/IDcmotvs of tbe Museum of Comparative Z00I005 



AT HARVARD COLLEGE. 

 Vol. XXXVI. 



THE PLAGIOSTOMIA. 



(8HAEKS, SKATES, AND EAYS). 



BY 



SAMUEL GARMAN. 



WITH SEVENTY - SEVEN PLATES. 



PLATES. 



CAMBRIDGE, U.S.A.: 



printed for tbe /IMiseum. 



September, 1913. 



