THE BAYLOR BULLETIN 



Hockley, Yoakum, Hill, Kaufman, Lampasas, Hale, Potter, 

 Sherman, Lubbock, Crosby, Kendall and Kent counties. 



In the literature cited in my bibliography, specimens are 

 on record from the following counties not above mentioned : 

 Anderson, Aransas, Atascosa, Bastrop, Baylor, Borden, 

 Bowie, Brazoria, Clay, Comanche, Cooke, Crane, Crockett, 

 Dallas, Denton, De Witt, Donley, Duval, Edwards, Erath, 

 Fayette, Galveston, Gillespie, Guadalupe, Hardeman, Har- 

 din, Harrison, Haskell, Hemphill, Hidalgo, Hood, Houston, 

 Howard, Kerr, Lavaca, Lamb, La Salle, Lipscomb, Marion, 

 Mason, Maverick, Menard, Mitchell, Oldham, Reeves, Rob- 

 erts, Shelby, Starr, Sutton, Swisher, Tom Green, Tyler, 

 Upshur, Uvalde, Val Verde, Walker, Ward, Washington, 

 Webb, Wheeler, Wichita, Williamson and Wood. ' 



When one takes into consideration the fact that during 

 the past twenty years I have collected more than 80 species 

 and subspecies in my own county, he can readily understand 

 that this is due entirely to the reason that I have collected 

 very closely, searching every possible habitat for species 

 that I had not previously found. On several occasions I 

 have collected specimens of reptiles, not found, so far as I 

 had been able to discover, within my own county, only a 

 mile or two over the line in the next one. The great ma- 

 jority of cold-blooded animals have special habitats, due to 

 abundance or lack of moisture, to the peculiar physical con- 

 formation of the region, to the presence of lagoons, marshes 

 and streams ; in some cases due to a food supply governed by 

 the presence of certain insects and the plants on which they 

 feed, and on many other conditions that might be here 

 mentioned. 



The study of the habitat associations of Texas reptiles is 

 a wonderfully interesting subject to the herpetologist, but 

 cannot be discussed in a paper necessarily as limited to 

 space as is the present one. The main object of the cata- 

 logue is to bring together in a concise form as complete a 

 list of these animals as our present knowledge of their oc- 

 currence and distribution in the State will warrant. No at- 

 tempt is made to describe the different species — the great 

 trouble with the majority of State catalogues is that their 



