473 lines
39 KiB
XML
473 lines
39 KiB
XML
<document ID-DOI="10.1590/S1679-62252008000100003" ID-ISSN="1982-0224" ID-Zenodo-Dep="5419567" approvalRequired="5" approvalRequired_for_textStreams="5" checkinTime="1630375063713" checkinUser="carolina" docAuthor="Wosiacki, Wolmar B. & Pinna, Mário de" docDate="2008" docId="03826B047106FFEAFC47FC58FF02FE2D" docLanguage="en" docName="NeotropIchthyol.2008.1.pdf" docOrigin="Neotropical Ichthyology 6 (1)" docSource="http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000100003&lng=en&tlng=en" docStyle="DocumentStyle:85A40B78B715C4497F837D9D78407CE5.4:NeotropIchthyol.2003-2013.journal_article" docStyleId="85A40B78B715C4497F837D9D78407CE5" docStyleName="NeotropIchthyol.2003-2013.journal_article" docStyleVersion="4" docTitle="Trichomycterus igobi Wosiacki & Pinna 2008, new species" docType="treatment" docVersion="2" lastPageId="4" masterDocId="FFBB137C7107FFEEFFEBFFF0FFD3FFF1" masterDocTitle="Trichomycterus igobi, a new catfish species from the rio Iguaçu drainage: the largest head in Trichomycteridae (Siluriformes: Trichomycteridae)" masterLastPageNumber="17" masterPageNumber="17" pageId="1" pageNumber="17" updateTime="1630683416563" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0" zenodo-license-figures="CC-BY-4.0">
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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>Trichomycterus igobi, a new catfish species from the rio Iguaçu drainage: the largest head in Trichomycteridae (Siluriformes: Trichomycteridae)</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>Wosiacki, Wolmar B.</mods:namePart>
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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>Pinna, Mário de</mods:namePart>
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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>Neotropical Ichthyology</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2008</mods:date>
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<mods:detail type="pubDate">
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<mods:number>2008-03-31</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>6</mods:number>
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</mods:detail>
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<mods:detail type="issue">
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<mods:number>1</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>17</mods:start>
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<mods:end>17</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://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252008000100003&lng=en&tlng=en</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">10.1590/S1679-62252008000100003</mods:identifier>
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<mods:identifier type="ISSN">1982-0224</mods:identifier>
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<mods:identifier type="Zenodo-Dep">5419567</mods:identifier>
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</mods:mods>
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<treatment LSID="urn:lsid:plazi:treatment:03826B047106FFEAFC47FC58FF02FE2D" httpUri="http://treatment.plazi.org/id/03826B047106FFEAFC47FC58FF02FE2D" lastPageId="4" pageId="1">
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<subSubSection box="[940,1319,936,959]" pageId="1" type="nomenclature">
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<paragraph blockId="1.[940,1319,936,991]" box="[940,1319,936,959]" pageId="1">
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<heading box="[940,1319,936,959]" centered="true" fontSize="10" level="2" pageId="1" reason="2">
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<emphasis bold="true" box="[940,1319,936,959]" pageId="1">
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<emphasis bold="true" box="[940,1183,936,959]" italics="true" pageId="1">
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<taxonomicName authority="Wosiacki & Pinna, 2008" authorityName="Wosiacki & Pinna" authorityYear="2008" box="[940,1177,936,959]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="1" phylum="Chordata" rank="species" species="igobi" status="new species">Trichomycterus igobi</taxonomicName>
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,
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</emphasis>
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<taxonomicNameLabel box="[1189,1319,936,959]" pageId="1" rank="species">new species</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 box="[1062,1198,968,991]" pageId="1" type="description">
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<paragraph blockId="1.[940,1319,936,991]" box="[1062,1198,968,991]" pageId="1">
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<figureCitation box="[1062,1134,968,991]" captionStart="Fig" captionStartId="2.[136,175,655,678]" captionTargetBox="[136,1458,258,635]" captionTargetId="figure-362@2.[136,1459,258,635]" captionTargetPageId="2" captionText="Fig. 1. Trichomycterus igobi, MPEG 13352, holotype, 90.1 mm SL. Lateral view of right side (photograph inverted)." figureDoi="http://doi.org/10.5281/zenodo.5419569" httpUri="https://zenodo.org/record/5419569/files/figure.png" pageId="1">Figs. 1</figureCitation>
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and
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<figureCitation box="[1185,1198,968,991]" captionStart="Fig" captionStartId="2.[816,855,1957,1980]" captionTargetBox="[816,1458,702,1939]" captionTargetId="figure-382@2.[816,1458,702,1939]" captionTargetPageId="2" captionText="Fig. 2. Head of Trichomycterus igobi, MPEG 13352, holotype, 90.1 mm SL:A) Dorsal view; B) Lateral view; C) Ventral view. Scale bar = 1 cm." figureDoi="http://doi.org/10.5281/zenodo.5419571" httpUri="https://zenodo.org/record/5419571/files/figure.png" pageId="1">2</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="1" type="materials_examined">
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<paragraph blockId="1.[809,1451,1032,1341]" pageId="1">
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<materialsCitation collectingDate="2005-04" collectionCode="NUP" collectorName="de Candoi" country="Brazil" location="rio Jordao" municipality="Municipio de Candoi" pageId="1" specimenCode="MPEG 13352" specimenCount="1" stateProvince="Parana" typeStatus="holotype">
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<emphasis bold="true" box="[809,909,1032,1053]" pageId="1">
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<typeStatus box="[809,906,1032,1053]" pageId="1">Holotype</typeStatus>
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.
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</emphasis>
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<specimenCode box="[916,1050,1032,1053]" collectionCode="MPEG" country="Brazil" httpUri="http://grbio.org/cool/90vz-swjg" name="Museu Paraense Emilio Goeldi" pageId="1">MPEG 13352</specimenCode>
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(
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<quantity box="[1062,1150,1032,1053]" metricMagnitude="-2" metricUnit="m" metricValue="9.01" pageId="1" unit="mm" value="90.1">90.1 mm</quantity>
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SL),
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<collectingCountry box="[1204,1266,1032,1053]" name="Brazil" pageId="1">Brazil</collectingCountry>
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, Estado do
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<collectingRegion box="[1378,1447,1032,1053]" country="Brazil" name="Parana" pageId="1">Paraná</collectingRegion>
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,
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<collectingMunicipality box="[809,1022,1061,1082]" pageId="1">
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Município
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<collectorName box="[918,1022,1061,1082]" pageId="1">de Candói</collectorName>
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</collectingMunicipality>
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,
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<location LSID="urn:lsid:plazi:treatment:03826B047106FFEAFC47FC58FF02FE2D:8EF48CC97106FFEFFBE2FBD5FBBEFBCB" box="[1033,1133,1061,1082]" country="Brazil" municipality="Municipio de Candoi" name="rio Jordao" pageId="1" stateProvince="Parana">rio Jordão</location>
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above the hydroelectric dam of Santa Clara,
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<date box="[933,1028,1089,1110]" pageId="1" value="2005-04">
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<collectingDate box="[933,1028,1089,1110]" pageId="1" value="2005-04">Apr 2005</collectingDate>
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</date>
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,
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<collectionCode box="[1038,1085,1089,1110]" pageId="1">NUP</collectionCode>
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team col.
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</materialsCitation>
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</paragraph>
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<paragraph blockId="1.[809,1451,1032,1341]" pageId="1">
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<materialsCitation box="[809,1066,1118,1139]" collectionCode="NUP" pageId="1" specimenCode="NUP 4007, 2" specimenCount="1" typeStatus="paratype">
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<emphasis bold="true" box="[809,919,1118,1139]" pageId="1">
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<typeStatus box="[809,916,1118,1139]" pageId="1">Paratypes</typeStatus>
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.
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</emphasis>
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<specimenCode box="[929,1038,1118,1139]" collectionCode="NUP" pageId="1">NUP 4007</specimenCode>
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,
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<specimenCode box="[1052,1066,1118,1139]" collectionCode="NUP" pageId="1">2</specimenCode>
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</materialsCitation>
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,
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<materialsCitation collectingDate="2005-04-08" country="Brazil" county="Estado" location="Sobradinho" municipality="Municipio de Candoi" pageId="1" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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62.0-
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<quantity box="[1131,1221,1118,1139]" metricMagnitude="-2" metricUnit="m" metricValue="6.63" pageId="1" unit="mm" value="66.3">66.3 mm</quantity>
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SL,
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<collectingCountry box="[1275,1338,1118,1139]" name="Brazil" pageId="1">Brazil</collectingCountry>
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,
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<collectingCounty box="[1351,1418,1118,1139]" pageId="1">Estado</collectingCounty>
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do
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<collectingRegion box="[809,878,1147,1168]" country="Brazil" name="Parana" pageId="1">Paraná</collectingRegion>
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,
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<collectingMunicipality box="[889,1101,1147,1168]" pageId="1">Município de Candói</collectingMunicipality>
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, rio do
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<location LSID="urn:lsid:plazi:treatment:03826B047106FFEAFC47FC58FF02FE2D:8EF48CC97106FFEFFB71FB8BFAD9FB61" box="[1178,1290,1147,1168]" country="Brazil" county="Estado" municipality="Municipio de Candoi" name="Sobradinho" pageId="1" stateProvince="Parana">Sobradinho</location>
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(tributary to
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<location LSID="urn:lsid:plazi:treatment:03826B047106FFEAFC47FC58FF02FE2D:8EF48CC97106FFEFFA7BFB8BFCBDFB5C" country="Brazil" county="Estado" municipality="Municipio de Candoi" name="rio Jordao" pageId="1" stateProvince="Parana">rio Jordão</location>
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),
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<date box="[896,1012,1176,1197]" pageId="1" value="2005-04-08">
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<collectingDate box="[896,1012,1176,1197]" pageId="1" value="2005-04-08">8 Apr 2005</collectingDate>
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</date>
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</materialsCitation>
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,
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<collectionCode box="[1024,1072,1176,1197]" pageId="1">NUP</collectionCode>
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team col;
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<materialsCitation box="[1180,1345,1176,1197]" collectionCode="MPEG" country="Brazil" pageId="1" specimenCode="MPEG 13353, 2" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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<specimenCode box="[1180,1319,1176,1197]" collectionCode="MPEG" country="Brazil" httpUri="http://grbio.org/cool/90vz-swjg" name="Museu Paraense Emilio Goeldi" pageId="1">MPEG 13353</specimenCode>
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,
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<specimenCode box="[1331,1345,1176,1197]" collectionCode="MPEG" country="Brazil" httpUri="http://grbio.org/cool/90vz-swjg" name="Museu Paraense Emilio Goeldi" pageId="1">2</specimenCode>
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</materialsCitation>
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,
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<quantity metricMagnitude="-2" metricUnit="m" metricValue="7.755" metricValueMax="8.27" metricValueMin="7.24" pageId="1" unit="mm" value="77.55" valueMax="82.7" valueMin="72.4">72.4-82.7 mm</quantity>
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SL, collected with
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<materialsCitation box="[1046,1154,1205,1226]" collectionCode="NUP" country="Brazil" pageId="1" specimenCode="NUP 4007" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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<specimenCode box="[1046,1154,1205,1226]" collectionCode="NUP" pageId="1">NUP 4007</specimenCode>
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</materialsCitation>
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;
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<materialsCitation box="[1166,1345,1205,1226]" collectionCode="MZUSP" country="Brazil" pageId="1" specimenCode="MZUSP 94842, 2" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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<specimenCode box="[1166,1318,1205,1226]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="1">MZUSP 94842</specimenCode>
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,
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<specimenCode box="[1331,1345,1205,1226]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="1">2</specimenCode>
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</materialsCitation>
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,
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<quantity metricMagnitude="-2" metricUnit="m" metricValue="7.935" metricValueMax="8.66" metricValueMin="7.209999999999999" pageId="1" unit="mm" value="79.35" valueMax="86.6" valueMin="72.1">72.1-86.6 mm</quantity>
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SL, collected with
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<materialsCitation box="[1046,1154,1233,1254]" collectionCode="NUP" country="Brazil" pageId="1" specimenCode="NUP 4007" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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<specimenCode box="[1046,1154,1233,1254]" collectionCode="NUP" pageId="1">NUP 4007</specimenCode>
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</materialsCitation>
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;
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<materialsCitation box="[1166,1344,1233,1254]" collectionCode="MZUSP" country="Brazil" pageId="1" specimenCode="MZUSP 94843, 3" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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<specimenCode box="[1166,1318,1233,1254]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="1">MZUSP 94843</specimenCode>
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,
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<specimenCode box="[1331,1344,1233,1254]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="1">3</specimenCode>
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</materialsCitation>
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,
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<materialsCitation country="Brazil" location="rio Jordao" municipality="Municipio de Candoi" pageId="1" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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63.0-
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<quantity metricMagnitude="-2" metricUnit="m" metricValue="8.98" pageId="1" unit="mm" value="89.8">89.8 mm</quantity>
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SL,
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<collectingCountry box="[890,952,1262,1283]" name="Brazil" pageId="1">Brazil</collectingCountry>
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, Estado do
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<collectingRegion box="[1059,1127,1262,1283]" country="Brazil" name="Parana" pageId="1">Paraná</collectingRegion>
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,
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<collectingMunicipality box="[1135,1340,1262,1283]" pageId="1">Município de Candói</collectingMunicipality>
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,
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<location LSID="urn:lsid:plazi:treatment:03826B047106FFEAFC47FC58FF02FE2D:8EF48CC97106FFEFFAAEFB1EFA74FAF2" box="[1349,1447,1262,1283]" country="Brazil" municipality="Municipio de Candoi" name="rio Jordao" pageId="1" stateProvince="Parana">rio Jordão</location>
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, no date
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</materialsCitation>
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,
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<collectionCode box="[888,936,1291,1312]" pageId="1">NUP</collectionCode>
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team col;
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<materialsCitation box="[1033,1184,1291,1312]" collectionCode="MPEG" country="Brazil" pageId="1" specimenCode="MPEG 13354, 1" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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<specimenCode box="[1033,1167,1291,1312]" collectionCode="MPEG" country="Brazil" httpUri="http://grbio.org/cool/90vz-swjg" name="Museu Paraense Emilio Goeldi" pageId="1">MPEG 13354</specimenCode>
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,
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<specimenCode box="[1175,1184,1291,1312]" collectionCode="MPEG" country="Brazil" httpUri="http://grbio.org/cool/90vz-swjg" name="Museu Paraense Emilio Goeldi" pageId="1">1</specimenCode>
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</materialsCitation>
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c&s,
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<quantity box="[1237,1320,1291,1312]" metricMagnitude="-2" metricUnit="m" metricValue="7.09" pageId="1" unit="mm" value="70.9">70.9 mm</quantity>
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SL, collected with
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<materialsCitation box="[861,1015,1320,1341]" collectionCode="MZUSP" country="Brazil" pageId="1" specimenCode="MZUSP 94843" specimenCount="1" stateProvince="Parana" typeStatus="paratype">
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<specimenCode box="[861,1015,1320,1341]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="1">MZUSP 94843</specimenCode>
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="2" pageId="1" type="diagnosis">
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<paragraph blockId="1.[809,1452,1381,2011]" pageId="1">
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<emphasis bold="true" box="[809,927,1381,1404]" pageId="1">Diagnosis.</emphasis>
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<taxonomicName authorityName="Wosiacki & Pinna" authorityYear="2008" box="[933,1163,1381,1404]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="1" phylum="Chordata" rank="species" species="igobi">
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<emphasis box="[933,1163,1381,1404]" italics="true" pageId="1">Trichomycterus igobi</emphasis>
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</taxonomicName>
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is distinguishable from all other species currently in
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<taxonomicName authorityName="Wosiacki & Pinna" authorityYear="2008" box="[1093,1261,1413,1436]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="1" phylum="Chordata" rank="genus">
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<emphasis box="[1093,1261,1413,1436]" italics="true" pageId="1">Trichomycterus</emphasis>
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</taxonomicName>
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by its large head (23.8-26.8% SL), which is proportionally the largest head in any
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<taxonomicName authorityName="Bleeker" authorityYear="1858" box="[854,1049,1477,1500]" class="Actinopterygii" family="Trichomycteridae" kingdom="Animalia" order="Siluriformes" pageId="1" phylum="Chordata" rank="family">Trichomycteridae</taxonomicName>
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. Other diagnostic features that distinguish the new species from most or all of its congeners include an almost entirely cartilaginous second hypobranchial (with only vestigial ossification); a mesially expanded palatine ossification; a narrow cleithrum, falciform in shape; and the lack of a proximal posterior concavity on the third ceratobranchial. The rigid spine-like morphology of individual procurrent rays of the caudal fin, the extension of the dorsal caudal-fin procurrent ray series (extending for ten neural spine tips), and the presence of ten or eleven branchiostegal rays each distinguish
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<taxonomicName authorityName="Wosiacki & Pinna" authorityYear="2008" box="[1009,1099,1797,1820]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="1" phylum="Chordata" rank="species" species="igobi">
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<emphasis box="[1009,1099,1797,1820]" italics="true" pageId="1">T. igobi</emphasis>
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</taxonomicName>
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from all congeners except
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<taxonomicName baseAuthorityName="Miranda Ribeiro" baseAuthorityYear="1968" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="1" phylum="Chordata" rank="species" species="stawiarski">
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<emphasis italics="true" pageId="1">T. stawiarski</emphasis>
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</taxonomicName>
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and
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<emphasis box="[977,998,1829,1852]" italics="true" pageId="1">T.</emphasis>
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sp. C (see Discussion). Other characters shared with various other species of
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<taxonomicName authorityName="Wosiacki & Pinna" authorityYear="2008" box="[1195,1363,1861,1884]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="1" phylum="Chordata" rank="genus">
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<emphasis box="[1195,1363,1861,1884]" italics="true" pageId="1">Trichomycterus</emphasis>
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</taxonomicName>
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yet useful for identification include a dorsal fin located on a concavity on dorsal profile of trunk; the short caudal peduncle (15.4- 19.7% SL); and the first anal-fin ray base posterior to the vertical through the base of the last dorsal-fin ray.
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</paragraph>
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<paragraph blockId="2.[646,1459,182,205]" box="[646,1459,182,205]" pageId="2">
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<emphasis box="[646,941,182,203]" italics="true" pageId="2">W. B. Wosiacki & M. de Pinna</emphasis>
|
|
19
|
|
</paragraph>
|
|
</subSubSection>
|
|
<caption ID-DOI="http://doi.org/10.5281/zenodo.5419569" ID-Zenodo-Dep="5419569" box="[136,1358,655,678]" httpUri="https://zenodo.org/record/5419569/files/figure.png" pageId="2" startId="2.[136,175,655,678]" targetBox="[136,1458,258,635]" targetPageId="2">
|
|
<paragraph blockId="2.[136,1358,655,678]" box="[136,1358,655,678]" pageId="2">
|
|
<emphasis bold="true" box="[136,205,655,678]" pageId="2">Fig. 1.</emphasis>
|
|
<taxonomicName authority=", MPEG" authorityName="MPEG" box="[210,522,655,678]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="2" phylum="Chordata" rank="species" species="igobi">
|
|
<emphasis box="[210,436,655,678]" italics="true" pageId="2">Trichomycterus igobi</emphasis>
|
|
, MPEG
|
|
</taxonomicName>
|
|
13352, holotype, 90.1 mm SL. Lateral view of right side (photograph inverted).
|
|
</paragraph>
|
|
</caption>
|
|
<subSubSection lastPageId="3" pageId="2" type="description">
|
|
<paragraph blockId="2.[136,779,709,2043]" pageId="2">
|
|
<emphasis bold="true" box="[136,276,709,732]" pageId="2">Description.</emphasis>
|
|
Morphometric data for
|
|
<typeStatus box="[531,625,709,732]" pageId="2">holotype</typeStatus>
|
|
and
|
|
<typeStatus box="[675,778,709,732]" pageId="2">paratypes</typeStatus>
|
|
given in
|
|
<tableCitation box="[227,306,741,764]" captionStart="Table 1" captionStartId="3.[809,872,1259,1282]" captionText="Table 1. Morphometric data for holotype and paratypes (except MPEG 13354) of Trichomycterus igobi (n = 10 including the holotype)." pageId="2">Table 1</tableCitation>
|
|
.
|
|
</paragraph>
|
|
<paragraph blockId="2.[136,779,709,2043]" pageId="2">Body short, rounded at level of pectoral girdle and gradually more compressed posteriorly. Dorsal profile of trunk straight or slightly convex, ventral profile gently convex. Dorsal and ventral profiles of caudal peduncle slightly convex. Integument thick and opaque, especially over dorsal-, anal- and pectoral-fin bases. Small papillae visible under stereomicroscope over surface of body; papillae larger and more densely concentrated over oral surface of lips. Head large, longer than wide, depressed. Head width larger than maximum body width. Snout broad, convex in dorsal view. Dorsal profile of head straight in lateral view; ventral profile slightly convex. Interorbital region flat. Lateral portion of head swollen by well-developed jaw muscles. Eyes round, dorso-laterally oriented, slightly converging anteriorly towards midline. Orbital rim not free. Skin covering eye thin and transparent. Anterior nostrils smaller than eye, separated by space approximately equal to interorbital, surrounded by fleshy flap of integument posterolaterally continuous with nasal barbel. Posterior nostrils smaller and more closely positioned to each other than anterior ones, partially surrounded anteriorly, laterally and medially by thin flap of skin. Branchial membranes thick, narrowly united to isthmus anteriorly. Gill opening wide, not constricted. Ten or eleven (modally ten) branchiostegal rays, most of which clearly visible externally.</paragraph>
|
|
<paragraph blockId="2.[136,779,709,2043]" pageId="2">Mouth wide, subterminal, with corners laterally oriented. Upper and lower lips fleshy, similar-sized. Lower lip with large fleshy lobes located posteromedially to origin of rictal barbels.</paragraph>
|
|
<paragraph blockId="2.[136,779,709,2043]" pageId="2">Barbels short and thin, gradually narrowing to fine tips. Nasal barbels flat and narrow, posteriorly reaching middle of eyes. Origin of nasal barbels on posterolateral portion of integument flap around anterior nostril. Maxillary and rictal barbels thin and moderately long, both reaching vertical through posterior margin of eyes.</paragraph>
|
|
<paragraph blockId="2.[136,779,709,2043]" lastBlockId="3.[129,772,261,988]" lastPageId="3" pageId="2">
|
|
Pectoral fin narrow, with rounded margin. Pectoral-fin rays i,7, first one longest, unbranched, not prolonged as filament. Dorsal fin round, with i,6-7 rays (modally i,7, including
|
|
<typeStatus pageId="2">holotype</typeStatus>
|
|
), second and third longest. Anal fin shorter and narrower than dorsal fin. Base of first anal-fin ray located posterior to vertical through base of last dorsal-fin ray. Anal-fin 20 A new trichomycterid catfish from the rio Iguaçu drainage rays i-ii,5, second ray longest. Pelvic fin with i,4 rays, second one longest. Pelvic-fin base anterior to dorsal-fin origin; inner rays of contralateral pelvic-fin not overlapping when in repose; distal part of fin covering urogenital opening. Caudal fin truncate with straight corners; distal margin slightly deeper than fin base; 6+7 principal rays.
|
|
</paragraph>
|
|
<caption ID-DOI="http://doi.org/10.5281/zenodo.5419571" ID-Zenodo-Dep="5419571" httpUri="https://zenodo.org/record/5419571/files/figure.png" pageId="2" startId="2.[816,855,1957,1980]" targetBox="[816,1458,702,1939]" targetPageId="2">
|
|
<paragraph blockId="2.[816,1459,1957,2044]" pageId="2">
|
|
<emphasis bold="true" box="[816,888,1957,1980]" pageId="2">Fig. 2.</emphasis>
|
|
Head of
|
|
<taxonomicName authority=", MPEG" authorityName="MPEG" box="[991,1311,1957,1980]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="2" phylum="Chordata" rank="species" species="igobi">
|
|
<emphasis box="[991,1222,1957,1980]" italics="true" pageId="2">Trichomycterus igobi</emphasis>
|
|
, MPEG
|
|
</taxonomicName>
|
|
13352, holotype, 90.1 mm SL: A) Dorsal view; B) Lateral view; C) Ventral view. Scale bar = 1 cm.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph blockId="3.[129,772,261,988]" pageId="3">Opercular patch of odontodes very small, with 9-12 short, thin, straight odontodes with thick tips. Interopercular patch of odontodes with nine short, thick, conic odontodes arranged in a single main series, with additional odontodes posteriorly.</paragraph>
|
|
<paragraph blockId="3.[129,772,261,988]" pageId="3">Cephalic sensory canals including complete supraorbital canal and incomplete infraorbital canal. Infraorbital restricted to posterior region corresponding to pores i10 and i11. Supraorbital pores S1, S3 and S6. Two paired pores S6. Laterosensory canal reduced on trunk, comprising two pores at vertical through middle of pectoral fin. Vertebra 37, ribs 13 pairs, first thickest, 6th and 7th longest, last rib rudimentary. Dorsal-fin pterygiophores 8, first one inserting anterior to neural spine of 17th free vertebra. Anal pterygiophores 6, first one anterior to hemal spine of 23rd free vertebra. Two hypural ossifications on upper hypural plate, parahypural and hypurals one and two fused on lower plate. Procurrent caudal-fin rays 24 dorsally and 13 ventrally.</paragraph>
|
|
<caption ID-DOI="http://doi.org/10.5281/zenodo.5419573" ID-Zenodo-Dep="5419573" httpUri="https://zenodo.org/record/5419573/files/figure.png" pageId="3" startId="3.[809,848,806,829]" targetBox="[809,1451,259,773]" targetPageId="3">
|
|
<paragraph blockId="3.[809,1451,806,861]" pageId="3">
|
|
<emphasis bold="true" box="[809,879,806,829]" pageId="3">Fig. 3.</emphasis>
|
|
Southern Brazil, showing approximate geographical distribution (black circle) of
|
|
<taxonomicName box="[1113,1341,838,861]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="3" phylum="Chordata" rank="species" species="igobi">
|
|
<emphasis box="[1113,1341,838,861]" italics="true" pageId="3">Trichomycterus igobi</emphasis>
|
|
</taxonomicName>
|
|
.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph blockId="3.[129,772,1029,2043]" pageId="3">
|
|
<emphasis bold="true" box="[129,386,1029,1052]" pageId="3">Color in preservative.</emphasis>
|
|
Body pigmentation arranged in at least two different layers of integument. Deep layer composed of relatively large irregular dark spots of variable size and shape, larger and more concentrated on dorsum of trunk, gradually becoming more scattered and smaller on sides, entering dorsal surface of head only posteriorly and completely absent on ventral surface of trunk and head. A more superficially-located pattern of fine spots overlays large marking with relatively uniform freckle, densest on dorsum. Smaller superficial markings extend onto entire dorsal and lateral surfaces of head, as fine spots smaller than those on body, and form main component of dark pigmentation at that region. Sides of head slightly less heavily pigmented than dorsal region. Opercular patch of odontodes with pigmentation continuous with that on remainder of head. Odontode-bearing area of interopercle almost devoid of dark pigment, in contrast to area of head immediately dorsal to it. Upper lip with small spots similar to those on rest of head. Lower lip with small dark fields close to its anterior margin. Dorsal fin with irregular dark markings along its basal portion and anterior edge, with additional spots along rays on rest of fin, in some specimens aligned so as to form a poorlydefined stripe across the distal third of fin. Anal fin with dark pigmentation similar to that of dorsal fin, but generally fainter. Caudal fin covered with small irregular spots, often aligned to form one or more rough vertical lines across fin. Dorsal surface of pectoral fin with small dark markings similar to those on rest of flanks, fading distally to transparent margin. Pelvic fins mostly white, with only few dark chromatophores at base. Nasal barbels with irregular dark fields along entire length, on both surfaces. Maxillary and rictal barbels with dark markings mostly on dorsal surface.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection pageId="3" type="distribution">
|
|
<paragraph blockId="3.[809,1451,923,978]" pageId="3">
|
|
<emphasis bold="true" box="[809,957,923,946]" pageId="3">Distribution.</emphasis>
|
|
Lower rio Jordão, close to its mouth on rio Iguaçu, rio
|
|
<collectingRegion box="[927,1000,955,978]" country="Brazil" name="Parana" pageId="3">Paraná</collectingRegion>
|
|
drainage, Southern
|
|
<collectingCountry box="[1210,1275,955,978]" name="Brazil" pageId="3">Brazil</collectingCountry>
|
|
(
|
|
<figureCitation box="[1288,1349,955,978]" captionStart="Fig" captionStartId="3.[809,848,806,829]" captionTargetBox="[809,1451,259,773]" captionTargetId="figure-583@3.[809,1451,259,773]" captionTargetPageId="3" captionText="Fig. 3. Southern Brazil, showing approximate geographical distribution (black circle) of Trichomycterus igobi." figureDoi="http://doi.org/10.5281/zenodo.5419573" httpUri="https://zenodo.org/record/5419573/files/figure.png" pageId="3">Fig. 3</figureCitation>
|
|
)
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection lastPageId="4" pageId="3" type="etymology">
|
|
<paragraph blockId="3.[809,1451,1019,1106]" pageId="3">
|
|
<emphasis bold="true" box="[809,938,1019,1042]" pageId="3">Etymology.</emphasis>
|
|
The species name
|
|
<taxonomicName box="[1134,1189,1019,1042]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="3" phylum="Chordata" rank="species" species="igobi">
|
|
<emphasis box="[1134,1189,1019,1042]" italics="true" pageId="3">igobi</emphasis>
|
|
</taxonomicName>
|
|
is based on a mythological character of the Tupi-Guarani Indian legend about the origin of the Iguaçu waterfalls.
|
|
</paragraph>
|
|
<paragraph blockId="3.[809,1451,1146,1201]" pageId="3">
|
|
<emphasis bold="true" box="[809,993,1146,1169]" pageId="3">Ecological data.</emphasis>
|
|
Specimens of
|
|
<taxonomicName box="[1158,1389,1146,1169]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="3" phylum="Chordata" rank="species" species="igobi">
|
|
<emphasis box="[1158,1389,1146,1169]" italics="true" pageId="3">Trichomycterus igobi</emphasis>
|
|
</taxonomicName>
|
|
were collected in the same general locality as
|
|
<emphasis box="[1257,1279,1178,1201]" italics="true" pageId="3">T.</emphasis>
|
|
sp. C in the rio
|
|
</paragraph>
|
|
<caption pageId="3" startId="3.[809,872,1259,1282]">
|
|
<paragraph blockId="3.[809,1451,1259,1346]" pageId="3">
|
|
<emphasis bold="true" box="[809,898,1259,1282]" pageId="3">Table 1.</emphasis>
|
|
Morphometric data for holotype and paratypes (except MPEG 13354) of
|
|
<taxonomicName box="[1043,1268,1291,1314]" class="Actinopterygii" family="Trichomycteridae" genus="Trichomycterus" kingdom="Animalia" order="Siluriformes" pageId="3" phylum="Chordata" rank="species" species="igobi">
|
|
<emphasis box="[1043,1268,1291,1314]" italics="true" pageId="3">Trichomycterus igobi</emphasis>
|
|
</taxonomicName>
|
|
(n = 10 including the holotype).
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph pageId="3">
|
|
<table box="[822,1445,1377,2044]" gridcols="3" gridrows="28" pageId="3">
|
|
<tr box="[822,1445,1377,1395]" gridrow="0" pageId="3">
|
|
<td box="[822,1320,1377,1395]" gridcol="0" gridrow="0" pageId="3">Holotype</td>
|
|
<td box="[1345,1445,1377,1395]" colspan="2" colspanRight="1" gridcol="1" gridrow="0" pageId="3">Range</td>
|
|
</tr>
|
|
<tr box="[822,1445,1401,1419]" gridrow="1" pageId="3">
|
|
<td box="[822,1320,1401,1419]" gridcol="0" gridrow="1" pageId="3">(mm)</td>
|
|
<td box="[1345,1445,1401,1419]" colspan="2" colspanRight="1" gridcol="1" gridrow="1" pageId="3">(n = 10)</td>
|
|
</tr>
|
|
<tr box="[822,1445,1426,1444]" gridrow="2" pageId="3">
|
|
<td box="[822,1320,1426,1444]" gridcol="0" gridrow="2" pageId="3">Standard length (mm) 90.1</td>
|
|
<td box="[1345,1384,1426,1444]" gridcol="1" gridrow="2" pageId="3">62.0</td>
|
|
<td box="[1406,1445,1426,1444]" gridcol="2" gridrow="2" pageId="3">90.1</td>
|
|
</tr>
|
|
<tr box="[822,1445,1450,1468]" gridrow="3" pageId="3">
|
|
<td box="[822,1445,1450,1468]" colspan="3" colspanRight="2" gridcol="0" gridrow="3" pageId="3">Percents of standart length</td>
|
|
</tr>
|
|
<tr box="[822,1445,1474,1492]" gridrow="4" pageId="3">
|
|
<td box="[822,1320,1474,1492]" gridcol="0" gridrow="4" pageId="3">Head length 23.4</td>
|
|
<td box="[1345,1384,1474,1492]" gridcol="1" gridrow="4" pageId="3">23.8</td>
|
|
<td box="[1406,1445,1474,1492]" gridcol="2" gridrow="4" pageId="3">26.8</td>
|
|
</tr>
|
|
<tr box="[822,1445,1498,1516]" gridrow="5" pageId="3">
|
|
<td box="[822,1320,1498,1516]" gridcol="0" gridrow="5" pageId="3">Predorsal length 61.2</td>
|
|
<td box="[1345,1384,1498,1516]" gridcol="1" gridrow="5" pageId="3">62.0</td>
|
|
<td box="[1406,1445,1498,1516]" gridcol="2" gridrow="5" pageId="3">67.9</td>
|
|
</tr>
|
|
<tr box="[822,1445,1522,1540]" gridrow="6" pageId="3">
|
|
<td box="[822,1320,1522,1540]" gridcol="0" gridrow="6" pageId="3">Prepelvic length 58.1</td>
|
|
<td box="[1345,1384,1522,1540]" gridcol="1" gridrow="6" pageId="3">60.3</td>
|
|
<td box="[1406,1445,1522,1540]" gridcol="2" gridrow="6" pageId="3">64.6</td>
|
|
</tr>
|
|
<tr box="[822,1445,1546,1564]" gridrow="7" pageId="3">
|
|
<td box="[822,1320,1546,1564]" gridcol="0" gridrow="7" pageId="3">Preanal length 70.0</td>
|
|
<td box="[1345,1384,1546,1564]" gridcol="1" gridrow="7" pageId="3">74.5</td>
|
|
<td box="[1406,1445,1546,1564]" gridcol="2" gridrow="7" pageId="3">77.7</td>
|
|
</tr>
|
|
<tr box="[822,1445,1570,1588]" gridrow="8" pageId="3">
|
|
<td box="[822,1320,1570,1588]" gridcol="0" gridrow="8" pageId="3">Scapular girdle width 19.9</td>
|
|
<td box="[1345,1384,1570,1588]" gridcol="1" gridrow="8" pageId="3">18.7</td>
|
|
<td box="[1406,1445,1570,1588]" gridcol="2" gridrow="8" pageId="3">22.6</td>
|
|
</tr>
|
|
<tr box="[822,1445,1594,1612]" gridrow="9" pageId="3">
|
|
<td box="[822,1320,1594,1612]" gridcol="0" gridrow="9" pageId="3">Trunk length 36.7</td>
|
|
<td box="[1345,1384,1594,1612]" gridcol="1" gridrow="9" pageId="3">37.6</td>
|
|
<td box="[1406,1445,1594,1612]" gridcol="2" gridrow="9" pageId="3">41.8</td>
|
|
</tr>
|
|
<tr box="[822,1445,1618,1636]" gridrow="10" pageId="3">
|
|
<td box="[822,1320,1618,1636]" gridcol="0" gridrow="10" pageId="3">Pectoral-fin length 14.7</td>
|
|
<td box="[1345,1384,1618,1636]" gridcol="1" gridrow="10" pageId="3">11.4</td>
|
|
<td box="[1406,1445,1618,1636]" gridcol="2" gridrow="10" pageId="3">16.6</td>
|
|
</tr>
|
|
<tr box="[822,1445,1642,1660]" gridrow="11" pageId="3">
|
|
<td box="[822,1320,1642,1660]" gridcol="0" gridrow="11" pageId="3">Pelvic-fin length 9.8</td>
|
|
<td box="[1345,1384,1642,1660]" gridcol="1" gridrow="11" pageId="3">8.7</td>
|
|
<td box="[1406,1445,1642,1660]" gridcol="2" gridrow="11" pageId="3">12.1</td>
|
|
</tr>
|
|
<tr box="[822,1445,1666,1684]" gridrow="12" pageId="3">
|
|
<td box="[822,1320,1666,1684]" gridcol="0" gridrow="12" pageId="3">Distance between pelvic-fin base and anus 6.8</td>
|
|
<td box="[1345,1384,1666,1684]" gridcol="1" gridrow="12" pageId="3">5.9</td>
|
|
<td box="[1406,1445,1666,1684]" gridcol="2" gridrow="12" pageId="3">10.9</td>
|
|
</tr>
|
|
<tr box="[822,1445,1690,1708]" gridrow="13" pageId="3">
|
|
<td box="[822,1320,1690,1708]" gridcol="0" gridrow="13" pageId="3">Caudal peduncle length 16.2</td>
|
|
<td box="[1345,1384,1690,1708]" gridcol="1" gridrow="13" pageId="3">15.4</td>
|
|
<td box="[1406,1445,1690,1708]" gridcol="2" gridrow="13" pageId="3">19.7</td>
|
|
</tr>
|
|
<tr box="[822,1445,1714,1732]" gridrow="14" pageId="3">
|
|
<td box="[822,1320,1714,1732]" gridcol="0" gridrow="14" pageId="3">Caudal peduncle depth 14.8</td>
|
|
<td box="[1345,1384,1714,1732]" gridcol="1" gridrow="14" pageId="3">16.0</td>
|
|
<td box="[1406,1445,1714,1732]" gridcol="2" gridrow="14" pageId="3">19.0</td>
|
|
</tr>
|
|
<tr box="[822,1445,1738,1756]" gridrow="15" pageId="3">
|
|
<td box="[822,1320,1738,1756]" gridcol="0" gridrow="15" pageId="3">Body depth 19.4</td>
|
|
<td box="[1345,1384,1738,1756]" gridcol="1" gridrow="15" pageId="3">17.2</td>
|
|
<td box="[1406,1445,1738,1756]" gridcol="2" gridrow="15" pageId="3">24.9</td>
|
|
</tr>
|
|
<tr box="[822,1445,1762,1780]" gridrow="16" pageId="3">
|
|
<td box="[822,1320,1762,1780]" gridcol="0" gridrow="16" pageId="3">Length of dorsal-fin base 10.7</td>
|
|
<td box="[1345,1384,1762,1780]" gridcol="1" gridrow="16" pageId="3">10.9</td>
|
|
<td box="[1406,1445,1762,1780]" gridcol="2" gridrow="16" pageId="3">13.2</td>
|
|
</tr>
|
|
<tr box="[822,1445,1786,1804]" gridrow="17" pageId="3">
|
|
<td box="[822,1320,1786,1804]" gridcol="0" gridrow="17" pageId="3">Length of anal-fin base 7.0</td>
|
|
<td box="[1345,1384,1786,1804]" gridcol="1" gridrow="17" pageId="3">6.8</td>
|
|
<td box="[1406,1445,1786,1804]" gridcol="2" gridrow="17" pageId="3">8.7</td>
|
|
</tr>
|
|
<tr box="[822,1445,1810,1828]" gridrow="18" pageId="3">
|
|
<td box="[822,1445,1810,1828]" colspan="3" colspanRight="2" gridcol="0" gridrow="18" pageId="3">Percents of head length</td>
|
|
</tr>
|
|
<tr box="[822,1445,1834,1852]" gridrow="19" pageId="3">
|
|
<td box="[822,1320,1834,1852]" gridcol="0" gridrow="19" pageId="3">Head width 95.3</td>
|
|
<td box="[1345,1384,1834,1852]" gridcol="1" gridrow="19" pageId="3">79.4</td>
|
|
<td box="[1406,1445,1834,1852]" gridcol="2" gridrow="19" pageId="3">95.3</td>
|
|
</tr>
|
|
<tr box="[822,1445,1858,1876]" gridrow="20" pageId="3">
|
|
<td box="[822,1320,1858,1876]" gridcol="0" gridrow="20" pageId="3">Nasal barbel length 34.6</td>
|
|
<td box="[1345,1384,1858,1876]" gridcol="1" gridrow="20" pageId="3">29.9</td>
|
|
<td box="[1406,1445,1858,1876]" gridcol="2" gridrow="20" pageId="3">40.9</td>
|
|
</tr>
|
|
<tr box="[822,1445,1882,1900]" gridrow="21" pageId="3">
|
|
<td box="[822,1320,1882,1900]" gridcol="0" gridrow="21" pageId="3">Maxillary barbel length 36.8</td>
|
|
<td box="[1345,1384,1882,1900]" gridcol="1" gridrow="21" pageId="3">28.0</td>
|
|
<td box="[1406,1445,1882,1900]" gridcol="2" gridrow="21" pageId="3">43.8</td>
|
|
</tr>
|
|
<tr box="[822,1445,1906,1924]" gridrow="22" pageId="3">
|
|
<td box="[822,1320,1906,1924]" gridcol="0" gridrow="22" pageId="3">Rictal barbel length 36.8</td>
|
|
<td box="[1345,1384,1906,1924]" gridcol="1" gridrow="22" pageId="3">28.0</td>
|
|
<td box="[1406,1445,1906,1924]" gridcol="2" gridrow="22" pageId="3">42.9</td>
|
|
</tr>
|
|
<tr box="[822,1445,1930,1948]" gridrow="23" pageId="3">
|
|
<td box="[822,1320,1930,1948]" gridcol="0" gridrow="23" pageId="3">Snout length 48.3</td>
|
|
<td box="[1345,1384,1930,1948]" gridcol="1" gridrow="23" pageId="3">39.2</td>
|
|
<td box="[1406,1445,1930,1948]" gridcol="2" gridrow="23" pageId="3">52.5</td>
|
|
</tr>
|
|
<tr box="[822,1445,1954,1972]" gridrow="24" pageId="3">
|
|
<td box="[822,1320,1954,1972]" gridcol="0" gridrow="24" pageId="3">Interorbital 29.9</td>
|
|
<td box="[1345,1384,1954,1972]" gridcol="1" gridrow="24" pageId="3">20.9</td>
|
|
<td box="[1406,1445,1954,1972]" gridcol="2" gridrow="24" pageId="3">29.9</td>
|
|
</tr>
|
|
<tr box="[822,1445,1978,1996]" gridrow="25" pageId="3">
|
|
<td box="[822,1320,1978,1996]" gridcol="0" gridrow="25" pageId="3">Mouth width 52.1</td>
|
|
<td box="[1345,1384,1978,1996]" gridcol="1" gridrow="25" pageId="3">43.3</td>
|
|
<td box="[1406,1445,1978,1996]" gridcol="2" gridrow="25" pageId="3">54.4</td>
|
|
</tr>
|
|
<tr box="[822,1445,2002,2020]" gridrow="26" pageId="3">
|
|
<td box="[822,1320,2002,2020]" gridcol="0" gridrow="26" pageId="3">Eye diameter 9.8</td>
|
|
<td box="[1345,1384,2002,2020]" gridcol="1" gridrow="26" pageId="3">9.0</td>
|
|
<td box="[1406,1445,2002,2020]" gridcol="2" gridrow="26" pageId="3">13.3</td>
|
|
</tr>
|
|
<tr box="[822,1445,2026,2044]" gridrow="27" pageId="3">
|
|
<td box="[822,1320,2026,2044]" gridcol="0" gridrow="27" pageId="3">Supra-orbital pore distance 6.8</td>
|
|
<td box="[1345,1384,2026,2044]" gridcol="1" gridrow="27" pageId="3">6.3</td>
|
|
<td box="[1406,1445,2026,2044]" gridcol="2" gridrow="27" pageId="3">10.8</td>
|
|
</tr>
|
|
</table>
|
|
</paragraph>
|
|
<paragraph blockId="4.[646,1459,182,205]" box="[646,1459,182,205]" pageId="4">
|
|
<emphasis box="[646,941,182,203]" italics="true" pageId="4">W. B. Wosiacki & M. de Pinna</emphasis>
|
|
21
|
|
</paragraph>
|
|
<paragraph blockId="4.[136,779,261,476]" pageId="4">
|
|
Jordão, and presumably occupy the same kind of fast water, rocky-substrate environment reported for that species (
|
|
<emphasis box="[752,779,293,316]" italics="true" pageId="4">cf.</emphasis>
|
|
Wosiacki & de Pinna, in press). The details of its microhabitat, however, are as yet unknown. The stomach of the cleared and stained specimen contained larvae of Diptera (Simulidae), Ephemeroptera, and Trichoptera, indicating benthic feeding habits.
|
|
</paragraph>
|
|
</subSubSection>
|
|
</treatment>
|
|
</document> |