Chaetophractus villosus (Desmarest, 1804) . Tabl. Meth. Mamm., 24:28.

TYPE LOCALITY: Argentina, Buenos Aires Province, between 35° S. and 36° S .

DISTRIBUTION: Chaco of Paraguay; Uruguay, Mendoza, Cordoba, Santa Fe, south to Santa Cruz (Argentina) and Chikchico (Chile); probably Chaco of Argentina and Bolivia.

COMMENT: Type locality discussed by Cabrera, 1958:214.

ISIS NUMBER: 5301407003003003001.