Proceedings of 

 the United States 

 National Museum 



SMITHSONIAN INSTITUTION • WASHINGTON, D.C. 



Volume 117 1965 Number 3519 



LAND SNAILS OF THE GENUS AMPHIDROMUS 



FROM THAILAND 



(MOLLUSC A: PULMONATA: CAMAENIDAE) 



By Alan Solem * 



Introduction 



Among the many zoological collections made in Thailand by the late 

 Hugh M. Smith in the 1920's and 1930's were 91 sets of Amphidromus 

 containing almost 500 specimens. This is by far the largest and most 

 varied collection known from Thailand and greatly increases our 

 knowledge of the distribution and variation of Thailand species. 

 Through the com'tesy of Dr. Harald A. Rehder, Division of Mollusks, 

 U.S. National Museum, it was possible to prepare this report on 

 Smith's collections. Unless otherwise indicated, all material discussed 

 below was collected by Hugh M. Smith and is deposited in the U.S. 

 National Museum (USNM). Notes are included on some additional 

 material in the Academy of Natural Sciences of Philadelphia (ANSP), 

 and a few duplicates from Smith's sets are deposited in Chicago 

 Natm-al History Museum (CNHM). 



' Curator, Lower Invertebrates, Chicago Natural History Museum, Chicago, 111. 



615 



