PLATE II. 
Fig. 3. Fig. 4. 
1. DIDYMODON VAUCLUSIANUS : 2. Top View of Molars. 
(From the specimen, nat. size.) 
3 EQUUS MACROGNATHUS (one-fourth hnear). 
4. EQUUS DEVILLII (one-fourth linear). 
S. J. Mackie del. 
I 
