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