.-xV 



THE HANCOCK PACIFIC EXPEDITIONS 



VOLUME 2 



NUMBER 4 



PARASITIC COPEPODS 



TAKEN DURING THE THIRD HANCOCK 



EXPEDITION TO THE GALAPAGOS ISLANDS 



(With One Plate) 



by 

 CHARLES BRANCH WILSON 



THE NEW ENGLAND MUSEUM OF NATURAL HISTORY 

 BOSTON, MASSACHUSETTS 



THE UNIVERSITY OF SOUTHERN CALIFORNIA PRESS 



LOS ANGELES, CALIFORNIA 



1937 



