AmphibiaWeb - Osteocephalus taurinus


(Translations may not be accurate.)

Osteocephalus taurinus Steindachner, 1862
Manaus Slender-Legged Treefrog, Rana de casco taurina
family: Hylidae
subfamily: Hylinae
genus: Osteocephalus

© 2011 Tiffany Kosch (1 of 36)

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Conservation Status (definitions)
IUCN Red List Status Account Least Concern (LC)
National Status None
Regional Status None
Access Conservation Needs Assessment Report .



View distribution map in BerkeleyMapper.
View Bd and Bsal data (2 records).

Source credit:
Guia de Sapos da Reserva Adolpho Ducke, Amazonia Central by Lima et al. 2005

INPA (Instituto Nacional de Pesquisas da Amazônia)
PPBio (Programa de Pesquisa em Biodiversidade)
PELD (Pesquisas Ecológicas de Longa Duração)

Males 71-92 mm, females 90-101 mm. The dorsum is smooth in females and granular in males. Dorsal coloration is light to dark brown, and some individuals have a light brown line in the center of the dorsum. The thighs have transverse dark brown bars. The iris is golden with black reticulations. Males have a vocal sac on each side of the head. The belly is cream to whitish.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela


View distribution map in BerkeleyMapper.
View Bd and Bsal data (2 records).
Common throughout the Reserva Florestal Adolpho Ducke in Brazil.

Life History, Abundance, Activity, and Special Behaviors
The species is arboreal and nocturnal, and is found in primary and secondary forests, usually on trunks and branches. Males call, often in groups, from low vegetation or immersed in small water bodies. Reproduction occurs throughout the year, after heavy rain, but most frequently at the start of the rainy season. The clutches contain about 2000 black eggs that are deposited as a film on the surface of temporary ponds. The tadpoles are voracious predators of eggs of their own and other species,

Male Osteocephalus oophagus differ by having a single vocal sac, and smaller size. Some individuals of O. oophagus also have numerous white spots on the sides of the body.

Originally submitted by: Albertina P. Lima, William E. Magnusson, Marcelo Menin, Luciana K. Erdtmann, Domingos J. Rodrigues, Claudia Keller, Walter Hödl (first posted 2007-11-21)
Edited by: Kellie Whittaker (2009-06-16)

Species Account Citation: AmphibiaWeb 2009 Osteocephalus taurinus: Manaus Slender-Legged Treefrog <> University of California, Berkeley, CA, USA. Accessed Apr 19, 2024.

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Citation: AmphibiaWeb. 2024. <> University of California, Berkeley, CA, USA. Accessed 19 Apr 2024.

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