Bulletin of the Museum of Comparative Zoology 
AT HARVARD COLLEGE, 
Vou. XXXI. No. 2. 
ON THE RELATIONS OF CERTAIN PLATES IN THE 
DINICHTHYIDS, 
WITH DESCRIPTIONS OF NEW SPECIES. 
Br ©. R. EASTMAN. 
Wırn Five PLATES. 
CAMBRIDGE, MASS., U. S.A.: 
PRINTED FOR THE MUSEUM. 
October, 1897. 
