Trachycephalus
Trachycephalus is a genus of frogs, commonly known as the casque-headed tree frogs, in the family Hylidae. They are found in Mexico, Central America, and South America. In a recent revision, the seven species of the genus "Phrynohyas" were included in this genus, and "Phrynohyas" is now considered a synonym of "Trachycephalus". These frogs inhabit the canopies of tropical rainforests, where they breed in tree cavities, and seldom, if ever, descend to the ground.