Salminus

1. Lateral line with 93 to 96 pored scales; transverse series above lateral line with 16 to 18 scale rows and below with 8 to 9 scale rows.............................................. S. brasiliensis 1’. Lateral line with 68 to 71 pored scale; transverse series above lateral line with 10 scale rows and below with 6 scale rows................................................................ S. hilarii