Bunomys Thomas, 1910 . Ann. Mag. Nat. Hist., ser. 8, 6:508.

TYPE SPECIES: Mus coelestis Thomas, 1896 .

SYNONYMS: Bunomys (Grandidier, 1905, not Thomas, 1910), Frateromys .

COMMENTS: An endemic of Sulawesi. Recognized as a genus by Tate (1936), but included in Rattus by Ellerman (1941), Simpson (1945), Laurie and Hill (1954), and Misonne (1969); treated as separate genus by Musser and Newcomb (1983), Musser (1984, 1987, 1991), and Corbet and Hill (1991). Phylogenetic relationships unresolved, but part of Sulawesi New Endemics; spermatozoal morphology distinctive although some species resemble that in species of Rattus, but resemblance reflects shared primitive features (Breed and Musser, 1991). Kitchener et al. (1991a) considered Bunomys a very close relative of Paulamys, a Flores endemic; both are probably ecological if not morphological equivalents (Musser et al., 1986). Geographic and altitudinal distributions of species, along with forest types, summarized by Musser and Dagosto (1987), Musser (1991), and Musser and Holden (1991). Grandidier (1905:50) proposed Bunotnys for a Madagascar rat, and Sody (1941:260) used Frateromys, but both are nomina nuda.