Dorsal fin deeply notched in mature males, and unnotched or shallowly notched in mature females; pectoral fin shallowly notched, notch more prominent in smaller specimens than in larger ones, and unnotched in the largest specimen (HUMZ 89888); caudal fin broad, its posterior margin rounded and dorsal and ventral notches usually present (Ref. 28160). Disk large, located almost between verticals through posterior margin of eye and gill opening (Ref. 28160). Body brown, gray or blackish; four basic patterns present - striped, speckled, mottled and plain; dorsal and anal fins with the same color pattern as body, with dark bars or entirely blackish; caudal fin with two dark bars; eye silvery (Ref. 28160).