Oldfield white-bellied rat

The Oldfield white-bellied rat, or soft-furred Taiwan niviventer (Niviventer culturatus), is a species of rodent in the family Muridae that is found only in Taiwan. It has also been considered a subspecies of Niviventer niviventer and included in Niviventer confucianus. The body is 13 to 15 cm long, not counting a tail of 17 to 20 cm. It is dark grayish brown above and creamy white below with a sharp border between the two, and the tail is similarly two-toned except for an entirely white tip. The face is grayish with dark patches just in front of and behind the eyes, and the digits are white. It lives in primary hemlock forests, sometimes in secondary habitats, typically at 300 to 2,000 m above sea level, and can be locally common in Yushan National Park.