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Bryconamericus pyahu sp. n. (Characiformes, Characidae), a new species from the río Iguazú basin, in Argentina

2003; Natural History Museum of Geneva; Volume: 110; Linguagem: Inglês

10.5962/bhl.part.80200

ISSN

0035-418X

Autores

María de las Mercedes Azpelicueta, Jorge Rafael Casciotta, Adriana Almirón,

Tópico(s)

Ichthyology and Marine Biology

Resumo

n. (Characiformes, Characidae), a new species from the rio Iguazu basin, in Argentina.-A new species of the genus Bryconamericus is described from rio Iguazu basin in Misiones, Argentina.Bryconamericus pyahu sp.n. is distinguished from all other species by the following combination of characters: low body depth (28.0-34.5 in % of SL); premaxillary teeth of the inner series with 3 to 5 cusps; aligned 3 premaxillary teeth of the outer row tricuspidate, and 3-5 maxillary teeth with 1 to 3 cusps.Also, the new species has 18-20 branched anal-fin rays, large black subcircular humeral spot, wide black lateral band, and 37-39 perforated scales on the lateral line.The new species was collected in the arroyo Tateto, headwaters of the rio San Antonio, Iguazu basin.

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