Cryptomys is the genus of mole-rats, endemic to Africa. Most of the species formerly placed in this genus were moved to the genus Fukomys in 2006.
Kock D, Ingram CM, Frabotta LJ, Honeycutt RL, Burda H. 2006. On the nomenclature of Bathyergidae and Fukomys n. gen. (Mammalia: Rodentia). Zootaxa 1142: 51–55.
Woods, C. A. and C. W. Kilpatrick. 2005. pp 1538–1600 in Mammal Species of the World a Taxonomic and Geographic Reference 3rd ed. D. E. Wilson and D. M. Reeder eds. Smithsonian Institution Press, Washington D.C.