Pseudoryzomys wavrini (Thomas, 1921) . Ann. Mag. Nat. Hist., ser. 9, 7:177.

TYPE LOCALITY: Paraguay, N. Chaco, Jesematathla, west of Concepcion, 100 m .

DISTRIBUTION: Bolivia; Paraguay; N. Argentina.

COMMENT: Formerly included in Oryzomys; see Hershkovitz, 1962, Fieldiana Zool., 46:208. Pine and Wetzel, 1975, Mammalia, 39:649-655, reviewed this species.

ISIS NUMBER: 5301410008044001001.