206 THE AMERICAN MIDLAND NATURALIST 



Museum of Science; Dr. Henri C. Seibert, of Ohio University; C. A. Barker, of the 

 Dayton PubUc Library Museum; Dr. Arthur B. Williams, of the Cleveland Museum 

 of Natural History; Dr. William A. Dreyer, of the University of Cincinnati; and Dr. 

 N. T. Mattox, formerly of Miami University, but now with the University of Puerto 

 Rico. 



Forest Buchanan, of Amsterdam, Dr. Ralph W. Dexter, of Kent State University, 

 Dr. H. R. Eggleston, of Marietta College, and Seymour Van Gundy, of Whitehouse, 

 have sent me a number of interesting specimens or useful data, or both. B. E. Leete, 

 of the Ohio Division of Forestry (at ChiUicothe), has furnished me with detailed maps 

 showing localities where he has encountered copperheads and timber rattlers. P. H. 

 William Bachmann, of Brooklyn, New York, has aided considerably by helping to 

 assemble records from the literature. 



A number of old friends, who had a part in the preparation of data for the orignal 

 edition of this report, have helped again, and it is particularly pleasant to acknowledge 

 their assistance. They are: Ralph Dury, Karl H. Maslowski, and Woodrow Good- 

 paster, ail of Cincinnati; Louis W. Campbell, of Toledo; O. E. Ehrhart, of Antwsrp; 

 William F. Rofkar, of Port Clinton; and E. L. Wickliff, Chief, Fish Management 

 Section, Ohio Department of Natural Resources, Columbus. 



For the loan of specimens from their respective institutions, for data on species or 

 groups with which they are particularly familiar, and for many other favors, I am 

 indebted to: Dr. M. Graham Netting and Dr. Grace L. Orton, of the Carnegie Muse- 

 um; Dr. Doris M. Cochran, of the United Slates National Museum; Dr. Norman E. 

 Hartweg and Dr. Charles F. Walker, of the Museum of Zoology, University of Michi- 

 gan; Dr. Archie F. Carr, Jr., and Dr. Arnold B. Grobman, of the University of 

 Florida; Dr. Howard K. Gloyd, of the Chicago Academy of Sciences; Charles M. 

 Bogert, of the American Museum of Natural History; Karl P. Schmidt and Clifford 

 H. Pope, of the Chicago Natural History Museum; E. B. S. Logier, of the Royal 

 Ontario Museum of Zoology; Dr. Orlando Park, of Northwestern University; Dr. 

 A. H. Wright and Miss Kay Kapp, of Cornell University; W. Leslie Burger, of the 

 University of Illinois; Carl F. Kauffeld, of the Staten Island Zoo; Dr. Sherman A. 

 Minton, Jr., of the Indiana University Medical Center; and Dr. Thomas FI. Langlois, 

 of the Stcne Laboratory. 



R. E. Lamboin, Asiistant State Geologist, and Miss Ethel S. Dean, Secretary, 

 respectively, of the Ohio Division of Geological Survey, have supplied helpful informa- 

 tion, and Mr. Lamborn has checked the physiographic boundaries on my new base map. 



The names of many of the persons listed above appear in the text of this revision, 

 some of them frequently. Information credited to them is chiefly from unpublished data, 

 but reference to their papers is made (by ihe use of dates keyed to the list starting on 

 [jage 265) in all cases wnere they have made contributions to the literatu e. 



The Messrs. Thomas, Schmidt, Netting, Wood, Duellman, Triplehorn, Johnson, and 

 Mattlin and Dr. Orton kindly undertook a reading of the manuscript, and to them I 

 extend my sincere thanks for their many suggestions and criticisms. 



My wife, Isabelle Hunt Conant, has executed much of the mechanical work of 

 readying this repoit for the press, and she has been my constant and devoted helper 

 during the tedious checking and double-checking which is an inevitable part of a work 

 of this sort. 



Sceloporus undulatus hyacinthiniis (Green) 

 Northern Fence Lizard 



(Page 22; maps 2 and 39; plate 3, fig. 1) 



Sweeping changes in the classification of the swifts of the undulatus group 

 have been proposed by Hobart M. Smith (1938). He recognizes seven 

 subspecies and shows that the name Sceloporus undulatus undulatus should 

 be restricted to a southern race that occurs from eastern Louisiana to southern 

 South CaroHna and southward to the Gulf and the northern half of Florida. 



