Rattus osgoodi Musser and Newcomb, 1985. Am. Mus. Nat. Hist., 2814:18.

TYPE LOCALITY: S Vietnam, Tuyen Due Prov., Langbian Peak, 5000 ft.

DISTRIBUTION: Highlands (3000-6000 ft) of southern Vietnam.

COMMENTS: Morphologically and probably phylogenetically related to R. losea.