The sheepshead has an oval-shaped, deep body with a blunt snout and small, nearly horizontal mouth. The posterior nostril is slit-like in appearance. Dorsal and anal fins include stout, short spines. The second spine of the anal fin is enlarged. Pectoral fins are long, extending beyond the anal opening when appressed (pressed close to the body). The caudal fin is shallowly forked. The adult sheepshead is silvery to greenish-yellow with an olive back. There are five or six dark vertical crossbars along each side, which are most distinct in young individuals. The caudal and pectoral fins are greenish while the dorsal, anal, and ventral fins are dusky or black. Other fish that are similar in appearance to the sheepshead include the black drum (Pogonias cromis) and Atlantic spadefish (Chaetodipterus faber). However, the black drum has barbels on the lower jaw and reaches a much larger adult size than the sheepshead. The Atlantic spadefish has a very short snout, a much rounder body shape and a larger soft dorsal and anal fin than the sheepshead. Additionally, the vertical bands on the sides of the black drum and Atlantic spadefish tend to fade with age much more so than the markings of the sheepshead.