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Issue: Vol. 1269 No. 1: 24 Jul. 2006
Type: Articles
Published: 2006-07-20
DOI: 10.11646/zootaxa.1269.1.3
Page range: 43–49
Abstract views: 35
PDF downloaded: 2

Trichomycterus pauciradiatus, a new catfish species from the upper rio Paraná basin, southeastern Brazil (Siluriformes: Trichomycteridae)

Laboratório de Ictiologia Geral e Aplicada, Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68049, CEP 21944-970, Rio de Janeiro, Brasil
Laboratório de Ictiologia Geral e Aplicada, Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68049, CEP 21944-970, Rio de Janeiro, Brasil
Pisces catfishes Neotropical new species rio Paraná trichomycterinae taxonomy

Abstract

Trichomycterus pauciradiatus, new species, is described from the rio Paraná basin, southeastern Brazil. It differs from all other species of Trichomycterus by having four pelvic-fin rays. The new species is possibly closely related to T. reinhardti (Eigenmann, 1918), since both share a unique color pattern consisting of a yellow body with a broad dark brown stripe along the lateral midline.  The stripe is bordered dorsally by a longitudinal bright yellow zone lacking dark chromatophores.

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