StJBKlNGDOM VERTEBKATA. 



Fig. 100. 



Fig. 101. 



chisel-like incisors and cleft upper lip enable it to bite closer 

 than the Ox, and thus procure sustenance where that animal 



would starve. The 

 Groat, in defending 

 itself, rears upon its 

 hind legs, and comes 

 down head first upon 

 its opponent with 

 the weight of its 

 body; the Sheep runs 

 forward and butts 

 with the combined 

 force of its weight 



Ovis aries, Sheep. and i mpe t us . 



Antilocapridae. The Prong-horn Antelope is allied both 

 to the Antelope and the Goat. Like the former, its horns 

 contain an osseous core, but 

 unlike it they are deciduous, 

 and have a prong about mid- 

 way. The hair on the body 

 stands out straight, and, 

 being hollow like a bird's 

 feather, when bent will not 

 resume its form. 



Cervidae. The Deer 

 Family have solid, deciduous 

 horns, which are cast an- 

 nually, and at each renewal 

 grow larger and more branch- 

 ing. Two cartilaginous ^J 

 prominences first appear on 

 the forehead. These ossify 

 and form the horns, which 

 are still covered with velvety skin. Soon a ring of bone 



which the shepherds support with a board set on wheels. In Angola is a variety 

 called the goitred sheep from its having two lobes of fat beneath the throat, which, 

 like the hump of the Dromedary, serve it for food during the dry season. 



AntUocapra americana, Prong-horn. 



