Rasbora atranus, a new species of fish from central Borneo (Teleostei: Cyprinidae)

Abstract

Rasbora atranus, new species, is described from the upper Mahakam drainage, central Borneo. It belongs to the R. sumatrana-elegans complex (sensu Brittan, 1954). It is distinguished by having a dark midlateral stripe from the operele to the caudal-fin base, often faint or poorly contrasted, widened in a faint elongated triangular blotch at the end of the caudal peduncle; by the presence of a conspicuous oval to triangular black blotch along the anterior half of the anal-fin base; by the fins orange in life. © 2011 by Verlag Dr. Friedrich Pfeil, München, Germany - ISSN 0936-9902.