.1896.] 



SKULL OF ORTCTBBOPUS GAUDRYI. 



297 



the squamosal, which forms a prominent ridge external to it. ' The 

 tympanic ring is nearly circular, instead of being oval with its long 

 axis directed downward and forward. The postorbital processes of 

 the frontals are larger, and their hinder edges are sharp and thin. 

 I cannot detect any diiference in the profile of the upper surface of 

 the skulls of the recent and fossil forms, except such as may have 

 been caused by a slight crushing of the preorbital region ; and the 

 difference in the size and form of the lachrymals pointed out by 

 Forsyth Major cannot be taken as a character of any great im- 

 portance, for the lachrymal in recent skulls varies very considerably, 

 and in one specimen from Kassala it is extremely similar both in 

 size and shape to the fossil. The autorbital foramen opens above 

 the hinder lobe of m.', and this is also the case in the Kassala skull ; 

 in other specimens it is over m^. 



Skull of Orycteropus gaudryi, Forsyth Major. 

 , A, from aboTe ; B, from side. . About two-thirds natural size. 



The mandible idiffers from that of the recent forms only iu the 



