I>K. ('. \V. .WDKKWS ON Tl IK 



Proboscidea. The eoronoid doe* not rise above the articulation, which is a transversely 

 elongated condyle. The angle is broad and rounded. 



The Dentition (tigs. 11-17). -There are three pairs of upper incisors ; the first are 

 comparatively small teeth in close contact in the middle line ; the second are large down- 

 wardly directed trihedral tusks which, as previously mentioned, probably grew from 

 persistent pulps ; the third pair of incisors and the canines were small teeth represented 



Skull of Mceritherivm h/onsi, Andrews. M. Eocene. Egypt. 



in all the available specimens by the alveoli only. The first premolar is wanting, the 

 second (Pm. 2) is triangular in outline, the crown consists of an outer row of cusps 

 and a posterointernal shelf-like projection (see fig. 15). The next tooth (Pm. 3) 

 consists of a pair of transversely arranged anterior cusps and a postero-internal one, 

 internal to which is a small shelf-like projection, The next premolar (Pm. 4) is 



