Octomys mimax Thomas, 1920 . Ann. Mag. Nat. Hist., ser. 9, 6:118.

TYPE LOCALITY: Argentina, Catamarca Prov., La Puntilia .

DISTRIBUTION: Foothills and lower montane slopes of the Andes, and portions of the Monte desert of Catamarca, La Rioja, San Juan, and N Mendoza Provs. (Argentina).

SYNONYMS: joannius.

COMMENTS: Occurs at high elevations in Andes, and is similar in habits to the North American Woodrat (Redford and Eisenberg, 1992).