Subspecies and Distribution. M. m. mephitis Schreber, 1776 — E Canada. M. m. avia Bangs, 1898 — Midwestern USA (Most of Illinois, N half of Missouri & E half of Kansas). M. m. elongata Bangs, 1895 — E & SE USA (Virginia S to E Georgia, Florida, S Alabama & Mississippi). M. m. estor Merriam, 1890 — W USA (S Utah through Arizona and W New Mexico) to N Mexico (Sonora & Chihuahua). M. m. holzerni Mearns, 1897 — SW USA (S California). M. m. hudsonica Richardson, 1829 — C & W Canada and NC USA (from NE Washington to Wisconsin and S into Colorado). M. m. major Howell, 1901 — NW USA (N Nevada & Utah to Oregon & Idaho). M. m. mesomelas Lichtenstein, 1832 — S USA (W Texas & Oklahoma to Arkansas & Louisiana). M. m. nigra Peale & Palisot de Beauvois, 1796 — SE Canada (New Brunswick & Nova Scotia) and E USA (from New England to Ohio & Indiana and S to Mississippi & Alabama. M. m. notata Howell, 1901 — NW USA (C Washington). M. m. occidentalis Baird, 1858 — W USA (N California to SW Oregon). M. m. spissigrada Bangs, 1898 — NW USA (W Washington). M. m. varians Gray, 1837 — S Great Plains USA (E New Mexico, Texas, Oklahoma & Kansas) S to NW Mexico (Chihuahua, Coahuila, Nuevo Leon, and Tamaulipas). in Mephitidae

Subspecies and Distribution. M. m. mephitis Schreber, 1776 — E Canada. M. m. avia Bangs, 1898 — Midwestern USA (Most of Illinois, N half of Missouri & E half of Kansas). M. m. elongata Bangs, 1895 — E & SE USA (Virginia S to E Georgia, Florida, S Alabama & Mississippi). M. m. estor Merriam, 1890 — W USA (S Utah through Arizona and W New Mexico) to N Mexico (Sonora & Chihuahua). M. m. holzerni Mearns, 1897 — SW USA (S California). M. m. hudsonica Richardson, 1829 — C & W Canada and NC USA (from NE Washington to Wisconsin and S into Colorado). M. m. major Howell, 1901 — NW USA (N Nevada & Utah to Oregon & Idaho). M. m. mesomelas Lichtenstein, 1832 — S USA (W Texas & Oklahoma to Arkansas & Louisiana). M. m. nigra Peale & Palisot de Beauvois, 1796 — SE Canada (New Brunswick & Nova Scotia) and E USA (from New England to Ohio & Indiana and S to Mississippi & Alabama. M. m. notata Howell, 1901 — NW USA (C Washington). M. m. occidentalis Baird, 1858 — W USA (N California to SW Oregon). M. m. spissigrada Bangs, 1898 — NW USA (W Washington). M. m. varians Gray, 1837 — S Great Plains USA (E New Mexico, Texas, Oklahoma & Kansas) S to NW Mexico (Chihuahua, Coahuila, Nuevo Leon, and Tamaulipas).