Three, see text.
The Cycloramphidae are a family of frogs endemic to southeastern Brazil. This family has seen large changes in its composition. Genera that have at some point been included in the Cycloramphidae are at present placed in the Alsodidae, Hylodidae, Leptodactylidae, and Rhinodermatidae. Of these, the Alsodidae and/or Hylodidae have also been considered as subfamilies of Cycloramphidae (as, respectively, Alsodinae and Hylodinae); the Cycloramphidae, as recognized at present, would be similar to subfamily Cycloramphinae under such system.
- Frost, Darrel R. (2016). "Cycloramphidae Bonaparte, 1850". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 17 April 2016.
- Blackburn, D.C.; Wake, D.B. (2011). "Class Amphibia Gray, 1825. In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness" (PDF). Zootaxa. 3148: 39–55.
- "Cycloramphidae". AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. 2016. Retrieved 17 April 2016.
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