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 nicobarica (Zelebor, 1869) - Nicobar tree shrew
             1 [Tupaia nicobarica nicobarica]ᵀ (Zelebor, 1869)
             2 Tupaia nicobarica surda Miller, 1902