Oryzomys melanostoma (Tschudi, 1844) . Fauna Peruana, p. 182.

TYPE LOCALITY: E. Peru, "Oriental Region," probably Huanuco Dept .

DISTRIBUTION: E. Peru.

COMMENT: Subgenus Oryzomys; see Cabrera, 1961:393. Subgenus Oligoryzomys (OAR) .

ISIS NUMBER: 5301410008035039001.