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Family TrionychidcE. Soft-shelled Turtles. 



Genera and Species : 



Amyda mutica (Le 5.).* 

 Aspidonectes spinifer (Le S.).* 



Family Chelydridce. Snapping Turtles. 



Genus and Species : 



Chelydra serpentina (L.). 



Family Kinosternidce. Box Turtles. 



Genera and Species : 



Kinosternon pennsylvanicum {Bosc). 

 Aromochelys odoratus (Latr.). 



Family Emydidce. Pond Turtles. 



Genera and Species : 



Malaclemmys palustris (Gmel.). 

 Pseudemys rugosa (Shaw). 

 Chrysemys picta (Herm.). 

 Chelopus muhlenbergi (Schw). 

 Chelopus insculptus (Le C). 

 Chelopus guttatus (Schn.). 

 Emys meleagris {Shaw)* 

 Cistudo Carolina (L.). 



Class Reptilia. 



Reptiles are distinguished from the lower class of Ba- 

 trachia by being perfect at birth, there being no tadpole 

 stage as in the case of frogs and salamanders. When the little 

 turtle, often no larger than a small coin, or the little snake, 

 not bigger than a medium-sized earthworm, escapes from 

 the egg, it seeks food, it swims, crawls or darts about as 

 able as its progenitors. Life begins without parental as- 

 sistance. In this respect the reptile is more self-sufficient 



* Species of doubtful occurrence. 



