CONTEXTS 



Page 



Introduction 5 



The Field Work 5 



Acknowledgments 6 



Description of the Santa Alarta Region, by M. A. Carriker ]r y 



The Field Work of the Writer 9 



Previous Biological Investigations 15 



Geographical Situation 17 



Climate 19 



Vegetation of the Plains 21 



Foothill A'egetation 25 



Mountain Forest 25 



Paramo \'egetation 2^ 



Mountain Savannas 27 



General Character of the Faunas, ^lammalian and Avian 28 



Conclusion 29 



List of Localities referred to by Simons, Brown, Smith, Carriker 



and the University of Michigan Expeditions 30 



The Reptile-Amphibian Fauna and Its Geographical Relations 40 



Summary of the Known Fauna 40 



Nature of ■ the Material 41 



Vertical Distribution 41 



Environmental Factors in the A^ertical Distribution 44 



Relations of the Cloud Forest Fauna 46 



Distribution of the Desert and Dry Forest Fauna 48 



List of Species 49 



Caudata 49 



\ Salientia 49 



Sauria 57 



Serpentes 64 



Crocodilini f,g 



Testudinata 69 



