Data/hora: 05/06/2024 17:14:10

Provedor de dados: | 83
País: | Brazil
Título: | Taxonomic review of the genus Trichomycterus Valenciennes (Siluriformes: Trichomycteridae) from the laguna dos Patos system, Southern Brazil
Autores: | Ferrer,Juliano; Malabarba,Luiz R.
Data: | 2013-06-01
Ano: | 2013
Palavras-chave: | Endemism; Neotropical; Rio Jacuí basin; Trichomycterus tropeiro; Trichomycterinae.
Resumo: | The species of the genus Trichomycterus inhabiting the laguna dos Patos system are reviewed and five species are recognized. Trichomycterus tropeiro Ferrer &amp; Malabarba has a restricted range and is endemic to the uppermost portion of the rio das Antas. Trichomycterus balios, n. sp., is distributed in the upper portion of the rio das Antas and rio Caí basins. Trichomycterus diatropoporos, n. sp., is endemic to the rio da Prata basin, a tributary of the rio das Antas. Trichomycterus poikilos, n. sp., is widely distributed in the upper portion of the rio Jacuí basin and tributaries of the rio Taquari-Antas. Trichomycterus brachykechenos, n. sp., is endemic to the upper portion of the rio dos Sinos. The new species are distinguishable from most congeners, except for T. davisi, T. mboycy, T. naipi, T. payaya, T. papilliferus, T. perkos, T. plumbeus, and T. tropeiro by the lower number of pectoral-fin rays (I+5-6) and by the first pectoral-fin ray not prolonged as a filament. Other characters distinguish the new taxa from these eight species. The distribution of the genus in the laguna dos Patos system is discussed and a taxonomic key is provided.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000200217
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/S1679-62252013000200001
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.11 n.2 2013
Fonte: | info:eu-repo/semantics/openAccess