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
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,
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.
Written by Albertina P. Lima, William E. Magnusson, Marcelo Menin, Luciana K. Erdtmann, Domingos J. Rodrigues, Claudia Keller, Walter Hödl (bill AT inpa.gov.br), Instituto Nacional de Pesquisas da Amazônia
First submitted 2007-11-21
Edited by Kellie Whittaker (2009-06-16)
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Citation: AmphibiaWeb: Information on
amphibian biology and conservation. [web application]. 2016. Berkeley, California:
(Accessed: Feb 10, 2016).
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