308 



Annals of the Carnegie Museum. 



antero-posterior direction. The crowns of 1^ and 1^ are low. The 

 anterior faces are very convex. There are two posterior flattened 

 surfaces separated by a rounded ridge. There are no cups, but the 



Fig. 4. Palatal View of Skull of Manteoceras uintensis Douglass. (| nat. size.) 



posterior portion forms a kind of ledge or keel. I-S. is higher and is 

 directed more downward. The posterior portion is flattened and there 

 is a low flat ledge behind the conical cusp. The canine has a moder- 

 ately high curved crown, on which there are antero-internal and postero- 



Fig. 5. Lateral View of Skull of M. uintensis Douglass. (| nat. size.) 



