Maxomys ochraceiventer (Thomas, 1894) . Ann. Mag. Nat. Hist., ser. 6, 14:451.

TYPE LOCALITY: Malaysia, Sabah (N Borneo), Gunung Kinabalu, below 3000 ft .

DISTRIBUTION: Sabah and Sarawak (N Borneo), and East Kalimantan (E Borneo); apparently restricted to hills (Medway, 1964).

SYNONYMS: perasper .

COMMENTS: Once treated as a lower altitudinal subspecies of the higher montane alticola (Chasen, 1940), but the two species are sympatric at 3500 ft on slopes of Gunung Kinabalu (Medway, 1977).