REPORTS ON THE COLLECTIOKS 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 1935, IN 1936, IN 1937, IN 1938, IN 1939, 



IN 1940, AND IN 1941. 



A REPORT ON THE ECHINI 

 OF THE WARMER EASTERN PACIFIC, 

 BASED ON THE COLLECTIONS OF THE 



VELERO III 



(Plates 35-71, Text Figures 1-3) 



By HUBERT LYMAN CLARK 



