Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Primates Linnaeus, 1758 - primates
       Suborder Strepsirrhini Geoffroy Saint-Hilaire, 1812
         Infraorder Lorisiformes Gregory, 1915
           Family Lorisidae Gray, 1821, orth. cons. - lorises, pottos, and galagos
             Genus Loris Geoffroy Saint-Hilaire, 1796 - slender loris
               Loris tardigradus (C. Linnaeus, 1758) - slender loris