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Issue: Vol. 1747 No. 1: 11 Apr. 2008
Type: Article
Published: 2008-04-11
DOI: 10.11646/zootaxa.1747.1.3
Page range: 61–68
Abstract views: 40
PDF downloaded: 2

A new species of Hyphessobrycon (Characiformes: Characidae) from rio Portuguesa, rio Orinoco basin, Venezuela

Laboratório de Biologia e Genética de Peixes, Departamento de Morfologia, IBB-UNESP Campus de Botucatu, Botucatu, SP, 18618-000, Brazil
Programa de Pós-Gaduação em Ciências Biológicas, área de Zoologia, IBB-UNESP, Campus de Botucatu, SP, 18618-000, Brazil
Fish Neotropical region systematics taxonomy Hyphessobrycon diancistrus

Abstract

A new species of Hyphessobrycon is described from tributaries of the río Portuguesa, río Orinoco Basin, Venezuela. The new species is diagnosed from congeners by the presence of two large hooks on each side of the anal fin in adult males (processes of last unbranched and first branched anal-fin rays), distal third of caudal-fin black except for its distal tips (which are hyaline), anal-fin rays v,19–21, and dorsal-fin rays ii,8. Comments on its generic status and putative relationships are provided.

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