This species is restricted to central and southern Yunnan Province, China, from 1,650-2,200m asl. It presumably occurs in northern parts of Southeast Asia, in particular in northern Viet Nam, but this has not yet been confirmed.
Habitat and Ecology
It inhabits fast-flowing hill streams and riparian habitats in forests and grassland, as well as drainage ditches by roadsides, and ponds. Breeding takes place in water.
It is a rare species, but its habits make it hard to find. It appears to be in serious decline.
Over-collecting for food is a serious threat to this species; habitat loss due to subsistence agriculture and wood extraction is an additional threat.
The range of this species includes several protected areas, including Wuliangshan and Huanglianshan National Nature Reserves. There is a need to control harvest and trade in this species.
Wu Guanfu, Lu Shunqing, Yang Datong, Fei Liang 2004. Nanorana unculuanus. In: IUCN 2014