Tylomys fulviventer Anthony, 1916 . Bull. Am. Mus. Nat. Hist., 35:366.

TYPE LOCALITY: Panama, Darien Prov., Tacarcuna, 4200 ft .

DISTRIBUTION: Easternmost Panama.

COMMENTS: Possibly a subspecies of T. mirae according to Cabrera (1961) or a synonym of T. panamensis according to Handley (1966a).