The following information was found in The Wolf Alamanac by Robert H. Busch.
*alces: the Kenai Peninsula wolf; one of the largest of North American wolves; extinct by 1925.
arctos: the white wolf of the high Arctic, found from Melville Island to Ellesmere Island.
baileyi: the smallest North American gray wolf, originally found from Mexico to the southwest United States; according to many authorities, indistinguishable from C.l. monstrabilis and C.l. mogollonensis.
*beothucus: the Newfoundland wolf, now extinct; reported as almost pure-white.
*bernardi: limited to Banks and Victoria Islands in the Arctic, described as white with black-tipped hair along the spinal ridge; not recognized as a subspecies until 1943; extinct sometime between 1918 and 1952.
columbianus: a large wolf found in the Yukon, British Columbia, and Alberta.
crassodon: a medium-size, grayish wolf found on Vancouver Island.
*fuscus: a brownish-colored wolf from the Cascade Mountains; extinct by 1940.
griseoalbus: a large wolf found in northern Alberta, Saskatchewan, and Manitoba.
hudsonicus: a light-colored wolf found in northern Manitoba and the Northwest Territories.
irremotus: a medium-size, light-colored wolf from the northern Rocky Mountains.
labradorius: the wolf of Labrador and nothern Quebec.
ligoni: a small, dark-colored wolf from the Alexander Archipelago in the arctic islands.
lycaon: the eastern timber wolf of Canada and the United States; it originally had the largest range of all North American subspecies; the first subspecies to be recognized in North American(1775).
mackenzii: the Northwest Territories wolf; not recognized as a subspecies until 1943.
manningi: the smallest arctic wolf, found on Baffin Island, either white or light-colored; not recognized as a subspecies until 1943.
*mogollonensis: a medium-size wolf found in Arizona and New Mexico; extinct by 1935.
*monstrabilis: a wolf found in Texas and New Mexico; extinct by 1942.
*nubilus: the Great Plains or "buffalo" wolf: extinct by 1926; usually light in color.
occidentalis: a large wolf from Western Canada, also called the Mackenzie Valley wolf.
orion: a white or bery light-colored wolf from Greenland.
pambasileus: a dark-colored wolf from Alaska and the Yukon.
tundrarum: the arctic tundra wolf; light in color.
*youngi: the Southern Rocky Mountain wolf; extinct by 1935; light buff color.
albus: A large, light-colored wolf from the nothern Russian Federation and northern Finland.
arabs: A small, buff-colored wolf from the Arabian peninsula; not recognized as a subspecies until 1934.
campestris: The central Asian wolf, or steppe wolf.
chanco(=laniger): The wolf of Mongolia and China.
cubanensis: Found between the Caspian Sea and the Black Sea; not recognized by some taxonomists.
*deitanus: A small wolf once found in Spain, now extinct; not recognized as a subspecies by some authorities.
desertorum(=palies): Asian desert wolf, found in the arid areas east of the Black Sea; not recognized by some taxonomists.
*hattai(=rex): A wolf once found in Hokkaido, Japan; probably now extinct, although some taxonomists believe that it still survives on Sakhalin Island.
*hodophilax: A wolf once found in Honshu, Japan: extinct by 1935; much smaller than C.l. hattai.
laniger: Please see chanco.
lupus: The most common species throughout Eurasia, and the first named of all wolf subspecies, designated by Linnaeus in 1758.
*minor: A wolf once found in Hungary and Austria: extinct by the early 1900's.
palies: Please see desertorum.
pallipes: A small wolf of India and southern Asia; synonymous with arabs, according to some taxonomists.
rex: Please see hattai.
signatus: The Iberian wolf of Spain and Portgual; not recognized by some taxonomists, although recent genetic work by Robert Wayne at the University of California suggests that it is a true subspecies.
*indicates an extinct subspecies
Canis lups is reclassified in the following groups:
