This species is known only from the Adamawa Plateau in north-central Cameroon.
Habitat and Ecology
It lives in gallery forests in a landscape of montane grassland and wooded savannah, and has been found breeding in streams.
There is very little information on its population status, and it has only been recorded on a few occasions.
It is probably suffering from continuing degradation of its montane habitats as a result of expanding agriculture, overgrazing by livestock, wood extraction, fire, and human settlement.
It has not been recorded from any protected areas, and some form of protection of the remaining habitat on the Adamawa Plateau is urgently needed. Further survey work is necessary to determine the current population status of this species.
Red List Status
Listed as Endangered because its Area of Occupancy is less than 500km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its habitat on the Adamaoua Plateau.
Amietophrynus has been synonymised with Sclerophrys, and as a result all species that were previously in the former genus are now known under Sclerophrys (Ohler and Dubois 2016).
The taxonomic status of this species is uncertain. It was described as a subspecies of Amietophrynus funereus (Hulselmans 1977), and was considered a distinct species by Joger (1982) and Böhme and Schneider (1987). J.-L. Amiet (pers. comm.) considers that it is a junior synonym of Amietophrynus villiersi, an opinion not shared by U. Joger (pers. comm.).
This is an amended assessment created to account for the change in generic name.
Ulrich Joger, Mills Tandy, Jean-Louis Amiet 2016. Sclerophrys djohongensis. The IUCN Red List of Threatened Species 2016: e.T54630A107345462. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T54630A107345462.en