ZOOLOGICAL SERIES OF FIELD MUSEUM OF NATURAL HISTORY Volume 24 CHICAGO, JANUARY 30, 1939 No. 4 NOTES ON MEXICAN REPTILES AND AMPHIBIANS BY HOB ART M. SMITH 1 Knowing my interest in the herpetology of Mexico, Mr. Karl P. Schmidt requested me to set in order the accumulated reptiles and amphibians from Mexico in the collections of Field Museum. I have prepared a report embodying such notes of interest and such taxo-nomic changes as developed in the course of work on this collection. Besides taxonomic and distributional notes, a new generic name is proposed and three new forms of lizards and one new subspecies of snake are described. From Mexico, exclusive of Lower California, 1,931 specimens are available. These represent 236 species and subspecies, which include 9 salamanders, 28 frogs and toads, 102 lizards, 78 snakes, 2 croco-diles, and 16 turtles. In addition to specimens received in exchange, and other minor lots of material, the collection is derived in the main from the Field Museum expeditions of S. E. Meek and F. E. Lutz to central Mexico in 1901 (608 specimens), of S. E. Meek to southern and eastern Mexico in 1903 (577 specimens), of Edmund Heller and C. M. Barber in 1904 (290 specimens) ; and from the gift of collections made by E. Wyllys Andrews in Yucatan and Quintana Roo in 1934 and 1937 (247 specimens). The localities for the Meek collections were denned by Dr. Meek in his paper on the fresh-water fishes of Mexico (1904, pp. xxvm-xxx). Notes on the lizards of the genus Cnemidophorus are in the main reserved for a future paper. It is evident that Burt's arrangement of the Mexican forms of this genus (Burt, 1931) requires revision. I am indebted for information regarding specimens or for other assistance to Dr. F. Angel, of the Museum d'Histoire Naturelle, Paris; to Dr. William M. Clay, Mr. D. D wight Davis, Mrs. Helen T. Gaige, Dr. Norman Hartweg, Mr. William Stickel, Dr. Howard 1 Walter Rathbone Bacon Scholar, Smithsonian Institution. No. 438 15
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