Proechimys bolivianus Thomas, 1901 . Ann. Mag. Nat. Hist., ser. 7, 8:537.

TYPE LOCALITY: Bolivia, Dept. La Paz, Mapiri (1,000 m) .

DISTRIBUTION: Upper Amazon.

COMMENTS: Subgenus Proechimys . Not recognized by Nowak (1991:943), but listed by Corbet and Hill (1991:205). Listed as a subspecies of cayennensis (= guyannensis) by Cabrera (1961:519).