Subspecies and Distribution. R.m.mariannaDesmarest,1822—Luzon|andassociatedsmallerIs. R.m.barandanaHeude,1888—MindoroI. R. m. nigella Hollister, 1813 — Mindanao, Basilan, Samar, and Leyte Is. In addition to its native range, introduced populations of this species are found on the islands of Guam, Saipan and Rota in the Mariana Is and Pohnpei in the Caroline Is. The Philippine Brown Deer was also introduced to the Japanese Bonin Islands, where it later became extinct. in Cervidae

Subspecies and Distribution. R.m.mariannaDesmarest,1822—Luzon|andassociatedsmallerIs. R.m.barandanaHeude,1888—MindoroI. R. m. nigella Hollister, 1813 — Mindanao, Basilan, Samar, and Leyte Is. In addition to its native range, introduced populations of this species are found on the islands of Guam, Saipan and Rota in the Mariana Is and Pohnpei in the Caroline Is. The Philippine Brown Deer was also introduced to the Japanese Bonin Islands, where it later became extinct.