Oligosarcus argenteus Guenther, 1864

Fig. 3M

Distribution.

Rio Doce, rio das Velhas, and upper rio Paraná basins, Brazil.

Diagnosis.

Oligosarcus argenteus is diagnosed by having 17-24 teeth in maxillary bone; 44-48 perforated scales in lateral line; 8-9 series of scales above and 6-8 below lateral line; iv-v+20-25 branched rays in the anal fin; 17-20 scales around caudal peduncle.