HYDROIDS OF THE 1932, 1933, 1935, and 1938 ALLAN 

 HANCOCK PACIFIC EXPEDITIONS 



C. McLean Eraser 



Two papers have already appeared on the hydroids collected by the 

 Allan Hancock Pacific Expeditions to the eastern tropical Pacific. The 

 first one dealt with the hydroids collected in 1934 only, mainly because 

 in that Expedition intensive hydroid collecting was a significant fea- 

 ture. That paper has been the basis for comparison in working on the 

 material from the other expeditions. The second paper dealt with the 

 collections made in 1936 and 1937, as these were largely confined to 

 the Gulf of California. In the Expeditions of 1932, 1933, 1935, and 

 1938, exploration was carried on in much the same regions as in 1934, 

 the main difference being that much of the coast of Peru was included 

 as well. The hydroids from these four expeditions can be treated to- 

 gether readily in one paper. Although the hydroid collecting was, in the 

 main, incidental, much interesting material was obtained. 



Although the general area visited was much the same each year, the 

 actual collecting stations differed veiy materially, and as that is so, it 

 may help, to add to the list of locations given in the first paper, to satisfy 

 the new distribution records. 



Locations 



Galapagos Islands 



Marchena Island 



North Bay 



Tower Island 



Darwin Bay 



Daphne Major Island ) ^r i i- n i r t i j 



-_. , ... ^ , , V Northwest of South Seymour Island 

 Daphne Mmor Island ) 



Indefatigable Island 



Conway Bay, on west coast 



Gordon Rocks, on east coast 

 Barrington Island 

 Osborn Island 



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