Order Lagomorpha Author Robert S. Hoffmann text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 807 827 book chapter http://doi.org/10.5281/zenodo.7353088 1-56098-217-9 7353088 Sylvilagus bachmani (Waterhouse, 1839) . Proc. Zool. Soc. Lond., 1839:103 . TYPE LOCALITY: "Between Monterey and Santa Barbara". Type locality restricted by Nelson (1909:247) to San Luis Obispo, California , USA . DISTRIBUTION: W Oregon ( USA ) S of Columbia River to Baja California ( Mexico ), E to Cascade-Sierra Nevada Range ( USA ). STATUS: "Still quite abundant" ( Chapman and Ceballos, 1990 ). SYNONYMS: cerrosensis (J. Allen, 1898 ) ; cinerascens (J. Allen, 1890) ; exiguus Nelson , 1907; howelli Huey, 1927; macrorhinus Orr , 1935; mariposae Grinnell and Storer, 1916; peninsularis (J. Allen, 1898 ) ; riparius Orr , 1935; rosaphagus Huey, 1940; tehamae Orr , 1935; trowbridgii Baird, 1855; ubericolor (Miller, 1899); virqulti Dice, 1926. COMMENTS: Placed in genus Microlagus together with idahoensis by Gureev (1964:171) . This is the only species of Sylvilagus known to have retained the putative ancestral karyotype (2n=48) shared by all known Lepus , and by Romerolagus ( Robinson et al., 1981 , 1984). Reviewed by Chapman (1974 , Mammalian Species, 34).