Thalpomys Thomas, 1916 . Ann. Mag. Nat. Hist., ser. 8, 18:339.

TYPE SPECIES: Thalpomys lasiotis Thomas, 1916 (not Mus lasiotis of Lund, 1841).

COMMENTS: Akodontine. Recognized as a genus, as initially diagnosed, by Gyldenstolpe (1932); reclassified as a subgenus of Akodon by Ellerman (1941) and so observed by Cabrera (1961). See Hershkovitz (1990a) for availability of genus-group name, its differentiating characters from typical Akodon, and definition of included species.