Class Mammalia Linnaeus, 1758 - mammals
   Order Lagomorpha Brandt, 1855 - lagomorphs
     Family Leporidae Batsch, 1788 - hares and rabbits
       Genus Sylvilagus Gray, 1867 - cottontails
         01 Sylvilagus aquaticus (Bachman, 1837) - swamp rabbit
         02 Sylvilagus audubonii (Baird, 1858) - desert cottontail
         03 Sylvilagus bachmani (Waterhouse, 1839) - brush rabbit
         04 Sylvilagus brasiliensis (Linnaeus, 1758) - forest rabbit
         05 Sylvilagus cunicularius (Waterhouse, 1848) - Mexican cottontail
         06 Sylvilagus dicei Harris, 1932
         07 Sylvilagus floridanus (Allen, 1890) - eastern cottontail
         08 Sylvilagus graysoni (Allen, 1877) - Tres Marias cottontail
         09 Sylvilagus insonus Nelson, 1904 - Omilteme cottontail
         10 Sylvilagus mansuetus Nelson, 1907
         11 Sylvilagus nuttallii (Bachman, 1837) - Nuttall's cottontail
         12 Sylvilagus palustris (Bachman, 1837) - marsh rabbit
         13 Sylvilagus transitionalis (Bangs, 1895) - New England cottontail
         14 Subgenus Tapeti Gray, 1867
         15 Subgenus Sylvilagus Gray, 1867
         16 Subgenus Microlagus Trouessart, 1897