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Issue: Vol. 4461 No. 1: 20 Aug. 2018
Type: Article
Published: 2018-08-20
DOI: 10.11646/zootaxa.4461.1.4
Page range: 69–76
Abstract views: 58
PDF downloaded: 1

A new Moenkhausia (Actinopterygii: Characiformes: Characidae) from the upper rio Negro basin, Brazil

Museu de Zoologia da Universidade Estadual de Campinas “Adão José Cardoso”, Caixa Postal 6109, 13083-683, Campinas, SP, Brazil.
Laboratório de Ictiologia, Departamento de Zoologia, IBB-UNESP Campus de Botucatu, Rua Professor Walter Maurício Correia, 18618-681, Botucatu, SP, Brazil.
Pisces Rio Miuá Amazonas state Color pattern Moenkhausia agnesae

Abstract

A new species of Moenkhausia is described from the upper rio Negro basin, Amazonas, Brazil. The new species is distinguished from all congeners, except M. agnesae, by presenting a color pattern characterized by the presence of two irregularly-shaped humeral blotches, and the presence of dark longitudinal stripes on the dorsal portion of the body. The new species can be readily separated from M. agnesae by presenting longitudinal stripes straight and more conspicuous dorsally, humeral blotches contacting each other, 2–3 tricuspid maxillary teeth, 32–35 lateral-line scales, and length of maxilla 45.3–51.0% in head length.

 

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