UNGULATA 



45 



Order Ungulata. 



Toes more or less completely enclosed by horny hoofs or 

 with broad claws; no clavicles; molar teeth with ridged or tub*- 

 erculated grinding surfaces. 



Suborder Artiodactyla. 



Feet cleft; first toe wanting; second and fifth toes small, 

 rudimentary or absent. 



Superfamily Pecora. Ruminants. 



Stomach with four compartments; food regurgitated and 

 remasticated ; horns or antlers usually present ; upper canine teeth 

 usually absent, sometimes present and occasionally largely de- 

 , veloped. 



Tails of Deer. 

 1. Mule Deer. 2. Black-tailed Deer. 3. Virginia Deer 



4. Wapiti. 



