PLATE VII. 



Figs. 24, 25. Rhinoceros pacikicus. A left iuferior molar tooth, from Bridger Creek, Oregon, belonging 

 to the Coiulou collection. 



Fig. 24. View of the outer part of the crown. Fig. 25. Triturating surface of the same speci- 

 men. 



Fig. 26. A canine tooth of au undetermined animal, probably of a large carnivore, but it may 

 be of an Elotherium-like pachyderm. The specimen belongs to the Condon collection of 

 Oregon fossils, and is labeled '■ Alkali Flats." 



Fig. 27. Elotherium ihperatok. a supposed incisor tooth, inner view. Specimen labeled " Bridge 

 Creek," and belonging to the Condon collection of Cregor fossils. 



Figs. 28, 29. Elotherium Mortoni? An incisor tooth, obtained by Mr. Peiroe, of Denver, twenty miles 

 southeast from Cheyenne City, Wyoming. 

 Fig. 2H. Inner view of the tooth. Fig. 29. Outer view of the same. 



Fig. 30. Canine of an undetermined carnivore. It resembles the iuferior canines of a bear^ 

 but is more comi^ressed. Specimen discovered by Professor Haydeu on White River, Da- 

 kota, in 1866. The crown is compressed conical, with the inner surface defiued in the 

 usual manner by acute borders. The faug exhibits a gibbous character. Length of crown 

 11 lines ; breaflth at base, 8 lines ; thickness, H lines. 



