Dicrostonyx groenlandicus Traill, 1823. In Scoresby, Jour. Voy. to Northern Whale-Fishery, p. 4 i 6.

TYPE LOCALITY: Greenland, Jameson's Land (Denmark).

DISTRIBUTION: N. Greenland, west to Baffin, Southampton, Axel Heiberg, Melville and Prince Patrick Isis. (Canada).

COMMENT: Includes clarus and, tentatively, lentus; see Youngman, 1975, Mammals of the Yukon Terr., Nat. Mus. Can. Publ. Zool., 10: 115 (neither taxon has been kayotyped (RSH)). Limits of distribution uncertain; diploid number is 46 for male and female, and the fundamental number is 52. Formerly included in torquatus; see Rausch, 1977, in Sokolov, ed., [Adv. Mod. Theriol.], Acad. Sci. U.S. S.R., Nauka, Moscow, pp. 162- 177. Hall, 1981:835-837, included all N. American taxa except hudsonius under this name. See also comments under genus Dicrostonyx.