Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Lagomorpha Brandt, 1855 - lagomorphs
       Family Leporidae Batsch, 1788 - hares and rabbits
         Genus Lepus Linnaeus, 1758 - hares
           Subgenus Proeulagus Gureev, 1964
             ?Lepus callotis Wagler, 1830 - white-sided jack rabbit
               1 [Lepus callotis callotis]ᵀ Wagler, 1830
               2 Lepus callotis gaillardi Mearns, 1896