Species: Hypophthalmus edentatus, Highwaterman catfish

Hypophthalmus edentatus Spix & Agassiz, 1829

Highwaterman catfish

Body elongate, robust; snout and head  not strongly depressed; head short and wide, distance between eyes (54-63% of head length), with a bony shield; front and rear nostrils well separated; eye low on side of head; rear nostril without a flap along its front edge; mouth opens at front; no teeth on sides of roof of mouth; 3 pairs of barbells, top barbell not very long; 1st dorsal fin small, with short base that is entirely over the anal fin, 1st spine short, feeble and flexible, fin over anal fin;  very small skin flap 2nd dorsal fin present; anal fin base very long, origin under pectoral; pectoral and dorsal spines present; pectoral fin very low on side; tail fin triangular, slightly concave; lateral line complete; no scales.