Akodon dayi Osgood, 1916 . Field Mus. Nat. Hist. Pubi., Zool. Ser., 10:208.

TYPE LOCALITY: Bolivia, Cochabamba Dept., Todos Santos, Chapare River .

DISTRIBUTION: C to SC Bolivia, 250- 700 m.

COMMENTS: Subgenus Akodon, varius group sensu Myers (1989) . Interpreted as a subspecies of A. tapirapoanus (= Bolomys lasiurus) by Cabrera (1961); considered a species closely related to A. toba by Myers (1989).