COAST RANGE CORRIDOR IN CALIFORNIA 185 



of the Coast Range corridor would appear to represent a fruitful 

 field of investigation, not only in herpetology but also other branches 

 of natural history. Evolution of the Coast Range corridor provides a 

 unique opportunity to study the influence of a small but efi'ective 

 land bridge on its associated biota. Unlike large, classic land bridges, 

 such as the Panamanian Isthmus, the Coast Range corridor is a 

 phenomenon of small scale lending itself to intensive investigation 

 from many directions by biologists and geologists alike. We may 

 confidently reaffirm and echo A. B. Howell's assertion of thirty 

 years ago that the fauna of the Pacific Coast is of unusual interest 

 and presents many fascinating problems. Californians have a land 

 bridge laboratory in their own back yard ! 



Acknowledgment 



Grateful acknowledgment is given to Miss Madeline Peabody for her 

 most valuable aid in drafting the illustrations and assisting with the 

 manuscript. 



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