MERYCHIPPUS. 



115 



Fig. 88. Merychippus campestris Gidley. (4) Amer. Mus. 9090, crown view of the superior premolar-molar teeth of 

 the type, p' 2 -m 3 . (1) Skull of a referred specimen, Amer. Mus. 9459. (5) Crown view of the grinding teeth of the same 

 specimen, Amer. Mus. 9459, p 2 -m 3 . A male. Skull one-half natural size, teeth natural size. 



