Oryzomys bolivaris J. A. Allen, 1901 . Bull. Am. Mus. Nat. Hist., 14:405.

TYPE LOCALITY: Ecuador, Bolivar Prov., Porvenir, 1800 m .

DISTRIBUTION: Lowland evergreen forest from E Honduras, through E Nicaragua, Costa Rica and Panama, to W Colombia and W Ecuador.

SYNONYMS: alleni, bombycinus, castaneus, orinus, rivularis.

COMMENTS: Names conventionally applied to this species include bombycinus, as reviewed by Pine (1971), and rivularis, as discussed by Gardner and Patton (1976). Priority of bolivaris presented by Musser and Gardner (in litt.), who summarized the morphological variation and geographic distribution of the species.