treatments-xml/data/66/34/87/663487D6FFA8FFD2FEC9FD6DFE0FCA91.xml
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<document ID-DOI="http://doi.org/10.5281/zenodo.6492994" ID-ISSN="1982-0224" ID-Zenodo-Dep="6492994" approvalRequired="1" approvalRequired_for_originalDoi="1" checkinTime="1630380785404" checkinUser="carolina" docAuthor="A, Pablo Lehmann, Mayer, Fernanda &amp; Reis, Roberto E." docDate="2010" docId="663487D6FFA8FFD2FEC9FD6DFE0FCA91" docLanguage="en" docName="NeotropIchthyol.2010.7.pdf" docOrigin="Neotropical Ichthyology 8 (1)" docStyle="DocumentStyle:85A40B78B715C4497F837D9D78407CE5.4:NeotropIchthyol.2003-2013.journal_article" docStyleId="85A40B78B715C4497F837D9D78407CE5" docStyleName="NeotropIchthyol.2003-2013.journal_article" docStyleVersion="4" docTitle="Otocinclus flexilis Cope 1894" docType="treatment" docVersion="2" lastPageNumber="60" masterDocId="9A0DFFAEFFABFFD1FFD5FFFDFFE9CC56" masterDocTitle="Re-validation of Otocinclus arnoldi Regan and reappraisal of Otocinclus phylogeny (Siluriformes: Loricariidae)" masterLastPageNumber="68" masterPageNumber="57" pageId="3" pageNumber="60" updateTime="1650995928801" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
<mods:titleInfo>
<mods:title>Re-validation of Otocinclus arnoldi Regan and reappraisal of Otocinclus phylogeny (Siluriformes: Loricariidae)</mods:title>
</mods:titleInfo>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>A, Pablo Lehmann</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Mayer, Fernanda</mods:namePart>
</mods:name>
<mods:name type="personal">
<mods:role>
<mods:roleTerm>Author</mods:roleTerm>
</mods:role>
<mods:namePart>Reis, Roberto E.</mods:namePart>
</mods:name>
<mods:typeOfResource>text</mods:typeOfResource>
<mods:relatedItem type="host">
<mods:titleInfo>
<mods:title>Neotropical Ichthyology</mods:title>
</mods:titleInfo>
<mods:part>
<mods:date>2010</mods:date>
<mods:detail type="volume">
<mods:number>8</mods:number>
</mods:detail>
<mods:detail type="issue">
<mods:number>1</mods:number>
</mods:detail>
<mods:extent unit="page">
<mods:start>57</mods:start>
<mods:end>68</mods:end>
</mods:extent>
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<mods:classification>journal article</mods:classification>
<mods:identifier type="ISSN">1982-0224</mods:identifier>
</mods:mods>
<treatment ID-DOI="http://doi.org/10.5281/zenodo.6492994" ID-Zenodo-Dep="6492994" LSID="urn:lsid:plazi:treatment:663487D6FFA8FFD2FEC9FD6DFE0FCA91" httpUri="http://treatment.plazi.org/id/663487D6FFA8FFD2FEC9FD6DFE0FCA91" lastPageNumber="60" pageId="3" pageNumber="60">
<subSubSection box="[284,616,656,679]" pageId="3" pageNumber="60" type="nomenclature">
<paragraph blockId="3.[284,616,656,711]" box="[284,616,656,679]" pageId="3" pageNumber="60">
<heading box="[284,616,656,679]" centered="true" fontSize="10" level="2" pageId="3" pageNumber="60" reason="2">
<taxonomicName authority="Cope, 1894" authorityName="Cope" authorityYear="1894" box="[284,616,656,679]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="flexilis">
<emphasis bold="true" box="[284,616,656,679]" pageId="3" pageNumber="60">
<emphasis bold="true" box="[284,485,656,679]" italics="true" pageId="3" pageNumber="60">Otocinclus flexilis</emphasis>
Cope, 1894
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection pageId="3" pageNumber="60" type="description">
<paragraph blockId="3.[284,616,656,711]" box="[419,480,688,711]" pageId="3" pageNumber="60">
<figureCitation box="[419,480,688,711]" captionStart="Fig" captionStartId="4.[136,174,1757,1780]" captionTargetBox="[174,1421,174,1742]" captionTargetId="figure-112@4.[174,1421,174,1742]" captionTargetPageId="4" captionText="Fig. 2. Color variation of Otocinclus flexilis. (a) and (b): MCP 17414, SL = 37.6 and 44.6 mm respectively.(c) and (d): MCP 18307, SL = 37.2 and 36.8 mm respectively." pageId="3" pageNumber="60">
<emphasis bold="true" box="[419,480,688,711]" pageId="3" pageNumber="60">Fig. 2</emphasis>
</figureCitation>
</paragraph>
<paragraph blockId="3.[129,772,752,967]" pageId="3" pageNumber="60">
<taxonomicName authority="Cope, 1894: 97" authorityName="Cope" authorityPageNumber="97" authorityYear="1894" box="[129,484,752,775]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="flexilis">
<emphasis box="[129,318,752,775]" italics="true" pageId="3" pageNumber="60">Otocinclus flexilis</emphasis>
<materialsCitation box="[323,484,752,775]" collectionCode="ANSP" country="Brazil" location="rio Jacuhy" pageId="3" pageNumber="60" specimenCode="ANSP 21756" specimenCount="1" stateProvince="Rio Grande do Sul" typeStatus="lectotype">Cope, 1894: 97</materialsCitation>
</taxonomicName>
, pl. 8, fig. 13. Type locality:
<location LSID="urn:lsid:plazi:treatment:663487D6FFA8FFD2FEC9FD6DFE0FCA91:EB42601BFFA8FFD2FF4AFCEDFEE3CF71" box="[159,266,784,807]" country="Brazil" name="rio Jacuhy" pageId="3" pageNumber="60" stateProvince="Rio Grande do Sul">rio Jacuhy</location>
,
<collectingRegion box="[274,464,784,807]" country="Brazil" name="Rio Grande do Sul" pageId="3" pageNumber="60">Rio Grande do Sul</collectingRegion>
[rio Jacuí,
<collectingCountry box="[575,644,784,807]" name="Brazil" pageId="3" pageNumber="60">Brazil</collectingCountry>
].
<typeStatus box="[659,768,784,807]" pageId="3" pageNumber="60">Lectotype</typeStatus>
:
<specimenCode box="[159,302,816,839]" collectionCode="ANSP" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34784" lsid="urn:lsid:biocol.org:col:34784" name="Academy of Natural Sciences of Philadelphia" pageId="3" pageNumber="60">ANSP 21756</specimenCode>
, 40.0 mm SL, designated by
<bibRefCitation author="Schaefer, S" pageId="3" pageNumber="60" pagination="1 - 120" refId="ref11379" refString="Schaefer, S. A. 1997. The neotropical cascudinhos: Systematics and biogeography of the Otocinclus catfishes (Siluriformes: Loricariidae). Proceedings of the Academy of Natural Sciences of Philadelphia, 148: 1 - 120." type="journal article" year="1997">Schaefer (1997: 53)</bibRefCitation>
.
</paragraph>
</subSubSection>
<subSubSection pageId="3" pageNumber="60" type="reference_group">
<paragraph blockId="3.[129,772,752,967]" pageId="3" pageNumber="60">
<taxonomicName authority="Cope, 1894: 98" authorityName="Cope" authorityPageNumber="98" authorityYear="1894" box="[129,548,880,903]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="fimbriatus">
<emphasis box="[129,366,880,903]" italics="true" pageId="3" pageNumber="60">Otocinclus fimbriatus</emphasis>
<materialsCitation box="[376,548,880,903]" collectionCode="ANSP" country="Brazil" location="rio Jacuhy" pageId="3" pageNumber="60" specimenCode="ANSP 212752" specimenCount="1" stateProvince="Rio Grande do Sul" typeStatus="syntype">Cope, 1894: 98</materialsCitation>
</taxonomicName>
, pl. 9, fig. 16. Type locality:
<location LSID="urn:lsid:plazi:treatment:663487D6FFA8FFD2FEC9FD6DFE0FCA91:EB42601BFFA8FFD2FF28FC6DFE85CFF1" box="[253,364,912,935]" country="Brazil" name="rio Jacuhy" pageId="3" pageNumber="60" stateProvince="Rio Grande do Sul">rio Jacuhy</location>
,
<collectingRegion box="[374,571,912,935]" country="Brazil" name="Rio Grande do Sul" pageId="3" pageNumber="60">Rio Grande do Sul</collectingRegion>
[rio Jacuí,
<collectingCountry box="[689,761,912,935]" name="Brazil" pageId="3" pageNumber="60">Brazil</collectingCountry>
].
<typeStatus box="[159,259,944,967]" pageId="3" pageNumber="60">Syntypes</typeStatus>
:
<specimenCode box="[265,415,944,967]" collectionCode="ANSP" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:34784" lsid="urn:lsid:biocol.org:col:34784" name="Academy of Natural Sciences of Philadelphia" pageId="3" pageNumber="60">ANSP 212752</specimenCode>
(4) andANSP 21585-97 (14).
</paragraph>
</subSubSection>
<subSubSection pageId="3" pageNumber="60" type="diagnosis">
<paragraph blockId="3.[129,772,1008,1639]" pageId="3" pageNumber="60">
<emphasis bold="true" box="[129,247,1008,1031]" pageId="3" pageNumber="60">Diagnosis.</emphasis>
<taxonomicName authorityName="Cope" authorityYear="1894" box="[252,446,1008,1031]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="flexilis">
<emphasis box="[252,446,1008,1031]" italics="true" pageId="3" pageNumber="60">Otocinclus flexilis</emphasis>
</taxonomicName>
is distinguished from all other
<taxonomicName authorityName="Schaefer" authorityYear="1997" box="[129,246,1040,1063]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="genus">
<emphasis box="[129,246,1040,1063]" italics="true" pageId="3" pageNumber="60">Otocinclus</emphasis>
</taxonomicName>
(except for
<taxonomicName authorityName="Schaefer" authorityYear="1997" box="[375,503,1040,1063]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="xakriaba">
<emphasis box="[375,394,1040,1063]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[407,503,1040,1063]" italics="true" pageId="3" pageNumber="60">xakriaba</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Steindachner" authorityYear="1877" box="[516,616,1040,1063]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="affinis">
<emphasis box="[516,535,1040,1063]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[548,616,1040,1063]" italics="true" pageId="3" pageNumber="60">affinis</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Steindachner" authorityYear="1915" box="[629,764,1040,1063]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="hasemani">
<emphasis box="[629,648,1040,1063]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[661,764,1040,1063]" italics="true" pageId="3" pageNumber="60">hasemani</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Regan" authorityYear="1909" box="[129,239,1072,1095]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="arnoldi">
<emphasis box="[129,148,1072,1095]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[160,239,1072,1095]" italics="true" pageId="3" pageNumber="60">arnoldi</emphasis>
</taxonomicName>
, and
<taxonomicName authorityName="Axenrot &amp; Kullander" authorityYear="2003" box="[296,418,1072,1095]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="mimulus">
<emphasis box="[296,315,1072,1095]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[327,418,1072,1095]" italics="true" pageId="3" pageNumber="60">mimulus</emphasis>
</taxonomicName>
) by possessing an iris operculum and (except for
<taxonomicName authorityName="Schaefer" authorityYear="1997" box="[296,424,1104,1127]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="xakriaba">
<emphasis box="[296,315,1104,1127]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[328,424,1104,1127]" italics="true" pageId="3" pageNumber="60">xakriaba</emphasis>
</taxonomicName>
,
<taxonomicName authorityName="Regan" authorityYear="1909" box="[437,548,1104,1127]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="arnoldi">
<emphasis box="[437,456,1104,1127]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[469,548,1104,1127]" italics="true" pageId="3" pageNumber="60">arnoldi</emphasis>
</taxonomicName>
, and
<taxonomicName authorityName="Axenrot &amp; Kullander" authorityYear="2003" box="[606,729,1104,1127]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="mimulus">
<emphasis box="[606,625,1104,1127]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[638,729,1104,1127]" italics="true" pageId="3" pageNumber="60">mimulus</emphasis>
</taxonomicName>
) by having a lateral trunk coloration consisting of a series of 3-6 diffuse pigment blotches (
<figureCitation box="[408,474,1168,1191]" captionStart="Fig" captionStartId="4.[136,174,1757,1780]" captionTargetBox="[174,1421,174,1742]" captionTargetId="figure-112@4.[174,1421,174,1742]" captionTargetPageId="4" captionText="Fig. 2. Color variation of Otocinclus flexilis. (a) and (b): MCP 17414, SL = 37.6 and 44.6 mm respectively.(c) and (d): MCP 18307, SL = 37.2 and 36.8 mm respectively." pageId="3" pageNumber="60">Fig. 2</figureCitation>
). An inconspicuous and not elevated patch of 0-10 (mode = 0, mean = 3.0) enlarged odontodes on the postero-dorsal parieto-supraoccipital tip, the pectoral skeleton with closed
<emphasis box="[505,672,1264,1287]" italics="true" pageId="3" pageNumber="60">arrector fossae</emphasis>
, and the presence of a triangular pigment mark at the dorsal-fin base distinguishes
<taxonomicName authorityName="Cope" authorityYear="1894" box="[277,383,1328,1351]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="flexilis">
<emphasis box="[277,296,1328,1351]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[311,383,1328,1351]" italics="true" pageId="3" pageNumber="60">flexilis</emphasis>
</taxonomicName>
from
<taxonomicName authorityName="Schaefer" authorityYear="1997" box="[450,580,1328,1351]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="xakriaba">
<emphasis box="[450,469,1328,1351]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[484,580,1328,1351]" italics="true" pageId="3" pageNumber="60">xakriaba</emphasis>
</taxonomicName>
, which possesses an elevated patch of enlarged odontodes on the parietosupraoccipital, has an open
<emphasis box="[440,607,1392,1415]" italics="true" pageId="3" pageNumber="60">arrector fossae</emphasis>
, and lacks the dorsal-fin mark. From
<taxonomicName authorityName="Regan" authorityYear="1909" box="[371,482,1424,1447]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="arnoldi">
<emphasis box="[371,390,1424,1447]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[403,482,1424,1447]" italics="true" pageId="3" pageNumber="60">arnoldi</emphasis>
</taxonomicName>
and
<taxonomicName authorityName="Axenrot &amp; Kullander" authorityYear="2003" box="[534,657,1424,1447]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="mimulus">
<emphasis box="[534,553,1424,1447]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[566,657,1424,1447]" italics="true" pageId="3" pageNumber="60">mimulus</emphasis>
</taxonomicName>
it is easily distinguished by having six branched pectoral-fin rays (
<emphasis box="[742,764,1456,1479]" italics="true" pageId="3" pageNumber="60">vs</emphasis>
. five branched rays) and few (0-10, mode = 0, mean = 3.0) not elevated enlarged odontodes on the parieto-supraoccipital tip (
<emphasis box="[174,196,1552,1575]" italics="true" pageId="3" pageNumber="60">vs</emphasis>
. 2-23, mode = 7, mean = 8.3) not elevated enlarged odontodes in
<taxonomicName authorityName="Regan" authorityYear="1909" box="[280,395,1584,1607]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="arnoldi">
<emphasis box="[280,299,1584,1607]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[316,395,1584,1607]" italics="true" pageId="3" pageNumber="60">arnoldi</emphasis>
</taxonomicName>
and 5-14, mode = 7, mean = 8.4 conspicuously elevated odontodes in
<taxonomicName authorityName="Axenrot &amp; Kullander" authorityYear="2003" box="[536,660,1616,1639]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="mimulus">
<emphasis box="[536,555,1616,1639]" italics="true" pageId="3" pageNumber="60">O</emphasis>
.
<emphasis box="[569,660,1616,1639]" italics="true" pageId="3" pageNumber="60">mimulus</emphasis>
</taxonomicName>
).
</paragraph>
</subSubSection>
<subSubSection pageId="3" pageNumber="60" type="distribution">
<paragraph blockId="3.[129,771,1680,1735]" pageId="3" pageNumber="60">
<emphasis bold="true" box="[129,277,1680,1703]" pageId="3" pageNumber="60">Distribution.</emphasis>
<taxonomicName authorityName="Cope" authorityYear="1894" box="[285,483,1680,1703]" class="Actinopterygii" family="Loricariidae" genus="Otocinclus" kingdom="Animalia" order="Siluriformes" pageId="3" pageNumber="60" phylum="Chordata" rank="species" species="flexilis">
<emphasis box="[285,483,1680,1703]" italics="true" pageId="3" pageNumber="60">Otocinclus flexilis</emphasis>
</taxonomicName>
is restricted to the laguna dos Patos drainage basin (
<figureCitation box="[407,472,1712,1735]" captionStart="Fig" captionStartId="8.[136,174,752,775]" captionTargetBox="[156,753,185,739]" captionTargetId="figure-1800@8.[144,771,174,745]" captionTargetPageId="8" captionText="Fig. 5. Geographic distribution of Otocinclus flexilis (triangles) and O. arnoldi (dots). Open dot represents paratypes of O. mimulus. One symbol may cover more than one lot or locality." pageId="3" pageNumber="60">Fig. 5</figureCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>