Diagnosis: large, predatory-looking species; very large mouth and big stout teeth; eye seems very small compared to scaled area of cheek beneath; upper surface of the tip of the premaxilla often extends almost horizontally for a considerable distance when viewed in profile (Ref. 55949).

Description: very large head and mouth; lower jaw moderately to strongly protruding, with a prominent mental process; eyes small; cheek deep; teeth large, thick, fairly straight and widely-spaced; often only the tips of the teeth near the front of the jaw are visible when the mouth is closed (Ref. 55949).

Coloration: body generally countershaded; belly, chin and gular region may be silvery-grey, white or yellow; adults of both sexes may have white, grey or orange/yellow pelvic fins, sometimes with black trailing edges; caudal fin dark grey to black, sometimes with white spots on the membranes; sometimes with white spots on the membranes of the soft dorsal fin (Ref. 55949).