12 



LLOYD S NATURAL HISTORY. 



upper carnassial tooth, or the large tooth on the right of the 

 upper figure in the illustration, consists of an external cutting 

 blade formed by three sharp lobes or cusps placed in the same 

 -line, and of a blunt tubercle on the inner side. The lower 

 carnassial (shown on the left of the lower figure in the illustra- 

 tion), on the other hand, consists simply of a cutting blade, 

 formed by two nearly equal -sized lobes, without any cusp on 

 their inner side, or any projecting heel on the hinder border. 

 In the skull the auditory bulla is uniformly smooth and 



Side View of Upper and Lower Teeth of the Lion. In the upper figure 

 the incisor teeth are turned to the left, and in the lower in the opposite 

 direction. 



bladder-like, without any external trace of a transverse con- 

 striction. 



In conformity with the contour of the head, the skull of the 

 typical Cats, as shown in the annexed woodcut, has a short 

 facial region ; while the zygomatic arches, in order to afford 

 space for the powerful muscles necessary to work the jaws, are 

 very widely expanded. In the figured specimen, as in the 

 skulls of the other large members of the family, the nasal bones, 

 forming the roof to the cavity of the nose, are very short and 

 wide; but in some of the smaller Cats they become narrow. 



