This is a Dog-like, slim, narrow-muzzled animal, with clean and rather short limbs, a foxy head, and a tail about half as long as the body, which in males is forty-five inches in length. It is about the size of a Jackal, and the fur is short, but rather woolly and greyish-brown, faintly suffused with yellow in colour. The fur on the back is deep brown near the skin, and yellowish-brown towards the tip. It has from twelve to fourteen black bands on the body, and the tail has long hairs at the tip only. The eyes are keen, large, and full, and they are black and have a nictitating membrane. The animal walks half on its toes and half on its soles or palms, and thus is a semi-plantigrade, the body being brought nearer the ground than that of the Wolf in running. There is a marsupial pouch, but the bones are mere cartilages. The Dog-headed Thylacinus, or the Zebra-Wolf of the colonists of Van Diemen’s Land, thus described, has often been taken for one of the Carnivora, and certainly there are great resemblances between it and the Dogs. The canine teeth are of large size, but they are recurved at the top, and in the upper jaw are separated from the incisors by a space, into which the point of the lower canine fits when the jaws are closed. This is different in the Dogs, whose lower canine passes on the outer side of the upper one when the mouth is closed. The premolar of the Thylacinus has a small cusp behind, but in the lower jaw the premolars are isolated, and do not form a continuous cutting and masticating ridge. It is also to be remembered that this animal has a peculiar lower jaw, as it is one of the Marsupials, and the angle is inflected. It is a Marsupial, with some structures which foreshadow those of the more highly-developed Dog. [Illustration: DOG-HEADED THYLACINUS.]