Bibimys chacoensis (Shamel, 1931) . J. Wash. Acad. Sci., 21: 247.

TYPE LOCALITY: Argentina, Chaco Prov., Las Palmas .

DISTRIBUTION: N. and C. Argentina.

COMMENT: Included in Akodon by Cabrera, 1961:442, but Massoia, 1980, Ameghiniana, 17: 280-287, transferred chacoensis to Bibimys .