FELIS 



459 



extremity of nasals the convexity of the dorsal profile is more 

 gradual and regular to slightly overhanging lambdal region ; 

 occiput obliquely truncate but not noticeably concave, the 

 condyles not visible when skull is viewed from above ; ventral 

 profile flat throughout. Brain-case broadly ovate or nearly 

 globular when viewed from above, the posterior outline distorted 

 in older specimens by the projecting lambdoid border, the 

 greatest width above zygomata slightly greater than depth at 



no. 96. 

 Felis silvestris. X -\. 



middle, and about equal to distance from posterior border of 

 parietal to deepest portion of postorbital constriction ; sagittal 

 crest low, appearing first on interparietal, the only region where 

 it becomes a true crest, the muscular ridges in front of 

 interparietal at first separate and forming a lyre-like figure, but 

 later uniting in continuation of the median crest. Floor of 

 brain-case flat, without noticeable surface features ; auditory 

 bullae large, highly inflated, longer than broad, formed mostly by 



