About Anolis pulchellus Duméril & Bibron, 1837
Anolis pulchellus, commonly called the Puerto Rican anole, Puerto Rican bush anole, snake anole, or sharp-mouthed lizard, is a small species of anole lizard belonging to the family Dactyloidae. This species is one of the most common lizards found in Puerto Rico, and is also native to Vieques, Culebra, and the Virgin Islands excluding St. Croix. The sharp-mouthed lizard has an approximate snout-to-vent length of 35 to 43 mm, or 1.4 to 1.7 inches. It is typically yellow-brown in overall color; males of the species have a purple dewlap that fades to crimson near the dewlap's tip. Anole lizards native to the Greater Antilles have been heavily studied, as they form a notable case of adaptive radiation. In this group, species are more closely related to other species that share the same island than to anole species living on adjacent islands. Even though species divergence happened independently on each individual island, the same set of ecomorphs (habitat specialists) have evolved on every island. Anolis pulchellus is classified as a grass-bush anole, and is primarily found living in bushes and grass.