Class Mammalia Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Suborder Sciurognathi (Tullberg, 1899) see Suborder Sciuromorpha Brandt, 1855
       Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
         Subfamily Pteromyinae Brandt, 1855 - flying squirrels
           Genus Hylopetes Thomas, 1908 - pygmy flying squirrels
             01 Hylopetes alboniger Hodgson, 1836 - particoloured flying squirrel
             02 Hylopetes baberi (Blyth, 1847)
             03 Hylopetes bartelsi Chasen, 1939
             04 Hylopetes fimbriatus (Gray, 1837) - Kashmir pygmy flying squirrel see Eoglaucomys fimbriatus Gray, 1837
             05 Hylopetes lepidus (Horsfield, 1824) - grey-cheeked flying squirrel
             06 Hylopetes nigripes Thomas, 1893
             07 Hylopetes phayrei Blyth, 1859 - Phayre's flying squirrel
             08 Hylopetes sipora Chasen, 1940
             09 Hylopetes spadiceus Blyth, 1847 - red-cheeked flying squirrel
             10 Hylopetes winstoni Sody, 1949