Lagostomus maximus (Desmarest, 1817) . Nouv. Diet. Hist. Nat., Nouv. ed., 13:117.

TYPE LOCALITY: Unknown; possibly from pampas of Buenos Aires, Argentina; see Cabrera (1961:559) .

DISTRIBUTION: N, C, and E Argentina, S and W Paraguay, SE Bolivia.

SYNONYMS: americana, diana, inmollis, pamparum, petilidens, trichodactylus .