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Description
Males 46-54 mm, females 46-55 mm. The skin is smooth in males and granular in females. The dorsal surface usually has irregular brown and black patches, but some individuals are almost uniform reddish or dark brown. There may be a light mid-dorsal line. The head is triangular, and the snout pointed. A line of tubercles extends from behind the eye along the side to the base of the legs. The belly is gray to brown.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Brazil, Colombia, Ecuador, Peru

View distribution map using BerkeleyMapper.

Occurs throughout the Reserva Florestal Adolpho Ducke in Brazil.

Life History, Abundance, Activity, and Special Behaviors
The species is terrestrial and diurnal. In the Reserva Florestal Adolpho Ducke, the diet consists mainly of mites, ants, spiders, beetles and crickets. Reproduction occurs mainly between March and May. Breeding groups form for 2-3 days in pools or seeps near the headwaters of streams. Males call during the day and night, and more than 100 females can be found in one day at a single breeding site. Breeding groups form at different sites throughout the season, but it is not known whether individuals breed at different sites during a single breeding season. Clutches contain about 450 eggs.

Comments
Juveniles are similar to Dendrophryniscus minutus in general form, but the ventral surface of D. minutus is black at the front, and spotted black and white on the hind part.

Species Account Citation: AmphibiaWeb 2013 Rhinella proboscidea <http://amphibiaweb.org/species/8007> University of California, Berkeley, CA, USA. Accessed Jul 4, 2020.

Citation: AmphibiaWeb. 2020. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 4 Jul 2020.

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