/iDemotrs ot tbe /iDuseum of Comparative XooIoqm 



AT llAliVARD COLLEGE. 

 Vol. XXXVI. 



THE PLAGIOSTOMIA. 



(SHARKS, SKATES, AND RAYS). 



BY 



SAMUEL GARMAN. 



WITH SEVENTY - SEVEN PLATES 



TEXT. 



CAMBRIDGE, U.S.A.: 



pvinteD for tbe /iDuseum. 



September, 1913. 



