This species is currently known only from Teresópolis, in the state of Rio de Janeiro, and Boraceia, in the state of São Paulo, Brazil, from 800-1,500m asl, although its distribution is not well known. It probably occurs more widely than current records suggest, especially in areas between the two known sites.
Habitat and Ecology
This species has only been recorded from streams in primary forest. Larvae have been found in small pools in permanent streams.
Its population status is unknown.
Its habitat is being degraded in Boraceia, where harvesting of palmito palm trees is opening up the forest canopy.
The range of this species is wholly within protected areas, although it is clear that conservation and maintenance of its habitat is required even in these areas.
Red List Status
Data Deficient (DD)
Listed as Data Deficient in view of continuing uncertainties as to its extent of occurrence, status and ecological requirements.
Carlos Alberto Gonçalves da Cruz, Sergio Potsch de Carvalho-e-Silva 2004. Phrynomedusa vanzolinii. The IUCN Red List of Threatened Species 2004: e.T55828A11375261. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T55828A11375261.en