. Natural history. Zoology. 140 MAMMALIA—ORDER VI.—UNGULATA. of the third and fourth metacarpal bones ; the latter feature distinguishing it from all other selenodout Artiodactyles, In colour, it is deep brown, with longitudinal white stripes on the flanks, spots of tlie same on the back, and a white chest and throat. Both in this animal and the true chevrotains the upper canines of the males form tusks projecting below the lip. In appearance they are very like minute deer, having moderate-sized ears and a short tail, but the head lias no bony or horny ap- pendages. The deer tribe is the first
. Natural history. Zoology. 140 MAMMALIA—ORDER VI.—UNGULATA. of the third and fourth metacarpal bones ; the latter feature distinguishing it from all other selenodout Artiodactyles, In colour, it is deep brown, with longitudinal white stripes on the flanks, spots of tlie same on the back, and a white chest and throat. Both in this animal and the true chevrotains the upper canines of the males form tusks projecting below the lip. In appearance they are very like minute deer, having moderate-sized ears and a short tail, but the head lias no bony or horny ap- pendages. The deer tribe is the first of four families Fig. 77.—A Cheveotain (Traguhis). constituting the true Ruminants, or Pecora, andincludingthe whole of theremainingmem- bers of the order. They derive their name of Ruminants from their power of chewing the cud—a feature which they possess in common with the camel tribe and chevrotains ; and they agree with the latter group in The Beer Tribe, lacking upper incisors, and in having the lower canine ap- —Family proximated to and resembling the lower incisors as well as Cervidce. an the union of the cuboid and navicular bones in the ankle- joint, and in the covering of the toes taking the form of horny hoofs. From the chevrotains they may be distinguished by the stomach being divided into four distinct compartments, by the anterior, or odontoid process of tlie second vertebra of the neck assuming the form of a spout, or half-cylinder, and by the fibula of the hind-leg being reduced to a mere nodule representing the lower extremity of the complete bone, and articu- lated to tlie tibia. Another point of distinction is that the lateral metacarpal and metatarsal bones of the feet are never complete, but are rejjresented only by their upper or lower ends. Very generally the skull is provided with a pair of laterally placed appendages, which may be either , covered with horn, and permanent, or branched, bony, and deciduous. When such appendages are
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