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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)

Description
Males 14-17 mm, females 16-18 mm. The dorsal coloration has different tones of brown. A dark brown lateral stripe runs from the snout to midbody. There are blue-white dots below the lateral stripe and on the toes. Males have lateral expansions on the third finger during the breeding season. The vocal sac of males is whitish to dark gray. The throat region of females is white. Juveniles have a dark head, and light brown on the upper surface of the body.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Brazil, Suriname

View distribution map in BerkeleyMapper.

Found throughout the Reserva Florestal Adolpho Ducke in Brazil.

Life History, Abundance, Activity, and Special Behaviors
The species is terrestrial and diurnal. Adults feed mainly on termites, flies and beetles. Juveniles eat mainly collembolans and mites. Reproduction occurs between November and March, with a peak in January. Females deposit about 3-6 eggs out of water in rolled or doubled fallen leaves, where the tadpoles develop to metamorphosis. Adult males are territorial, and tend the eggs and tadpoles.

Comments

Colostethus sp. are similar, but have a continuous dark brown lateral stripe from the snout to the cloaca, forming a circle around the body, an orange-brown dorsum, and gray hind legs. Juvenile Adenomera andreae and Eleutherodactylus fenestratus lack the dark brown lateral stripe.

Species Account Citation: AmphibiaWeb 2009 Anomaloglossus stepheni <https://amphibiaweb.org/species/1611> University of California, Berkeley, CA, USA. Accessed Jan 25, 2025.

Citation: AmphibiaWeb. 2025. <https://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 25 Jan 2025.

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