AmphibiaWeb - Hylodidae
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Hylodidae

47 species in 4 genera

Commonly Called Torrent Frogs, Stream-dwelling Frogs


Hylodes asper
Photo by Celio Haddad
(Click for family gallery)

The family Hylodidae occurs in northwestern Brazil to southern Brazil and northern Argentina. One unusual member of this family, Hylodes asper, lives in noisy environments near waterfalls. Males call, but also communicate territoriality by intentional foot-flagging (alternate slow waving of each rear foot high in the air; see Hylodes asper species account for video).

This family is sister taxon to Alsodidae.

Written by AmphibiaWeb

Notable Family Characteristics

  • Occurs in and around streams, some species preferring fast-moving waters and waterfalls
  • Diurnal
  • Axillary amplexus
  • Egg-laying in water with aquatic tadpoles
  • Morphological characters include: 1) cartiliginous sternum (although may be calcified in older adults); 2) terminal phalanges tips are variable; 3) slender bodies, rugose skin; 4) nuptial pads in some species of males
  • Distribution limited to South America, northwestern and southern Brazil to northern Argentina
Hylodidae Richness map

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

Relevant Reference

Grant, T., Frost, D. R., Caldwell, J. P., Gagliardo, R., Haddad, C. F. B., Kok, P. J. R., Means, D. B., Noonan, B. P., Schargel, W. E., and Wheeler, W. C. 2006. Phylogenetic systematics of dart-poison frogs and their relatives (Amphibia: Athesphatanura: Dendrobatidae). Bulletin of the American Museum of Natural History, 299, 1-262.

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 Crossodactylus (14 species)
Crossodactylus aeneus no account no photos no sound/video
Crossodactylus boulengeri no account no photos no sound/video
Crossodactylus caramaschii no account photos no sound/video
Crossodactylus cyclospinus no account no photos no sound/video
Crossodactylus dantei no account no photos no sound/video
Crossodactylus dispar no account no photos no sound/video
Crossodactylus franciscanus no account no photos no sound/video
Crossodactylus gaudichaudii no account photos no sound/video
Crossodactylus grandis no account no photos no sound/video
Crossodactylus lutzorum no account no photos no sound/video
Crossodactylus schmidti no account no photos no sound/video
Crossodactylus timbuhy no account photos no sound/video
Crossodactylus trachystomus no account photos no sound/video
Crossodactylus werneri no account no photos no sound/video

Genus Hylodes (26 species)
Hylodes amnicola account no photos no sound/video
Hylodes asper account photos sound/video
Hylodes babax no account no photos no sound/video
Hylodes caete no account no photos no sound/video
Hylodes cardosoi account no photos no sound/video
Hylodes charadranaetes no account no photos no sound/video
Hylodes dactylocinus no account no photos no sound/video
Hylodes fredi no account no photos no sound/video
Hylodes glaber no account no photos no sound/video
Hylodes heyeri account photos no sound/video
Hylodes japi account photos no sound/video
Hylodes lateristrigatus no account photos no sound/video
Hylodes magalhaesi account no photos no sound/video
Hylodes meridionalis no account photos no sound/video
Hylodes mertensi no account no photos no sound/video
Hylodes nasus no account photos sound/video
Hylodes ornatus no account no photos no sound/video
Hylodes otavioi no account no photos no sound/video
Hylodes perere no account no photos no sound/video
Hylodes perplicatus no account photos no sound/video
Hylodes phyllodes no account photos sound/video
Hylodes pipilans no account photos no sound/video
Hylodes regius no account no photos no sound/video
Hylodes sazimai account photos no sound/video
Hylodes uai no account no photos no sound/video
Hylodes vanzolinii no account no photos no sound/video

Genus Megaelosia (1 species)
Megaelosia goeldii no account photos no sound/video

Genus Phantasmarana (6 species)
Phantasmarana apuana no account photos no sound/video
Phantasmarana bocainensis no account no photos no sound/video
Phantasmarana boticariana no account photos no sound/video
Phantasmarana jordanensis no account no photos no sound/video
Phantasmarana lutzae no account no photos no sound/video
Phantasmarana massarti no 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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