264 



Annals of the Carnegie Museum. 



Size medium ; top of skull flattened ; occiput somewhat elevated ; 

 sagittal crest wanting ; nasals rather short, turned upward in front, 

 and possessing rugosities for a terminal horn. 



This specimen is much smaller than the types of Aphelops ceratorhinus 

 and A. montanus. The nasals are short, laterally compressed, and turned 

 upward toward the points, which are roughened, evidently for the accom- 

 modation of one terminal horn. They are very convex transversely 

 on top and correspondingly concave beneath. They are not coossified. 

 From the tips backward the borders trend upward for a short distance, 

 then downward and outward and then curve backward. They are 



Fig. 7. Lateral and superior views of fragment of skull of Teleoceras ? sp. ? \. 

 (No. 840.) 



thickened posteriorly yet the inner edges are sharp and there is a 

 beveled border facing inward and downward. The frontal region is 

 flattened, but somewhat concave antero-posteriorly as the supra- 

 occipital border is elevated. The cavities above and antero-internal 

 to the orbits are large. There is no sagittal crest. The supra-tem- 

 poral ridges are low and broad. A large concavity with one low 

 median ridge and two lateral ridges occupies the posterior upper por- 

 tion of the occiput. The lateral ridges end at the supero-external 

 portion of the occipital crest. 





