Oryzomys altissimus Osgood, 1933 . Field Mus. Nat. Hist. Publ. Zool. Ser., 20:5.

TYPE LOCALITY: Peru, Mt. Pasco, La Quinua, 3480 m .

DISTRIBUTION: Andean Ecuador and Peru.

COMMENT: Subgenus Microryzomys; see Voss and Linzey, 1981, Misc. Publ. Mus. Zool. Univ. Mich., 159:13. Kiblisky, 1969, Experientia, 25: 1338, and Gardner and Patton, 1976, Occas. Pap. Mus. Zool. La. St. Univ., 49:11, 24, considered altissimus a subspecies of minutus .

ISIS NUMBER: 5301410008035003001.