Fitch, Henry S., A Biogeographic Study of the Ordinoides Artenkreis of Garter Snakes. (Genus Thamnophis) University of California Publications in Zoology, Vol. 44, No. 1. University of California Press. Berkeley and Los Angeles, California. 1940.

Fitch, Henry S., A Systematic Account of the Alligator Lizards (Gerrhonotus) in the Western United States and Lower California. The American Midland Naturalist, Vol. 20, No. 2. The University Press, Notre Dame, Indiana. 1938.

Grinnell, Joseph, and Tracy I. Storer, Animal Life in the Yosemite. University of California Press. Berkeley, California. 1924.

Klauber, Laurence M., A Statistical Study of the Rattlesnakes and numerous related papers on reptiles. Occasional Papers and Transactions, San Diego Society of Natural History. San Diego, California. 1936-1943.

Schmidt, Karl P., and D. Dwight Davis, Field Book of Snakes of the United States and Canada. G. P. Putnam’s Sons. New York City, N. Y. 1941.

Slevin, Joseph R., The Amphibians of Western North America. Occasional papers of the California Academy of Sciences, No. 16. Published by the Academy. San Francisco, California. 1928.

Smith, Hobart M., Handbook of the Lizards of North America. The Comstock Publishing Co. Ithaca, New York. (In press)

Stejneger, L., and T. Barbour, A Check List of North American Amphibians and Reptiles. Harvard University Press. Cambridge, Mass. 1939.

Storer, Tracy I., A Synopsis of the Amphibia of California. University of California Publications in Zoology, Vol. 27. University of California Press. Berkeley, California. 1925.

Taylor, Edward H., A Taxonomic Study of the Cosmopolitan Scincoid Lizards of the Genus Eumeces. The Kansas University Science Bulletin, Vol 28. Published by the University. Lawrence, Kansas. 1935.

Van Denburgh, John, The Reptiles of Western North America. Occasional Papers California Academy of Sciences, No. 10, Vol. 2, San Francisco, California, 1922.

Wright, Albert Hazen, and Anna Allen Wright, Handbook of Frogs and Toads. The Comstock Publishing Co., Ithaca, New York. 1942.

*In order to keep the number of references to a minimum the above list contains only a few outstanding publications in each field. From these may be secured innumerable additional references or citations to other publications. Many of these standard works have extensive bibliographies.

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