130 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.4 



Peru 



San Juan Bay 



San Nicholas Bay 



Independencia Bay 



Chincha Islands 



Callao 



Hormigas de Afuera Islands 



Lobos de Afuera Islands 



Ecuador 



La Libertad 



Manta Bay 



Cape San Francisco 



Colombia 



Octavia Bay, north of Port Utria 



Panama 



Pinas Bay 

 Panama 



Costa Rica 



Playa Blancas 

 Parker Bay 

 Salinas Bay 

 Cocos Island 



Wafer Bay 



Nuez Island 

 Mexico 



Chacahua Bay 



Black Rock, south of Cape Corrientes 



Coronado Islands, just south of the United States-Mexico boundary. 



I am indebted to Dr. Josephine F. L. Hart and Miss Ursula Dale 

 for the drawings of the figures used. 



Once more, acknowledgments are due to Captain G. Allan Hancock, 

 his officers and ship's company, to all those who have been associated 

 with them in these various expeditions, and to Dr. Irene McCulloch of 

 the Department of Zoology, The University of Southern California, 

 for her attention to the material after it was safely landed. It has meant 

 many-sided co-operation that has been thoroughly appreciated. 



