AMPHIBIAWEB

Cycloramphidae

34 species in 2 genera

Commonly Called Smooth Horned Frogs


Cycloramphus duseni
Photo by Germano Woehl Jr.
(Click for family gallery)

The family Cycloramphidae contains genera formerly considered to be within the family Leptodactylidae, and once contained genera with wholly unique life history such as Rhinoderma, Mouth-Brooding Frogs, now considered as a separate family, the Rhinodermatidae. Cycloramphidae now is restricted to two genera, which occur in terrestrial or semi-terrestrial habitats of primary or secondary forests, streams and rocky outcrops in South America. Some species larvae (Thoropa) have adaptations for living in fast-moving torrents of mountain streams; others are considered semi-terrestrial living in the rocks in the splashzone of waterfalls where they forage for food on the streambanks (Cycloramphus).

Written by AmphibiaWeb

Notable Family Characteristics

  • Terrestrial or semi-terrestrial habitats of primary or secondary forests, streams and rocky outcrops
  • Amplexus axillary
  • Eggs are laid and hatch into free-living tadpoles with adaptations to semi-terrestrial or torrential stream habitats
  • Some morphological features include: 1) paired palatines and frontoparietals in the skull; 2) eight presacral holochordal vertebrae, all procoelous
  • Distribution limited to southeastern Brazil in the Brazilian Atlantic raindforest, South America

Relevant Reference

Pough, F. H., R. M. Andrews, M. L. Crump, A. H. Savitzky, K. D. Wells, and M. C. Brandley. 2015. Herpetology. Fourth Edition. Massachusetts: Sinauer.

Vitt, L. J., and J. P. Caldwell. 2013. Herpetology. An Introductory Biology of Amphibians and Reptiles. Fourth Edition. Amsterdam: Elsevier.

Genus Cycloramphus (28 species)
Cycloramphus acangatan no AmphibiaWeb account no photos no sound/video
Cycloramphus asper no AmphibiaWeb account photos no sound/video
Cycloramphus bandeirensis no AmphibiaWeb account no photos no sound/video
Cycloramphus bolitoglossus no AmphibiaWeb account photos no sound/video
Cycloramphus boraceiensis no AmphibiaWeb account photos no sound/video
Cycloramphus brasiliensis no AmphibiaWeb account no photos no sound/video
Cycloramphus carvalhoi no AmphibiaWeb account no photos no sound/video
Cycloramphus catarinensis no AmphibiaWeb account no photos no sound/video
Cycloramphus cedrensis no AmphibiaWeb account no photos no sound/video
Cycloramphus diringshofeni no AmphibiaWeb account no photos no sound/video
Cycloramphus dubius no AmphibiaWeb account photos no sound/video
Cycloramphus duseni no AmphibiaWeb account photos no sound/video
Cycloramphus eleutherodactylus no AmphibiaWeb account photos no sound/video
Cycloramphus faustoi AmphibiaWeb account no photos no sound/video
Cycloramphus fuliginosus no AmphibiaWeb account no photos no sound/video
Cycloramphus granulosus no AmphibiaWeb account no photos no sound/video
Cycloramphus izecksohni no AmphibiaWeb account no photos no sound/video
Cycloramphus juimirim no AmphibiaWeb account no photos no sound/video
Cycloramphus lithomimeticus no AmphibiaWeb account no photos no sound/video
Cycloramphus lutzorum no AmphibiaWeb account no photos no sound/video
Cycloramphus migueli no AmphibiaWeb account no photos no sound/video
Cycloramphus mirandaribeiroi no AmphibiaWeb account no photos no sound/video
Cycloramphus ohausi no AmphibiaWeb account no photos no sound/video
Cycloramphus organensis no AmphibiaWeb account no photos no sound/video
Cycloramphus rhyakonastes no AmphibiaWeb account no photos no sound/video
Cycloramphus semipalmatus no AmphibiaWeb account no photos no sound/video
Cycloramphus stejnegeri no AmphibiaWeb account no photos no sound/video
Cycloramphus valae no AmphibiaWeb account no photos no sound/video

Genus Thoropa (6 species)
Thoropa lutzi no AmphibiaWeb account no photos no sound/video
Thoropa megatympanum no AmphibiaWeb account photos no sound/video
Thoropa miliaris no AmphibiaWeb account photos no sound/video
Thoropa petropolitana no AmphibiaWeb account no photos no sound/video
Thoropa saxatilis no AmphibiaWeb account no photos no sound/video
Thoropa taophora no AmphibiaWeb account photos sound/video


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

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