This species is known only from the summit of Yuruaní tepui, in Bolívar state, Venezuela, at 2,300m asl (05° 19'N; 60° 51'W). It probably has a very restricted distribution.
Habitat and Ecology
It occurs in crevices and on rocks near streams. It breeds by direct development, and it carries its eggs and the juveniles on its back.
It is common within its restricted range.
There are no known threats to the species' habitat at present. However, its restricted range renders it vulnerable to stochastic threatening processes.
The type locality is within the Monumental Natural Los Tepuyes. There is a need for close monitoring of the population status of this species given its restriction to Yuruaní tepui.
Red List Status
Listed as Vulnerable because it is known from only a single location.
This genus has recently been moved from the family Hylidae (Faivovich et al. 2005).
Celsa Señaris, Enrique La Marca 2004. Stefania riveroi. The IUCN Red List of Threatened Species 2004: e.T56033A11415129. http://dx.doi.org/10.2305/IUCN.UK.2004.RLTS.T56033A11415129.en .Downloaded on 18 January 2019