244 PROCEEDINGS OF THE NATIONAL MUSEUM vol. hg 



intermittently during June-September in 1956 and 1957, and during 

 June-August in 1958 and 1959. Additional data on vegetation were 

 recorded in August 1960; a few herpetological specimens were added 

 at this time and in July-August 1961. Altogether, 132 days and 

 nights were spent in the field in the area covered by figure 1 . 



A long history of random herpetological collecting in the Zuni 

 region has preceded these investigations. S. W. Woodhouse, a 

 member of the 1851 Sitgreaves Expedition, first obtained repre- 

 sentatives of the local herpetofauna. Two new species, Tapaya 

 oniatissima {—Phrynosoma douglassi hernandesi) and Pityophis affinis 

 {=Pituophis melanoleucus affinis) were described from among his 

 specimens. Personnel associated with the United States Army at 

 Fort Wingate, the U.S. Biological Survey, and various U.S. railway 

 and army explorations west of the one-hundredth meridian, especially 

 V. Bailey, E. A. Goldman, H. W. Henshaw, C. G. Newberry, and 

 R. W. Shufeldt, contributed specimens prior to 1910. This histori- 

 cally important material is housed in the U.S. National Museum. 

 E. T. Hooper and W. L. Chenoweth collected amphibians and reptiles 

 in 1939 and 1949-1951 respectively; their specimens and my own 

 have been deposited in the Museum of Zoology, University of Michigan, 

 and the Cornell University herpetological collection. 



Aspects of this study were discussed with several persons, especially 

 Bruce B. Collette, Norman Hartweg, Charles F. Walker, and Thomas 

 M. Uzzell, Jr. William J. Hamilton, Jr., at Cornell University and 

 Norman Hartweg and Charles F. Walker at the University of Michigan 

 greatly facilitated my research. William L. Chenoweth, Hillis L. 

 Howie, and Rossiter D. Olmstead were contributors to success in the 

 field. Edward C. Raney provided the opportunity for a trip to the 

 U.S. National Museum, where Doris M. Cochran aided my quest 

 for specimens and historical data. Stanwyn G. Shetler identified 

 certain plants. My wife, Nancy Y. Gehlbach, helped with vegeta- 

 tional analyses and typed the manuscript. A Sigma Xi grant-in-aid 

 for research made part of the 1958 field work possible. 



The following loaned specimens or provided specific information 

 about them: Curtis Allen, James D. Anderson, Ralph W. Axtell, 

 W. Frank Blair, J, Roger Bider, Charles M. Bogert, James E. Bohlke, 

 Bryce C. Brown, William G. Degenhardt, Floyd L. Downs, William 

 E. Duellman, James S. Findley, Joe Gorman, Michael Hays, Arthur 

 H. Harris, Norman Hartweg, Robert F. Inger, Clyde J. Jones, Laurence 

 M. Klauber, John M. Legler, Paul Licht, Edmond V. Malnate, 

 T. Paul MasHn, Samuel B. McDowell, Robert R. Miller, Jon A. 

 Peterson, Paul W. Parmalee, Jay M. Sheppard, Hobart M. Smith, 

 Wilmer W. Tanner, Robert W. Risebrough, Robert C. Stebbins, 

 David A. West, Ernest E. WilUams, Kenneth L. WiUiams, and 

 Richard G. Zweifel. 



