Anolis fitchi is an olive green to tan lizard with transverse dark brown bands on the back, and sometimes with yellow or black spots on the sides. Females may show a tan or cream color vertebral stripe (common in females of many Anolis species). The belly in both sexes may be cream, light brown or yellowish-green. Males have a large dewlap, extending up to the middle of the belly; females have a smaller dewlap, extending only to the arm insertion. In males, the dewlap is dark brown (in some cases with yellow in the anterior edge), with distinctive rows of one or two green or yellowish green scales, clearly separated by naked skin. In females the dewlap is tan or pale brown, mottled or spotted dark brown. Members of this species exhibit a moderate body size (maximum male snout-to-vent length [SVL] = 91mm, maximum female SVL = 86mm), narrow toe lamellae with the subdigital pad under the third phalanx projecting above the proximal end of the second phalanx. The iris has been reported as dark brown, gray or blue in males; in females it has been reported as blue or blue-green.