Over the years, scientists have said theys hould be in Ranidae, Leptodactylidae, Hylidae, and in their own family, Pseudidae, by themselves. It has been difficult for scientists to say where these frogs belong in taxonomy because their bodies are very different from those of other hylid frogs. The bodies of "Pseudis" frogs are different from other tree frogs' bodies because "Pseudis" frogs spend much more time living in water than most tree frogs do.