394 ELEMENTARY ZOOLOGY 



the elephant, rhinoceros, hippopotamus, giraffe, camel, 

 zebra, etc., familiar in zoological gardens and menageries. 

 The order is a large one, its members being characterized 

 by the presence of from one to four hooves, which are the 

 enlarged and thickened claws of the toes. The Ungulates 

 are all herbivorous, and have their molar teeth fitted for 



FIG. 154. Male elk or wapiti, Cervus canadensis. (Photograph by E. 

 Willis from specimen mounted by Prof. L. L. Dyche, University of 

 Kansas.) 



grinding, the canines being absent or small. The order 

 is divided into the Perissodactyla or odd-toed forms, like 

 the horse, zebra, tapir, and rhinocerus, and the Artio- 

 dactyla or even-toed forms, like the oxen, sheep, deer, 



