IPROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Fourth Series 



Vol. I., pp. 405-430 April 16, 1912 



EXPEDITION OF THE CALIFORNIA ACADEMY 



OF SCIENCES TO THE GALAPAGOS 



ISLANDS, 1905-1906 



VI 

 THE GECKOS OF THE GALAPAGOS ARCHIPELAGO 



BY JOHN VAN DENBURGH 

 Curator of the Department of Herpetology 



CONTENTS 



Page 



Introduction 406 



Origin and Relationship of the Galapagos Geckos . 406 



Origin and History of the Galapagos Islands .... 407 



Systematic Account 410 



Key to the Species . . 410 



Gonatodes collaris 410 



Phyllodactylus tuberculoses . 412 



Phyllodactylus gilherti 413 



Phyllodactylus leei 416 



Phyllodactylus barringtonensis 418 



Phyllodactylus galapagoensis 420 



Phyllodactylus galapagoensis daphnensis ..... 425 



Phyllodactylus galapagoensis duncanensis 426 



Phyllodactylus bauri 426 



April 12, 1912 



