Oryzomys xantheolus Thomas, 1894 . Ann. Mag. Nat. Hist., ser. 6, 14:354.

TYPE LOCALITY: Peru, Piura Dept., Tumbez .

DISTRIBUTION: W. Peru; perhaps S. W. Ecuador.

COMMENT: Subgenus Oryzomys; see Gardner and Patton, 1976, Occas. Pap. Mus. Zool. La. St. Univ., 49:24.'

ISIS NUMBER: 5301410008035067001.