Olaus Magnus is the first who has taken notice of the Leming; and all that Gesner, Scaliger, Ziegler, Johnston, and others have said respecting him, is extracted from that author. But Wormius, who made very strict researches, speaks more particularly. "The leming (says he) is of the shape of a mouse, but has a shorter tail: his body is about five inches long, and is covered with fine hair of various colours. The extremity of the upper part of the head, the neck and shoulders are black, and the rest of the body is reddish, intermixed with small black spots of various figures excepting the tail, which is brown, and not above half an inch long. Some of them have red hairs about the mouth, resembling whiskers, six of which are considerably longer than the rest. The mouth is small, and the upper lip divided like the squirrel. Two sharp, incisive, and crooked teeth, shoot from the upper jaw, the roots of which penetrate to the orbit of the eyes: in the lower jaw they have teeth conformable to the upper; a little distance from these on each side are placed three grinders. The tongue is pretty large, and extends to the extremity of the incisive teeth. The remains of the food found in the throat of this animal, induces us to imagine he ruminates. The eyes are little and black; the ears round and inclining towards the neck; the legs before are shorter than those behind; the feet are cloathed with hair, and armed with five very sharp and crooked claws; the middle claw is the longest and the fifth is like the spur of a cock, sometimes placed very high up the leg. The hair on the belly is whitish, bordering a little on yellow, &c."