AmphibiaWeb - Conrauidae


6 species in 1 genus

Commonly Called Goliath Frogs, Slippery Frogs

Conraua robusta
Photo by Brian Freiermuth
(Click for family gallery)

Much of the information on this family comes from the most famous member, the Goliath frog (Conraua goliath), which is the largest known species of frog. Individuals may weigh up to 4 kilograms (8 lbs) and up to 32 cm snout-vent length. These species are poorly known and many are consumed for food.

The closest sister group to Conrauidae is likely Petropedetidae (both were formerly subfamilies to Ranidae) as summarized by Blackburn and Wake (2011).

Written by AmphibiaWeb

Notable Family Characteristics

  • Found in riverine systems and tannic, clear waters
  • Lays eggs in moving water
  • Lack vocal cords, at least in Conraua goliath
  • Distribution is disjunct in West Africa and in East Africa
Conrauidae Richness map

Cartography Credit: Zoe Yoo, UC Berkeley
Range maps sources: AmphibiaWeb, UC Berkeley, and IUCN RedList

Relevant Reference

Blackburn, D. C., and D. B. Wake. 2011. Class Amphibia Gray, 1825. Zhang, Z.-q. ed., Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness. Zootaxa 3148: 39–55.

Genus Conraua (6 species)
Conraua alleni no account no photos no sound/video
Conraua beccarii no account no photos no sound/video
Conraua crassipes no account photos no sound/video
Conraua derooi no account photos no sound/video
Conraua goliath account photos no sound/video
Conraua robusta no account photos no sound/video

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

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