Nyctimantis
Nyctimantis is a genus of frogs in the family Hylidae. These frogs live in southeastern Brazil and in the Orinoco Basin in Venezuela, Colombia, and Brazil. They live in trees.  They hide in small pockets of water in plants that live on the branches and trunks of trees. The top of the frog's head has a bony plate on it.  The bone plate is grown into the skin.