Oryzomys polius Osgood, 1913 . Field Mus. Nat. Hist. Pubi., Zool. Ser., 10:97.

TYPE LOCALITY: Peru, Amazonas Dept., mountains east of Balsas, Tambo Carrizal, 5000 ft .

DISTRIBUTION: NC Peru.

COMMENTS: Affinities obscure; compared to O. xantheolus by Osgood (1913).