Subspecies and Distribution. M. e. erminea Linnaeus, 1758 — Finland, Norway, NW Russia, and Sweden. M. e. aestiva Kerr, 1792 — most of mainland N & C Europe to C Asia in Kazakhstan, Kyrgyzstan, and Tajikistan. M. e. alascensis Merriam, 1896 — S Alaska. M. e. anguinae Hall, 1932 — SW Canada (Vancouver I, British Columbia). M. e. arctica Merriam, 1896 — Alaska and NW Canada. M. e. bangsi Hall, 1945 — C Canada and NC USA. M. e. celenda Hall, 1944 — Alaska (Prince of Wales I). M.e. cicognanii Bonaparte, 1838 — SE Canada and NE USA. M. e. fallenda Hall, 1945 — W Canada (British Columbia) and NW USA (N Washington). M. e. ferghanae Thomas, 1895 — Afghanistan, N India, and Pakistan. M.e. gulosa Hall, 1945 — NW USA (E Washington). M.e. haidarum Preble, 1898 — W Canada (Queen Charlotte Is, British Columbia). M.e. hibernica Thomas & Barrett-Hamilton, 1895 — Ireland. M.e. imatis Hall, 1944 — Alaska (Baranof I). M.e. invicta Hall, 1945 — SW Canada (Alberta) and NW USA (Idaho & Montana). M.e. kadiacensis Merriam, 1896 — Alaska (Kodiak I). M.e. kaneti Baird, 1857 — NE China, Russia (E Siberia). M.e. karaginensis Jurgenson, 1936 — NE Russia (Karaginsky I). M.e. lymani Hollister, 1912 — E Russia (Altai Mts, Siberia). M.e. minima Cavazza, 1912 — Switzerland. M.e. mongolica Ognev, 1928 — NW China and Mongolian Altai. M. e. muricus Bangs, 1899 — USA (N California, Colorado, Idaho, New Mexico, Nevada, Oregon, South Dakota, Utah & Wyoming). M. e. nippon Cabrera, 1913 — Japan. M.e. olympica Hall, 1945 — NW USA (Olympic Peninsula, Washington). M.e. polaris Barrett-Hamilton, 1904 — Greenland. M.e.richardsonii Bonaparte, 1838 — N Canada. M.e. ricinae G. S. Miller, 1907 — Scotland (Islay I). M.e.salva Hall, 1944 — SE Alaska (Admiralty I). M.e.seclusa Hall, 1944 — SE Alaska (Suemez I). M.e.sempler Sutton & Hamilton, 1932 — Canada (Franklin & Keewatin Districts). M.e.stabilis Barrett-Hamilton, 1904 — Great Britain. M.e.streatori Merriam, 1896 — W USA (NE California, Oregon & coastal Washington). M.e.teberdina Kornejv, 1941 — Russian Caucasus. M.e. tobolica Ognev, 1923 — W Siberia. Introduced to New Zealand. in Mustelidae