EXPLANATION OF PLATE XXV. 



Uintatherium robustum. All the specimens discovered by Dra. Corson and Carter at Dry 

 Creek Canon. Natural size, except Figs. 8 and 11, which are one-half size. 



Figs. 1-5. A supposed ripper canine tooth. Discovered by Dr. Corson in company with a fragment of the 

 same tooth of the other side, the specimen represented in Figs. 13, 14, and the molar of 

 Palfeosyops represented in Fig. 13, Plate' XXIII. Originally referred to a supposed car- 

 nivore, with the name of Uintamastix atrox. 



Fig. 1. Outer view of the right canine. The restored outline of the lance -head-like point 

 is, perhaps, a little exaggerated. 



Fig. 2. Inner view of the point of the same specimen. 



Fig. 3. Front view. 



Fig. 4. Outline of a transverse section of the lance-head-like point. 



Fig. 5. Outlino of a section near the base of the specimen. 



Figs. 6-12. Specimens found together, with portions of the skull and other boues of the skeleton, ten 

 miles distant from the former. Discovered by Drs. Carter and Corson. 



Fig. 6. Inner view of the last upper molar of the right side. 



Fig. 7. View of the triturating surface of the same tooth. 



Fig. 8. Outer view of the same tooth inserted in a jaw-fragment, half the natural size. 



Fig. 9. Inner view of the last lower molar of the right side. 



Fig. 10. View of the triturating surface of the same tooth. 



Fig. 11. Outer view of the lower-jaw fragment, containing the same tooth, one-half tho 

 natural size. 



Fig. 12. Triturating surface, much worn, of the first upper molar, of tho right side. 



Figs. 13, 14. A supposed upper premolar of the same animal. Discovered by Dr. Corson in company with 

 the large canine tooth of Figs. 1-5. 

 Fig. 13. Inner view of the tooth. 

 Fig. 14. Triturating surface. 



