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Imparfinis mishky (Siluriformes, Heptapteridae) a new species from the ríos Paraná and Uruguay basins in Argentina

2007; Natural History Museum of Geneva; Volume: 114; Linguagem: Inglês

10.5962/bhl.part.80416

ISSN

0035-418X

Autores

Adriana Almirón, Jorge Rafael Casciotta, José A. Bechara, F Ruiz Diaz, María Cecilia Bruno, Stephen D’Ambrosio, Patricio José Solimano, Paula Soneira,

Tópico(s)

Fish Ecology and Management Studies

Resumo

Imparfinis mishky (Siluriformes, Heptapteridae) a new species from the rios Parana and Uruguay basins in Argentina.-Imparfinis mishky sp.n. is described from the rio Parana and no Uruguay basins in Argentina.Imparfinis mishky sp.n. is distinguished from other species of the genus by the following combination of characters: pectoral-fin spine with smooth anterior and posterior margins; caudal fin deeply forked with dorsal lobe longer than ventral lobe; adipose fin not reaching caudal fin; body with six dark saddles across the dorsum, and without a mid-lateral band.It was found inhabiting well oxygenated, neutral pH, flowing waters, with sandy or cobble covered bottom.

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