Cycloramphus is a genus of frogs in the family Cycloramphidae.[1][2] The genus is endemic to the southeastern Brazil. They are sometimes known as the button frogs.[1]
^ abFrost, Darrel R. (2015). "Cycloramphus Tschudi, 1838". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 2 June 2015.
^"Cycloramphidae". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2015. Retrieved 2 June 2015.