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 rarely, if ever, descend to the ground.

==Species== {|style="text-align:left; border:1px solid #999999; " |-style="background:#CCCC99; text-align: center; " !Binomial name and author!! Common name |- |-style="background:#EEEEEE;" | T. atlas || Bokermann's casque-headed tree frog |-style="background:#FFFDFF;" | T. coriaceus || Surinam golden-eyed tree frog |-style="background:#EEEEEE;" | T. cunauaru || |-style="background:#FFFDFF;" | T. dibernardoi || |-style="background:#EEEEEE;" | T. hadroceps || New River tree frog |-style="background:#FFFDFF;" | T. helioi || |-style="background:#EEEEEE;" | T. imitatrix || Rio golden-eyed tree frog |-style="background:#FFFDFF;" | T. jordani || Jordan's casque-headed tree frog |-style="background:#EEEEEE;" | T. lepidus || |-style="background:#FFFDFF;" | T. macrotis || Amazonian milk frog |-style="background:#EEEEEE;" | T. mambaiensis || Mambai casque-headed tree frog |-style="background:#FFFDFF;" | T. mesophaeus || Porto Alegre golden-eyed tree frog |-style="background:#EEEEEE;" | T. nigromaculatus || black-spotted casque-headed tree frog |-style="background:#FFFDFF;" | T. quadrangulum || Chocoan milk frog |-style="background:#EEEEEE;" | T. resinifictrix || Mission golden-eyed tree frog or Amazon milk frog |-style="background:#FFFDFF;" | T. typhonius || veined tree frog, common milk frog |-style="background:#EEEEEE;" | T. venezolanus || Venezuela casque-headed frog |-style="background:#FFFDFF;" | T. "vermiculatus" || milky treefrog |-style="background:#EEEEEE;" |- |}