Iomys Thomas 1908
Iomys Thomas 1908, Ann. Mag. Nat. Hist., ser. 8, 1: 1.
Type Species: Pteromys horsfieldii Waterhouse 1838
Species and subspecies: 2 species with 4 subspecies:
Species Iomys horsfieldii (Waterhouse 1837)
Subspecies Iomys horsfieldii subsp. horsfieldii Waterhouse 1837
Subspecies Iomys horsfieldii subsp. davisoni Thomas 1886
Subspecies Iomys horsfieldii subsp. penangensis Chasen 1940
Subspecies Iomys horsfieldii subsp. thomsoni Thomas 1900
Species Iomys sipora Chasen and Kloss 1927
Discussion: Subtribe Glaucomyina (see also Eoglaucomys). Formerly included winstoni, here placed in Hylopetes .