The Morne Constant anole (Anolis ferreus) is a species of anole lizard that is endemic to the island of Marie-Galante, which is part of Guadeloupe in the Caribbean Lesser Antilles.Males can reach a length of 119 mm snout-to-vent, while females are significantly smaller, at 65 mm SVL. It has a yellow-green dorsal surface, and a blue-gray head with yellow around the eye.