The Chaotung vole (Eothenomys olitor), also known as the black-eared red-backed vole, is a species of rodent in the family Cricetidae. It is found only in Yunnan, Sichuan, and Guizhou provinces of south-central China.
It inhabits montane forests from 1,800 to 3,350 metres elevation.
References
Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.