REPTILIA. 



FIG. 198. 



39 1 



FIG. 198. Common Garter Snake (Eutcenia sirtalis). Photographed from life by 

 Dr. R. W. Shufeldt. 



FIG. 199. 



FIG. 199. Blotched King Snake (Lampropeltis rhombomaculatns). Photographed 

 from life by Dr. R. W. Shufeldt. 



Questions on the figure. What structural adaptations have the 

 snakes which tend to take the place of appendages? Illustrate your con- 

 clusions by citing examples. 



