This Bornean endemic is known only from the montane forests of Kinabalu, Malaysia. Attempts to locate the species on Gunung Mulu in Sarawak have not been successful. The altitudinal range is 1,500-3,050m asl.
Habitat and Ecology
Most records are from moist montane and sub-alpine forest above 2,500m asl. Adults are terrestrial, and breeding is presumed to take place in forest streams.
The current population status of this species is unknown. It is rarely encountered.
The major threat to this species in the future is likely to be selective logging.
It occurs in Kinabalu National Park, which is well protected. Surveys of potentially suitable areas of habitat in adjacent parts of Borneo are needed to determine whether or not this species might occur elsewhere, and also to help better understand its current population status.
Red List Status
We follow Inger (1966) and Malkmus et al. (2002) in considering Ansonia altitudinis (Smith 1931) to be a synonym of A. fuliginea.
Robert Inger, Indraneil Das, Robert Stuebing, Maklarin Lakim, Paul Yambun 2004. Ansonia fuliginea. In: IUCN 2014