Ctenomys azarae Thomas, 1903 . Ann. Mag. Nat. Hist., ser. 7, 11:228.

TYPE LOCALITY: Argentina, Buenos Aires Prov. (37°45'S, 65°W) .

DISTRIBUTION: Only known from La Pampa Prov. (Argentina).

COMMENTS: Considered distinct from mendocinus by Roig and Reig (1969:670). The chromosome no. is 2n=47-48.