PLATE XXV 



Described 

 on Page 



Priacodon lulli Simpson. 36 



Fig. I. Right upper jaw with M^"^, external view. X 6 diam. Y.P.M. No. 



I 0359- 



Priacodon grandaevus Simpson. 37 



Fig. 2. Right upper jaw with M^'*, external view. X 5 diam. U.S.N.M. 

 No. 2698. Photograph from the United States National Museum. 



Amfhidon suferstes Simpson. 41 



Fig. 3. Right lower jaw with P4 and M1.4, internal view. X 8 diam. Type. 

 Y.P.M. No. 13638. 



Fig. 4. Same, detail showing P4 and M^.g, internal view. X 12 diam. 



Eurylambda aequicrurius (Simpson). 42 



Fig. 5. Right upper jaw with one molar, external view. X 7 diam. Type. 

 Y.P.M. No. 13639. 



220 



