MAMMALS 



415 



Photograph by E. R. Sanborn, N. Y. Zool. Soc. 



FIG. 194. Persian wild ass; showing the dorsal stripe which appears to be a 

 primitive character in the Equidae. 



Photograph by E. R. Sanborn, N. Y. Zool. Soc. 

 FIG. 195. Grant's zebra (Equw burchelli granti). 



