Author: Rafinesque, 1810
Diagnostic Features:
Head broad or narrow and pointed, with 6 pairs of gill slits; eyes small to large; mouth narrow and parabolic or wide and arcuate; large lower comblike teeth low and long, with mesial serrations, a low to moderately high cusp, and 8 to 10 distal cusplets in adults; caudal peduncle short to long, distance from dorsal fin insertion to upper caudal origin varying from slightly longer to about twice as long as dorsal base; body without spots, no black tips on fins.
Remarks:
Following Springer and Waller (1969), two species are recognized for this genus, H. griseus (Bonnaterre, 1788) and H. vitulus Springer and Waller, 1969.