Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Order Scandentia Wagner, 1855 - tree shrews Family Tupaiidae Gray, 1825 - tree shrews Genus Tupaia Raffles, 1821 - tree shrews Tupaia gracilis Thomas, 1893 - slender tree shrew 1 [Tupaia gracilis gracilis]ᵀ Thomas, 1893 2 Tupaia gracilis edarata Lyon, 1913 3 Tupaia gracilis inflata Lyon, 1906