Urosaurus bicarinatus (Tropical Tree Lizard) is a small arboreal lizard (38 -50 mm), with the males slightly bigger than females. It is endemic to Pacific coast of W Mexico from Sonora to Michoacan. Overall color of dorsal region is gray to brownish gray with numerous white tubercles. Their throat is yellow. Typical clutch has 4- 8 eggs. Feeds on mostly insects and their larvae.