PROCEKDINGS 



OF THE 



CALIFORNIA" ACADEMY OF SCIENCES 



Fourth Series 



Vol. I, pp. 1-6. - December 20, 1907. 



Expedition of the California Academy of 



Sciences to the Galapagos Islands, 



19054906. 



I. 



Preliminary Descriptions of Four New Races of Gigantic 

 Land Tortoises from the Galapagos Islands. 



BY 



John Van Denburgh, 



Curator of the Department of Herpetology. 



SAN FRANCISCO 

 Published by the Academy 



1907 



