Contents 



CHAPTER PA3B 



VIII. The Soft-shelled Turtles; Genus '/"noHjA:. Fam- 

 ily Trionychidcc 

 Strongly Characteristic Chelonians, with a Soft, 



Leathery Shell 72 



PART II: THE CROCODILIANS 

 Order CROCODILIA 



IX. The Crocodilians; Order Crocodilia 



An Order Represented by Two Species in the United 

 Statts — The American Crocodile and the 

 Alligator 83 



PART III: THE LIZARDS 

 Order LACERTILIA 



X. The Lizards 



Classification of North American Lizards . . 95 



XI. The Geckos; Families Geckonidce and Euhlepharidce 

 A Large Group of Granular-scaled Lizards, Repre- 

 sented by Four Species in North America 97 

 XII. The American Chameleon; Genus Anolis 



The North American Representative of a Large, 

 New World Genus of Lizards that are Re- 

 markable in the Habit of Frequently Changing 

 their Colours . . .102 



XIII. The Iguanas 



Large Species that May be Recognised by their 



Fine Scalation and Spine-like Crest. . .106 



XIV. The Genera Sauronialus and Croiaphyius. 



Fine-scaled Representatives of the Igiianidcc . .111 

 XV. The Spotted Lizards; Zebra-tailed Lizards 

 Small and Strictly Terrestrial Species of the Genera 



Callisaurus, Uma, a.nd Holbrookia . . .116 

 XVI. The Swifts 



Two Genera — Ufa and Sceloporus — Small, Rough- 

 scaled Lizards 122 



xvi 



