New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin

Detalhes bibliográficos
Autor(a) principal: Silva,Gabriel S. C.
Data de Publicação: 2022
Outros Autores: Ochoa,Luz E., Castro,Íthalo S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Neotropical ichthyology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252022000200203
Resumo: Abstract Heptapteridae is a diverse group of catfishes composed of 231 valid species endemic to the Neotropical region, recognized in two subfamilies: Rhamdiinae and Heptapterinae. Phenacorhamdia is a Heptapterinae member and currently has 13 valid species broadly distributed throughout the main river basins of South America. Here we described a new species of Phenacorhamdia from the Xingu River basin. Morphological data were obtained from 30 specimens under 23 morphometric measures and 6 meristic counts. The new species differs from congeners based on the exclusive combination of the following diagnostic characters: atypical mottled colored body and all fins with interradial membranes mottled pigmented; multicuspid teeth; maxillary barbel reaching pectoral-fin origin; lacking a short extension of the first pectoral-fin ray; caudal fin lobes extremely elongated and pointed; and 43−45 total vertebrae.
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spelling New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basinAmazon River basinBrazilian ShieldCatfishesTaxonomyAbstract Heptapteridae is a diverse group of catfishes composed of 231 valid species endemic to the Neotropical region, recognized in two subfamilies: Rhamdiinae and Heptapterinae. Phenacorhamdia is a Heptapterinae member and currently has 13 valid species broadly distributed throughout the main river basins of South America. Here we described a new species of Phenacorhamdia from the Xingu River basin. Morphological data were obtained from 30 specimens under 23 morphometric measures and 6 meristic counts. The new species differs from congeners based on the exclusive combination of the following diagnostic characters: atypical mottled colored body and all fins with interradial membranes mottled pigmented; multicuspid teeth; maxillary barbel reaching pectoral-fin origin; lacking a short extension of the first pectoral-fin ray; caudal fin lobes extremely elongated and pointed; and 43−45 total vertebrae.Sociedade Brasileira de Ictiologia2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252022000200203Neotropical Ichthyology v.20 n.2 2022reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/1982-0224-2021-0143info:eu-repo/semantics/openAccessSilva,Gabriel S. C.Ochoa,Luz E.Castro,Íthalo S.eng2022-05-20T00:00:00Zoai:scielo:S1679-62252022000200203Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2022-05-20T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false
dc.title.none.fl_str_mv New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
title New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
spellingShingle New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
Silva,Gabriel S. C.
Amazon River basin
Brazilian Shield
Catfishes
Taxonomy
title_short New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
title_full New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
title_fullStr New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
title_full_unstemmed New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
title_sort New species of Phenacorhamdia (Siluriformes: Heptapteridae) from the Xingu River basin
author Silva,Gabriel S. C.
author_facet Silva,Gabriel S. C.
Ochoa,Luz E.
Castro,Íthalo S.
author_role author
author2 Ochoa,Luz E.
Castro,Íthalo S.
author2_role author
author
dc.contributor.author.fl_str_mv Silva,Gabriel S. C.
Ochoa,Luz E.
Castro,Íthalo S.
dc.subject.por.fl_str_mv Amazon River basin
Brazilian Shield
Catfishes
Taxonomy
topic Amazon River basin
Brazilian Shield
Catfishes
Taxonomy
description Abstract Heptapteridae is a diverse group of catfishes composed of 231 valid species endemic to the Neotropical region, recognized in two subfamilies: Rhamdiinae and Heptapterinae. Phenacorhamdia is a Heptapterinae member and currently has 13 valid species broadly distributed throughout the main river basins of South America. Here we described a new species of Phenacorhamdia from the Xingu River basin. Morphological data were obtained from 30 specimens under 23 morphometric measures and 6 meristic counts. The new species differs from congeners based on the exclusive combination of the following diagnostic characters: atypical mottled colored body and all fins with interradial membranes mottled pigmented; multicuspid teeth; maxillary barbel reaching pectoral-fin origin; lacking a short extension of the first pectoral-fin ray; caudal fin lobes extremely elongated and pointed; and 43−45 total vertebrae.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252022000200203
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252022000200203
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1982-0224-2021-0143
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
dc.source.none.fl_str_mv Neotropical Ichthyology v.20 n.2 2022
reponame:Neotropical ichthyology (Online)
instname:Sociedade Brasileira de Ictiologia (SBI)
instacron:SBI
instname_str Sociedade Brasileira de Ictiologia (SBI)
instacron_str SBI
institution SBI
reponame_str Neotropical ichthyology (Online)
collection Neotropical ichthyology (Online)
repository.name.fl_str_mv Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)
repository.mail.fl_str_mv ||neoichth@nupelia.uem.br
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