Males 60-70 mm, females 80-90 mm. The dorsum is granular in texture, and the dorsal coloration has a background of various shades of brown with irregular darker patches. The species has parotoid glands posterior to the eyes, but they are not very distinct. The belly is whitish to cream. The throat region of males is greenish yellow in the reproductive season.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Brazil
The species is most often found on the edges of the Reserva Florestal Adolpho Ducke in Brazil and in large open areas.
Life History, Abundance, Activity, and Special Behaviors
The species is terrestrial and nocturnal. In the Reserva Florestal Adolpho Ducke in Brazil, it reproduces in small and large ponds throughout the year, but with a peak in the wet season. Clutches contain around 900 eggs that are deposited on the surface of the water in gelatinous strings. The tadpoles are light gray and live on the bottom of ponds.
Juveniles of Bufo marinus are similar in general form and color to B. granulosus, but B. marinus has distinct parotoid glands behind the eyes, whereas the parotoid glands of B. granulosus are smaller and difficult to see in juveniles.
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 2007-11-07
Edited by Kellie Whittaker (2007-11-29)
Feedback or comments about this page.
Citation: AmphibiaWeb: Information on
amphibian biology and conservation. [web application]. 2016. Berkeley, California:
(Accessed: Apr 29, 2016).
AmphibiaWeb's policy on data use.