Class [Mammalia] Linnaeus, 1758 - mammals
   Order Rodentia Bowdich, 1821 - rodents
     Family Sciuridae Batsch, 1788 - squirrels, chipmunks, marmots, and prairie dogs
       Subfamily Sciurinae Batsch, 1788 - tree and ground squirrels
         Genus Callosciurus Gray, 1867 - Oriental tree squirrels
           01 Callosciurus adamsi Kloss, 1921 - ear-spot squirrel
           02 Callosciurus albiculus see Callosciurus albescens Bonhote, 1901
           03 Callosciurus baluensis Bonhote, 1901 - Kinabalu squirrel
           04 Callosciurus caniceps Gray, 1842 - grey-bellied squirrel
           05 Callosciurus erythraeus Pallas, 1779 - belly-banded squirrel
           06 Callosciurus finlaysonii Horsfield, 1823 - Finlayson's squirrel
           07 Callosciurus inornatus Gray, 1867
           08 Callosciurus melanogaster Thomas, 1895
           09 Callosciurus nigrovittatus Horsfield, 1823 - black-banded squirrel
           10 Callosciurus notatus (Boddaert, 1785) - plantain squirrel
           11 Callosciurus orestes Thomas, 1895 - Bornean black-banded squirrel
           12 Callosciurus phayrei Blyth, 1856
           13 Callosciurus prevostii Desmarest, 1822 - Prevost's squirrel
           14 Callosciurus pygerythrus I. Geoffroy Saint Hilaire, 1833 - Irrawaddy squirrel
           15 Callosciurus simus - sculptor squirrel see Glyphotes simus Thomas, 1898