LEPUS. 



395 



condyle of the lower jaw and is joined under the orbit to 

 the maxillae by a small jugal (or malar). This bony bar is 

 called the zygo7natic arch. 



The mandible or lower jaw is in one piece or ramus on 

 each side. It has a condyle for articulation with the skull, 

 an angle at its posterior end and a coronoid process produced 

 upwards in front of the condyle. 



The hyoid consists of a central piece and two pairs of 

 cornua, as in the frog. 



Fig. 282. — Posterior View 

 OF Atlas Vertebra of 

 Rabbit. {Ad nat. ) 



Fig. 283. — Lateral View of 

 Axis Vertebra of Rab- 

 bit. {Ad nat. ) 



Vertebrarterial Canal. 



Fig. 284. — Anterior View of a Cervical Vertebra 

 OF Rabbit. {Ad nat.) 



Cervical Rib. 



Vertebrarterial Canal. 



Lastly, in the middle ear is a chain of three ear-ossicles, 

 the malleus^ incus and stapes. The malleus is attached to 

 the inner surface of the tympanum and the stapes to the 

 fenestra ovalis of the inner ear. 



The vertebral column consists of cervical^ thoracic, lumbar^ 

 sacral and caudal vertebrae. 



There are seven cervicals, as in nearly all mammals. The 

 first is the atlas with two lateral wing-like cervical ribs, a 



