CT.ASSIFICATION OF MAMMALS. 



441 



Fig. 2. — The skull of a carnivorous mammal (gray fox). 1, incisor teeth; 2, canine ; 

 3, premolars; 4, molars; 5, postorbital process of skull; 6, zygomatic arch; 7, au 

 dital bulla; 8, occipital condyle; ft, braincase; 10, rostrum; 11, mandible; 12, co- 

 ronoid process; 13, condyloid process; 14, angular process. 



Fig. 3. — Skull of a rodent (the woodchuck). 1, incisors; 3, premolars; 4, mo- 

 lars; 5, postorbital process; 6, zygomatic arch; 7, audital bulla; 8, occipi- 

 tal condyle; 9, braincase; 10, rostrum; 11, mandible; 12, coronoid process; 

 13, condyloid process; 14, angular process. 



