Akodon toba Thomas, 1921 . Ann. Mag. Nat. Hist., ser. 9, 7:178.

TYPE LOCALITY: Paraguay, Presidente Hayes Dept., northern Chaco, Jesematathla, 100 m .

DISTRIBUTION: Chaco of W Paraguay, E Boliva, and N Argentina.

COMMENTS: Subgenus Akodon, varius group sensu Myers (1989) . Relegated to a subspecies of A. varius by Cabrera (1961); karyotypic and morphological discrimination from varius proper summarized by Myers (1989).