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Issue: Vol. 1724 No. 1: 10 Mar. 2008
Type: Article
Published: 2008-03-10
DOI: 10.11646/zootaxa.1724.1.2
Page range: 52–60
Abstract views: 66
PDF downloaded: 2

A new Hemigrammus Gill from upper rio Parana system, Southeastern Brazil (Characiformes: Characidae)

UNESP, Universidade Estadual Paulista, Laboratório de Ictiologia, Departamento de Zoologia e Botânica. Rua Cristóvão Colombo, 2265, CEP 15054-000, São José do Rio Preto, SP, Brasil
UFRGS, Universidade Federal do Rio Grande do Sul, Instituto de Biociências, Laboratório de Ictiologia, Departamento de Zoologia e Programa de Pós-Graduação em Biologia Animal. Avenida Bento Gonçalves, 9500, bloco IV, prédio 43435, CEP 91501-970, Porto Alegre, RS
UNESP, Universidade Estadual Paulista, Laboratório de Ictiologia, Departamento de Zoologia e Botânica. Rua Cristóvão Colombo, 2265, CEP 15054-000, São José do Rio Preto, SP, Brasil
IBAMA, Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis, Gerência Executiva de Juína, Avenida dos Jambos s/n°, Centro, Juína, MT, Brasil, CEP 78.320-000
Fish Neotropical region South America rio Grande taxonomy

Abstract

Hemigrammus parana is described from the upper rio Paraná system, in the area of influence of the Ilha Solteira reservoir in states of Mato Grosso do Sul, Minas Gerais and São Paulo, southeastern Brazil. The new species differs from all congeners by the combination of the following characters: absence of humeral spot; presence of a roughly triangular or rectangular conspicuous black caudal spot, extending from base to tip of middle caudal-fin rays, its greatest depth at base of caudal-fin rays; and anal-fin rays iii–iv, 18–23.

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