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 Sylvilagus Gray, 1867 Sylvilagus audubonii (Baird, 1858) - desert cottontail Sylvilagus audubonii confinis J. Allen, 1898