THE HERPETOLOGICAL COLLECTIONS MADE BY DR. HUGH M. SMITH IN SIAM FROM 1923 TO 1929 By Doris M. Cochran Assistant Curator, Division of Reptiles and Batrachians For a number of years the United States National Museum has been the fortunate recipient of rather extensive collections from southeastern Asia. Dr. W. L. Abbott began work in this region while its fauna was still relatively unkno^vn, the remarkable collections made by him in the islands of Malaysia as well as on the mainland itself still yielding valuable material for study purposes. Other collectors have augmented this material, and recognition of the possibilities of the zoologic study of this region has been manifested by various museums. Most of Doctor Abbott's reptiles and amphibians were taken in Trong, Peninsular Siam. Our series of specimens from the northern part of Siam was very limited until the time when Dr. Hugh M. Smith, formerly Chief of the Bureau of Fisheries at Washington, D. C, went to Bangkok to assume control of the development of fisheries resources for the kingdom of Siam. Since 1923 we have been receiving large and varied shipments of excellently preserved biological specimens from Doctor Smith, from which some new species have already been described. A complete list of the specimens which he has sent to the United States National Museum from 1923 through 1929 has been prepared, and it is hoped that new locality records will stimulate further work by various collectors in regions only partly explored at the present time. The letter S preceding a bracketed number indicates the collector's number given to the speci-men by Doctor Smith in the field. Original references are given to species described since 1912, the date of Boulenger's "Fauna of the Malay Peninsula." No. 2834.— Proceedings U.S. National Museum, Vol. 77, Art. 11. 94383—30 1 1