Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina

A new species of the characid genus Hyphessobrycon is described from tributaries of the Río de la Plata and the Salado River system in middle-eastern Argentina. Hyphessobrycon togoi can be distinguished from all congeners, except H. langeanii Lima & Moreira, by the presence of a well-defined, ro...

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Autores principales: Miquelarena, Amalia María, López, Hugo Luis
Formato: Articulo
Lenguaje:Inglés
Publicado: 2006
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/66042
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id I19-R120-10915-66042
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Ostariophysi; Hyphessobrycon; new species; systematic; biodiversity; taxonomy; distribution; middle eastern Argentina
Peces
Argentina
spellingShingle Ciencias Naturales
Ostariophysi; Hyphessobrycon; new species; systematic; biodiversity; taxonomy; distribution; middle eastern Argentina
Peces
Argentina
Miquelarena, Amalia María
López, Hugo Luis
Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina
topic_facet Ciencias Naturales
Ostariophysi; Hyphessobrycon; new species; systematic; biodiversity; taxonomy; distribution; middle eastern Argentina
Peces
Argentina
description A new species of the characid genus Hyphessobrycon is described from tributaries of the Río de la Plata and the Salado River system in middle-eastern Argentina. Hyphessobrycon togoi can be distinguished from all congeners, except H. langeanii Lima & Moreira, by the presence of a well-defined, round to horizontally oval humeral spot. Other diagnostic characters defining Hyphesso-brycon togoi are the possession of a short expanded maxilla with one large multicuspid tooth; premaxilla with an outer row of 3 small teeth, with 5 or 6 cusps, relatively apart from each other; inner series with 5 teeth that are distally broader, with numerous cusps (6-11) and overlapping each other; iv-v, 17-20 anal-fin rays; 31-36 scales on longitudinal series. Hyphessobrycon togoi is also distinguished by the presence of bony hooks on all fins of the mature males. Considerations about the distribution of the species of genus Hyphessobrycon in Argentina are included.
format Articulo
Articulo
author Miquelarena, Amalia María
López, Hugo Luis
author_facet Miquelarena, Amalia María
López, Hugo Luis
author_sort Miquelarena, Amalia María
title Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina
title_short Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina
title_full Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina
title_fullStr Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina
title_full_unstemmed Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina
title_sort hyphessobrycon togoi, a new species from the la plata basin (teleostei: characidae) and comments about the distribution of the genus in argentina
publishDate 2006
url http://sedici.unlp.edu.ar/handle/10915/66042
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