Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Lagomorpha Brandt, 1855 - lagomorphs
       Family Leporidae Batsch, 1788 - hares and rabbits
         Genus Sylvilagus Gray, 1867 - cottontails
           Subgenus Tapeti Gray, 1867
             Sylvilagus palustris (Bachman, 1837) - marsh rabbit
               1 [Sylvilagus palustris palustris]ᵀ (Bachman, 1837) - marsh rabbit
               2 Sylvilagus palustris hefneri Lazell, 1984 - Lower Keys rabbit
               3 Sylvilagus palustris paludicola (Miller & Bangs, 1894)