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 californicus Gray, 1837 - black-tailed jack rabbit
               1 [Lepus californicus californicus]ᵀ Gray, 1837
               2 Lepus californicus deserticola Mearns, 1896
               3 Lepus californicus insularis Bryant, 1891
               4 Lepus californicus magdalenae Nelson, 1907
               5 Lepus californicus melanotis Mearns, 1890
               6 Lepus californicus texianus Waterhouse, 1848