AmphibiaWeb - Alsodidae
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Alsodidae

26 species in 3 genera

Commonly Called Spiny-chest Frogs, Ground Frogs, or Rapids Frogs


Alsodes gargola
Photo by Richard Sage
(Click for family gallery)

Generally a family of small to medium (25- 70 mm snout-vent length), yellow, brown or reticulated frogs from South America. Members of this family are found associated with forests or rivers; some are found in high-altitude grasslands. Most species of this family are poorly known, and much more information is needed on their natural history.

Alsodidae was first recognized by Pyron and Wiens (2011) when their molecular analysis could not support these genera within Cycloramphidae as it was not considered monophyletic. Subsequently Blotto et al (2013) could not support Limnomedusa within Alsodidae so its inclusion is tentative or provisional for now.

Written by AmphibiaWeb

Notable Family Characteristics

  • Tadpoles are free-swimming in ponds and pools
  • Found in forests, rivers, and some in arid regions
  • Males of Alsodes develop discrete patches of spines on their chest and spiny protuberances on their thumb and second digit during the breeding season
  • Distribution limited to South America, in regions of Patagonia, southern Brazil and the Andes.
Alsodidae Richness map

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

Relevant References

Blotto, B. L., J. J. Nuñez, C. A. Úbeda, W. C. Wheeler, and J. Faivovich. 2013. Phylogenetic relationships of a Patagonian frog radiation, the Alsodes + Eupsophus clade (Anura: Alsodidae), with comments on the supposed paraphyly of Eupsophus. Cladistics 29: 113-131.

Pyron, R. A., and J. J. Wiens. 2011. A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of advanced frogs, salamanders, and caecilians. Molecular Phylogenetics and Evolution 61: 543–583.

Genus Alsodes (19 species)
Alsodes australis no account no photos no sound/video
Alsodes barrioi no account no photos no sound/video
Alsodes cantillanensis no account no photos no sound/video
Alsodes coppingeri no account no photos no sound/video
Alsodes gargola no account photos no sound/video
Alsodes hugoi account photos no sound/video
Alsodes igneus no account photos no sound/video
Alsodes kaweshkari no account no photos no sound/video
Alsodes montanus no account no photos no sound/video
Alsodes monticola no account no photos no sound/video
Alsodes neuquensis no account no photos no sound/video
Alsodes nodosus no account photos no sound/video
Alsodes norae account photos no sound/video
Alsodes pehuenche no account no photos no sound/video
Alsodes tumultuosus no account no photos no sound/video
Alsodes valdiviensis account no photos no sound/video
Alsodes vanzolinii account photos no sound/video
Alsodes verrucosus no account photos no sound/video
Alsodes vittatus no account no photos no sound/video

Genus Eupsophus (6 species)
Eupsophus calcaratus no account photos no sound/video
Eupsophus emiliopugini no account photos no sound/video
Eupsophus insularis no account photos no sound/video
Eupsophus migueli account photos no sound/video
Eupsophus roseus no account photos no sound/video
Eupsophus vertebralis no account photos no sound/video

Genus Limnomedusa (1 species)
Limnomedusa macroglossa account photos no sound/video


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

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