Bryconamericus pyahu sp. n. - Characiformes, Characidae -, a new species from the río Iguazú basin, in Argentina / Maria de las Mercedes Azpelicueta ; Jorge Rafael Casciotta ; Adriana Edith Almirón
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ArtículoIdioma: Inglés Editor: 2007Descripción: 9 páginasTema(s):
En: Revue Suisse de Zoologie v. 110 n. 3 (2003)Resumen: Abstract: A new species of the genus Bryconamericus is describd from río Iguazú basin en 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 río San Antonio, Iguazú basin.
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Abstract: A new species of the genus Bryconamericus is describd from río Iguazú basin en 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 río San Antonio, Iguazú basin.