THE VERTEBRATES: MAMMALS 



251 



it, and swallows it again, but into another stomach-chamber. 

 From this it passes through the other two into the intestine. 



The deer family (Cervidae) comprises the familiar Vir- 

 ginia or red deer (Odocoileus americanits] of the Eastern 



FIG. 130. Male elk, or wapiti, Cervus canadensis. (Photograph of a 

 specimen mounted by L. L. Dyche.) 







and Central States and the white-tailed, black-tailed, and 

 mule deers of the West, the great-antlered elk or wapiti 

 (Cervus canadensis) (fig. 130), the great moose (Alee ameri- 

 cana), largest of the deer family, and the American reindeer 

 or caribou (Rangifer caribou). All species of the Cervidae 

 have solid horns, more or less branched, which are shed 



