Norvegicus) or smaller than the harvest mouse; and they all 'have habits generally similar to those of one or other of the English species, although some live in trees like squirrels, or in the water; among the latter being the brown-footed rat (M.
LEMMING, the native name of a small Scandinavian rodent mammal Lemmus norvegicus (or L.
Norvegicus), and in a still wider sense to all the larger representatives of the genus Mus, as to many other members of the family Muridae.
Norvegicus) is distinguished by its large size, brownish grey colour, short tail and ears, stout skull, and the possession of from Jo to 12 teats.
It breeds abundantly in some seasons on the fells of Lapland, its appearance depending chiefly on the presence of lemmings (Lemmus norvegicus), on which it mainly preys.