
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<taxonomicName lsidName="H. angulatus" pageId="0" pageNumber="69234" rank="species" species="angulatus">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. angulatus</emphasis>
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</taxonomicName>
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(colouration, subcaudal keels, remaining pholidosis), but showing considerably more ventrals than other specimens of
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<taxonomicName lsidName="H. angulatus" pageId="0" pageNumber="69234" rank="species" species="angulatus">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. angulatus</emphasis>
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</taxonomicName>
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(SMF 17819, a female, with 156 ventrals and ZSM 0595/2003, female, with 130 ventrals). There is no locality information available for SMF 17819. ZSM 0595/2003 was collected at the Rio Parana in Porto
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<normalizedToken originalValue="Tibiriça">Tibirica</normalizedToken>
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, Sao Paulo, Brazil. This is approximately 1300 km distant from the distribution range of
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<taxonomicName lsidName="H. apiaka" pageId="0" pageNumber="69234" rank="species" species="apiaka">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. apiaka</emphasis>
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</taxonomicName>
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. The origin of a speciemen is probably an important feature in order to assign it to one of the two species (for information on references, see Suppl. material 3).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69234" type="distribution">
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<paragraph pageId="0" pageNumber="69234">Distribution</paragraph>
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<paragraph pageId="0" pageNumber="69234">
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The only known specimens of
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<taxonomicName lsidName="H. apiaka" pageId="0" pageNumber="69234" rank="species" species="apiaka">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. apiaka</emphasis>
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</taxonomicName>
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are from northern Mato Grosso and southern
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<normalizedToken originalValue="Pará">Para</normalizedToken>
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(Fig.
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<figureCitation captionStartId="F6767166" pageId="0" pageNumber="69234">1</figureCitation>
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<figureCitation captionStartId="F6767172" pageId="0" pageNumber="69234">b</figureCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="69234" type="morphology remark">
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<paragraph pageId="0" pageNumber="69234">Morphology remark</paragraph>
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<paragraph pageId="0" pageNumber="69234">
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Regarding the number of dorsal scale roles at mid-body in
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<taxonomicName lsidName="H. apiaka" pageId="0" pageNumber="69234" rank="species" species="apiaka">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. apiaka</emphasis>
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</taxonomicName>
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, there is contradictory information.
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<bibRefCitation author="Moraes-da-Silva, Antonio" journalOrPublisher="Zootaxa" pageId="0" pageNumber="69234" pagination="445 - 470" refId="B6769882" refString="Moraes-da-Silva, Antonio, Amaro, Renata Cecilia, Nunes Sales, Pedro M., Struessmann, Christine, Teixeira Junior, Mauro, Andrade, Albedi, J., Sudre, Vinicius, Recoder, Renato, Rodrigues Trefaut, Miguel, Curcio, Felipe Franco, 2019. Chance, luck and a fortunate finding: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes: Xenodontinae), from the Brazilian Pantanal wetlands. Zootaxa 4651 (3): 445 - 470" title="Chance, luck and a fortunate finding: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes: Xenodontinae), from the Brazilian Pantanal wetlands" volume="4651" year="2019">Moraes-da-Silva et al. (2019)</bibRefCitation>
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states that
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<taxonomicName lsidName="H. apiaka" pageId="0" pageNumber="69234" rank="species" species="apiaka">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. apiaka</emphasis>
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</taxonomicName>
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has 19-21 dorsal scale rows at mid-body, which would eliminate this character as a diagnostic character to distinguish it from
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<taxonomicName lsidName="H. angulatus" pageId="0" pageNumber="69234" rank="species" species="angulatus">
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<emphasis italics="true" pageId="0" pageNumber="69234">H. angulatus</emphasis>
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</taxonomicName>
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. This would leave only the number of ventrals in females as a sure diagnostic trait. However, in the original species description,
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<bibRefCitation author="Kawashita-Ribeiro, Ricardo Alexandre" journalOrPublisher="Herpetologica" pageId="0" pageNumber="69234" pagination="80 - 90" refId="B6769856" refString="Kawashita-Ribeiro, Ricardo Alexandre, Avila, Robson Waldemar, Morais, Drausio Honorio, 2013. A new snake of the genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil. Herpetologica 69 (1): 80 - 90" title="A new snake of the genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil" volume="69" year="2013">Kawashita-Ribeiro et al. (2013)</bibRefCitation>
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report 21-22 scale rows. At this point, we trust the data given by
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<bibRefCitation author="Kawashita-Ribeiro, Ricardo Alexandre" journalOrPublisher="Herpetologica" pageId="0" pageNumber="69234" pagination="80 - 90" refId="B6769856" refString="Kawashita-Ribeiro, Ricardo Alexandre, Avila, Robson Waldemar, Morais, Drausio Honorio, 2013. A new snake of the genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil. Herpetologica 69 (1): 80 - 90" title="A new snake of the genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil" volume="69" year="2013">Kawashita-Ribeiro et al. (2013)</bibRefCitation>
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, as both publications examined the same specimens.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |