Cyphocharax boiadeiro, a new species from the upper rio Araguaia, Amazon basin, Brazil (Characiformes: Curimatidae)

Abstract

Cyphocharax boiadeiro, new species, is described from the upper rio Araguaia, a tributary of the Amazon basin in central Brazil. The new species is readily distinguished from its congeners by the presence of a distinct longitudinal dark stripe from supracleithrum to the caudal peduncle and by a combination of morphometric, meristic, and pigmentation features. Morphological characters supporting putative subunits of Cyphocharax are also discussed.