Bolomys lactens (Thomas, 1918) . Ann. Mag. Nat. Hist., ser. 9, 1:188.

TYPE LOCALITY: Argentina, Jujuy Prov., Leon, about 1500 m .

DISTRIBUTION: Highlands of SC Bolivia (see Anderson and Olds, 1989) and NW Argentina.

SYNONYMS: leucolimnaeus, negrito, orbus .