Gray wolf. (Topical Term)

Mammal species of the world, 3rd ed., via WWW, Mar. 20, 2008 (Canis lupus. Common name: wolf. Includes the domestic dog as a subspecies, with the dingo provisionally separate--artificial variants created by domestication and selective breeding. Provisionally includes rufus, although this problematic group (rufus, floridanus, gregoryi) should probably be best listed as incertae sedis. Lists 37 subspecies)

North American mammals Web site, Mar. 20, 2008 (Canis lupus (Gray Wolf). Also known as: Wolf, Timber Wolf, Tundra Wolf, Lobo, Prairie Wolf, Mexican Wolf, Arctic Wolf)

Corbet world list of mammalian species: p. 106 (Canis lupus, wolf)

ITIS, Mar. 20, 2008 (Canis lupus. Common names: gray wolf, wolf. Lists 38 subspecies)

NCBI taxonomy browser, Mar. 20, 2008 (Canis lupus (gray wolf))

Wikipedia, Mar. 20, 2008 (Gray wolf (Canis lupus), also known as the timber wolf or wolf; DNA sequencing and genetic drift studies indicate that the gray wolf shares a common ancestry with the domestic dog (Canis lupus familiaris). A number of other gray wolf subspecies have been identified, though the actual number of subspecies is still open to discussion; subspecies listed: Arabian Wolf, Canis lupus arabs; Arctic Wolf, Canis lupus arctos; Caspian Sea Wolf, Canis lupus cubanensis; Dingo, Canis lupus dingo; Domestic Dog, Canis lupus familiaris; Eastern Wolf, Canis lupus lycaon; Eurasian Wolf, Canis lupus lupus; Great Plains Wolf, Canis lupus nubilus; Italian Wolf, Canis lupus italicus; Mackenzie Valley Wolf, Canis lupus occidentalis; Mexican Wolf, Canis lupus baileyi; Russian Wolf, Canis lupus communis; Southern-East Asian Wolf, Canis lupus pallipes; Tundra Wolf, Canis lupus albus; Vancouver Island Wolf, Canis lupus crassodon; disputed subspecies: Iberian Wolf, Canis lupus signatus)