new species:
Imparfinis mishky Almirón et al., 2007
type locality:
Argentina, Corrientes province, Esteros del Iberá, Capitá Miní, río Corriente, río Paraná basin (28°53’15,3” S – 58º22’02,7” W); Holotype: MACN 8973 (1, 56,6 mm), Paratypes: AI 210 (17, 21,5-65,6 mm)
published in:
Almirón, A., J. Casciotta, J. Bechara, F. Ruíz Díaz, C. Bruno, S. D’Ambrosio, P. Solimano & P. Soneira (2007):
Imparfinis mishky (Siluriformes, Heptapteridae) a new species from the ríos Paraná and Uruguay basins in Argentina.
Revue suisse de Zoologie 114 (4): 817-824
abstract (from publication):
Imparfinis mishky sp.n. is described from the río Paraná and 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.
distribution (from publication):
Imparfinis mishky sp.n. is known from the Paraná above the confluence with the río Paraguay; río Corriente, río Paraná basin below the confluence with río Paraguay; and río Timboy, río Uruguay basin, all localities are within Corrientes province, Argentina.