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Por favor, use este identificador para citar o enlazar este ítem: https://repositorio.museu-goeldi.br/handle/mgoeldi/286
metadata.dc.type: artigo
Título : A new species of the neotropical catfish genus Trichomycterus (Siluriformes: Trichomycteridae) representing a new body shape for the family.
metadata.dc.creator: Wosiacki, Wolmar Benjamin
Pinna, Mário de
Resumen : 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.
Palabras clave : Peixes
Trichomycterus crassicaudatus
Siluriformes
Trichomycteridae
Catfish
Editorial : American Society of Ichthyologists and Herpetologists
Citación : 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.
URI : http://repositorio.museu-goeldi.br/handle/mgoeldi/286
Fecha de publicación : 2008
Aparece en las colecciones: Zoologia - Artigos Publicados em Periódicos

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Copeia n2 2008 WOSIACKI.pdf928,09 kBAdobe PDFVista previa
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Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons

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