INTRODUCTION 



XV 



Abbreviation Institution 



UCM University of Colorado Museum, Boulder, Colorado 



UIMNH University of Illinois Museum of Natural History, 



Urbana, Illinois 



USNM U.S. National Museum, Washington, D.C. 



WCUUM West China Union University Museum, Chengtu 



WIM Wistar Institute Museum, Philadelphia, Pennsylvania 



ZML Zoological Museum of Leningrad 



ZS Zoologische Staatssammlung, Munich 



ZSP Zoological Society of Philadelphia, Pennsylvania 



The names of some collectors have the same initials. In order to dis- 

 tinguish Hobart M. Smith from Hugh M. Smith and for the sake of economy 

 of space, I identify them as H. M. and Hugh, respectively. 



Expressions of gratitude are owed to colleagues for their help in checking 

 data — especially Hobart M. Smith for the entire list, Norman Hartweg 

 and John W. Crenshaw for the turtles, Richard Highton for the salamanders, 

 and John M. Condit and Coleman J. Coin for the Hylidae. 



