REPORTS ON THE COLLECTIONS OBTAINED BY ALLAN HANCOCK PACIFIC EXPEDITIONS OF 

 VELERO III OFF THE COAST OF MEXICO, CENTRAL AMERICA, SOUTH AMERICA, AND 

 GALAPAGOS ISLANDS IN 1932, IN 1933, IN 1934, IN 1935, IN 1936, IN 1937, IN 1938, IN 



1939, IN 1940, AND IN 1941. 



HYDROIDS OF THE ALLAN HANCOCK 

 PACIFIC EXPEDITIONS SINCE MARCH, 1938 



(Plates 22-42.) 



By C. McLEAN FRASER 



