Geomyidae
Thomomys anitae
Thomomys atrovarius
Thomomys bottae
Thomomys bulbivorus
Thomomys chihuahue
Thomomys fulvus
Thomomys idahoensis
Thomomys laticeps
Thomomys mazama
Thomomys monticola
Thomomys talpoides
Thomomys townsendii
Thomomys umbrinus