Oryzomys nitidus (Thomas, 1884) . Proc. Zool. Soc. Lond., 1884:452.

TYPE LOCALITY: Peru, Junin Dept. (Tulumayo Valley), Amable Maria (about 10 km south of San Ramon, 11° 10' S., 75° 19' W.) .

DISTRIBUTION: Ecuador; Peru; Bolivia; N.W. Argentina; S. Brazil.

COMMENT: Includes boliviae and legatus; nitidus was formerly included in capito; subgenus Oryzomys; see Gardner and Patton, 1976, Occas. Pap. Mus. Zool. La. St. Univ., 49:38-40; but also see Massoia, 1974, Rev. Invest. Agro. INTA, ser. 5, Patalogia Vegetal., 11(1). Hershkovitz, 1966, Z. Saugetierk., 31: 138, included nitidus in alfaroi . Gardner and Patton, 1976, Occas. Pap. Mus. Zool. La. St. Univ., 49:38-40, stated that bolivaris and intermedius probably belonged in nitidus . ALG states that bolivaris is a synonym of rivularis and that intermedius has no status, being a renaming of laticeps, which is a subjective synonym of capito .