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Issue: Vol. 2434 No. 1: 23 Apr. 2010
Type: Articles
Published: 2010-04-23
DOI: 10.11646/zootaxa.2434.1.5
Page range: 60–68
Abstract views: 25
PDF downloaded: 2

Redescription of Astyanax stenohalinus Messner, 1962 (Characiformes: Characidae), a poorly known species from Argentina and Uruguay

División Zoología Vertebrados, Museo de La Plata, UNLP, Paseo del Bosque, 1900 La Plata, Argentina
División Zoología Vertebrados, Museo de La Plata, UNLP, Paseo del Bosque, 1900 La Plata, Argentina
División Zoología Vertebrados, Museo de La Plata, UNLP, Paseo del Bosque, 1900 La Plata, Argentina
Sección Vertebrados, Departamento de Biología Animal. Facultad de Ciencias, Iguá 4225 Departamento de Ictiología Museo Nacional de Historia Natural y Antropología. Montevideo, Uruguay
Fish freshwater fishes characids Río de la Plata basin Laguna Merín

Abstract

Astyanax stenohalinus Messner, 1962 is redescribed based on type material and new specimens collected in many localities of Argentina and Uruguay. This species is distinguished by a combination of the following characters: possession of hooks in all fins of males, teeth not expanded distally, two or three maxillary teeth, 37–39 perforated scales in the lateral series, 25–30 branched anal-fin rays, and anal-fin origin located before a vertical through last dorsal-fin ray insertions.

References

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