Artigo

A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family.

Trichomycterus crassicaudatus is described as a new species from the Rio Iguac¸u basin in southern Brazil. The new species has an exceptionally deep posterior region of the body (caudal peduncle depth 22.8–25.4% SL), resulting in an overall shape which distinguishes it at once from all other membe...

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Autor principal: Wosiacki, Wolmar Benjamin
Outros Autores: Pinna, Mário de
Grau: Artigo
Idioma: English
Publicado em: American Society of Ichthyologists and Herpetologists 2010
Assuntos:
Peixes
Trichomycterus crassicaudatus
Siluriformes
Trichomycteridae
Catfish
Acesso em linha: http://repositorio.museu-goeldi.br/handle/mgoeldi/286
id ir-mgoeldi-286
recordtype dspace
spelling ir-mgoeldi-2862019-07-17T17:58:33Z A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family. Wosiacki, Wolmar Benjamin Pinna, Mário de Peixes Trichomycterus crassicaudatus Siluriformes Trichomycteridae Catfish Trichomycterus crassicaudatus is described as a new species from the Rio Iguac¸u basin in southern Brazil. The new species has an exceptionally deep posterior region of the body (caudal peduncle depth 22.8–25.4% SL), resulting in an overall shape which distinguishes it at once from all other members of the Trichomycteridae. The caudal fin of the species is broad-based and forked, a shape also distinguishing it from all other species in the family. A number of autapomorphic modifications of T. crassicaudatus are associated with the deepening of the caudal region, including an elongation of the hemal and neural spines of the vertebrae at the middle of the caudal peduncle. Phylogenetic relationships of the new species are yet unresolved, but it shares a similar color pattern and a thickening of caudal-fin procurrent rays with T. stawiarski, a poorly-known species also from the Rio Iguac¸u basin. Coloration and body shape also include similarities with T. lewi from Venezuela. 2010-12-27T14:13:07Z 2010-12-27T14:13:07Z 2008 artigo WOSIACKI, Wolmar Benjamin; PINNA, Mário de. .A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family. Copeia, n. 2, p. 273-278, 2008. 0045-8511 http://repositorio.museu-goeldi.br/handle/mgoeldi/286 en application/pdf American Society of Ichthyologists and Herpetologists
institution Repositório Institucional - Museu Paraense Emílio Goeldi
collection RepositorioEmilioGoeldi
language English
topic Peixes
Trichomycterus crassicaudatus
Siluriformes
Trichomycteridae
Catfish
spellingShingle Peixes
Trichomycterus crassicaudatus
Siluriformes
Trichomycteridae
Catfish
Wosiacki, Wolmar Benjamin
A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family.
topic_facet Peixes
Trichomycterus crassicaudatus
Siluriformes
Trichomycteridae
Catfish
description Trichomycterus crassicaudatus is described as a new species from the Rio Iguac¸u basin in southern Brazil. The new species has an exceptionally deep posterior region of the body (caudal peduncle depth 22.8–25.4% SL), resulting in an overall shape which distinguishes it at once from all other members of the Trichomycteridae. The caudal fin of the species is broad-based and forked, a shape also distinguishing it from all other species in the family. A number of autapomorphic modifications of T. crassicaudatus are associated with the deepening of the caudal region, including an elongation of the hemal and neural spines of the vertebrae at the middle of the caudal peduncle. Phylogenetic relationships of the new species are yet unresolved, but it shares a similar color pattern and a thickening of caudal-fin procurrent rays with T. stawiarski, a poorly-known species also from the Rio Iguac¸u basin. Coloration and body shape also include similarities with T. lewi from Venezuela.
format Artigo
author Wosiacki, Wolmar Benjamin
author2 Pinna, Mário de
author2Str Pinna, Mário de
title A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family.
title_short A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family.
title_full A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family.
title_fullStr A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family.
title_full_unstemmed A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family.
title_sort new species of the neotropical catfish genus trichomycterus (siluriformes: trichomycteridae) representing a new body shape for the family.
publisher American Society of Ichthyologists and Herpetologists
publishDate 2010
url http://repositorio.museu-goeldi.br/handle/mgoeldi/286
_version_ 1787135763406651392
score 11.674684

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