12 



be associated with unpalatability or noxiousness with experience by the 

 lizard and that the association formed could also be transferred to 

 other not necessarily unpalatable insect species of similar colors. 



21. Bickham, 3. W. and J. A. MacMahon. 1972. Feeding habits of the 

 Western Whiptail Lizard, Cnemidophorus tigris . SOUTHWESTERN NAT- 

 URALIST 17(2): 207-208. 



An analysis of the stomach contents of a seasonally restricted, 

 small sample from a single locality south of Phoenix, Maricopa County, 

 Arizona, is presented. 



22. — , C. O. McKinney and M. F. Mathews. 1976. Karyotypes of the 

 parthenogenetic whiptail lizard Cnemidophorus laredoensis and its pre- 

 sumed parental species (Sauria, Teiidae). HERPETOLOGICA 32W: 395-399. 



Karyotypes of C, laredoensis , C. gularis and C. sexlineatus from 

 Texas are presented and compared, and the data are consistent with the 

 hypothesis that the latter two are indeed the parental species. 



23. Bissinger, B. E. and C. A. Simon. 1979. Comparison of tongue 

 extrusions in representatives of six families of lizards (Reptilia, 

 Lacertilia). JOURNAL OF HERPETOLOGY 13(2): 133-139. 



Tongue-flick values are given for Cnemidophorus exsanguis , _C. 

 tesselatus and C. tigris . The combined value for the Teiids is sig- 

 nificantly higher than any of the other lizard families studied. It 

 is suggested that this correlates with a lack of development of visual 

 communication in this family and importance of the tongue-Jacobson's 

 Organ system in feeding behavior and other types of communication. 



2it. Bogert, C. M. 19'f9. Thermoregulation in reptiles, a faaor in 

 evolution. EVOLUTION 3(3): 195-211. 



Cnemidophorus tessellatus (= _C. tigris ) collected in August and 

 September in Pinail County, Arizona, had cloacal body temperatures of 

 'tl.3+.2ifOC. at air and substrate temperatures of 33.6+.'f3°C. and ^1.3+ 

 1.07°C., respectively. This body temperature approximates that of a 

 rodent of similar bulk, and this lizard is as active and probably re- 

 mains seasonally as active as a mammal with similar hibernation needs. 



