Niviventer culturatus (Thomas, 1917) . Ann. Mag. Nat. Hist., ser. 8, 20:198.

TYPE LOCALITY: Taiwan, Mt Arizan, 8000 ft .

DISTRIBUTION: Endemic to mountains of Taiwan.

COMMENTS: Either listed as a species (Ellerman, 1941), a subspecies of N. niviventer (Ellerman and Morrison-Scott, 1951; Wang and Zheng, 1981), or included in N. confucianus (Musser, 1981b) . It is a distinctive insular form that in morphology resembles mainland N. confucianus, but differs sufficiently that it should be treated as a species until relationships can be assessed by systematic revision of the genus.