(total): 8 - 9;
soft rays: 15 - 18. Color bluish grey to black dorsally, white to dusky below; 5-7 dark oblique bands or blotches on young disappear with age. Posterior spines of dorsal fin minute or embedded in large adults; first anal spine usually embedded. Gill rakers are mostly rudiments. Grooves of caudal peduncle present dorsally and ventrally. Maxilla reaching below rear margin of the eyes.