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. 



NEMATODE PARASITES 

 OF THE GALAPAGOS LAND IGUANA 



By ASHTON C. CUCKLER 



