5 species in 2 genera

The family Calyptocephalellidae is confined to Chile, and contains two genera, Calyptocephalella and Telmatobufo. Calyptocephalella gayi , the Helmeted Water Toad, is the sole species within its genus and was formerly known as Caudiverbera caudiverbera. Helmeted Water Toads are large a quatic frogs, with females reaching up to 320 mm SVL. The other genus within this family, Telmatobufo, contains three species which live in or next t o fast-flowing streams in temperate Nothofagus forest and are very rarely encountered (Telmatobufo venustus has been recorded once in the past 100 years.).

This family has undergone taxonomic revision since it was originally named Batrachophrynidae (Frost et al. 2006), but then had to be renamed to Calyptocep halellidae (Frost 2007) when it was realized that prior karyotypic work by Córdova and Descailleaux (2005) had suggested that the genus Batrachophrynus was actually aligned with Telmatobius and thus nested within the > family Ceratophryidae.

Calyptocephalella gayi
Photo by José Grau
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Literature cited:
Córdova, J. and Descailleaux, J. (2005), in Lavilla, E. O., and De la Riva, I. (Eds.) 2005. Studies on the Andean frogs of the genera Telmatobius and Batrachophrynus. Asociación HerpetológicEspañola, Monografías de Herpetología 7, Valencia, Spain.
Frost, D. R., Grant, T., Faivovich, J., Bain, R. H., Haas, A., Haddad, C. F. B., de Sá, R. O., Channing, A., Wilkinson, M., Donnellan, S. C., Raxworthy, C. J., Campbell, J. A., Blotto, B. L., Moler, P., Drewes, R. C., Nussbaum, R. A., Lynch, J. D., Green, D. M., and Wheeler, W. C. (2006). The amphibian tree o f life. Bulletin of the American Museum of Natural History, 297, 1-370.
Frost, D. R. (2007). Amphibian Species of the World Online, version 5.0.

Genus Calyptocephalella (1 species)
Calyptocephalella gayi AmphibiaWeb account photos no sound/video

Genus Telmatobufo (4 species)
Telmatobufo australis AmphibiaWeb account no photos no sound/video
Telmatobufo bullocki AmphibiaWeb account no photos no sound/video
Telmatobufo ignotus no AmphibiaWeb account no photos no sound/video
Telmatobufo venustus AmphibiaWeb account photos no sound/video

Citation: AmphibiaWeb: Information on amphibian biology and conservation. [web application]. Berkeley, California: AmphibiaWeb. Available: (Accessed:

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