| Common names: sea-catfish (English), congo (Espanol) |
Cathorops tuyra (Meek & Hildebrand, 1923)
Body moderately elongate; head small; snout long, pointed; top of head rough on rear half, covered with thin skin; narrow central groove in top of head from snout to a little behind eye, sometimes not reaching onto snout; bone projecting back from head shield triangular, with wide base, longer than wide, with a central keel; 3 pairs of barbells (on chin and both jaws); mouth small; lips fleshy, often thick; lower jaw bones very wide, with large molar teeth at rear; fine teeth at front of top jaw in two articulated patches; one pair of well separated, oblique, elongated patches of large molariform teeth on roof of mouth; gill opening restricted to sides by adhesion of gill membranes to breast; gill rakers 7 + 13-15; rakers on posterior surface of all arches; dorsal rays I,7; anal rays 19-20; pectoral rays I, 10-11.
Grey on back and sides, white below; fins dusky bluish grey.
Maximum size to 30 cm.
Inhabits brackish and fresh water.
Depth: 0-20 m.
Costa Rica to Peru.