452 



Mr. R. I. Pocock on some 



(B. primigenius) is the best-known form. In domesticated 

 cattle the skull is so variable in structure that it would 



A. Rhinarium of American bison {Bison bison) from the front, x §. 



B. The same from the side. 



C. The same of African buffalo {Syncerus caffer eequinoctialis) from the 



side. 



require the examination of a long series of specimens to 

 formulate a generic diagnosis based upon cranial characters. 



