PLATE II. 



Protylopiis pefersoni. Skull, from the right side. 



Protylopus petc?-soni. Upper molars and premolars of right side, crown view. 



Protylopiis peterso7ii. Lower molars and premolars of right side, crown view. 



Protylopiis petersoni. Left pes, front view. 



Protylopiis petersoni. Left manus, front view. M., magnum; U., unciform. 



Leptoreodon gracilis. Skull, from right side. P i, first premolar ; p 2, second 



premolar. 



Leptoreodon gracilis. Upper dentition of right side. 



Leptoreodon gracilis. Lower dentition of right side. C, canine; z j, lateral 



incisor ; p i, caniniform first premolar. 



Leptoreodon gracilis. Right manus. Sc, scaphoid; R., radius. 



Leptoreodon gracilis. Left pes, front view. 



(All figures of natural size.) 



