treatments-xml/data/B4/2D/87/B42D87D6E14EFFE3FD3CBEBFFACA3F95.xml

<document id="ECB5767221DC483D35F58589AF778198" ID-DOI="10.1590/1982-0224-2023-0076" ID-ISSN="1982-0224" ID-Zenodo-Dep="13348880" ID-ZooBank="944B7F55-DAA4-4CD0-B436-8F1100D68947" IM.bibliography_requiresApprovalFor="GgImagineBatch" IM.illustrations_approvedBy="felipe" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="guilherme" IM.tables_requiresApprovalFor="GgImagineBatch" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="guilherme" checkinTime="1720672044888" checkinUser="felipe" docAuthor="Datovo, Alessio, Ochoa, Luz, Vita, George, Presti, Paulo, Ohara, William M. &amp; Pinna, Mario C. C. de" docDate="2023" docId="B42D87D6E14EFFE3FD3CBEBFFACA3F95" docLanguage="en" docName="NeotropIchthyol.21.3.e230076.pdf" docOrigin="Neotropical Ichthyology (e 230076) 21 (3)" docSource="http://dx.doi.org/10.1590/1982-0224-2023-0076" docStyle="DocumentStyle:FC0C3FD10650AF21F8DA93D98D275823.3:NeotropIchthyol.2020-.journal_article" docStyleId="FC0C3FD10650AF21F8DA93D98D275823" docStyleName="NeotropIchthyol.2020-.journal_article" docStyleVersion="3" docTitle="Rhinotridens chromocaudatus Datovo, Ochoa, Vita, Presti, Ohara &amp; Pinna, 2023, new species" docType="treatment" docVersion="4" lastPageNumber="15" masterDocId="4814FFAEE14BFFEDFFF0BE01FFFC3C73" masterDocTitle="A new genus and species of miniature tridentine catfish from the Amazon basin (Siluriformes: Trichomycteridae)" masterLastPageNumber="22" masterPageNumber="1" pageNumber="6" updateTime="1724157007912" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-4.0">
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<mods:title id="C5841EF3812B67DCCE889A9D9A58593E">A new genus and species of miniature tridentine catfish from the Amazon basin (Siluriformes: Trichomycteridae)</mods:title>
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<mods:namePart id="FAF1660745D958683E7B0943677FC100">Datovo, Alessio</mods:namePart>
<mods:affiliation id="E3663208764EC4DF04231E2728F9500B">Museu de Zoologia da Universidade de São Paulo (MZUSP); Av. Nazaré, 481, Ipiranga, 04263 - 000 São Paulo, SP, Brazil. (AD) adatovo @ usp. br (corresponding author), (GV) georgevita @ usp. br, (PP) ppresti @ usp. br, (MCCP) pinna @ ib. usp. br.</mods:affiliation>
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<mods:namePart id="CCF0ABF87BE9C3CED1E3CC29F312E9FB">Ochoa, Luz</mods:namePart>
<mods:affiliation id="C98C403B1F8DAB2FB5A208F073AF1CFE">Dirección Academica, Universidad Nacional de Colombia, Sede de La Paz; km</mods:affiliation>
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<mods:namePart id="D0C88945159E20D82C3873640258DEFA">Vita, George</mods:namePart>
<mods:affiliation id="C8FA082B2170BC962E6B5D6508ABC0EF">Museu de Zoologia da Universidade de São Paulo (MZUSP); Av. Nazaré, 481, Ipiranga, 04263 - 000 São Paulo, SP, Brazil. (AD) adatovo @ usp. br (corresponding author), (GV) georgevita @ usp. br, (PP) ppresti @ usp. br, (MCCP) pinna @ ib. usp. br.</mods:affiliation>
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<mods:affiliation id="031EB013F10740BE6664DB51F9E671CD">Museu de Zoologia da Universidade de São Paulo (MZUSP); Av. Nazaré, 481, Ipiranga, 04263 - 000 São Paulo, SP, Brazil. (AD) adatovo @ usp. br (corresponding author), (GV) georgevita @ usp. br, (PP) ppresti @ usp. br, (MCCP) pinna @ ib. usp. br.</mods:affiliation>
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<mods:namePart id="E2505523FB4A73CE8A82A34D5C07B34A">Ohara, William M.</mods:namePart>
<mods:affiliation id="5025DB3D9E69D8BA2AD16B782B64DF79">Universidade Federal do Amazonas, Conselho Universitário, Av. Rodrigo Otávio Japiim, 69077 - 000 Manaus, AM, Brazil. (WMO) ohara @ ufam. edu. br.</mods:affiliation>
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<mods:date id="04B75005A34558D4F43C519498E81FEA">2023</mods:date>
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<taxonomicName id="FB844D43E14EFFE8FD3CBEBFFBC13CA5" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[716,1085,190,214]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="chromocaudatus" status="sp. nov.">
<emphasis id="0EF0EAD2E14EFFE8FD3CBEBFFBC13CA5" bold="true" box="[716,1085,190,214]" pageId="5" pageNumber="6">Rhinotridens chromocaudatus</emphasis>
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(
<figureCitation id="A4BF2A45E14EFFE8FC9EBF52FC2A3D18" box="[878,982,339,363]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStart-4="FIGURE 5" captionStart-5="FIGURE 6" captionStart-6="FIGURE 7" captionStart-7="FIGURE 8" captionStart-8="FIGURE 9" captionStartId-0="3.[488,561,1836,1856]" captionStartId-1="4.[487,560,1350,1370]" captionStartId-2="8.[488,561,1276,1296]" captionStartId-3="9.[488,561,828,848]" captionStartId-4="10.[488,561,1238,1258]" captionStartId-5="11.[565,638,641,661]" captionStartId-6="11.[136,209,1388,1408]" captionStartId-7="12.[488,561,828,848]" captionStartId-8="12.[488,561,1798,1818]" captionTargetBox-0="[488,1459,1136,1814]" captionTargetBox-1="[487,1459,191,1328]" captionTargetBox-2="[488,1459,171,1255]" captionTargetBox-3="[488,1460,171,820]" captionTargetBox-4="[488,1459,189,1216]" captionTargetBox-5="[811,1147,235,601]" captionTargetBox-6="[565,1459,731,1889]" captionTargetBox-7="[488,1459,167,805]" captionTargetBox-8="[639,1318,992,1747]" captionTargetId-0="figure-229@3.[488,1459,1136,1814]" captionTargetId-1="figure-154@4.[487,1459,191,1328]" captionTargetId-2="figure-32@8.[488,1459,171,1255]" captionTargetId-3="figure-23@9.[488,1460,171,820]" captionTargetId-4="figure-33@10.[488,1459,189,1216]" captionTargetId-5="figure-24@11.[565,1459,206,621]" captionTargetId-6="figure-55@11.[565,1459,731,1889]" captionTargetId-7="figure-33@12.[488,1459,167,805]" captionTargetId-8="figure-80@12.[527,1420,955,1775]" captionTargetPageId-0="3" captionTargetPageId-1="4" captionTargetPageId-2="8" captionTargetPageId-3="9" captionTargetPageId-4="10" captionTargetPageId-5="11" captionTargetPageId-6="11" captionTargetPageId-7="12" captionTargetPageId-8="12" captionText-0="FIGURE 1. Rhinotridens chromocaudatus, new genus and species, holotype, MZUSP 128216, 17.57 mm SL. Brazil, Amazonas, rio Ipixuna, tributary of the rio Purus, rio Solimões basin. Scale bar = 2.0 mm." captionText-1="FIGURE 2 | Premaxilla and lower jaw of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Dorsal view; B. Ventral view; C. medial view, left side. Symphyseal teeth highlighted in yellow. Ac, angular complex; Dt, dentary; Dth, dentary teeth; Lt, labial teeth; Pmt, premaxillary teeth; Pmx, premaxilla. Scale bar = 0.3 mm." captionText-2="FIGURE 3 | Cranium, pectoral skeleton, and anterior portion of axial skeleton of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view. Ac, angular complex; AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Cl, cleithrum; Dt, dentary; Ep, epioccipital; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Le, lateral ethmoid; Me, mesethmoid; Mx, maxilla; Op, opercle; Osph, orbitosphenoid; Pop, preopercle; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptr, pectoral-fin rays; Ptscl, postemporosupracleithrum; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pt, pterotic; Pu, parurohyal; Qd, quadrate; Sph, sphenotic-prootic-pterosphenoid; Vh, ventral hypohyal; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." captionText-3="FIGURE 4 | Cranium of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; anterior view; arrow indicates right mesethmoid cornu. AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Dth, dentary teeth; FPV, first post-Weberian vertebrae; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Lt, labial teeth; Me, mesethmoid; Mx, maxilla; Op, opercle; Pop, preopercle; Psoc, parieto-supraoccipital; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pu, parurohyal; Sph, sphenotic-prootic-pterosphenoid; SPV, second post-Weberian vertebrae; Vh, ventral hypohyal. Scale bar = 0.25 mm." captionText-4="FIGURE 5 | Suspensorium and opercular series of Rhinotridens chromocaudatus, left side, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Lateral view; B. Medial view; arrow indicates distal process of hyomandibula. Hy, hyomandibular; Iop, interopercle; Op, opercle; Pop, preopercle; Qd, quadrate. Scale bar = 0.2 mm." captionText-5="FIGURE 6 | Pelvic girdle of Rhinotridens chromocaudatus, digital illustration of c&amp;s specimen, ventral view, paratype, MZUSP 128217, 16.72 mm SL. Bpt, basipterygium. Scale bar = 0.15 mm." captionText-6="FIGURE 7 | Neurocranium and associated structures of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view; C. Ventral view. Boc, basioccipital; Ep, epioccipital; Fr, frontal; Le, lateral ethmoid; Me, mesethmoid; Osph, orbitosphenoid; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptscl, postemporo-supracleithrum; Pro, prootic; Pt, pterotic; Sph, sphenoticprootic-pterosphenoid; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." captionText-7="FIGURE 8 | Hyoid arch of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL;A. Ventral view; B. Dorsal view; anterior to left. AC, anterior ceratohyal; Br, branchiostegal rays; PC, posterior ceratohyal; Pu, parurohyal; Vh, ventral hypohyal. Scale bar = 0.3 mm." captionText-8="FIGURE 9 | Gill arches of Rhinotridens chromocaudatus, digital illustration of c&amp;s specimen, dorsal view, paratype, MZUSP 128217,16.72 mm SL; right dorsal elements not shown. Bb1-4, basibranchials 1 to 4; Cb1-5, ceratobranchials 1 to 5; Eb1-4, epibranchials 1 to 4; Hb1-3, hypobranchials 1 to 3; Pb4, pharyngobranchial 4; Utp, upper pharyngeal tooth plate. Scale bar = 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.13348882" figureDoi-1="http://doi.org/10.5281/zenodo.13348884" figureDoi-2="http://doi.org/10.5281/zenodo.13348886" figureDoi-3="http://doi.org/10.5281/zenodo.13348888" figureDoi-4="http://doi.org/10.5281/zenodo.13348892" figureDoi-5="http://doi.org/10.5281/zenodo.13348894" figureDoi-6="http://doi.org/10.5281/zenodo.13348896" figureDoi-7="http://doi.org/10.5281/zenodo.13348898" figureDoi-8="http://doi.org/10.5281/zenodo.13348900" httpUri-0="https://zenodo.org/record/13348882/files/figure.png" httpUri-1="https://zenodo.org/record/13348884/files/figure.png" httpUri-2="https://zenodo.org/record/13348886/files/figure.png" httpUri-3="https://zenodo.org/record/13348888/files/figure.png" httpUri-4="https://zenodo.org/record/13348892/files/figure.png" httpUri-5="https://zenodo.org/record/13348894/files/figure.png" httpUri-6="https://zenodo.org/record/13348896/files/figure.png" httpUri-7="https://zenodo.org/record/13348898/files/figure.png" httpUri-8="https://zenodo.org/record/13348900/files/figure.png" pageId="5" pageNumber="6">Figs. 1–9</figureCitation>
; Tab. 1)
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.
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<specimenCode id="6C229EBBE14EFFE8FD7EBF9FFCAF3DC5" box="[654,851,414,438]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="5" pageNumber="6">MZUSP 128216</specimenCode>
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<location id="395B601BE14EFFE8FD7BBFC2FCD63DA8" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14EFFE8FD7BBFC2FCD63DA8" box="[651,810,451,475]" country="Brazil" county="Lago Comprido" latitude="-7.5102777" longLatPrecision="21" longitude="-63.33972" municipality="rio Ipixuna" name="rio Amazonas" pageId="5" pageNumber="6">rio Amazonas</location>
basin, 
<location id="395B601BE14EFFE8FC72BFC2FC123DA8" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14EFFE8FC72BFC2FC123DA8" box="[898,1006,451,475]" country="Brazil" county="Lago Comprido" latitude="-7.5102777" longLatPrecision="21" longitude="-63.33972" municipality="rio Ipixuna" name="rio Purus" pageId="5" pageNumber="6">rio Purus</location>
drainage, 
<collectingMunicipality id="DC5FACBAE14EFFE8FB9DBFC2FB0C3DA8" box="[1133,1264,451,475]" pageId="5" pageNumber="6">rio Ipixuna</collectingMunicipality>
, mouth of 
<collectingCounty id="D55A4E4CE14EFFE8FA8ABFC5FD9C3E73" pageId="5" pageNumber="6">Lago Comprido</collectingCounty>
, 
<geoCoordinate id="59B05007E14EFFE8FD9BBFE8FD143E72" box="[619,744,489,513]" degrees="07" direction="south" minutes="30" orientation="latitude" pageId="5" pageNumber="6" precision="15" seconds="37" value="-7.5102777">07°30’37”S</geoCoordinate>
<geoCoordinate id="59B05007E14EFFE8FD1FBFE9FC833E73" box="[751,895,488,512]" degrees="63" direction="west" minutes="20" orientation="longitude" pageId="5" pageNumber="6" precision="15" seconds="23" value="-63.33972">63°20’23”W</geoCoordinate>
, 
<date id="483A1000E14EFFE8FC7BBFE8FBF03E72" box="[907,1036,488,513]" pageId="5" pageNumber="6" value="2012-07-21">
<collectingDate id="587EE9E8E14EFFE8FC7BBFE8FBF03E72" box="[907,1036,488,513]" pageId="5" pageNumber="6" value="2012-07-21">21 Jul 2012</collectingDate>
</date>
, 
<collectorName id="91715316E14EFFE8FBE7BFE8FB443E73" box="[1047,1208,488,512]" pageId="5" pageNumber="6">W. M. Ohara.</collectorName>
</materialsCitation>
</paragraph>
<paragraph id="3C3B36C0E14EFFE8FDF6BC32FCE83F23" blockId="5.[486,1461,563,849]" pageId="5" pageNumber="6">
<materialsCitation id="8CEC3C9DE14EFFE8FDF6BC32FCCE3EC8" collectingDate="2007-11-14" collectionCode="INPA" collectorName="Aiapua" country="Brazil" county="Reserva de Desenvolvimento Sustentavel Piagacu Purus" latitude="-4.4280553" location="Amazonas State" longLatPrecision="21" longitude="-62.134724" municipality="Itabocao" pageId="5" pageNumber="6" specimenCode="INPA 28592, 25" specimenCount="1" typeStatus="paratype">
<emphasis id="0EF0EAD2E14EFFE8FDF6BC32FD7C3E38" bold="true" box="[518,640,563,587]" pageId="5" pageNumber="6">
<typeStatus id="E33F8862E14EFFE8FDF6BC32FD873E38" box="[518,635,563,587]" pageId="5" pageNumber="6" type="paratype">Paratypes</typeStatus>
.
</emphasis>
<specimenCode id="6C229EBBE14EFFE8FD7CBC32FCDF3E38" box="[652,803,563,587]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="5" pageNumber="6">INPA 28592</specimenCode>
, 
<specimenCode id="6C229EBBE14EFFE8FCC4BC32FCB33E38" box="[820,847,563,587]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="5" pageNumber="6">25</specimenCode>
eth (
<quantity id="FB7C9B25E14EFFE8FC65BC32FBA53E38" box="[917,1113,563,587]" metricMagnitude="-2" metricUnit="m" metricValue="1.576" metricValueMax="1.687" metricValueMin="1.465" pageId="5" pageNumber="6" unit="mm" value="15.76" valueMax="16.87" valueMin="14.65">14.65–16.87 mm</quantity>
SL), 
<collectingCountry id="44937650E14EFFE8FB51BC32FB193E38" box="[1185,1253,563,587]" name="Brazil" pageId="5" pageNumber="6">Brazil</collectingCountry>
, 
<location id="395B601BE14EFFE8FB06BC32FA533E38" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14EFFE8FB06BC32FA533E38" box="[1270,1455,563,587]" country="Brazil" county="Reserva de Desenvolvimento Sustentavel Piagacu Purus" latitude="-4.4280553" longLatPrecision="21" longitude="-62.134724" municipality="Itabocao" name="Amazonas State" pageId="5" pageNumber="6">Amazonas State</location>
, 
<location id="395B601BE14EFFE8FE18BC59FD313E03" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14EFFE8FE18BC59FD313E03" box="[488,717,600,624]" country="Brazil" county="Reserva de Desenvolvimento Sustentavel Piagacu Purus" latitude="-4.4280553" longLatPrecision="21" longitude="-62.134724" municipality="Itabocao" name="Beruri Municipality" pageId="5" pageNumber="6">Beruri Municipality</location>
, 
<location id="395B601BE14EFFE8FD2CBC59FC853E02" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14EFFE8FD2CBC59FC853E02" box="[732,889,600,625]" country="Brazil" county="Reserva de Desenvolvimento Sustentavel Piagacu Purus" latitude="-4.4280553" longLatPrecision="21" longitude="-62.134724" municipality="Itabocao" name="rio Amazonas" pageId="5" pageNumber="6">rio Amazonas</location>
basin, 
<location id="395B601BE14EFFE8FC3FBC59FBC53E03" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14EFFE8FC3FBC59FBC53E03" box="[975,1081,600,624]" country="Brazil" county="Reserva de Desenvolvimento Sustentavel Piagacu Purus" latitude="-4.4280553" longLatPrecision="21" longitude="-62.134724" municipality="Itabocao" name="rio Purus" pageId="5" pageNumber="6">rio Purus</location>
drainage, igarapé 
<collectingMunicipality id="DC5FACBAE14EFFE8FAE2BC59FA893E03" box="[1298,1397,600,624]" pageId="5" pageNumber="6">Itabocão</collectingMunicipality>
, lago 
<collectorName id="91715316E14EFFE8FE18BC7FFDC53EE5" box="[488,569,638,662]" pageId="5" pageNumber="6">Aiapuá</collectorName>
, 
<collectingCounty id="D55A4E4CE14EFFE8FDB7BC7FFB343EE6" box="[583,1224,638,662]" pageId="5" pageNumber="6">Reserva de Desenvolvimento Sustentável Piagaçu Purus</collectingCounty>
, approx. 
<geoCoordinate id="59B05007E14EFFE8FAC6BC7FFA4F3EE5" box="[1334,1459,638,662]" degrees="04" direction="south" minutes="25" orientation="latitude" pageId="5" pageNumber="6" precision="15" seconds="41" value="-4.4280553">04°25’41”S</geoCoordinate>
<geoCoordinate id="59B05007E14EFFE8FE18BCA2FD8B3EC8" box="[488,631,675,699]" degrees="62" direction="west" minutes="08" orientation="longitude" pageId="5" pageNumber="6" precision="15" seconds="05" value="-62.134724">62°08’05”W</geoCoordinate>
, 
<date id="483A1000E14EFFE8FD72BCA2FCE93EC8" box="[642,789,675,699]" pageId="5" pageNumber="6" value="2007-11-14">
<collectingDate id="587EE9E8E14EFFE8FD72BCA2FCE93EC8" box="[642,789,675,699]" pageId="5" pageNumber="6" value="2007-11-14">14 Nov 2007</collectingDate>
</date>
, L
</materialsCitation>
. 
<materialsCitation id="8CEC3C9DE14EFFE8FCCCBCA5FA973EC8" box="[828,1387,675,699]" collectionCode="R" collectorName="Py-Daniel, E &amp; Ferreira, F &amp; Rossoni &amp; Galluch" country="Brazil" pageId="5" pageNumber="6" specimenCount="1" typeStatus="paratype">
<collectionCode id="5A95AE05E14EFFE8FCCCBCA5FCAE3EC8" box="[828,850,676,699]" country="Chile" name="Departamento de Geologia, Universidad de Chile" pageId="5" pageNumber="6">R</collectionCode>
. 
<collectorName id="91715316E14EFFE8FCABBCA2FC0C3EC8" box="[859,1008,675,699]" pageId="5" pageNumber="6">Py-Daniel, E</collectorName>
. 
<collectorName id="91715316E14EFFE8FC0ABCA2FB8C3EC8" box="[1018,1136,675,699]" pageId="5" pageNumber="6">Ferreira, F</collectorName>
. 
<collectorName id="91715316E14EFFE8FB8ABCA2FB2E3EC8" box="[1146,1234,675,699]" pageId="5" pageNumber="6">Rossoni</collectorName>
&amp; A. 
<collectorName id="91715316E14EFFE8FAE1BCA2FA973EC8" box="[1297,1387,675,699]" pageId="5" pageNumber="6">Galluch</collectorName>
</materialsCitation>
; 
<materialsCitation id="8CEC3C9DE14EFFE8FA86BCA2FC3A3E93" collectionCode="MNRJ" country="Brazil" pageId="5" pageNumber="6" specimenCode="MCP 55013, 6" specimenCount="1" typeStatus="paratype">
<specimenCode id="6C229EBBE14EFFE8FA86BCA2FDD13E93" collectionCode="MCP" country="Brazil" httpUri="http://grbio.org/cool/bqgs-f9q8" name="Pontificia Universidade Catolica do Rio Grande do Sul" pageId="5" pageNumber="6">MCP 55013</specimenCode>
, 
<specimenCode id="6C229EBBE14EFFE8FDC9BCC9FDBB3E93" box="[569,583,712,736]" collectionCode="MCP" country="Brazil" httpUri="http://grbio.org/cool/bqgs-f9q8" name="Pontificia Universidade Catolica do Rio Grande do Sul" pageId="5" pageNumber="6">6</specimenCode>
eth (
<quantity id="FB7C9B25E14EFFE8FD71BCC9FCC33E93" box="[641,831,712,736]" metricMagnitude="-2" metricUnit="m" metricValue="1.5935000000000001" metricValueMax="1.6480000000000001" metricValueMin="1.5390000000000001" pageId="5" pageNumber="6" unit="mm" value="15.935" valueMax="16.48" valueMin="15.39">15.39–16.48 mm</quantity>
SL); 
<collectionCode id="5A95AE05E14EFFE8FC8BBCC8FC3A3E93" box="[891,966,713,736]" country="Brazil" httpUri="http://grbio.org/cool/zi1i-a0b5" name="Museu Nacional/Universidade Federal de Rio de Janeiro" pageId="5" pageNumber="6">MNRJ</collectionCode>
</materialsCitation>
<materialsCitation id="8CEC3C9DE14EFFE8FC3EBCC9FA4D3E92" box="[974,1457,712,737]" collectionCode="MPEG" country="Brazil" pageId="5" pageNumber="6" specimenCode="6" specimenCount="1" typeStatus="paratype">
54171, 
<specimenCode id="6C229EBBE14EFFE8FBD1BCC9FBD33E93" box="[1057,1071,712,736]" collectionCode="MNRJ" country="Brazil" httpUri="http://grbio.org/cool/zi1i-a0b5" name="Museu Nacional/Universidade Federal de Rio de Janeiro" pageId="5" pageNumber="6">6</specimenCode>
eth (
<quantity id="FB7C9B25E14EFFE8FB98BCC9FADB3E93" box="[1128,1319,712,736]" metricMagnitude="-2" metricUnit="m" metricValue="1.616" metricValueMax="1.6329999999999998" metricValueMin="1.599" pageId="5" pageNumber="6" unit="mm" value="16.16" valueMax="16.33" valueMin="15.99">15.99–16.33 mm</quantity>
SL); 
<collectionCode id="5A95AE05E14EFFE8FA93BCC8FA4D3E92" box="[1379,1457,713,737]" country="Brazil" httpUri="http://grbio.org/cool/90vz-swjg" name="Museu Paraense Emilio Goeldi" pageId="5" pageNumber="6">MPEG</collectionCode>
</materialsCitation>
<materialsCitation id="8CEC3C9DE14EFFE8FE18BCEFFC183F75" box="[488,996,750,774]" collectionCode="MZUSP" country="Brazil" pageId="5" pageNumber="6" specimenCode="6" specimenCount="1" typeStatus="paratype">
39635, 
<specimenCode id="6C229EBBE14EFFE8FDCCBCEFFDB63F75" box="[572,586,750,774]" collectionCode="MPEG" country="Brazil" httpUri="http://grbio.org/cool/90vz-swjg" name="Museu Paraense Emilio Goeldi" pageId="5" pageNumber="6">6</specimenCode>
eth (
<quantity id="FB7C9B25E14EFFE8FD76BCEFFCBA3F76" box="[646,838,750,774]" metricMagnitude="-2" metricUnit="m" metricValue="1.6375" metricValueMax="1.716" metricValueMin="1.559" pageId="5" pageNumber="6" unit="mm" value="16.375" valueMax="17.16" valueMin="15.59">15.59–17.16 mm</quantity>
SL); 
<collectionCode id="5A95AE05E14EFFE8FC75BCEFFC183F75" box="[901,996,750,774]" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="5" pageNumber="6">MZUSP</collectionCode>
</materialsCitation>
<materialsCitation id="8CEC3C9DE14EFFE8FC1DBCEFFBB63F58" collectionCode="UFRO-ICT" country="Brazil" pageId="5" pageNumber="6" specimenCode="19" specimenCount="1" typeStatus="paratype">
128217, 
<specimenCode id="6C229EBBE14EFFE8FBBFBCEFFB963F75" box="[1103,1130,750,774]" collectionCode="MZUSP" country="Brazil" httpUri="http://grbio.org/cool/6yx0-3nm7" name="Museu de Zoologia da Universidade de Sao Paulo" pageId="5" pageNumber="6">19</specimenCode>
eth (
<quantity id="FB7C9B25E14EFFE8FB57BCEFFA9B3F76" box="[1191,1383,750,774]" metricMagnitude="-2" metricUnit="m" metricValue="1.6789999999999998" metricValueMax="1.748" metricValueMin="1.61" pageId="5" pageNumber="6" unit="mm" value="16.79" valueMax="17.48" valueMin="16.1">16.10–17.48 mm</quantity>
SL), 1 µct (
<quantity id="FB7C9B25E14EFFE8FDEBBD12FD713F58" box="[539,653,787,811]" metricMagnitude="-2" metricUnit="m" metricValue="1.637" pageId="5" pageNumber="6" unit="mm" value="16.37">16.37 mm</quantity>
SL), 1 c&amp;s (
<quantity id="FB7C9B25E14EFFE8FCE2BD12FC793F58" box="[786,901,787,811]" metricMagnitude="-2" metricUnit="m" metricValue="1.672" pageId="5" pageNumber="6" unit="mm" value="16.72">16.72 mm</quantity>
SL); 
<collectionCode id="5A95AE05E14EFFE8FC4FBD12FBB63F58" box="[959,1098,787,811]" pageId="5" pageNumber="6">UFRO-ICT</collectionCode>
</materialsCitation>
<materialsCitation id="8CEC3C9DE14EFFE8FBA1BD12FCED3F23" collectingDate="2012-07-21" collectionCode="UFRO-ICT" collectorName="W. M. Ohara." country="Brazil" county="Lago Comprido" latitude="-7.5102777" location="Amazonas State" longLatPrecision="21" longitude="-63.33972" municipality="rio Ipixuna" pageId="5" pageNumber="6" specimenCode="20" specimenCount="1" typeStatus="paratype">
15431, 
<specimenCode id="6C229EBBE14EFFE8FB53BD12FB423F58" box="[1187,1214,787,811]" collectionCode="UFRO-ICT" pageId="5" pageNumber="6">20</specimenCode>
eth (
<quantity id="FB7C9B25E14EFFE8FB06BD12FA493F58" box="[1270,1461,787,811]" metricMagnitude="-2" metricUnit="m" metricValue="1.5855" metricValueMax="1.64" metricValueMin="1.531" pageId="5" pageNumber="6" unit="mm" value="15.855" valueMax="16.4" valueMin="15.31">15.31–16.40 mm</quantity>
SL), same data as holotype
</materialsCitation>
.
</paragraph>
<paragraph id="3C3B36C0E14EFFE8FCE5BDBAFA9A3B24" pageId="5" pageNumber="6">
<table id="4E84C460E14E0012FF60BDBBFA9A3B24" box="[144,1382,954,1879]" gridcols="5" gridrows="25" pageId="5" pageNumber="6">
<tr id="82B43482E14E0012FF60BDBBFA9A3FBF" box="[144,1382,954,972]" gridrow="0" pageId="5" pageNumber="6" rowspan-0="1">
<th id="C1655DFEE14E0012FCE5BDBBFC973FBF" box="[789,875,954,972]" gridcol="1" gridrow="0" pageId="5" pageNumber="6">
<emphasis id="0EF0EAD2E14EFFE8FCE5BDBAFC973FB8" bold="true" box="[789,875,955,971]" pageId="5" pageNumber="6">Holotype</emphasis>
</th>
<th id="C1655DFEE14E0012FC4FBDBBFBDB3FBF" box="[959,1063,954,972]" gridcol="2" gridrow="0" pageId="5" pageNumber="6">
<emphasis id="0EF0EAD2E14EFFE8FC26BDBAFBEC3FB8" bold="true" box="[982,1040,955,971]" pageId="5" pageNumber="6">Range</emphasis>
</th>
<th id="C1655DFEE14E0012FB7CBDBBFB3C3FBF" box="[1164,1216,954,972]" gridcol="3" gridrow="0" pageId="5" pageNumber="6">
<emphasis id="0EF0EAD2E14EFFE8FB7CBDBAFB3C3FB8" bold="true" box="[1164,1216,955,971]" pageId="5" pageNumber="6">Mean</emphasis>
</th>
<th id="C1655DFEE14E0012FABCBDBBFA9A3FBF" box="[1356,1382,954,972]" gridcol="4" gridrow="0" pageId="5" pageNumber="6">
<emphasis id="0EF0EAD2E14EFFE8FABDBDBBFA9A3FBF" bold="true" box="[1357,1382,954,972]" pageId="5" pageNumber="6">SD</emphasis>
</th>
</tr>
<tr id="82B43482E14E0012FF60BDE1FA9A3F81" box="[144,1382,992,1010]" gridrow="1" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BDE1FD333F81" box="[144,719,992,1010]" gridcol="0" gridrow="1" pageId="5" pageNumber="6">Standard length (mm)</th>
<td id="C1655DFEE14E0012FCE5BDE1FC973F81" box="[789,875,992,1010]" gridcol="1" gridrow="1" pageId="5" pageNumber="6">17.57</td>
<td id="C1655DFEE14E0012FC4FBDE1FBDB3F81" box="[959,1063,992,1010]" gridcol="2" gridrow="1" pageId="5" pageNumber="6">16.10–17.57</td>
<td id="C1655DFEE14E0012FB7CBDE1FB3C3F81" box="[1164,1216,992,1010]" gridcol="3" gridrow="1" pageId="5" pageNumber="6">–</td>
<td id="C1655DFEE14E0012FABCBDE1FA9A3F81" box="[1356,1382,992,1010]" gridcol="4" gridrow="1" pageId="5" pageNumber="6">–</td>
</tr>
<tr id="82B43482E14E0012FF60BA04FA9A3864" box="[144,1382,1029,1047]" gridrow="2" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BA04FA9A3864" box="[144,1382,1029,1047]" colspan="5" colspanRight="4" gridcol="0" gridrow="2" pageId="5" pageNumber="6">
<emphasis id="0EF0EAD2E14EFFE8FF60BA07FE503865" bold="true" box="[144,428,1029,1047]" pageId="5" pageNumber="6">Percentage of standard length</emphasis>
</th>
</tr>
<tr id="82B43482E14E0012FF60BA2AFA9A384E" box="[144,1382,1067,1085]" gridrow="3" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BA2AFD33384E" box="[144,719,1067,1085]" gridcol="0" gridrow="3" pageId="5" pageNumber="6">Body depth</th>
<td id="C1655DFEE14E0012FCE5BA2AFC97384E" box="[789,875,1067,1085]" gridcol="1" gridrow="3" pageId="5" pageNumber="6">10.66</td>
<td id="C1655DFEE14E0012FC4FBA2AFBDB384E" box="[959,1063,1067,1085]" gridcol="2" gridrow="3" pageId="5" pageNumber="6">9.67–12.11</td>
<td id="C1655DFEE14E0012FB7CBA2AFB3C384E" box="[1164,1216,1067,1085]" gridcol="3" gridrow="3" pageId="5" pageNumber="6">10.97</td>
<td id="C1655DFEE14E0012FABCBA2AFA9A384E" box="[1356,1382,1067,1085]" gridcol="4" gridrow="3" pageId="5" pageNumber="6">0.7</td>
</tr>
<tr id="82B43482E14E0012FF60BA50FA9A3810" box="[144,1382,1105,1123]" gridrow="4" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BA50FD333810" box="[144,719,1105,1123]" gridcol="0" gridrow="4" pageId="5" pageNumber="6">Caudal peduncle length</th>
<td id="C1655DFEE14E0012FCE5BA50FC973810" box="[789,875,1105,1123]" gridcol="1" gridrow="4" pageId="5" pageNumber="6">13.75</td>
<td id="C1655DFEE14E0012FC4FBA50FBDB3810" box="[959,1063,1105,1123]" gridcol="2" gridrow="4" pageId="5" pageNumber="6">7.90–15.38</td>
<td id="C1655DFEE14E0012FB7CBA50FB3C3810" box="[1164,1216,1105,1123]" gridcol="3" gridrow="4" pageId="5" pageNumber="6">12.38</td>
<td id="C1655DFEE14E0012FABCBA50FA9A3810" box="[1356,1382,1105,1123]" gridcol="4" gridrow="4" pageId="5" pageNumber="6">2.3</td>
</tr>
<tr id="82B43482E14E0012FF60BA76FA9A38FA" box="[144,1382,1143,1161]" gridrow="5" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BA76FD3338FA" box="[144,719,1143,1161]" gridcol="0" gridrow="5" pageId="5" pageNumber="6">Caudal peduncle depth</th>
<td id="C1655DFEE14E0012FCE5BA76FC9738FA" box="[789,875,1143,1161]" gridcol="1" gridrow="5" pageId="5" pageNumber="6">6.26</td>
<td id="C1655DFEE14E0012FC4FBA76FBDB38FA" box="[959,1063,1143,1161]" gridcol="2" gridrow="5" pageId="5" pageNumber="6">5.63–7.49</td>
<td id="C1655DFEE14E0012FB7CBA76FB3C38FA" box="[1164,1216,1143,1161]" gridcol="3" gridrow="5" pageId="5" pageNumber="6">6.51</td>
<td id="C1655DFEE14E0012FABCBA76FA9A38FA" box="[1356,1382,1143,1161]" gridcol="4" gridrow="5" pageId="5" pageNumber="6">0.4</td>
</tr>
<tr id="82B43482E14E0012FF60BA9CFA9A38DC" box="[144,1382,1181,1199]" gridrow="6" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BA9CFD3338DC" box="[144,719,1181,1199]" gridcol="0" gridrow="6" pageId="5" pageNumber="6">Predorsal length</th>
<td id="C1655DFEE14E0012FCE5BA9CFC9738DC" box="[789,875,1181,1199]" gridcol="1" gridrow="6" pageId="5" pageNumber="6">68.43</td>
<td id="C1655DFEE14E0012FC4FBA9CFBDB38DC" box="[959,1063,1181,1199]" gridcol="2" gridrow="6" pageId="5" pageNumber="6">66.79–70.22</td>
<td id="C1655DFEE14E0012FB7CBA9CFB3C38DC" box="[1164,1216,1181,1199]" gridcol="3" gridrow="6" pageId="5" pageNumber="6">68.68</td>
<td id="C1655DFEE14E0012FABCBA9CFA9A38DC" box="[1356,1382,1181,1199]" gridcol="4" gridrow="6" pageId="5" pageNumber="6">1.0</td>
</tr>
<tr id="82B43482E14E0012FF60BAC3FA9A38A7" box="[144,1382,1218,1236]" gridrow="7" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BAC3FD3338A7" box="[144,719,1218,1236]" gridcol="0" gridrow="7" pageId="5" pageNumber="6">Preanal length</th>
<td id="C1655DFEE14E0012FCE5BAC3FC9738A7" box="[789,875,1218,1236]" gridcol="1" gridrow="7" pageId="5" pageNumber="6">61.66</td>
<td id="C1655DFEE14E0012FC4FBAC3FBDB38A7" box="[959,1063,1218,1236]" gridcol="2" gridrow="7" pageId="5" pageNumber="6">59.44–71.81</td>
<td id="C1655DFEE14E0012FB7CBAC3FB3C38A7" box="[1164,1216,1218,1236]" gridcol="3" gridrow="7" pageId="5" pageNumber="6">62.62</td>
<td id="C1655DFEE14E0012FABCBAC3FA9A38A7" box="[1356,1382,1218,1236]" gridcol="4" gridrow="7" pageId="5" pageNumber="6">3.5</td>
</tr>
<tr id="82B43482E14E0012FF60BAE9FA9A3889" box="[144,1382,1256,1274]" gridrow="8" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BAE9FD333889" box="[144,719,1256,1274]" gridcol="0" gridrow="8" pageId="5" pageNumber="6">Dorsal-fin base length</th>
<td id="C1655DFEE14E0012FCE5BAE9FC973889" box="[789,875,1256,1274]" gridcol="1" gridrow="8" pageId="5" pageNumber="6">8.46</td>
<td id="C1655DFEE14E0012FC4FBAE9FBDB3889" box="[959,1063,1256,1274]" gridcol="2" gridrow="8" pageId="5" pageNumber="6">7.67–11.15</td>
<td id="C1655DFEE14E0012FB7CBAE9FB3C3889" box="[1164,1216,1256,1274]" gridcol="3" gridrow="8" pageId="5" pageNumber="6">9.04</td>
<td id="C1655DFEE14E0012FABCBAE9FA9A3889" box="[1356,1382,1256,1274]" gridcol="4" gridrow="8" pageId="5" pageNumber="6">1.0</td>
</tr>
<tr id="82B43482E14E0012FF60BB0FFA9A3953" box="[144,1382,1294,1312]" gridrow="9" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BB0FFD333953" box="[144,719,1294,1312]" gridcol="0" gridrow="9" pageId="5" pageNumber="6">Anal-fin base length</th>
<td id="C1655DFEE14E0012FCE5BB0FFC973953" box="[789,875,1294,1312]" gridcol="1" gridrow="9" pageId="5" pageNumber="6">20.17</td>
<td id="C1655DFEE14E0012FC4FBB0FFBDB3953" box="[959,1063,1294,1312]" gridcol="2" gridrow="9" pageId="5" pageNumber="6">20.17–25.59</td>
<td id="C1655DFEE14E0012FB7CBB0FFB3C3953" box="[1164,1216,1294,1312]" gridcol="3" gridrow="9" pageId="5" pageNumber="6">22.39</td>
<td id="C1655DFEE14E0012FABCBB0FFA9A3953" box="[1356,1382,1294,1312]" gridcol="4" gridrow="9" pageId="5" pageNumber="6">1.6</td>
</tr>
<tr id="82B43482E14E0012FF60BB35FA9A3935" box="[144,1382,1332,1350]" gridrow="10" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BB35FD333935" box="[144,719,1332,1350]" gridcol="0" gridrow="10" pageId="5" pageNumber="6">Distance between dorsal-fin origin and middle of caudal-fin base</th>
<td id="C1655DFEE14E0012FCE5BB35FC973935" box="[789,875,1332,1350]" gridcol="1" gridrow="10" pageId="5" pageNumber="6">32.48</td>
<td id="C1655DFEE14E0012FC4FBB35FBDB3935" box="[959,1063,1332,1350]" gridcol="2" gridrow="10" pageId="5" pageNumber="6">29.33–35.96</td>
<td id="C1655DFEE14E0012FB7CBB35FB3C3935" box="[1164,1216,1332,1350]" gridcol="3" gridrow="10" pageId="5" pageNumber="6">33.08</td>
<td id="C1655DFEE14E0012FABCBB35FA9A3935" box="[1356,1382,1332,1350]" gridcol="4" gridrow="10" pageId="5" pageNumber="6">1.7</td>
</tr>
<tr id="82B43482E14E0012FF60BB5BFA9A391F" box="[144,1382,1370,1388]" gridrow="11" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BB5BFD33391F" box="[144,719,1370,1388]" gridcol="0" gridrow="11" pageId="5" pageNumber="6">Distance between anal-fin origin and middle caudal-fin base</th>
<td id="C1655DFEE14E0012FCE5BB5BFC97391F" box="[789,875,1370,1388]" gridcol="1" gridrow="11" pageId="5" pageNumber="6">38.55</td>
<td id="C1655DFEE14E0012FC4FBB5BFBDB391F" box="[959,1063,1370,1388]" gridcol="2" gridrow="11" pageId="5" pageNumber="6">34.31–40.95</td>
<td id="C1655DFEE14E0012FB7CBB5BFB3C391F" box="[1164,1216,1370,1388]" gridcol="3" gridrow="11" pageId="5" pageNumber="6">38.84</td>
<td id="C1655DFEE14E0012FABCBB5BFA9A391F" box="[1356,1382,1370,1388]" gridcol="4" gridrow="11" pageId="5" pageNumber="6">1.9</td>
</tr>
<tr id="82B43482E14E0012FF60BB7EFA9A39E2" box="[144,1382,1407,1425]" gridrow="12" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BB7EFD3339E2" box="[144,719,1407,1425]" gridcol="0" gridrow="12" pageId="5" pageNumber="6">Pectoral girdle width</th>
<td id="C1655DFEE14E0012FCE5BB7EFC9739E2" box="[789,875,1407,1425]" gridcol="1" gridrow="12" pageId="5" pageNumber="6">10.87</td>
<td id="C1655DFEE14E0012FC4FBB7EFBDB39E2" box="[959,1063,1407,1425]" gridcol="2" gridrow="12" pageId="5" pageNumber="6">9.71–11.80</td>
<td id="C1655DFEE14E0012FB7CBB7EFB3C39E2" box="[1164,1216,1407,1425]" gridcol="3" gridrow="12" pageId="5" pageNumber="6">10.88</td>
<td id="C1655DFEE14E0012FABCBB7EFA9A39E2" box="[1356,1382,1407,1425]" gridcol="4" gridrow="12" pageId="5" pageNumber="6">0.6</td>
</tr>
<tr id="82B43482E14E0012FF60BBA4FA9A39C4" box="[144,1382,1445,1463]" gridrow="13" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BBA4FD3339C4" box="[144,719,1445,1463]" gridcol="0" gridrow="13" pageId="5" pageNumber="6">Pectoral fin length</th>
<td id="C1655DFEE14E0012FCE5BBA4FC9739C4" box="[789,875,1445,1463]" gridcol="1" gridrow="13" pageId="5" pageNumber="6">8.67</td>
<td id="C1655DFEE14E0012FC4FBBA4FBDB39C4" box="[959,1063,1445,1463]" gridcol="2" gridrow="13" pageId="5" pageNumber="6">8.17–10.33</td>
<td id="C1655DFEE14E0012FB7CBBA4FB3C39C4" box="[1164,1216,1445,1463]" gridcol="3" gridrow="13" pageId="5" pageNumber="6">9.30</td>
<td id="C1655DFEE14E0012FABCBBA4FA9A39C4" box="[1356,1382,1445,1463]" gridcol="4" gridrow="13" pageId="5" pageNumber="6">0.7</td>
</tr>
<tr id="82B43482E14E0012FF60BBCAFA9A39AE" box="[144,1382,1483,1501]" gridrow="14" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BBCAFD3339AE" box="[144,719,1483,1501]" gridcol="0" gridrow="14" pageId="5" pageNumber="6">Prepelvic length</th>
<td id="C1655DFEE14E0012FCE5BBCAFC9739AE" box="[789,875,1483,1501]" gridcol="1" gridrow="14" pageId="5" pageNumber="6">47.20</td>
<td id="C1655DFEE14E0012FC4FBBCAFBDB39AE" box="[959,1063,1483,1501]" gridcol="2" gridrow="14" pageId="5" pageNumber="6">42.07–49.92</td>
<td id="C1655DFEE14E0012FB7CBBCAFB3C39AE" box="[1164,1216,1483,1501]" gridcol="3" gridrow="14" pageId="5" pageNumber="6">46.35</td>
<td id="C1655DFEE14E0012FABCBBCAFA9A39AE" box="[1356,1382,1483,1501]" gridcol="4" gridrow="14" pageId="5" pageNumber="6">2.4</td>
</tr>
<tr id="82B43482E14E0012FF60BBF0FA9A3A70" box="[144,1382,1521,1539]" gridrow="15" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60BBF0FD333A70" box="[144,719,1521,1539]" gridcol="0" gridrow="15" pageId="5" pageNumber="6">Head length</th>
<td id="C1655DFEE14E0012FCE5BBF0FC973A70" box="[789,875,1521,1539]" gridcol="1" gridrow="15" pageId="5" pageNumber="6">18.80</td>
<td id="C1655DFEE14E0012FC4FBBF0FBDB3A70" box="[959,1063,1521,1539]" gridcol="2" gridrow="15" pageId="5" pageNumber="6">16.48–19.40</td>
<td id="C1655DFEE14E0012FB7CBBF0FB3C3A70" box="[1164,1216,1521,1539]" gridcol="3" gridrow="15" pageId="5" pageNumber="6">18.18</td>
<td id="C1655DFEE14E0012FABCBBF0FA9A3A70" box="[1356,1382,1521,1539]" gridcol="4" gridrow="15" pageId="5" pageNumber="6">1.1</td>
</tr>
<tr id="82B43482E14E0012FF60B816FA9A3A5A" box="[144,1382,1559,1577]" gridrow="16" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B816FA9A3A5A" box="[144,1382,1559,1577]" colspan="5" colspanRight="4" gridcol="0" gridrow="16" pageId="5" pageNumber="6">
<emphasis id="0EF0EAD2E14EFFE8FF60B816FE793A54" bold="true" box="[144,389,1559,1577]" pageId="5" pageNumber="6">Percentage of head length</emphasis>
</th>
</tr>
<tr id="82B43482E14E0012FF60B83DFA9A3A3D" box="[144,1382,1596,1614]" gridrow="17" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B83DFD333A3D" box="[144,719,1596,1614]" gridcol="0" gridrow="17" pageId="5" pageNumber="6">Head width</th>
<td id="C1655DFEE14E0012FCE5B83DFC973A3D" box="[789,875,1596,1614]" gridcol="1" gridrow="17" pageId="5" pageNumber="6">60.04</td>
<td id="C1655DFEE14E0012FC4FB83DFBDB3A3D" box="[959,1063,1596,1614]" gridcol="2" gridrow="17" pageId="5" pageNumber="6">55.91–72.72</td>
<td id="C1655DFEE14E0012FB7CB83DFB3C3A3D" box="[1164,1216,1596,1614]" gridcol="3" gridrow="17" pageId="5" pageNumber="6">63.19</td>
<td id="C1655DFEE14E0012FABCB83DFA9A3A3D" box="[1356,1382,1596,1614]" gridcol="4" gridrow="17" pageId="5" pageNumber="6">5.1</td>
</tr>
<tr id="82B43482E14E0012FF60B863FA9A3A07" box="[144,1382,1634,1652]" gridrow="18" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B863FD333A07" box="[144,719,1634,1652]" gridcol="0" gridrow="18" pageId="5" pageNumber="6">Head depth</th>
<td id="C1655DFEE14E0012FCE5B863FC973A07" box="[789,875,1634,1652]" gridcol="1" gridrow="18" pageId="5" pageNumber="6">43.59</td>
<td id="C1655DFEE14E0012FC4FB863FBDB3A07" box="[959,1063,1634,1652]" gridcol="2" gridrow="18" pageId="5" pageNumber="6">43.59–51.47</td>
<td id="C1655DFEE14E0012FB7CB863FB3C3A07" box="[1164,1216,1634,1652]" gridcol="3" gridrow="18" pageId="5" pageNumber="6">46.75</td>
<td id="C1655DFEE14E0012FABCB863FA9A3A07" box="[1356,1382,1634,1652]" gridcol="4" gridrow="18" pageId="5" pageNumber="6">2.6</td>
</tr>
<tr id="82B43482E14E0012FF60B889FA9A3AE9" box="[144,1382,1672,1690]" gridrow="19" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B889FD333AE9" box="[144,719,1672,1690]" gridcol="0" gridrow="19" pageId="5" pageNumber="6">Interorbital distance</th>
<td id="C1655DFEE14E0012FCE5B889FC973AE9" box="[789,875,1672,1690]" gridcol="1" gridrow="19" pageId="5" pageNumber="6">19.78</td>
<td id="C1655DFEE14E0012FC4FB889FBDB3AE9" box="[959,1063,1672,1690]" gridcol="2" gridrow="19" pageId="5" pageNumber="6">19.78–29.39</td>
<td id="C1655DFEE14E0012FB7CB889FB3C3AE9" box="[1164,1216,1672,1690]" gridcol="3" gridrow="19" pageId="5" pageNumber="6">24.77</td>
<td id="C1655DFEE14E0012FABCB889FA9A3AE9" box="[1356,1382,1672,1690]" gridcol="4" gridrow="19" pageId="5" pageNumber="6">3.1</td>
</tr>
<tr id="82B43482E14E0012FF60B8AFFA9A3AB3" box="[144,1382,1710,1728]" gridrow="20" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B8AFFD333AB3" box="[144,719,1710,1728]" gridcol="0" gridrow="20" pageId="5" pageNumber="6">Snout length</th>
<td id="C1655DFEE14E0012FCE5B8AFFC973AB3" box="[789,875,1710,1728]" gridcol="1" gridrow="20" pageId="5" pageNumber="6">38.85</td>
<td id="C1655DFEE14E0012FC4FB8AFFBDB3AB3" box="[959,1063,1710,1728]" gridcol="2" gridrow="20" pageId="5" pageNumber="6">34.11–47.96</td>
<td id="C1655DFEE14E0012FB7CB8AFFB3C3AB3" box="[1164,1216,1710,1728]" gridcol="3" gridrow="20" pageId="5" pageNumber="6">41.60</td>
<td id="C1655DFEE14E0012FABCB8AFFA9A3AB3" box="[1356,1382,1710,1728]" gridcol="4" gridrow="20" pageId="5" pageNumber="6">4.2</td>
</tr>
<tr id="82B43482E14E0012FF60B8D5FA9A3A95" box="[144,1382,1748,1766]" gridrow="21" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B8D5FD333A95" box="[144,719,1748,1766]" gridcol="0" gridrow="21" pageId="5" pageNumber="6">Maxillary-barbel length</th>
<td id="C1655DFEE14E0012FCE5B8D5FC973A95" box="[789,875,1748,1766]" gridcol="1" gridrow="21" pageId="5" pageNumber="6">17.76</td>
<td id="C1655DFEE14E0012FC4FB8D5FBDB3A95" box="[959,1063,1748,1766]" gridcol="2" gridrow="21" pageId="5" pageNumber="6">17.76–24.87</td>
<td id="C1655DFEE14E0012FB7CB8D5FB3C3A95" box="[1164,1216,1748,1766]" gridcol="3" gridrow="21" pageId="5" pageNumber="6">22.21</td>
<td id="C1655DFEE14E0012FABCB8D5FA9A3A95" box="[1356,1382,1748,1766]" gridcol="4" gridrow="21" pageId="5" pageNumber="6">2.5</td>
</tr>
<tr id="82B43482E14E0012FF60B8F8FA9A3B78" box="[144,1382,1785,1803]" gridrow="22" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B8F8FD333B78" box="[144,719,1785,1803]" gridcol="0" gridrow="22" pageId="5" pageNumber="6">Rictal-barbel length</th>
<td id="C1655DFEE14E0012FCE5B8F8FC973B78" box="[789,875,1785,1803]" gridcol="1" gridrow="22" pageId="5" pageNumber="6">9.89</td>
<td id="C1655DFEE14E0012FC4FB8F8FBDB3B78" box="[959,1063,1785,1803]" gridcol="2" gridrow="22" pageId="5" pageNumber="6">8.85–16.44</td>
<td id="C1655DFEE14E0012FB7CB8F8FB3C3B78" box="[1164,1216,1785,1803]" gridcol="3" gridrow="22" pageId="5" pageNumber="6">12.27</td>
<td id="C1655DFEE14E0012FABCB8F8FA9A3B78" box="[1356,1382,1785,1803]" gridcol="4" gridrow="22" pageId="5" pageNumber="6">2.6</td>
</tr>
<tr id="82B43482E14E0012FF60B91EFA9A3B42" box="[144,1382,1823,1841]" gridrow="23" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B91EFD333B42" box="[144,719,1823,1841]" gridcol="0" gridrow="23" pageId="5" pageNumber="6">Mouth width</th>
<td id="C1655DFEE14E0012FCE5B91EFC973B42" box="[789,875,1823,1841]" gridcol="1" gridrow="23" pageId="5" pageNumber="6">40.46</td>
<td id="C1655DFEE14E0012FC4FB91EFBDB3B42" box="[959,1063,1823,1841]" gridcol="2" gridrow="23" pageId="5" pageNumber="6">40.45–51.84</td>
<td id="C1655DFEE14E0012FB7CB91EFB3C3B42" box="[1164,1216,1823,1841]" gridcol="3" gridrow="23" pageId="5" pageNumber="6">44.41</td>
<td id="C1655DFEE14E0012FABCB91EFA9A3B42" box="[1356,1382,1823,1841]" gridcol="4" gridrow="23" pageId="5" pageNumber="6">3.8</td>
</tr>
<tr id="82B43482E14E0012FF60B944FA9A3B24" box="[144,1382,1861,1879]" gridrow="24" pageId="5" pageNumber="6">
<th id="C1655DFEE14E0012FF60B944FD333B24" box="[144,719,1861,1879]" gridcol="0" gridrow="24" pageId="5" pageNumber="6">Eye diameter</th>
<td id="C1655DFEE14E0012FCE5B944FC973B24" box="[789,875,1861,1879]" gridcol="1" gridrow="24" pageId="5" pageNumber="6">23.51</td>
<td id="C1655DFEE14E0012FC4FB944FBDB3B24" box="[959,1063,1861,1879]" gridcol="2" gridrow="24" pageId="5" pageNumber="6">20.02–30.91</td>
<td id="C1655DFEE14E0012FB7CB944FB3C3B24" box="[1164,1216,1861,1879]" gridcol="3" gridrow="24" pageId="5" pageNumber="6">26.77</td>
<td id="C1655DFEE14E0012FABCB944FA9A3B24" box="[1356,1382,1861,1879]" gridcol="4" gridrow="24" pageId="5" pageNumber="6">3.2</td>
</tr>
</table>
</paragraph>
<paragraph id="3C3B36C0E14DFFEBFDF6BEBFFA803F23" blockId="6.[487,1461,190,849]" pageId="6" pageNumber="7">
<emphasis id="0EF0EAD2E14DFFEBFDF6BEBFFD723CA5" bold="true" box="[518,654,190,214]" pageId="6" pageNumber="7">Non-types.</emphasis>
<materialsCitation id="8CEC3C9DE14DFFEBFD6EBEBFFDCC3C88" collectionCode="INPA" pageId="6" pageNumber="7" specimenCode="INPA 33819, 24" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFD6EBEBFFCC43CA5" box="[670,824,190,214]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">INPA 33819</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFCBCBEBFFC9B3CA5" box="[844,871,190,214]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">24</specimenCode>
eth (
<quantity id="FB7C9B25E14DFFEBFC42BEBFFB863CA6" box="[946,1146,190,214]" metricMagnitude="-2" metricUnit="m" metricValue="1.5844999999999998" metricValueMax="1.6949999999999998" metricValueMin="1.474" pageId="6" pageNumber="7" unit="mm" value="15.844999999999999" valueMax="16.95" valueMin="14.74">14.74–16.95 mm</quantity>
SL), same data as INPA 28592
</materialsCitation>
. 
<materialsCitation id="8CEC3C9DE14DFFEBFDCEBEE2FA753D35" collectingDate="2012-08-17" collectionCode="INPA" collectorName="dos Caetanos" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3325" location="Amazonas State" longLatPrecision="21" longitude="-63.21278" municipality="rio Ipixuna" pageId="6" pageNumber="7" specimenCode="INPA 42139, 19" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFDCEBEE2FD2F3C88" box="[574,723,227,251]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">INPA 42139</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFD12BEE2FD013C88" box="[738,765,227,251]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">19</specimenCode>
eth (
<quantity id="FB7C9B25E14DFFEBFCCFBEE2FBFE3C88" box="[831,1026,227,251]" metricMagnitude="-2" metricUnit="m" metricValue="1.6544999999999999" metricValueMax="1.781" metricValueMin="1.528" pageId="6" pageNumber="7" unit="mm" value="16.544999999999998" valueMax="17.81" valueMin="15.28">15.28–17.81 mm</quantity>
SL), 
<collectingCountry id="44937650E14DFFEBFBB6BEE2FB763C88" box="[1094,1162,227,251]" name="Brazil" pageId="6" pageNumber="7">Brazil</collectingCountry>
, 
<location id="395B601BE14DFFEBFB6ABEE2FAAD3C88" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFB6ABEE2FAAD3C88" box="[1178,1361,227,251]" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3325" longLatPrecision="21" longitude="-63.21278" municipality="rio Ipixuna" name="Amazonas State" pageId="6" pageNumber="7">Amazonas State</location>
, 
<location id="395B601BE14DFFEBFA90BEE2FD873D53" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFA90BEE2FD873D53" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3325" longLatPrecision="21" longitude="-63.21278" municipality="rio Ipixuna" name="Tapaua Municipality" pageId="6" pageNumber="7">Tapauá Municipality</location>
, 
<location id="395B601BE14DFFEBFD79BF09FCD93D52" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFD79BF09FCD93D52" box="[649,805,264,289]" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3325" longLatPrecision="21" longitude="-63.21278" municipality="rio Ipixuna" name="rio Amazonas" pageId="6" pageNumber="7">rio Amazonas</location>
basin, 
<location id="395B601BE14DFFEBFC8ABF09FC1F3D53" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFC8ABF09FC1F3D53" box="[890,995,264,288]" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3325" longLatPrecision="21" longitude="-63.21278" municipality="rio Ipixuna" name="rio Purus" pageId="6" pageNumber="7">rio Purus</location>
drainage, 
<collectingMunicipality id="DC5FACBAE14DFFEBFBAEBF09FB213D53" box="[1118,1245,264,288]" pageId="6" pageNumber="7">rio Ipixuna</collectingMunicipality>
drainage, igarapés 
<collectorName id="91715316E14DFFEBFE18BF2FFD7D3D35" box="[488,641,302,326]" pageId="6" pageNumber="7">dos Caetanos</collectorName>
, 
<collectingCounty id="D55A4E4CE14DFFEBFD60BF2FFC533D35" box="[656,943,302,326]" pageId="6" pageNumber="7">Floresta Estadual Tapauá</collectingCounty>
, 
<geoCoordinate id="59B05007E14DFFEBFC4DBF2FFBB93D35" box="[957,1093,302,326]" degrees="06" direction="south" minutes="19" orientation="latitude" pageId="6" pageNumber="7" precision="15" seconds="57" value="-6.3325">06°19’57” S</geoCoordinate>
<geoCoordinate id="59B05007E14DFFEBFBA0BF2FFB233D35" box="[1104,1247,302,326]" degrees="63" direction="west" minutes="12" orientation="longitude" pageId="6" pageNumber="7" precision="15" seconds="46" value="-63.21278">63°12’46”W</geoCoordinate>
, 
<date id="483A1000E14DFFEBFB1FBF2FFA753D35" box="[1263,1417,302,326]" pageId="6" pageNumber="7" value="2012-08-17">
<collectingDate id="587EE9E8E14DFFEBFB1FBF2FFA753D35" box="[1263,1417,302,326]" pageId="6" pageNumber="7" value="2012-08-17">17 Aug 2012</collectingDate>
</date>
</materialsCitation>
, 
<materialsCitation id="8CEC3C9DE14DFFEBFA69BF2FFD103D18" collectionCode="T" collectorName="M. Carvalho" country="Brazil" location="Couto" pageId="6" pageNumber="7" specimenCount="1">
<collectionCode id="5A95AE05E14DFFEBFA69BF2FFA533D36" box="[1433,1455,302,325]" name="Tavera, Department of Geology and Geophysics" pageId="6" pageNumber="7">T</collectionCode>
. 
<location id="395B601BE14DFFEBFE18BF52FDCC3D18" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFE18BF52FDCC3D18" box="[488,560,339,363]" country="Brazil" name="Couto" pageId="6" pageNumber="7">Couto</location>
&amp; 
<collectorName id="91715316E14DFFEBFDA8BF55FD103D18" box="[600,748,339,363]" pageId="6" pageNumber="7">M. Carvalho</collectorName>
</materialsCitation>
. 
<materialsCitation id="8CEC3C9DE14DFFEBFCF3BF52FA533DC5" collectingDate="2012-08-18" collectionCode="INPA" collectorName="dos Mutuns" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3747225" location="Amazonas State" longLatPrecision="21" longitude="-63.274166" municipality="rio Ipixuna" pageId="6" pageNumber="7" specimenCode="INPA 42148, 1" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFCF3BF52FC6A3D18" box="[771,918,339,363]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">INPA 42148</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFC54BF52FC4E3D18" box="[932,946,339,363]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">1</specimenCode>
eth (
<quantity id="FB7C9B25E14DFFEBFC01BF52FB9A3D18" box="[1009,1126,339,363]" metricMagnitude="-2" metricUnit="m" metricValue="1.657" pageId="6" pageNumber="7" unit="mm" value="16.57">16.57 mm</quantity>
SL), 
<collectingCountry id="44937650E14DFFEBFB57BF52FB173D18" box="[1191,1259,339,363]" name="Brazil" pageId="6" pageNumber="7">Brazil</collectingCountry>
, 
<location id="395B601BE14DFFEBFB09BF52FA533D18" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFB09BF52FA533D18" box="[1273,1455,339,363]" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3747225" longLatPrecision="21" longitude="-63.274166" municipality="rio Ipixuna" name="Amazonas State" pageId="6" pageNumber="7">Amazonas State</location>
, 
<location id="395B601BE14DFFEBFE18BF78FD243DE3" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFE18BF78FD243DE3" box="[488,728,376,401]" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3747225" longLatPrecision="21" longitude="-63.274166" municipality="rio Ipixuna" name="Tapaua Municipality" pageId="6" pageNumber="7">Tapauá Municipality</location>
, 
<location id="395B601BE14DFFEBFD17BF79FC793DE2" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFD17BF79FC793DE2" box="[743,901,376,401]" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3747225" longLatPrecision="21" longitude="-63.274166" municipality="rio Ipixuna" name="rio Amazonas" pageId="6" pageNumber="7">rio Amazonas</location>
basin, 
<location id="395B601BE14DFFEBFC2ABF79FBB83DE3" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFC2ABF79FBB83DE3" box="[986,1092,376,400]" country="Brazil" county="Floresta Estadual Tapaua" latitude="-6.3747225" longLatPrecision="21" longitude="-63.274166" municipality="rio Ipixuna" name="rio Purus" pageId="6" pageNumber="7">rio Purus</location>
drainage, 
<collectingMunicipality id="DC5FACBAE14DFFEBFB31BF79FABC3DE3" box="[1217,1344,376,400]" pageId="6" pageNumber="7">rio Ipixuna</collectingMunicipality>
drainage, igarapé 
<collectorName id="91715316E14DFFEBFDB1BF9FFD3B3DC6" box="[577,711,414,438]" pageId="6" pageNumber="7">dos Mutuns</collectorName>
, 
<collectingCounty id="D55A4E4CE14DFFEBFD24BF9FFC113DC5" box="[724,1005,414,438]" pageId="6" pageNumber="7">Floresta Estadual Tapauá</collectingCounty>
, 
<geoCoordinate id="59B05007E14DFFEBFC09BF9FFB8A3DC5" box="[1017,1142,414,438]" degrees="06" direction="south" minutes="22" orientation="latitude" pageId="6" pageNumber="7" precision="15" seconds="29" value="-6.3747225">06°22’29”S</geoCoordinate>
<geoCoordinate id="59B05007E14DFFEBFB8EBF9FFAF23DC5" box="[1150,1294,414,438]" degrees="63" direction="west" minutes="16" orientation="longitude" pageId="6" pageNumber="7" precision="15" seconds="27" value="-63.274166">63°16’27”W</geoCoordinate>
, 
<date id="483A1000E14DFFEBFAEABF9FFA533DC5" box="[1306,1455,414,438]" pageId="6" pageNumber="7" value="2012-08-18">
<collectingDate id="587EE9E8E14DFFEBFAEABF9FFA533DC5" box="[1306,1455,414,438]" pageId="6" pageNumber="7" value="2012-08-18">18 Aug 2012</collectingDate>
</date>
</materialsCitation>
, 
<materialsCitation id="8CEC3C9DE14DFFEBFE18BFC5FCF53DA8" box="[488,777,451,475]" collectionCode="T" collectorName="M. Carvalho" country="Brazil" location="Couto" pageId="6" pageNumber="7" specimenCount="1">
<collectionCode id="5A95AE05E14DFFEBFE18BFC5FE023DA8" box="[488,510,452,475]" name="Tavera, Department of Geology and Geophysics" pageId="6" pageNumber="7">T</collectionCode>
. 
<location id="395B601BE14DFFEBFDFBBFC2FDAF3DA8" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFDFBBFC2FDAF3DA8" box="[523,595,451,475]" country="Brazil" name="Couto" pageId="6" pageNumber="7">Couto</location>
&amp; 
<collectorName id="91715316E14DFFEBFD87BFC5FCF53DA8" box="[631,777,451,475]" pageId="6" pageNumber="7">M. Carvalho</collectorName>
</materialsCitation>
. 
<materialsCitation id="8CEC3C9DE14DFFEBFCE4BFC2FBC63E55" collectingDate="2008-09-28" collectionCode="INPA" collectorName="E. Ferreira" country="Brazil" county="Aiapua" latitude="-4.438011" location="Amazonas State" longLatPrecision="15" longitude="-62.123333" municipality="rio Purus" pageId="6" pageNumber="7" specimenCode="INPA 56815, 1" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFCE4BFC2FC5A3DA8" box="[788,934,451,475]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">INPA 56815</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFC42BFC2FC3C3DA8" box="[946,960,451,475]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">1</specimenCode>
eth (
<quantity id="FB7C9B25E14DFFEBFC0BBFC2FB923DA8" box="[1019,1134,451,475]" metricMagnitude="-2" metricUnit="m" metricValue="1.621" pageId="6" pageNumber="7" unit="mm" value="16.21">16.21 mm</quantity>
SL), 
<collectingCountry id="44937650E14DFFEBFB5BBFC2FB133DA8" box="[1195,1263,451,475]" name="Brazil" pageId="6" pageNumber="7">Brazil</collectingCountry>
, 
<location id="395B601BE14DFFEBFB0CBFC2FA4C3DA8" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFB0CBFC2FA4C3DA8" box="[1276,1456,451,475]" country="Brazil" county="Aiapua" latitude="-4.438011" longLatPrecision="15" longitude="-62.123333" municipality="rio Purus" name="Amazonas State" pageId="6" pageNumber="7">Amazonas State</location>
, 
<location id="395B601BE14DFFEBFE19BFE9FD313E73" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFE19BFE9FD313E73" box="[489,717,488,512]" country="Brazil" county="Aiapua" latitude="-4.438011" longLatPrecision="15" longitude="-62.123333" municipality="rio Purus" name="Beruri Municipality" pageId="6" pageNumber="7">Beruri Municipality</location>
, 
<location id="395B601BE14DFFEBFD2CBFE9FC843E72" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFD2CBFE9FC843E72" box="[732,888,488,513]" country="Brazil" county="Aiapua" latitude="-4.438011" longLatPrecision="15" longitude="-62.123333" municipality="rio Purus" name="rio Amazonas" pageId="6" pageNumber="7">rio Amazonas</location>
basin, 
<collectingMunicipality id="DC5FACBAE14DFFEBFC3CBFE9FBCA3E73" box="[972,1078,488,512]" pageId="6" pageNumber="7">rio Purus</collectingMunicipality>
drainage, stream in lago 
<collectingCounty id="D55A4E4CE14DFFEBFAAFBFE9FA4C3E73" box="[1375,1456,488,512]" pageId="6" pageNumber="7">Aiapuá</collectingCounty>
, 
<geoCoordinate id="59B05007E14DFFEBFE18BC0FFD7B3E55" box="[488,647,526,550]" degrees="04" direction="south" minutes="26" orientation="latitude" pageId="6" pageNumber="7" precision="1" seconds="16.84" value="-4.438011">04°26’16.84”S</geoCoordinate>
<geoCoordinate id="59B05007E14DFFEBFD7EBC0FFCE23E55" box="[654,798,526,550]" degrees="62" direction="west" minutes="07" orientation="longitude" pageId="6" pageNumber="7" precision="15" seconds="24" value="-62.123333">62°07’24”W</geoCoordinate>
, 
<date id="483A1000E14DFFEBFCDABC0FFC493E55" box="[810,949,526,550]" pageId="6" pageNumber="7" value="2008-09-28">
<collectingDate id="587EE9E8E14DFFEBFCDABC0FFC493E55" box="[810,949,526,550]" pageId="6" pageNumber="7" value="2008-09-28">28 Sep 2008</collectingDate>
</date>
, 
<collectorName id="91715316E14DFFEBFC31BC0FFBC63E55" box="[961,1082,526,550]" pageId="6" pageNumber="7">E. Ferreira</collectorName>
</materialsCitation>
. 
<materialsCitation id="8CEC3C9DE14DFFEBFBB5BC0FFDB83E38" collectionCode="INPA" country="Brazil" pageId="6" pageNumber="7" specimenCode="INPA 56885, 3" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFBB5BC0FFB2A3E55" box="[1093,1238,526,550]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">INPA 56885</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFB11BC0FFB133E55" box="[1249,1263,526,550]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">3</specimenCode>
eth (
<quantity id="FB7C9B25E14DFFEBFAD9BC0FFDE93E38" metricMagnitude="-2" metricUnit="m" metricValue="1.547" metricValueMax="1.556" metricValueMin="1.538" pageId="6" pageNumber="7" unit="mm" value="15.47" valueMax="15.56" valueMin="15.38">15.38–15.56 mm</quantity>
SL)
</materialsCitation>
, 
<materialsCitation id="8CEC3C9DE14DFFEBFDBEBC32FAB33E38" box="[590,1359,563,587]" collectionCode="INPA" country="Brazil" pageId="6" pageNumber="7" specimenCode="INPA 56920, 76" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFDBEBC32FD223E38" box="[590,734,563,587]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">INPA 56920</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFD19BC32FCF83E38" box="[745,772,563,587]" collectionCode="INPA" country="Brazil" httpUri="http://grbio.org/cool/rm88-499z" name="Instituto Nacional de Pesquisas da Amazonia" pageId="6" pageNumber="7">76</specimenCode>
eth (
<quantity id="FB7C9B25E14DFFEBFCCBBC32FC053E38" box="[827,1017,563,587]" metricMagnitude="-2" metricUnit="m" metricValue="1.5485" metricValueMax="1.685" metricValueMin="1.412" pageId="6" pageNumber="7" unit="mm" value="15.485" valueMax="16.85" valueMin="14.12">14.12–16.85 mm</quantity>
SL), same data as INPA 56815
</materialsCitation>
. 
<materialsCitation id="8CEC3C9DE14DFFEBFAA9BC32FC633EC8" collectingDate="2012-07-22" collectorName="W. M. Ohara" country="Brazil" county="rio Ipixuna" latitude="-7.534167" location="Amazonas State" longLatPrecision="21" longitude="-63.352222" municipality="rio Purus" pageId="6" pageNumber="7" specimenCode="UFRO-ICT 15405, 4" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFAA9BC32FD943E03" collectionCode="UFRO-ICT" pageId="6" pageNumber="7">UFRO-ICT 15405</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFD84BC58FD7E3E02" box="[628,642,601,625]" collectionCode="UFRO-ICT" pageId="6" pageNumber="7">4</specimenCode>
eth (15.0– 
<quantity id="FB7C9B25E14DFFEBFD0DBC59FC9E3E03" box="[765,866,600,624]" metricMagnitude="-2" metricUnit="m" metricValue="1.63" pageId="6" pageNumber="7" unit="mm" value="16.3">16.3 mm</quantity>
SL), 
<collectingCountry id="44937650E14DFFEBFC50BC59FC183E03" box="[928,996,600,624]" name="Brazil" pageId="6" pageNumber="7">Brazil</collectingCountry>
, 
<location id="395B601BE14DFFEBFC00BC58FB593E02" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFC00BC58FB593E02" box="[1008,1189,601,625]" country="Brazil" county="rio Ipixuna" latitude="-7.534167" longLatPrecision="21" longitude="-63.352222" municipality="rio Purus" name="Amazonas State" pageId="6" pageNumber="7">Amazonas State</location>
, 
<location id="395B601BE14DFFEBFB41BC59FA533E03" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFB41BC59FA533E03" box="[1201,1455,600,624]" country="Brazil" county="rio Ipixuna" latitude="-7.534167" longLatPrecision="21" longitude="-63.352222" municipality="rio Purus" name="Humaita Municipality" pageId="6" pageNumber="7">Humaitá Municipality</location>
, 
<location id="395B601BE14DFFEBFE19BC7FFD793EE5" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFE19BC7FFD793EE5" box="[489,645,638,662]" country="Brazil" county="rio Ipixuna" latitude="-7.534167" longLatPrecision="21" longitude="-63.352222" municipality="rio Purus" name="rio Amazonas" pageId="6" pageNumber="7">rio Amazonas</location>
basin, 
<collectingMunicipality id="DC5FACBAE14DFFEBFD27BC7FFCBC3EE6" box="[727,832,638,662]" pageId="6" pageNumber="7">rio Purus</collectingMunicipality>
drainage, unnamed tributary of 
<collectingCounty id="D55A4E4CE14DFFEBFB47BC7FFACB3EE5" box="[1207,1335,638,662]" pageId="6" pageNumber="7">rio Ipixuna</collectingCounty>
, 
<geoCoordinate id="59B05007E14DFFEBFAB4BC7FFA493EE5" box="[1348,1461,638,662]" degrees="07" direction="south" minutes="32" orientation="latitude" pageId="6" pageNumber="7" precision="15" seconds="3" value="-7.534167">07°32’3”S</geoCoordinate>
<geoCoordinate id="59B05007E14DFFEBFE1ABCA2FD973EC8" box="[490,619,675,699]" degrees="63" direction="west" minutes="21" orientation="longitude" pageId="6" pageNumber="7" precision="15" seconds="8" value="-63.352222">63°21’8”W</geoCoordinate>
, 
<date id="483A1000E14DFFEBFD88BCA2FD003EC8" box="[632,764,675,699]" pageId="6" pageNumber="7" value="2012-07-22">
<collectingDate id="587EE9E8E14DFFEBFD88BCA2FD003EC8" box="[632,764,675,699]" pageId="6" pageNumber="7" value="2012-07-22">22 Jul 2012</collectingDate>
</date>
, 
<collectorName id="91715316E14DFFEBFCF9BCA5FC633EC8" box="[777,927,675,699]" pageId="6" pageNumber="7">W.M. Ohara</collectorName>
</materialsCitation>
. 
<materialsCitation id="8CEC3C9DE14DFFEBFC5BBCA2FB4A3F75" collectingDate="2012-07-21" collectorName="W. M. Ohara" country="Brazil" county="rio Ipixuna" latitude="-7.521944" location="Amazonas State" longLatPrecision="21" longitude="-63.35" municipality="rio Purus" pageId="6" pageNumber="7" specimenCode="UFRO-ICT 15520, 2" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFC5BBCA2FB7A3EC8" box="[939,1158,675,699]" collectionCode="UFRO-ICT" pageId="6" pageNumber="7">UFRO-ICT 15520</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFB62BCA2FB5C3EC8" box="[1170,1184,675,699]" collectionCode="UFRO-ICT" pageId="6" pageNumber="7">2</specimenCode>
eth (16.0–16.0 mm SL), 
<collectingCountry id="44937650E14DFFEBFE19BCC9FDD13E93" box="[489,557,712,736]" name="Brazil" pageId="6" pageNumber="7">Brazil</collectingCountry>
, 
<location id="395B601BE14DFFEBFDC8BCC8FD163E92" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFDC8BCC8FD163E92" box="[568,746,713,737]" country="Brazil" county="rio Ipixuna" latitude="-7.521944" longLatPrecision="21" longitude="-63.35" municipality="rio Purus" name="Amazonas State" pageId="6" pageNumber="7">Amazonas State</location>
, 
<location id="395B601BE14DFFEBFD04BCC9FC0C3E93" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFD04BCC9FC0C3E93" box="[756,1008,712,736]" country="Brazil" county="rio Ipixuna" latitude="-7.521944" longLatPrecision="21" longitude="-63.35" municipality="rio Purus" name="Humaita Municipality" pageId="6" pageNumber="7">Humaitá Municipality</location>
, 
<location id="395B601BE14DFFEBFC0BBCC9FB683E92" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFC0BBCC9FB683E92" box="[1019,1172,712,737]" country="Brazil" county="rio Ipixuna" latitude="-7.521944" longLatPrecision="21" longitude="-63.35" municipality="rio Purus" name="rio Amazonas" pageId="6" pageNumber="7">rio Amazonas</location>
basin, 
<collectingMunicipality id="DC5FACBAE14DFFEBFB11BCC9FABB3E93" box="[1249,1351,712,736]" pageId="6" pageNumber="7">rio Purus</collectingMunicipality>
drainage, 
<collectingCounty id="D55A4E4CE14DFFEBFE17BCEFFD993F75" box="[487,613,750,774]" pageId="6" pageNumber="7">rio Ipixuna</collectingCounty>
, 
<geoCoordinate id="59B05007E14DFFEBFD80BCEFFD123F75" box="[624,750,750,774]" degrees="07" direction="south" minutes="31" orientation="latitude" pageId="6" pageNumber="7" precision="15" seconds="19" value="-7.521944">07°31’19”S</geoCoordinate>
<geoCoordinate id="59B05007E14DFFEBFD04BCEFFC763F76" box="[756,906,750,774]" degrees="63" direction="west" minutes="21" orientation="longitude" pageId="6" pageNumber="7" precision="15" seconds="00" value="-63.35">63°21’00” W</geoCoordinate>
, 
<date id="483A1000E14DFFEBFC66BCEFFBEA3F75" box="[918,1046,750,774]" pageId="6" pageNumber="7" value="2012-07-21">
<collectingDate id="587EE9E8E14DFFEBFC66BCEFFBEA3F75" box="[918,1046,750,774]" pageId="6" pageNumber="7" value="2012-07-21">21 Jul 2012</collectingDate>
</date>
, 
<collectorName id="91715316E14DFFEBFBD2BCEFFB4A3F75" box="[1058,1206,750,774]" pageId="6" pageNumber="7">W.M. Ohara</collectorName>
</materialsCitation>
. 
<materialsCitation id="8CEC3C9DE14DFFEBFB30BCEFFA843F23" collectingDate="2012-08-09" collectorName="W. M. Ohara" country="Brazil" county="rio Acua" latitude="-8.196389" location="Amazonas State" longLatPrecision="21" longitude="-63.8625" municipality="rio Purus" pageId="6" pageNumber="7" specimenCode="UFRO-ICT 15538, 1" specimenCount="1">
<specimenCode id="6C229EBBE14DFFEBFB30BCEFFA663F75" box="[1216,1434,750,774]" collectionCode="UFRO-ICT" pageId="6" pageNumber="7">UFRO-ICT 15538</specimenCode>
, 
<specimenCode id="6C229EBBE14DFFEBFA55BCEFFA4F3F75" box="[1445,1459,750,774]" collectionCode="UFRO-ICT" pageId="6" pageNumber="7">1</specimenCode>
eth (
<quantity id="FB7C9B25E14DFFEBFDEABD12FD823F58" box="[538,638,787,811]" metricMagnitude="-2" metricUnit="m" metricValue="1.55" pageId="6" pageNumber="7" unit="mm" value="15.5">15.5 mm</quantity>
SL), 
<collectingCountry id="44937650E14DFFEBFD4ABD12FD023F58" box="[698,766,787,811]" name="Brazil" pageId="6" pageNumber="7">Brazil</collectingCountry>
, 
<location id="395B601BE14DFFEBFCFABD12FC413F58" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFCFABD12FC413F58" box="[778,957,787,811]" country="Brazil" county="rio Acua" latitude="-8.196389" longLatPrecision="21" longitude="-63.8625" municipality="rio Purus" name="Amazonas State" pageId="6" pageNumber="7">Amazonas State</location>
, 
<location id="395B601BE14DFFEBFC38BD12FB393F58" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFC38BD12FB393F58" box="[968,1221,787,811]" country="Brazil" county="rio Acua" latitude="-8.196389" longLatPrecision="21" longitude="-63.8625" municipality="rio Purus" name="Humaita Municipality" pageId="6" pageNumber="7">Humaitá Municipality</location>
, 
<location id="395B601BE14DFFEBFB21BD12FA973F58" LSID="urn:lsid:plazi:treatment:B42D87D6E14EFFE3FD3CBEBFFACA3F95:395B601BE14DFFEBFB21BD12FA973F58" box="[1233,1387,787,811]" country="Brazil" county="rio Acua" latitude="-8.196389" longLatPrecision="21" longitude="-63.8625" municipality="rio Purus" name="rio Amazonas" pageId="6" pageNumber="7">rio Amazonas</location>
basin, 
<collectingMunicipality id="DC5FACBAE14DFFEBFE18BD39FDB33F23" box="[488,591,824,848]" pageId="6" pageNumber="7">rio Purus</collectingMunicipality>
drainage, 
<collectingCounty id="D55A4E4CE14DFFEBFD34BD39FCDB3F22" box="[708,807,824,849]" pageId="6" pageNumber="7">rio Açuã</collectingCounty>
, 
<geoCoordinate id="59B05007E14DFFEBFCC2BD38FC4C3F22" box="[818,944,825,849]" degrees="08" direction="south" minutes="11" orientation="latitude" pageId="6" pageNumber="7" precision="15" seconds="47" value="-8.196389">08°11’47”S</geoCoordinate>
<geoCoordinate id="59B05007E14DFFEBFC47BD39FBBA3F23" box="[951,1094,824,848]" degrees="63" direction="west" minutes="51" orientation="longitude" pageId="6" pageNumber="7" precision="15" seconds="45" value="-63.8625">63°51’45”W</geoCoordinate>
, 
<date id="483A1000E14DFFEBFBA2BD38FB243F22" box="[1106,1240,825,849]" pageId="6" pageNumber="7" value="2012-08-09">
<collectingDate id="587EE9E8E14DFFEBFBA2BD38FB243F22" box="[1106,1240,825,849]" pageId="6" pageNumber="7" value="2012-08-09">9 Aug 2012</collectingDate>
</date>
, 
<collectorName id="91715316E14DFFEBFB13BD38FA843F23" box="[1251,1400,824,848]" pageId="6" pageNumber="7">W.M. Ohara</collectorName>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="749E654BE14DFFEBFDF6BD82FAC73843" pageId="6" pageNumber="7" type="diagnosis">
<paragraph id="3C3B36C0E14DFFEBFDF6BD82FAC73843" blockId="6.[485,1459,899,1073]" pageId="6" pageNumber="7">
<emphasis id="0EF0EAD2E14DFFEBFDF6BD82FD783FE8" bold="true" box="[518,644,899,923]" pageId="6" pageNumber="7">Diagnosis.</emphasis>
The new species differs from all other tridentines by having a conspicuous dark brown horizontal stripe in the middle of the caudal fin (
<figureCitation id="A4BF2A45E14DFFEBFB6EBDA9FB233FB2" box="[1182,1247,936,961]" captionStart="FIGURE 1" captionStartId="3.[488,561,1836,1856]" captionTargetBox="[488,1459,1136,1814]" captionTargetId="figure-229@3.[488,1459,1136,1814]" captionTargetPageId="3" captionText="FIGURE 1. Rhinotridens chromocaudatus, new genus and species, holotype, MZUSP 128216, 17.57 mm SL. Brazil, Amazonas, rio Ipixuna, tributary of the rio Purus, rio Solimões basin. Scale bar = 2.0 mm." figureDoi="http://doi.org/10.5281/zenodo.13348882" httpUri="https://zenodo.org/record/13348882/files/figure.png" pageId="6" pageNumber="7">Fig. 1</figureCitation>
). Ongoing studies indicate the existence of additional undescribed species of 
<taxonomicName id="FB844D43E14DFFEBFBA6BDCFFB253F95" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[1110,1241,974,998]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="6" pageNumber="7" phylum="Chordata" rank="genus">
<emphasis id="0EF0EAD2E14DFFEBFBA6BDCFFB253F95" box="[1110,1241,974,998]" italics="true" pageId="6" pageNumber="7">Rhinotridens</emphasis>
</taxonomicName>
that lack this caudal stripe (see Discussion). As a result, this character is preemptively proposed as autapomorphic for 
<taxonomicName id="FB844D43E14DFFEBFDFEBA18FD313843" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[526,717,1048,1072]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E14DFFEBFDFEBA18FD313843" box="[526,717,1048,1072]" italics="true" pageId="6" pageNumber="7">R. chromocaudatus</emphasis>
</taxonomicName>
rather than as a synapomorphy for the genus as a whole.
</paragraph>
</subSubSection>
<subSubSection id="749E654BE14DFFE3FDF6BA62FAE43E38" lastPageId="14" lastPageNumber="15" pageId="6" pageNumber="7" type="description">
<paragraph id="3C3B36C0E14DFFEBFDF6BA62FA8F39F3" blockId="6.[486,1461,1123,1931]" pageId="6" pageNumber="7">
<emphasis id="0EF0EAD2E14DFFEBFDF6BA62FC553808" bold="true" box="[518,937,1123,1147]" pageId="6" pageNumber="7">Description. External morphology.</emphasis>
Morphometric data for 
<typeStatus id="E33F8862E14DFFEBFB41BA62FAE83808" box="[1201,1300,1123,1147]" pageId="6" pageNumber="7" type="holotype">holotype</typeStatus>
and 
<typeStatus id="E33F8862E14DFFEBFAB9BA65FA4E380F" box="[1353,1458,1124,1148]" pageId="6" pageNumber="7" type="paratype">paratypes</typeStatus>
given in Tab. 1. Body elongate, roughly cylindrical at pectoral girdle level, progressively more compressed towards caudal peduncle (
<figureCitation id="A4BF2A45E14DFFEBFC22BAAFFBEF38B5" box="[978,1043,1198,1222]" captionStart="FIGURE 1" captionStartId="3.[488,561,1836,1856]" captionTargetBox="[488,1459,1136,1814]" captionTargetId="figure-229@3.[488,1459,1136,1814]" captionTargetPageId="3" captionText="FIGURE 1. Rhinotridens chromocaudatus, new genus and species, holotype, MZUSP 128216, 17.57 mm SL. Brazil, Amazonas, rio Ipixuna, tributary of the rio Purus, rio Solimões basin. Scale bar = 2.0 mm." figureDoi="http://doi.org/10.5281/zenodo.13348882" httpUri="https://zenodo.org/record/13348882/files/figure.png" pageId="6" pageNumber="7">Fig. 1</figureCitation>
). Dorsal profile slightly convex from tip of snout to dorsal fin, gently concave from that point to caudal peduncle. Ventral profile straight to gently convex from tip of snout to pectoral-fin origin, then slightly convex to pelvic-fin origin, straight from that point to anal-fin origin, concave from anal-fin origin to end of caudal peduncle. Anal opening shortly anterior to anal-fin origin. Greatest body depth shortly anterior to vertical through pelvic-fin origin.
</paragraph>
<paragraph id="3C3B36C0E14DFFEAFDF6BB8FFBC03D53" blockId="6.[486,1461,1123,1931]" lastBlockId="7.[486,1460,190,624]" lastPageId="7" lastPageNumber="8" pageId="6" pageNumber="7">Head depressed, longer than wide. Snout with round anteromedial protrusion particularly evident in dorsal and ventral views. Anterior nostril small and round, surrounded by short tube of integument, positioned closer to upper lip than to anterior margin of eye. Nasal barbel absent. Posterior nostril smaller than anterior one and located at midline between anterior nostril and eye. Mouth ventral, crescent-shaped, its corners slightly posterolaterally-oriented in ventral view. Anterior margin of upper lip gently rounded and continuous laterally with maxillary-barbel base. Lower lip thicker than upper one, with gently convex anterior margin and continuous laterally with rictal-barbel base. Bases of maxillary and rictal barbels continuous with lower lip. Maxillary barbel surpassing middle of eyeball, but not reaching its posterior margin. Rictal barbel slightly shorter than maxillary one. Eyes large and circular, covered by thick translucent skin not adhered to eyeball’s surface. Eyes located laterally on head, at middle of HL. Interorbital space slightly convex and about same length as eyeball diameter. Greatest head width at level of interopercular odontodophores. Interopercle with 6(4*)–8(1) conical odontodes. Opercle with 4(1)–6(1) conical odontodes, their posterior margins reaching vertical through base of first pectoral-fin ray. Branchiostegal membrane forming free fold ventrally across isthmus.</paragraph>
<paragraph id="3C3B36C0E14CFFEAFDF6BF2FFD1C3E03" blockId="7.[486,1460,190,624]" pageId="7" pageNumber="8">
Pectoral-fin rays similar in length, resulting in slightly convex distal margin. Pectoral-fin rays i,4 (both sides of 
<specimenCount id="2A82FD49E14CFFEAFCF1BF52FCB43D18" box="[769,840,339,363]" count="6" pageId="7" pageNumber="8" type="generic">6 spec</specimenCount>
, including 
<typeStatus id="E33F8862E14CFFEAFC37BF52FBD73D18" box="[967,1067,339,363]" pageId="7" pageNumber="8" type="holotype">holotype</typeStatus>
) or i,3,i (
<specimenCount id="2A82FD49E14CFFEAFB62BF52FB273D18" box="[1170,1243,339,363]" count="4" pageId="7" pageNumber="8" type="generic">4 spec</specimenCount>
). Pelvic-fin rays i,4 (
<specimenCount id="2A82FD49E14CFFEAFE00BF79FDCA3DE3" box="[496,566,376,400]" count="5" pageId="7" pageNumber="8" type="generic">5 spec</specimenCount>
; 
<typeStatus id="E33F8862E14CFFEAFDB0BF79FD583DE3" box="[576,676,376,400]" pageId="7" pageNumber="8" type="holotype">holotype</typeStatus>
) or i,3,i (
<specimenCount id="2A82FD49E14CFFEAFCF8BF79FCB33DE2" box="[776,847,376,401]" count="5" pageId="7" pageNumber="8" type="generic">5 spec</specimenCount>
). Dorsal fin with distal margin gently convex, its origin slightly posterior to that of anal fin. Dorsal-fin rays i,7 (
<specimenCount id="2A82FD49E14CFFEAFBABBF9FFB5F3DC6" box="[1115,1187,414,438]" count="6" pageId="7" pageNumber="8" type="generic">6 spec</specimenCount>
; 
<typeStatus id="E33F8862E14CFFEAFB5FBF9FFAE93DC5" box="[1199,1301,414,438]" pageId="7" pageNumber="8" type="holotype">holotype</typeStatus>
), i,6,i (
<specimenCount id="2A82FD49E14CFFEAFA94BF9FFA563DC5" box="[1380,1450,414,438]" count="3" pageId="7" pageNumber="8" type="generic">3 spec</specimenCount>
) or rarely i,5,i (
<specimenCount id="2A82FD49E14CFFEAFD7EBFC2FD283DA8" box="[654,724,451,475]" count="1" pageId="7" pageNumber="8" type="generic">1 spec</specimenCount>
). Anal fin elongate, with distal margin straight to slight concave. Anal-fin rays 
<superScript id="CBF19B88E14CFFEAFD72BFE9FD6E3D86" attach="left" box="[642,658,487,512]" fontSize="6" pageId="7" pageNumber="8">iP</superScript>
,i,17 (
<specimenCount id="2A82FD49E14CFFEAFD22BFE8FCE53E73" box="[722,793,489,513]" count="4" pageId="7" pageNumber="8" type="generic">4 spec</specimenCount>
, 
<typeStatus id="E33F8862E14CFFEAFCD4BFE9FC743E73" box="[804,904,488,512]" pageId="7" pageNumber="8" type="holotype">holotype</typeStatus>
) or 
<superScript id="CBF19B88E14CFFEAFC46BFE9FC3B3D86" attach="right" box="[950,967,487,512]" fontSize="6" pageId="7" pageNumber="8">iP</superScript>
,i,16 (
<specimenCount id="2A82FD49E14CFFEAFBF7BFE8FBB33E72" box="[1031,1103,489,513]" count="2" pageId="7" pageNumber="8" type="generic">2 spec</specimenCount>
), rarely 
<superScript id="CBF19B88E14CFFEAFB59BFE9FB463D86" attach="right" box="[1193,1210,487,512]" fontSize="6" pageId="7" pageNumber="8">iP</superScript>
,i,18 (
<specimenCount id="2A82FD49E14CFFEAFB09BFE8FABE3E72" box="[1273,1346,489,513]" count="2" pageId="7" pageNumber="8" type="generic">2 spec</specimenCount>
), 
<superScript id="CBF19B88E14CFFEAFAA4BFE9FA993D86" attach="right" box="[1364,1381,487,512]" fontSize="6" pageId="7" pageNumber="8">iP</superScript>
,i,19 (
<specimenCount id="2A82FD49E14CFFEAFA57BFE8FDE43E55" count="1" pageId="7" pageNumber="8" type="generic">1 spec</specimenCount>
) or 
<superScript id="CBF19B88E14CFFEAFDBABC0FFD9E3E68" attach="left" box="[586,610,525,550]" fontSize="6" pageId="7" pageNumber="8">iiP</superScript>
,i,18 (
<specimenCount id="2A82FD49E14CFFEAFD56BC0FFD123E55" box="[678,750,526,550]" count="1" pageId="7" pageNumber="8" type="generic">1 spec</specimenCount>
). Caudal fin ranging from truncate to emarginate. Caudal-fin rays 
<superScript id="CBF19B88E14CFFEAFDECBC32FDC43E33" attach="left" box="[540,568,562,587]" fontSize="6" pageId="7" pageNumber="8">ixP</superScript>
,i,5 on dorsal lobe and 
<superScript id="CBF19B88E14CFFEAFCC0BC35FCBA3E33" attach="left" box="[816,838,562,587]" fontSize="6" pageId="7" pageNumber="8">xP</superScript>
,i,6 on ventral lobe. First procurrent rays of both caudal-fin lobes rudimentary.
</paragraph>
<paragraph id="3C3B36C0E14CFFEAFDF6BCA2FCD438D3" blockId="7.[486,1460,675,1184]" pageId="7" pageNumber="8">
<emphasis id="0EF0EAD2E14CFFEAFDF6BCA2FD3E3EC8" bold="true" box="[518,706,675,699]" pageId="7" pageNumber="8">Neurocranium.</emphasis>
Skull roof poorly ossified, forming a single, large fontanel bordered by mesethmoid, frontal, sphenotic-prootic-pterosphenoid, and parieto-supraoccipital (
<figureCitation id="A4BF2A45E14CFFEAFE00BCEFFDBF3F75" box="[496,579,750,774]" captionStart="FIGURE 3" captionStartId="8.[488,561,1276,1296]" captionTargetBox="[488,1459,171,1255]" captionTargetId="figure-32@8.[488,1459,171,1255]" captionTargetPageId="8" captionText="FIGURE 3 | Cranium, pectoral skeleton, and anterior portion of axial skeleton of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view. Ac, angular complex; AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Cl, cleithrum; Dt, dentary; Ep, epioccipital; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Le, lateral ethmoid; Me, mesethmoid; Mx, maxilla; Op, opercle; Osph, orbitosphenoid; Pop, preopercle; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptr, pectoral-fin rays; Ptscl, postemporosupracleithrum; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pt, pterotic; Pu, parurohyal; Qd, quadrate; Sph, sphenotic-prootic-pterosphenoid; Vh, ventral hypohyal; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." figureDoi="http://doi.org/10.5281/zenodo.13348886" httpUri="https://zenodo.org/record/13348886/files/figure.png" pageId="7" pageNumber="8">Figs. 3</figureCitation>
, 
<figureCitation id="A4BF2A45E14CFFEAFDA6BCEFFD9A3F75" box="[598,614,750,774]" captionStart="FIGURE 4" captionStartId="9.[488,561,828,848]" captionTargetBox="[488,1460,171,820]" captionTargetId="figure-23@9.[488,1460,171,820]" captionTargetPageId="9" captionText="FIGURE 4 | Cranium of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; anterior view; arrow indicates right mesethmoid cornu. AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Dth, dentary teeth; FPV, first post-Weberian vertebrae; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Lt, labial teeth; Me, mesethmoid; Mx, maxilla; Op, opercle; Pop, preopercle; Psoc, parieto-supraoccipital; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pu, parurohyal; Sph, sphenotic-prootic-pterosphenoid; SPV, second post-Weberian vertebrae; Vh, ventral hypohyal. Scale bar = 0.25 mm." figureDoi="http://doi.org/10.5281/zenodo.13348888" httpUri="https://zenodo.org/record/13348888/files/figure.png" pageId="7" pageNumber="8">4</figureCitation>
, 
<figureCitation id="A4BF2A45E14CFFEAFD89BCEFFD753F75" box="[633,649,750,774]" captionStart="FIGURE 7" captionStartId="11.[136,209,1388,1408]" captionTargetBox="[565,1459,731,1889]" captionTargetId="figure-55@11.[565,1459,731,1889]" captionTargetPageId="11" captionText="FIGURE 7 | Neurocranium and associated structures of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view; C. Ventral view. Boc, basioccipital; Ep, epioccipital; Fr, frontal; Le, lateral ethmoid; Me, mesethmoid; Osph, orbitosphenoid; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptscl, postemporo-supracleithrum; Pro, prootic; Pt, pterotic; Sph, sphenoticprootic-pterosphenoid; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." figureDoi="http://doi.org/10.5281/zenodo.13348896" httpUri="https://zenodo.org/record/13348896/files/figure.png" pageId="7" pageNumber="8">7</figureCitation>
). Mesethmoid T-shaped in dorsal view, with cornua strongly bent ventrolaterally. Mesethmoid axis extremely thin and covered posterodorsally by frontal. Frontal elongate and slender posteriorly, not contacting its antimere sagittally. Sphenotic, prootic, and pterosphenoid fused. Parieto-supraoccipital with curved anterolateral projections bordering posterolateral portion of cranial fontanel. Pterotic with small lateral process. Vomer constricted at middle portion and split posteriorly into three laminar processes. Middle posterior process longest, overlapping ventrally part of parasphenoid. Vomer with lateral tubercle for articulation with autopalatine. Lateral ethmoid tiny, laminar, restricted to neurocranial floor. Orbitosphenoid rod-like, gently curved dorsally, lacking any foramen, and restricted to neurocranial floor. Parasphenoid not overlapping basioccipital posteriorly. Basioccipital lacking anterior processes and not sutured to parasphenoid.
</paragraph>
<paragraph id="3C3B36C0E14CFFEAFDF6BAD2FC553A13" blockId="7.[487,1460,1235,1632]" pageId="7" pageNumber="8">
<emphasis id="0EF0EAD2E14CFFEAFDF6BAD2FDBE3898" bold="true" box="[518,578,1235,1259]" pageId="7" pageNumber="8">Jaws.</emphasis>
Premaxilla large, tapering distally, with conspicuous anteromedial ascending process articulating with mesethmoid cornu (
<figureCitation id="A4BF2A45E14CFFEAFC03BAF9FB9D3962" box="[1011,1121,1272,1297]" captionStart-0="FIGURE 2" captionStart-1="FIGURE 3" captionStart-2="FIGURE 4" captionStartId-0="4.[487,560,1350,1370]" captionStartId-1="8.[488,561,1276,1296]" captionStartId-2="9.[488,561,828,848]" captionTargetBox-0="[487,1459,191,1328]" captionTargetBox-1="[488,1459,171,1255]" captionTargetBox-2="[488,1460,171,820]" captionTargetId-0="figure-154@4.[487,1459,191,1328]" captionTargetId-1="figure-32@8.[488,1459,171,1255]" captionTargetId-2="figure-23@9.[488,1460,171,820]" captionTargetPageId-0="4" captionTargetPageId-1="8" captionTargetPageId-2="9" captionText-0="FIGURE 2 | Premaxilla and lower jaw of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Dorsal view; B. Ventral view; C. medial view, left side. Symphyseal teeth highlighted in yellow. Ac, angular complex; Dt, dentary; Dth, dentary teeth; Lt, labial teeth; Pmt, premaxillary teeth; Pmx, premaxilla. Scale bar = 0.3 mm." captionText-1="FIGURE 3 | Cranium, pectoral skeleton, and anterior portion of axial skeleton of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view. Ac, angular complex; AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Cl, cleithrum; Dt, dentary; Ep, epioccipital; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Le, lateral ethmoid; Me, mesethmoid; Mx, maxilla; Op, opercle; Osph, orbitosphenoid; Pop, preopercle; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptr, pectoral-fin rays; Ptscl, postemporosupracleithrum; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pt, pterotic; Pu, parurohyal; Qd, quadrate; Sph, sphenotic-prootic-pterosphenoid; Vh, ventral hypohyal; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." captionText-2="FIGURE 4 | Cranium of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; anterior view; arrow indicates right mesethmoid cornu. AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Dth, dentary teeth; FPV, first post-Weberian vertebrae; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Lt, labial teeth; Me, mesethmoid; Mx, maxilla; Op, opercle; Pop, preopercle; Psoc, parieto-supraoccipital; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pu, parurohyal; Sph, sphenotic-prootic-pterosphenoid; SPV, second post-Weberian vertebrae; Vh, ventral hypohyal. Scale bar = 0.25 mm." figureDoi-0="http://doi.org/10.5281/zenodo.13348884" figureDoi-1="http://doi.org/10.5281/zenodo.13348886" figureDoi-2="http://doi.org/10.5281/zenodo.13348888" httpUri-0="https://zenodo.org/record/13348884/files/figure.png" httpUri-1="https://zenodo.org/record/13348886/files/figure.png" httpUri-2="https://zenodo.org/record/13348888/files/figure.png" pageId="7" pageNumber="8">Figs. 2–4</figureCitation>
). Premaxillary teeth arranged in three arched rows. Three or four additional rows of labial teeth implanted in upperlip connective tissue just anterior to premaxilla. Posteromedial margin of premaxilla with 4–6 large, posteromedially-oriented symphyseal teeth. Tiny maxilla paralleling concave posterior profile of premaxilla and providing support to maxillary and rictal barbels. Lower jaw much wider than long. Coronoid process formed mostly by angular complex (= angulo-articulo-retroarticular). Dentary with numerous teeth arranged in five rows. Anteromedial margin of dentary with three offset posteromedially-oriented symphyseal teeth. Meckel’s cartilage small and located just ventral to the last row of dentary teeth. Coronomeckelian absent.
</paragraph>
<paragraph id="3C3B36C0E14CFFEAFDF6B892FB763BF8" blockId="7.[487,1460,1683,1931]" pageId="7" pageNumber="8">
<emphasis id="0EF0EAD2E14CFFEAFDF6B892FC533AD8" bold="true" box="[518,943,1683,1707]" pageId="7" pageNumber="8">Suspensorium and opercular series.</emphasis>
Autopalatine with broad, undivided anterior cartilage and two elongate processes: lateral and posterior (
<figureCitation id="A4BF2A45E14CFFEAFB7CB8B9FB083AA3" box="[1164,1268,1720,1744]" captionStart-0="FIGURE 3" captionStart-1="FIGURE 4" captionStart-2="FIGURE 5" captionStartId-0="8.[488,561,1276,1296]" captionStartId-1="9.[488,561,828,848]" captionStartId-2="10.[488,561,1238,1258]" captionTargetBox-0="[488,1459,171,1255]" captionTargetBox-1="[488,1460,171,820]" captionTargetBox-2="[488,1459,189,1216]" captionTargetId-0="figure-32@8.[488,1459,171,1255]" captionTargetId-1="figure-23@9.[488,1460,171,820]" captionTargetId-2="figure-33@10.[488,1459,189,1216]" captionTargetPageId-0="8" captionTargetPageId-1="9" captionTargetPageId-2="10" captionText-0="FIGURE 3 | Cranium, pectoral skeleton, and anterior portion of axial skeleton of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view. Ac, angular complex; AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Cl, cleithrum; Dt, dentary; Ep, epioccipital; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Le, lateral ethmoid; Me, mesethmoid; Mx, maxilla; Op, opercle; Osph, orbitosphenoid; Pop, preopercle; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptr, pectoral-fin rays; Ptscl, postemporosupracleithrum; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pt, pterotic; Pu, parurohyal; Qd, quadrate; Sph, sphenotic-prootic-pterosphenoid; Vh, ventral hypohyal; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." captionText-1="FIGURE 4 | Cranium of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; anterior view; arrow indicates right mesethmoid cornu. AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Dth, dentary teeth; FPV, first post-Weberian vertebrae; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Lt, labial teeth; Me, mesethmoid; Mx, maxilla; Op, opercle; Pop, preopercle; Psoc, parieto-supraoccipital; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pu, parurohyal; Sph, sphenotic-prootic-pterosphenoid; SPV, second post-Weberian vertebrae; Vh, ventral hypohyal. Scale bar = 0.25 mm." captionText-2="FIGURE 5 | Suspensorium and opercular series of Rhinotridens chromocaudatus, left side, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Lateral view; B. Medial view; arrow indicates distal process of hyomandibula. Hy, hyomandibular; Iop, interopercle; Op, opercle; Pop, preopercle; Qd, quadrate. Scale bar = 0.2 mm." figureDoi-0="http://doi.org/10.5281/zenodo.13348886" figureDoi-1="http://doi.org/10.5281/zenodo.13348888" figureDoi-2="http://doi.org/10.5281/zenodo.13348892" httpUri-0="https://zenodo.org/record/13348886/files/figure.png" httpUri-1="https://zenodo.org/record/13348888/files/figure.png" httpUri-2="https://zenodo.org/record/13348892/files/figure.png" pageId="7" pageNumber="8">Figs. 3-5</figureCitation>
). Quadrate with anterior portion laminar and posterior portion elongate. Metapterygoid absent. Hyomandibula with broad distal process directed anterodorsally. Preopercle with lateral condyle for articulation with interopercle. Interopercle expanded posteriorly and with dorsal concavity for articulation with opercle. Opercle with conspicuous adductor crest and dilatator process. Anteroventral process of opercle short.
</paragraph>
<caption id="68FB6648E143FFE5FE18BAFDFD0C3A48" ID-DOI="http://doi.org/10.5281/zenodo.13348886" ID-Zenodo-Dep="13348886" httpUri="https://zenodo.org/record/13348886/files/figure.png" pageId="8" pageNumber="9" startId="8.[488,561,1276,1296]" targetBox="[488,1459,171,1255]" targetPageId="8" targetType="figure">
<paragraph id="3C3B36C0E143FFE5FE18BAFDFD0C3A48" blockId="8.[487,1460,1276,1595]" pageId="8" pageNumber="9">
<emphasis id="0EF0EAD2E143FFE5FE18BAFDFD993963" bold="true" box="[488,613,1276,1296]" pageId="8" pageNumber="9">FIGURE 3 |</emphasis>
Cranium, pectoral skeleton, and anterior portion of axial skeleton of 
<taxonomicName id="FB844D43E143FFE5FAB4BAFDFD843946" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="8" pageNumber="9" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E143FFE5FAB4BAFDFD843946" bold="true" italics="true" pageId="8" pageNumber="9">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; 
<emphasis id="0EF0EAD2E143FFE5FB38BB20FB233947" bold="true" box="[1224,1247,1313,1332]" pageId="8" pageNumber="9">A.</emphasis>
Left lateral view; 
<emphasis id="0EF0EAD2E143FFE5FA6EBB23FA4F3946" bold="true" box="[1438,1459,1314,1333]" pageId="8" pageNumber="9">B.</emphasis>
Dorsal view. Ac, angular complex; AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Cl, cleithrum; Dt, dentary; Ep, epioccipital; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Le, lateral ethmoid; Me, mesethmoid; Mx, maxilla; Op, opercle; Osph, orbitosphenoid; Pop, preopercle; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptr, pectoral-fin rays; Ptscl, postemporosupracleithrum; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pt, pterotic; Pu, parurohyal; Qd, quadrate; Sph, sphenotic-prootic-pterosphenoid; Vh, ventral hypohyal; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm.
</paragraph>
</caption>
<paragraph id="3C3B36C0E143FFE5FDF6B892FCB43B15" blockId="8.[486,1462,1683,1894]" pageId="8" pageNumber="9">
<emphasis id="0EF0EAD2E143FFE5FDF6B892FD753AD8" bold="true" box="[518,649,1683,1707]" pageId="8" pageNumber="9">Hyoid bar.</emphasis>
Parurohyal with thin, elongate lateral arms and short posterior process (
<figureCitation id="A4BF2A45E143FFE5FE02B8B9FDC83AA2" box="[498,564,1720,1745]" captionStart="FIGURE 8" captionStartId="12.[488,561,828,848]" captionTargetBox="[488,1459,167,805]" captionTargetId="figure-33@12.[488,1459,167,805]" captionTargetPageId="12" captionText="FIGURE 8 | Hyoid arch of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL;A. Ventral view; B. Dorsal view; anterior to left. AC, anterior ceratohyal; Br, branchiostegal rays; PC, posterior ceratohyal; Pu, parurohyal; Vh, ventral hypohyal. Scale bar = 0.3 mm." figureDoi="http://doi.org/10.5281/zenodo.13348898" httpUri="https://zenodo.org/record/13348898/files/figure.png" pageId="8" pageNumber="9">Fig. 8</figureCitation>
). Ventral hypohyal with ventral fovea for articulation with parurohyal condyles. Dorsal hypohyal absent. Anterior ceratohyal constricted at midlength. Posterior ceratohyal short and compressed. Interhyal absent. Branchiostegal rays 6, approximately equal in length. Three branchiostegal rays articulating with anterior ceratohyal and three with posterior ceratohyal.
</paragraph>
<caption id="68FB6648E142FFE4FE18BD3DFCF43843" ID-DOI="http://doi.org/10.5281/zenodo.13348888" ID-Zenodo-Dep="13348888" httpUri="https://zenodo.org/record/13348888/files/figure.png" pageId="9" pageNumber="10" startId="9.[488,561,828,848]" targetBox="[488,1460,171,820]" targetPageId="9" targetType="figure">
<paragraph id="3C3B36C0E142FFE4FE18BD3DFCF43843" blockId="9.[486,1461,828,1072]" pageId="9" pageNumber="10">
<emphasis id="0EF0EAD2E142FFE4FE18BD3DFDB33F23" bold="true" box="[488,591,828,848]" pageId="9" pageNumber="10">FIGURE 4 |</emphasis>
Cranium of 
<taxonomicName id="FB844D43E142FFE4FD31BD3DFC383F23" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[705,964,828,848]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="9" pageNumber="10" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E142FFE4FD31BD3DFC383F23" bold="true" box="[705,964,828,848]" italics="true" pageId="9" pageNumber="10">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; anterior view; arrow indicates right mesethmoid cornu. AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Dth, dentary teeth; FPV, first post-Weberian vertebrae; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Lt, labial teeth; Me, mesethmoid; Mx, maxilla; Op, opercle; Pop, preopercle; Psoc, parieto-supraoccipital; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pu, parurohyal; Sph, sphenotic-prootic-pterosphenoid; SPV, second post-Weberian vertebrae; Vh, ventral hypohyal. Scale bar = 0.25 mm.
</paragraph>
</caption>
<paragraph id="3C3B36C0E142FFE4FDF6BA89FD173A48" blockId="9.[487,1461,1160,1595]" pageId="9" pageNumber="10">
<emphasis id="0EF0EAD2E142FFE4FDF6BA89FD6E38D2" bold="true" box="[518,658,1160,1185]" pageId="9" pageNumber="10">Gill arches.</emphasis>
Basibranchials and hypobranchials completely cartilaginous (
<figureCitation id="A4BF2A45E142FFE4FAADBA89FA5A38D2" box="[1373,1446,1160,1185]" captionStart="FIGURE 9" captionStartId="12.[488,561,1798,1818]" captionTargetBox="[639,1318,992,1747]" captionTargetId="figure-80@12.[527,1420,955,1775]" captionTargetPageId="12" captionText="FIGURE 9 | Gill arches of Rhinotridens chromocaudatus, digital illustration of c&amp;s specimen, dorsal view, paratype, MZUSP 128217,16.72 mm SL; right dorsal elements not shown. Bb1-4, basibranchials 1 to 4; Cb1-5, ceratobranchials 1 to 5; Eb1-4, epibranchials 1 to 4; Hb1-3, hypobranchials 1 to 3; Pb4, pharyngobranchial 4; Utp, upper pharyngeal tooth plate. Scale bar = 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.13348900" httpUri="https://zenodo.org/record/13348900/files/figure.png" pageId="9" pageNumber="10">Fig. 9</figureCitation>
). Basibranchial 1 globose and autogenous; basibranchials 2 and 3 conjoined in elongate anterior copula; basibranchial 4 nearly hexagonal. Hypobranchials 1 and 2 thinner than hypobranchial 3. Ceratobranchials ossified at middle portion, cartilaginous distally to tips. Ceratobranchials 1–3 with posterior laminar projections; ceratobranchial 5 more densely ossified than others in series and bearing two short strong teeth. Ceratobranchialhypobranchial articulations forming acute angle. Epibranchials 1–3 poorly ossified at middle portion, cartilaginous distally to tips. Epibranchial 1 with protruding uncinate process; epibranchials 2 and 3 slender, rod-like; epibranchial 4 more robust and densely ossified than others. Only cartilaginous pharyngobranchial 4 present. Large arched upper pharyngeal tooth plate associated with pharyngobranchial 4 and bearing 8–9 elongate, conical teeth.
</paragraph>
<paragraph id="3C3B36C0E142FFE4FDF6B86FFB1F3B68" blockId="9.[486,1461,1646,1819]" pageId="9" pageNumber="10">
<emphasis id="0EF0EAD2E142FFE4FDF6B86FFC1C3AF5" bold="true" box="[518,992,1646,1670]" pageId="9" pageNumber="10">Weberian apparatus and axial skeleton.</emphasis>
Weberian apparatus mostly encapsulated with narrow lateral opening (
<figureCitation id="A4BF2A45E142FFE4FCC2B892FC823AD8" box="[818,894,1683,1707]" captionStart="FIGURE 3" captionStartId="8.[488,561,1276,1296]" captionTargetBox="[488,1459,171,1255]" captionTargetId="figure-32@8.[488,1459,171,1255]" captionTargetPageId="8" captionText="FIGURE 3 | Cranium, pectoral skeleton, and anterior portion of axial skeleton of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view. Ac, angular complex; AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Cl, cleithrum; Dt, dentary; Ep, epioccipital; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Le, lateral ethmoid; Me, mesethmoid; Mx, maxilla; Op, opercle; Osph, orbitosphenoid; Pop, preopercle; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptr, pectoral-fin rays; Ptscl, postemporosupracleithrum; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pt, pterotic; Pu, parurohyal; Qd, quadrate; Sph, sphenotic-prootic-pterosphenoid; Vh, ventral hypohyal; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." figureDoi="http://doi.org/10.5281/zenodo.13348886" httpUri="https://zenodo.org/record/13348886/files/figure.png" pageId="9" pageNumber="10">Figs. 3</figureCitation>
, 
<figureCitation id="A4BF2A45E142FFE4FC7AB892FC663AD8" box="[906,922,1683,1707]" captionStart="FIGURE 7" captionStartId="11.[136,209,1388,1408]" captionTargetBox="[565,1459,731,1889]" captionTargetId="figure-55@11.[565,1459,731,1889]" captionTargetPageId="11" captionText="FIGURE 7 | Neurocranium and associated structures of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view; C. Ventral view. Boc, basioccipital; Ep, epioccipital; Fr, frontal; Le, lateral ethmoid; Me, mesethmoid; Osph, orbitosphenoid; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptscl, postemporo-supracleithrum; Pro, prootic; Pt, pterotic; Sph, sphenoticprootic-pterosphenoid; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." figureDoi="http://doi.org/10.5281/zenodo.13348896" httpUri="https://zenodo.org/record/13348896/files/figure.png" pageId="9" pageNumber="10">7</figureCitation>
). Neck-like lateral constriction of the Weberian capsule absent. Post-Weberian vertebrae 38. First post-Weberian vertebra nearly half length of subsequent one. First complete haemal arch and spine on third post-Weberian vertebrae. Pleural ribs two, second one not contacting parapophysis.
</paragraph>
<caption id="68FB6648E141FFE7FE18BAD7FD003928" ID-DOI="http://doi.org/10.5281/zenodo.13348892" ID-Zenodo-Dep="13348892" httpUri="https://zenodo.org/record/13348892/files/figure.png" pageId="10" pageNumber="11" startId="10.[488,561,1238,1258]" targetBox="[488,1459,189,1216]" targetPageId="10" targetType="figure">
<paragraph id="3C3B36C0E141FFE7FE18BAD7FD003928" blockId="10.[488,1461,1238,1371]" pageId="10" pageNumber="11">
<emphasis id="0EF0EAD2E141FFE7FE18BAD7FDA23899" bold="true" box="[488,606,1238,1258]" pageId="10" pageNumber="11">FIGURE 5 |</emphasis>
Suspensorium and opercular series of 
<taxonomicName id="FB844D43E141FFE7FC16BAD6FB133898" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[998,1263,1239,1259]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="10" pageNumber="11" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E141FFE7FC16BAD6FB133898" bold="true" box="[998,1263,1239,1259]" italics="true" pageId="10" pageNumber="11">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
, left side, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; 
<emphasis id="0EF0EAD2E141FFE7FC5ABAFDFC3D397C" bold="true" box="[938,961,1276,1295]" pageId="10" pageNumber="11">A.</emphasis>
Lateral view; 
<emphasis id="0EF0EAD2E141FFE7FBB8BAFDFBA1397C" bold="true" box="[1096,1117,1276,1295]" pageId="10" pageNumber="11">B.</emphasis>
Medial view; arrow indicates distal process of hyomandibula. Hy, hyomandibular; Iop, interopercle; Op, opercle; Pop, preopercle; Qd, quadrate. Scale bar = 0.2 mm.
</paragraph>
</caption>
<paragraph id="3C3B36C0E141FFE7FDF6BBB2FCE33A13" blockId="10.[484,1461,1459,1632]" pageId="10" pageNumber="11">
<emphasis id="0EF0EAD2E141FFE7FDF6BBB2FD4D39B8" bold="true" box="[518,689,1459,1483]" pageId="10" pageNumber="11">Paired girdles.</emphasis>
Posttemporo-supracleithrum tightly articulated with neurocranium (
<figureCitation id="A4BF2A45E141FFE7FE02BBD9FDC93982" box="[498,565,1496,1521]" captionStart="FIGURE 3" captionStartId="8.[488,561,1276,1296]" captionTargetBox="[488,1459,171,1255]" captionTargetId="figure-32@8.[488,1459,171,1255]" captionTargetPageId="8" captionText="FIGURE 3 | Cranium, pectoral skeleton, and anterior portion of axial skeleton of Rhinotridens chromocaudatus, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; A. Left lateral view; B. Dorsal view. Ac, angular complex; AC, anterior ceratohyal; Ap, autopalatine; Boc, basioccipital; Br, branchiostegal rays; Cl, cleithrum; Dt, dentary; Ep, epioccipital; Fr, frontal; Hy, hyomandibula; Iop, interopercle; Le, lateral ethmoid; Me, mesethmoid; Mx, maxilla; Op, opercle; Osph, orbitosphenoid; Pop, preopercle; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptr, pectoral-fin rays; Ptscl, postemporosupracleithrum; PC, posterior ceratohyal; Pmx, premaxilla; Pop, preopercle; Pt, pterotic; Pu, parurohyal; Qd, quadrate; Sph, sphenotic-prootic-pterosphenoid; Vh, ventral hypohyal; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm." figureDoi="http://doi.org/10.5281/zenodo.13348886" httpUri="https://zenodo.org/record/13348886/files/figure.png" pageId="10" pageNumber="11">Fig. 3</figureCitation>
). Cleithrum ossified only at its margins. Scapulo-coracoid mostly cartilaginous. Two pectoral radials fully cartilaginous.Basipterygia fused sagittally, mostly cartilaginous, with tiny ossifications restricted to distal tips of anterolateral and anteromedial spines. Pelvic splint absent (
<figureCitation id="A4BF2A45E141FFE7FD3EB849FCEE3A13" box="[718,786,1608,1632]" captionStart="FIGURE 6" captionStartId="11.[565,638,641,661]" captionTargetBox="[811,1147,235,601]" captionTargetId="figure-24@11.[565,1459,206,621]" captionTargetPageId="11" captionText="FIGURE 6 | Pelvic girdle of Rhinotridens chromocaudatus, digital illustration of c&amp;s specimen, ventral view, paratype, MZUSP 128217, 16.72 mm SL. Bpt, basipterygium. Scale bar = 0.15 mm." figureDoi="http://doi.org/10.5281/zenodo.13348894" httpUri="https://zenodo.org/record/13348894/files/figure.png" pageId="10" pageNumber="11">Fig. 6</figureCitation>
).
</paragraph>
<paragraph id="3C3B36C0E141FFE7FDF6B892FB253B15" blockId="10.[488,1460,1683,1894]" pageId="10" pageNumber="11">
<emphasis id="0EF0EAD2E141FFE7FDF6B892FCF33AD8" bold="true" box="[518,783,1683,1707]" pageId="10" pageNumber="11">Median-fins supports.</emphasis>
Dorsal-fin basal radials 8, distributed between neural spines of 21 
<superScript id="CBF19B88E141FFE7FDD1B8B6FDD73AB6" attach="left" box="[545,555,1719,1733]" fontSize="6" pageId="10" pageNumber="11">st</superScript>
and 26 
<superScript id="CBF19B88E141FFE7FD8EB8B6FD773AB6" attach="left" box="[638,651,1719,1733]" fontSize="6" pageId="10" pageNumber="11">th</superScript>
post-Weberian vertebrae. Anal-fin basal radials 19, distributed between haemal spines of 19 
<superScript id="CBF19B88E141FFE7FD3CB8DDFD253A99" attach="left" box="[716,729,1756,1770]" fontSize="6" pageId="10" pageNumber="11">th</superScript>
and 30 
<superScript id="CBF19B88E141FFE7FCC3B8DDFCBC3A99" attach="left" box="[819,832,1756,1770]" fontSize="6" pageId="10" pageNumber="11">th</superScript>
post-Weberian vertebrae. Uroneural continuous with compound caudal centrum (PU1+U1). Parhypural and hypurals 1–2 fused, forming lower hypural plate. Single upper hypural plate, presumably formed by fused hypurals 3–5. Uroneural anterodorsal to upper hypural plate. Epurals absent.
</paragraph>
<caption id="68FB6648E140FFE6FDC5BC80FA653EC8" ID-DOI="http://doi.org/10.5281/zenodo.13348894" ID-Zenodo-Dep="13348894" httpUri="https://zenodo.org/record/13348894/files/figure.png" pageId="11" pageNumber="12" startId="11.[565,638,641,661]" targetBox="[811,1147,235,601]" targetPageId="11" targetType="figure">
<paragraph id="3C3B36C0E140FFE6FDC5BC80FA653EC8" blockId="11.[565,1459,641,699]" pageId="11" pageNumber="12">
<emphasis id="0EF0EAD2E140FFE6FDC5BC80FD5A3EE6" bold="true" box="[565,678,641,661]" pageId="11" pageNumber="12">FIGURE 6 |</emphasis>
Pelvic girdle of 
<taxonomicName id="FB844D43E140FFE6FCB6BC80FBB13EE6" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[838,1101,641,661]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="11" pageNumber="12" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E140FFE6FCB6BC80FBB13EE6" bold="true" box="[838,1101,641,661]" italics="true" pageId="11" pageNumber="12">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
, digital illustration of c&amp;s specimen, ventral view, paratype, MZUSP 128217, 16.72 mm SL. Bpt, basipterygium. Scale bar = 0.15 mm.
</paragraph>
</caption>
<caption id="68FB6648E140FFE6FF78BB6DFE0C3B16" ID-DOI="http://doi.org/10.5281/zenodo.13348896" ID-Zenodo-Dep="13348896" httpUri="https://zenodo.org/record/13348896/files/figure.png" pageId="11" pageNumber="12" startId="11.[136,209,1388,1408]" targetBox="[565,1459,731,1889]" targetPageId="11" targetType="figure">
<paragraph id="3C3B36C0E140FFE6FF78BB6DFE0C3B16" blockId="11.[136,520,1388,1893]" pageId="11" pageNumber="12">
<emphasis id="0EF0EAD2E140FFE6FF78BB6DFEDB39F3" bold="true" box="[136,295,1388,1408]" pageId="11" pageNumber="12">FIGURE 7 |</emphasis>
Neurocranium and associated structures of 
<taxonomicName id="FB844D43E140FFE6FE68BB90FEE439B8" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="11" pageNumber="12" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E140FFE6FE68BB90FEE439B8" bold="true" italics="true" pageId="11" pageNumber="12">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; 
<emphasis id="0EF0EAD2E140FFE6FF78B800FF633A67" bold="true" box="[136,159,1537,1556]" pageId="11" pageNumber="12">A.</emphasis>
Left lateral view; 
<emphasis id="0EF0EAD2E140FFE6FE98B803FE823A66" bold="true" box="[360,382,1538,1557]" pageId="11" pageNumber="12">B.</emphasis>
Dorsal view; 
<emphasis id="0EF0EAD2E140FFE6FF78B826FF603A49" bold="true" box="[136,156,1575,1594]" pageId="11" pageNumber="12">C.</emphasis>
Ventral view. Boc, basioccipital; Ep, epioccipital; Fr, frontal; Le, lateral ethmoid; Me, mesethmoid; Osph, orbitosphenoid; Psph, parasphenoid; Psoc, parieto-supraoccipital; Ptscl, postemporo-supracleithrum; Pro, prootic; Pt, pterotic; Sph, sphenoticprootic-pterosphenoid; Vo, vomer; WeC, Weberian capsule. Scale bar = 0.3 mm.
</paragraph>
</caption>
<caption id="68FB6648E147FFE1FE18BD3DFB0C3FE8" ID-DOI="http://doi.org/10.5281/zenodo.13348898" ID-Zenodo-Dep="13348898" httpUri="https://zenodo.org/record/13348898/files/figure.png" pageId="12" pageNumber="13" startId="12.[488,561,828,848]" targetBox="[488,1459,167,805]" targetPageId="12" targetType="figure">
<paragraph id="3C3B36C0E147FFE1FE18BD3DFB0C3FE8" blockId="12.[487,1459,828,923]" pageId="12" pageNumber="13">
<emphasis id="0EF0EAD2E147FFE1FE18BD3DFDAF3F23" bold="true" box="[488,595,828,848]" pageId="12" pageNumber="13">FIGURE 8 |</emphasis>
Hyoid arch of 
<taxonomicName id="FB844D43E147FFE1FD11BD3DFC193F23" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[737,997,828,848]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E147FFE1FD11BD3DFC193F23" bold="true" box="[737,997,828,848]" italics="true" pageId="12" pageNumber="13">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
, µCT-scan images, paratype, MZUSP 128217, 16.37 mm SL; 
<emphasis id="0EF0EAD2E147FFE1FDC0BD60FDBB3F07" bold="true" box="[560,583,865,884]" pageId="12" pageNumber="13">A.</emphasis>
Ventral view; 
<emphasis id="0EF0EAD2E147FFE1FD3CBD63FD1D3F06" bold="true" box="[716,737,866,885]" pageId="12" pageNumber="13">B.</emphasis>
Dorsal view; anterior to left. AC, anterior ceratohyal; Br, branchiostegal rays; PC, posterior ceratohyal; Pu, parurohyal; Vh, ventral hypohyal. Scale bar = 0.3 mm.
</paragraph>
</caption>
<caption id="68FB6648E147FFE1FE18B907FC003BF8" ID-DOI="http://doi.org/10.5281/zenodo.13348900" ID-Zenodo-Dep="13348900" httpUri="https://zenodo.org/record/13348900/files/figure.png" pageId="12" pageNumber="13" startId="12.[488,561,1798,1818]" targetBox="[639,1318,992,1747]" targetPageId="12" targetType="figure">
<paragraph id="3C3B36C0E147FFE1FE18B907FC003BF8" blockId="12.[486,1460,1798,1931]" pageId="12" pageNumber="13">
<emphasis id="0EF0EAD2E147FFE1FE18B907FDAF3B69" bold="true" box="[488,595,1798,1818]" pageId="12" pageNumber="13">FIGURE 9 |</emphasis>
Gill arches of 
<taxonomicName id="FB844D43E147FFE1FD2DB906FC1E3B68" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[733,994,1799,1819]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="12" pageNumber="13" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E147FFE1FD2DB906FC1E3B68" bold="true" box="[733,994,1799,1819]" italics="true" pageId="12" pageNumber="13">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
, digital illustration of c&amp;s specimen, dorsal view, paratype, MZUSP 128217,16.72 mm SL; right dorsal elements not shown. Bb1-4, basibranchials 1 to 4; Cb1-5, ceratobranchials 1 to 5; Eb1-4, epibranchials 1 to 4; Hb1-3, hypobranchials 1 to 3; Pb4, pharyngobranchial 4; Utp, upper pharyngeal tooth plate. Scale bar = 0.1 mm.
</paragraph>
</caption>
<paragraph id="3C3B36C0E146FFE0FDF6BEBFFBBD3E03" blockId="13.[486,1460,190,624]" pageId="13" pageNumber="14">
<emphasis id="0EF0EAD2E146FFE0FDF6BEBFFCE43CA5" bold="true" box="[518,792,190,214]" pageId="13" pageNumber="14">Coloration in alcohol.</emphasis>
Unpigmented body background uniformly white to pale yellow (
<figureCitation id="A4BF2A45E146FFE0FDB1BEE2FD7C3C88" box="[577,640,227,251]" captionStart="FIGURE 1" captionStartId="3.[488,561,1836,1856]" captionTargetBox="[488,1459,1136,1814]" captionTargetId="figure-229@3.[488,1459,1136,1814]" captionTargetPageId="3" captionText="FIGURE 1. Rhinotridens chromocaudatus, new genus and species, holotype, MZUSP 128216, 17.57 mm SL. Brazil, Amazonas, rio Ipixuna, tributary of the rio Purus, rio Solimões basin. Scale bar = 2.0 mm." figureDoi="http://doi.org/10.5281/zenodo.13348882" httpUri="https://zenodo.org/record/13348882/files/figure.png" pageId="13" pageNumber="14">Fig. 1</figureCitation>
). Dark brown melanophores distributed in specific regions of head, trunk, and fins. Melanophores on skin of head clustered around cranial fontanel, along sagittal region and lateral borders of snout, and on opercular region. Pigments on connective membrane covering brain visible externally through cranial fontanel and translucent skin. Melanophores scattered along skin of dorsosagittal region of trunk, more densely between occiput and dorsal fin. Midlateral line of trunk with thin line of melanophores on skin, gradually expanding toward caudal-fin base. Caudal fin with broad midlateral horizontal dark brown stripe. Other fins with scattered melanophores concentrated at their bases and others irregularly scattered amid interradial membranes. Melanophores at dorsal region of peritoneum externally visible through thin abdominal wall, forming ventrolateral stripe between pectoral region and anus.
</paragraph>
<paragraph id="3C3B36C0E146FFE0FDF6BCA2FAA13E93" blockId="13.[488,1459,675,736]" pageId="13" pageNumber="14">
<emphasis id="0EF0EAD2E146FFE0FDF6BCA2FD1B3EC8" bold="true" box="[518,743,675,699]" pageId="13" pageNumber="14">Coloration in life.</emphasis>
Body background mostly translucent with a faint superficial iridescent blue tint. Dark pigmentation as described in “Coloration in alcohol”.
</paragraph>
<paragraph id="3C3B36C0E146FFE0FDF6BD12FD6B3F05" blockId="13.[488,1459,787,886]" pageId="13" pageNumber="14">
<emphasis id="0EF0EAD2E146FFE0FDF6BD12FCAD3F58" bold="true" box="[518,849,787,811]" pageId="13" pageNumber="14">Geographical distribution.</emphasis>
<taxonomicName id="FB844D43E146FFE0FC92BD12FB623F58" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[866,1182,787,811]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="13" pageNumber="14" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E146FFE0FC92BD12FB623F58" box="[866,1182,787,811]" italics="true" pageId="13" pageNumber="14">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
is known from three tributaries (rio Ipixuna, rio Açuã, and lago Aiapuá) of the rio Purus, Amazon basin, 
<collectingCountry id="44937650E146FFE0FE18BD5FFDD63F05" box="[488,554,862,886]" name="Brazil" pageId="13" pageNumber="14">Brazil</collectingCountry>
(
<figureCitation id="A4BF2A45E146FFE0FDC9BD5FFD763F05" box="[569,650,862,886]" captionStart="FIGURE 10" captionStartId="13.[488,561,1798,1818]" captionTargetBox="[489,1455,922,1776]" captionTargetId="figure-207@13.[488,1459,917,1779]" captionTargetPageId="13" captionText="FIGURE 10 | Geographic distribution of Rhinotridens chromocaudatus. White dot indicates the typelocality, each symbol may represent than one lot or locality." figureDoi="http://doi.org/10.5281/zenodo.13348902" httpUri="https://zenodo.org/record/13348902/files/figure.png" pageId="13" pageNumber="14">Fig. 10</figureCitation>
).
</paragraph>
<caption id="68FB6648E146FFE0FE18B907FBE73B33" ID-DOI="http://doi.org/10.5281/zenodo.13348902" ID-Zenodo-Dep="13348902" httpUri="https://zenodo.org/record/13348902/files/figure.png" pageId="13" pageNumber="14" startId="13.[488,561,1798,1818]" targetBox="[489,1455,922,1776]" targetPageId="13" targetType="figure">
<paragraph id="3C3B36C0E146FFE0FE18B907FBE73B33" blockId="13.[488,1459,1798,1856]" pageId="13" pageNumber="14">
<emphasis id="0EF0EAD2E146FFE0FE18B907FD943B69" bold="true" box="[488,616,1798,1818]" pageId="13" pageNumber="14">FIGURE 10 |</emphasis>
Geographic distribution of 
<taxonomicName id="FB844D43E146FFE0FC8DB906FB7A3B68" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[893,1158,1799,1819]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="13" pageNumber="14" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E146FFE0FC8DB906FB7A3B68" bold="true" box="[893,1158,1799,1819]" italics="true" pageId="13" pageNumber="14">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
. White dot indicates the typelocality, each symbol may represent than one lot or locality.
</paragraph>
</caption>
<paragraph id="3C3B36C0E145FFE3FDF6BEBFFAE43E38" blockId="14.[485,1460,190,587]" pageId="14" pageNumber="15">
<emphasis id="0EF0EAD2E145FFE3FDF6BEBFFD2E3CA5" bold="true" box="[518,722,190,214]" pageId="14" pageNumber="15">Ecological notes.</emphasis>
The rio Ipixuna at the type-locality is a medium sized blackwater river (
<quantity id="FB7C9B25E145FFE3FDD9BEE2FD943C88" box="[553,616,227,251]" metricMagnitude="0" metricUnit="m" metricValue="6.5" pageId="14" pageNumber="15" unit="m" value="6.5">6.5 m</quantity>
wide) with slow water flow (
<figureCitation id="A4BF2A45E145FFE3FC56BEE2FC093C88" box="[934,1013,227,251]" captionStart="FIGURE 11" captionStartId="14.[488,561,1761,1781]" captionTargetBox="[488,1459,1074,1739]" captionTargetId="figure-267@14.[488,1459,1074,1739]" captionTargetPageId="14" captionText="FIGURE 11 | Type-locality of Rhinotridens chromocaudatus; 07°30’37”S 63°20’23”W, rio Ipixuna, rio Purus drainage, rio Amazonas basin, Humaitá Municipality, Amazonas State, Brazil." figureDoi="http://doi.org/10.5281/zenodo.13348908" httpUri="https://zenodo.org/record/13348908/files/figure.png" pageId="14" pageNumber="15">Fig. 11</figureCitation>
). Sampling took place during ebb season when some beaches were already appearing. Specimens of 
<taxonomicName id="FB844D43E145FFE3FB72BF09FA483D53" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[1154,1460,264,288]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E145FFE3FB72BF09FA483D53" box="[1154,1460,264,288]" italics="true" pageId="14" pageNumber="15">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
were collected during the evening (18:00–20:00) in the middle-upper water column in moderate abundance near the margin. The bottom was muddy with patches of leaf litter. 
<taxonomicName id="FB844D43E145FFE3FD93BF79FC663DE3" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[611,922,376,400]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E145FFE3FD93BF79FC663DE3" box="[611,922,376,400]" italics="true" pageId="14" pageNumber="15">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
was captured with the catfishes 
<taxonomicName id="FB844D43E145FFE3FAD4BF79FCF93DC5" authority="(Cope, 1874)" baseAuthorityName="Cope" baseAuthorityYear="1874" family="Aspredinidae" genus="Bunocephalus" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="coracoideus">
<emphasis id="0EF0EAD2E145FFE3FAD4BF79FDA63DC5" italics="true" pageId="14" pageNumber="15">Bunocephalus coracoideus</emphasis>
(Cope, 1874)
</taxonomicName>
, 
<taxonomicName id="FB844D43E145FFE3FCE8BF9FFACE3DC5" authority="Nijssen &amp; Isbrucker, 1980" authorityName="Nijssen &amp; Isbrucker" authorityYear="1980" box="[792,1330,414,438]" family="Callichthyidae" genus="Corydoras" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="robustus">
<emphasis id="0EF0EAD2E145FFE3FCE8BF9FFC1B3DC5" box="[792,999,414,438]" italics="true" pageId="14" pageNumber="15">Corydoras robustus</emphasis>
Nijssen &amp; Isbrücker, 1980
</taxonomicName>
, 
<taxonomicName id="FB844D43E145FFE3FAB5BF9FFCE83DA8" authority="(Gunther, 1864)" baseAuthorityName="Gunther" baseAuthorityYear="1864" family="Loricariidae" genus="Farlowella" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="amazona">
<emphasis id="0EF0EAD2E145FFE3FAB5BF9FFDB43DA8" italics="true" pageId="14" pageNumber="15">Farlowella amazona</emphasis>
(Günther, 1864)
</taxonomicName>
, 
<taxonomicName id="FB844D43E145FFE3FCD6BFC2FB343DA8" authority="Bockmann, 1994" authorityName="Bockmann" authorityYear="1994" box="[806,1224,451,475]" family="Heptapteridae" genus="Mastiglanis" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="asopos">
<emphasis id="0EF0EAD2E145FFE3FCD6BFC2FC0C3DA8" box="[806,1008,451,475]" italics="true" pageId="14" pageNumber="15">Mastiglanis asopos</emphasis>
Bockmann, 1994
</taxonomicName>
, 
<taxonomicName id="FB844D43E145FFE3FB2ABFC2FD4B3E72" authority="Eigenmann, 1912" authorityName="Eigenmann" authorityYear="1912" family="Pseudopimelodidae" genus="Microglanis" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="poecilus">
<emphasis id="0EF0EAD2E145FFE3FB2ABFC2FA4F3DA8" box="[1242,1459,451,475]" italics="true" pageId="14" pageNumber="15">Microglanis poecilus</emphasis>
Eigenmann, 1912
</taxonomicName>
, 
<taxonomicName id="FB844D43E145FFE3FD38BFE9FB2A3E72" authority="(Steindachner, 1882)" baseAuthorityName="Steindachner" baseAuthorityYear="1882" box="[712,1238,488,513]" family="Trichomycteridae" genus="Ochmacanthus" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="reinhardtii">
<emphasis id="0EF0EAD2E145FFE3FD38BFE9FC253E73" box="[712,985,488,512]" italics="true" pageId="14" pageNumber="15">Ochmacanthus reinhardtii</emphasis>
(Steindachner, 1882)
</taxonomicName>
, 
<taxonomicName id="FB844D43E145FFE3FB17BFE9FCAE3E55" authority="Sousa &amp; Rapp Py-Daniel, 2005" authorityName="Sousa &amp; Rapp Py-Daniel" authorityYear="2005" family="Doradidae" genus="Physopyxis" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="ananas">
<emphasis id="0EF0EAD2E145FFE3FB17BFE9FA4F3E73" box="[1255,1459,488,512]" italics="true" pageId="14" pageNumber="15">Physopyxis ananas</emphasis>
Sousa &amp; Rapp Py-Daniel, 2005
</taxonomicName>
, 
<taxonomicName id="FB844D43E145FFE3FC91BC0EFBCF3E55" authority="Cope, 1872" authorityName="Cope" authorityYear="1872" box="[865,1075,526,550]" family="Doradidae" genus="Physopyxis" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="lyra">
<emphasis id="0EF0EAD2E145FFE3FC91BC0EFC5E3E55" box="[865,930,526,550]" italics="true" pageId="14" pageNumber="15">P. lyra</emphasis>
Cope, 1872
</taxonomicName>
, 
<taxonomicName id="FB844D43E145FFE3FBB2BC0FFDD53E38" authority="(Gunther, 1868)" baseAuthorityName="Gunther" baseAuthorityYear="1868" family="Loricariidae" genus="Rineloricaria" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="lanceolata">
<emphasis id="0EF0EAD2E145FFE3FBB2BC0FFAC53E55" box="[1090,1337,526,550]" italics="true" pageId="14" pageNumber="15">Rineloricaria lanceolata</emphasis>
(Günther, 1868)
</taxonomicName>
, and 
<taxonomicName id="FB844D43E145FFE3FD95BC32FAE83E38" authority="Rocha, de Oliveira &amp; Rapp Py-Daniel, 2008" authorityName="Rocha, de Oliveira &amp; Rapp Py-Daniel" authorityYear="2008" box="[613,1300,563,587]" family="Scoloplacidae" genus="Scoloplax" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="baskini">
<emphasis id="0EF0EAD2E145FFE3FD95BC32FCE63E38" box="[613,794,563,587]" italics="true" pageId="14" pageNumber="15">Scoloplax baskini</emphasis>
Rocha, de Oliveira &amp; Rapp Py-Daniel, 2008
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="749E654BE145FFE3FDF6BC7FFACA3F95" pageId="14" pageNumber="15" type="etymology">
<paragraph id="3C3B36C0E145FFE3FDF6BC7FFAF83E93" blockId="14.[486,1459,637,737]" pageId="14" pageNumber="15">
<emphasis id="0EF0EAD2E145FFE3FDF6BC7FFD6D3EE5" bold="true" box="[518,657,638,662]" pageId="14" pageNumber="15">Etymology.</emphasis>
From 
<emphasis id="0EF0EAD2E145FFE3FD1BBC7FFCC93EE5" box="[747,821,638,662]" italics="true" pageId="14" pageNumber="15">chroma</emphasis>
, latinized form of the Greek word 
<emphasis id="0EF0EAD2E145FFE3FB00BC7FFAC23EE5" box="[1264,1342,638,662]" italics="true" pageId="14" pageNumber="15">khrôma</emphasis>
(ΧΡῶμα), meaning color, and 
<emphasis id="0EF0EAD2E145FFE3FD35BCA2FCFC3EC8" box="[709,768,675,699]" italics="true" pageId="14" pageNumber="15">cauda</emphasis>
, a Latin word meaning tail. In reference to the presence of the dark brown pigmentation in the middle of the caudal fin. An adjective.
</paragraph>
<paragraph id="3C3B36C0E145FFE3FDF6BD12FACA3F95" blockId="14.[487,1460,787,998]" pageId="14" pageNumber="15">
<emphasis id="0EF0EAD2E145FFE3FDF6BD12FD003F58" bold="true" box="[518,764,787,811]" pageId="14" pageNumber="15">Conservation status.</emphasis>
<taxonomicName id="FB844D43E145FFE3FCF6BD12FBC63F58" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[774,1082,787,811]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E145FFE3FCF6BD12FBC63F58" box="[774,1082,787,811]" italics="true" pageId="14" pageNumber="15">Rhinotridens chromocaudatus</emphasis>
</taxonomicName>
was captured in localities of the lower rio Purus, including within the Floresta Estadual Tapauá and Reserva Sustentável Piagaçu-Purus. No significant threats to the species have been identified in the area of occurrence. Consequently, 
<taxonomicName id="FB844D43E145FFE3FCCEBD85FBFE3FE8" authorityName="Datovo &amp; Ochoa &amp; Vita &amp; Presti &amp; Ohara &amp; Pinna" authorityYear="2023" box="[830,1026,899,923]" family="Trichomycteridae" genus="Rhinotridens" kingdom="Animalia" order="Siluriformes" pageId="14" pageNumber="15" phylum="Chordata" rank="species" species="chromocaudatus">
<emphasis id="0EF0EAD2E145FFE3FCCEBD85FBFE3FE8" box="[830,1026,899,923]" italics="true" pageId="14" pageNumber="15">R. chromocaudatus</emphasis>
</taxonomicName>
can be provisionally classified as Least Concern (LC) according to the categories and criteria of the International Union for Conservation of Nature (IUCN Standards and Petitions Committee, 2022).
</paragraph>
</subSubSection>
</treatment>
</document>