Grey Grunt

H. scudderii has an oblong, compressed body with an oblique mouth, which has a projecting lower jaw, the lips are not fleshy and open below the centre of the eye. It has a continuous dorsal fin, which has a small to medium-sized notch in its middle. The dorsal fin contains 11-12 spines and 14*17 soft rays while the anal fin has 3 spines and 7-8 soft rays. The overall colour is silvery-grey, with each of the scales having a black spot on it, with notably golden eyes. The inside of the mouth is normally orange in colour. The median fins are black while the pectoral and pelvic fins are a slightly lighter dusky colour. The juveniles have a dark midlateral stripe that joins a black spot at the base of the caudal fin and a second stripe from the upper part of eye to upper surface of the caudal peduncle. This species attains a maximum total length of 35 cm (14 in), although a length of 30 cm (12 in) is more typical.

H. scudderii is endemic to the eastern Pacific Ocean. It is distributed from southern Baja California and the central Gulf of California south along the coasts of Central America and South America as far south as Ecuador, its range includes the Galapagos Islands.