Order Rodentia - Suborder Hystricognathi Author Charles A. Woods text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 771 806 book chapter http://doi.org/10.5281/zenodo.7353083 1-56098-217-9 7353083 Cryptomys Gray, 1864 . Proc. Zool. Soc. Lond., 1864: 124 . TYPE SPECIES: Georychus holosericeus Wagner, 1842 (= Bathyergus hottentotus Lesson, 1826 ). SYNONYMS: Coetomys, Typhloryctes . COMMENTS: Originally a subgenus of Georychus . See review by Nevo et al. (1987) .