This species is known from southern China in Guangxi and Guangdong Provinces, from 450-1,870m asl, and from only two specimens in northern Viet Nam. One of these was collected on Mount Fan Si Pan near Sa Pa, Lao Cai Province (Liu et. al. 2000), and the other was collected at 1,900m asl in O Quy Ho, Sa Pa District, which is very close to, but on the other side of, Mount Fan Si Pan. It is likely to occur more widely than currently recorded.
Habitat and Ecology
This species inhabits forest, and has not been found in open areas. Its breeding habits are not known, but it presumably breeds in water by larval development.
It is uncommon.
The threats that it faces are relatively unknown although presumably habitat destruction and degradation are important.
All known localities of this species are within protected areas. In Viet Nam these are within Hoang Lien Son National Park. Further documentation of the species' extent of occurrence, population status and ecological requirements in Viet Nam is needed.
Raoul Bain, Annemarie Ohler, Michael Wai Neng Lau, Yuan Zhigang 2004. Bufo cryptotympanicus. In: IUCN 2014