Body deeply compressed with a steep forehead, two dorsal fins, a narrow caudal peduncle, and a slender forked caudal fin. The caudal peduncle is reinforced with a series of scutes (25-42) formed from modified bone. There are 9 spines in the first dorsal fin and 19-21 soft rays in the second dorsal fin, and 3 spines and 15-17 soft rays in the anal fin. The second dorsal fin and the anal fin are both elevated. The eye has an adipose eyelid. Scales are cycloid and small. Body color is silvery to brassy, the dorsal surface olive or bluish green, and the caudal fin yellowish. There is a black spot on the gill cover at equal height with the eye. Grows to about 49 in (124 cm) in total length.
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