Ctenomys australis Rusconi, 1934 . Rev. Chil. Nat. Hist., 38:108.

TYPE LOCALITY: Argentina, Buenos Aires Prov .

DISTRIBUTION: E Argentina in Buenos Aires Prov.

COMMENTS: Considered distinct from porteousi by Contreras and Reig (1965:62) and Roig and Reig (1969:670). The chromosome no. is 2n=48.