xxv] 



ARTIODACTYLA 



695 



hollow-horned cattle (Cavicornia) including Antelopes, Goats, Sheep 

 and Oxen. 



The TRAGULIDAE comprise some small animals found in Africa 

 and India, in which the foot is intermediate in structure between 

 that of the Pigs and that of the higher Ruminants : the outer toes 

 are complete although very slender, and the two inner imperfectly 

 joined with one another. The stomach and teeth however are like 

 those of a Ruminant, except that there is no third compartment 

 or psalterium. The African Chevrotain from the West Coast is 



FIG. 348. The African Water- Chevrotain, Dorcatherium aquaticum. 



larger than its Asiatic allies (Fig. 348). It frequents water-courses 

 and is said to have the habits of a Pig. 



The CAMELIDAE are familiar to all as far as their general appear- 

 ance is concerned. The humps of which the Arabian Camel, Camelus 

 dromedarius, has one, and the Bactrian or Asiatic Camel, C. bactri- 

 anus, two -are masses of fat, reserve material on which the animal 

 supports its life when deprived of food. In the foot the main 

 weight rests on a pad behind the hoofs ; these latter are separated 

 from each other, so that the animal has a broader support than a 

 Cow or a Deer. A Camel does not walk on its finger- and toe-nails, 



