XV111 



INTRODUCTION. 



maxillae by the junction of the premaxillae with the frontals. When the 

 skull is viewed in profile, the interorbital region is generally prominent, 

 with a marked concavity in front of it, though this may be absent. 



On the basis cranii there is to be noted a simple, smooth, and 

 rounded auditory bulla *. As a rule its size varies inversely with that 

 of the species, and thus it is exceedingly prominent in C. zerda f. It is 



Skull of the Wolf (after Flower). 



, alisphenoid canal, its hinder end ; ', ditto, its anterior end ; am, external auditory 

 meatus ; c, condyloid foramen ; car, carotid canal ; e, Eustachian earial ; y, glenoid 

 foramen ; I, foramen lacerum posterius ; m, mastoid process ; o, foramen ovale : 

 />, paroccipital process. 



always partially divided within by a very incomplete septum (fig. 8, s) 

 which springs from its anterior wall in exactly the same situation as does 



* See ' The Cat,' p. 57. f See below, description of the species. 



