REPORTS ON THE COLLECTIONS OBTAINED BY THE 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. AND IN 1937, 



SOME MONOGENETIC TREMATODES FROM 

 THE GALAPAGOS ISLANDS AND THE 

 NEIGHBORING PACIFIC 



By FRANK G. MESERVE 



