REPORTS ON THE COLLECTIONS OBTAINED BY ALLAN HANCOCK PACIFIC EXPEDITIONS OF 

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

 PAGOS ISLANDS IN 1932, IN 1933, IN 1934, IN 1935, in 1936, in 1937, and in 1938. 



A REPORT ON SOME ARENACEOUS 

 FORAMINIFERA 



(Plates 1-12) 



By JOSEPH A. CUSHMAN and IRENE McCULLOCH 



