x.J MAN. 157 



indistinctly marked out by a curved line above, and are 

 separated from each other by a wide expanse formed by 

 the smooth rounded upper part of the parietal and frontal 

 bones. The orbit is completely encircled by bone, the 

 outer margin being formed by a process from the malar 

 ascending to join the post-orbital process of the frontal ; and 

 it is, moreover, in great part separated from the temporal 

 fossa by an extension inwards of the ascending process of 

 the malar meeting the alisphenoid, although a communica- 

 tion is left between the two cavities below in the " spheno- 

 maxillary fissure." The axis of the orbital cavity is directed 

 more forwards than in the Dog. The face is altogether very 

 much shorter, broader, and flatter. 



In the inferior surface of the skull the palate is seen 

 to be much shorter and wider than that of the Dog, es- 

 pecially anteriorly, where its outline forms an almost semi- 

 circular curve. The maxillo-palatine suture is nearly 

 straight transversely, and so is the hinder border of the 

 palate, though produced backwards into an obtuse spine at 

 the middle line. The distance between the hinder border 

 of the palate and the foramen magnum is much shorter 

 relatively, the space between the pterygoids being particularly 

 short and wide. The true pterygoids and pterygoid plates 

 of the alisphenoid are widely separated posteriorly, leaving 

 a considerable fossa between them ; and the latter are larger 

 and project further backwards than the former. The under 

 surface of the tympano-periotic region is rough and irregular, 

 instead of being smooth and bullate, and the perforation 

 for the internal carotid artery is very conspicuous. There 

 is no alisphenoid canal, scarcely any postglenoid process, no 

 distinct glenoid venous foramen, a very small paroccipital, 

 and a very large mastoid process. By the inclination of the 

 occipital surface downwards, instead of backwards, an inferior 



