Author: Ayres, 1855
Diagnostic Features:
Head broad and rounded or bluntly pointed, with 7 pairs of gill slits on head; eyes small; mouth wide and arcuate; large lower comblike teeth high and short, with mesial serrations, a low cusp, and 5 or 6 distal cusplets in adults. Caudal peduncle short, distance from dorsal fin insertion to upper caudal origin about equal to length of dorsal base. Colour: body usually with numerous small black spots, but dorsal fin and upper caudal lobe without black tips.