This species is known from a small area of western Cameroon, from the Rumpi Hills to the southern slopes of the Bamileke Plateau, and Nkongsamba, and from the Oban Hills in Nigeria where it has recently been recorded (M. Gartshore pers. comm.). Its altitudinal range is not clear, but it is probably found mainly at intermediate elevations.
Habitat and Ecology
This is a forest species known from hilly country in the foothills of the Cameroonian mountains, and it does not survive in degraded habitats. It lives close to fast-flowing streams, where it breeds; the larvae can be found in calmer areas of these streams.
It is uncommon.
It is adversely affected by the loss of forest habitat for agriculture, logging, and human settlements.
It occurs in Cross River National Park in Nigeria, but there is a need for improved and strengthened protection of the forest habitat of this species in western Cameroon.
Jean-Louis Amiet, Mary Gartshore 2004. Hylarana asperrima. In: IUCN 2014