MUSEUM OF COMPARATIVE ZOOLOGY. 25 



REPORT ON THE COELENTERATES. 



By Henry B. Bigelow. 



The important accessions to the collection received during the 

 past year are : — 



1. A series of Medusae and Siphonophorae collected by the 

 U. S. Coast Survey steamer Bache in the Western Atlantic, in 

 1914. 



2. A series of Medusae collected by the Canadian Arctic 

 Expedition, off the Arctic Coasts of Canada and Alaska, 1913— 

 1916, a gift of the Canadian Government. 



I was relieved from duty in the U. S. Shipping Board on 1 

 January, 1919. Since that time I have been occupied chiefly on 

 the reports on the Canadian Arctic Medusae, and on the Oceano- 

 graphic Cruises of the U. S. Fisheries Schooner Grampus, in 1916. 



During the spring, the operations of the International Ice Patrol 

 were resumed on the Grand Banks, and extensive oceanographic 

 observations made according to my directions. 



