Mr. Grew first described this animal from a skin preserved in the cabinet of the Royal Society in London. All the other armadillos have two bucklers, one on the shoulders, and the other on the rump, but this has but one, which is upon his shoulders. He is called the weasel armadillo, because his head is nearly of the same form as a weasel. From the description of this animal given by Grew, it appears, that his body is about ten inches in length, his head three, and his tail five; the legs two or three inches in height; the forehead large and flat, small eyes, and the ears an inch long, he has five toes on each foot, the three in the middle being the largest. The armour of the head and legs is composed of round scales, about a quarter of an inch diameter, that on the neck consisted of one piece, as did the buckler on the shoulders composed of several rows of scales like those of the armour; these rows on the buckler, in this species, as in all others are continuous, and join by a symphysis. The rest of the body, from the buckler on the shoulders to the tail, is covered with moveable bands, parted from each other by a supple membrane: these bands are eighteen in number; those nearest the shoulders are the largest, and are composed of small squares. The posterior are intermixed with round and square pieces, and the extremity of the armour near the tail is of a parabolic figure. The first half of the tail is encircled with six rings, composed of small square pieces, and the lower part is covered with irregular scales. The breast, belly, and ears, are naked, as in the other species. It should seem that, of all armadillos, this has the most facility to contract and roll himself up in a ball, by his moveable bands which extend to the tail. Linnæus who must have seen the descriptions of Grew and Ray, who both agree with that we have given, has indicated this animal with one band only, instead of eighteen: founded on an evident mistake, by having taken the _tatu seu armadillo Africanus_ of Seba for the _tatu mustelinas_ of Grew, which even according to the descriptions of these two authors, are very different from each other. It is doubtful whether the tatou of Seba exists, at least as he has described him, but the animal given in Grew's description is a real existing species.