TAB. XXII. 



Emys laevis, two thirds the nat. size. 



Fig. 



1. Upper view of carapace. 



2. Under view of plastron. 



3. Side view 



4. Front view, showing the curvature and depth of the specimen. 



The letters and figures signify the same parts as in the preceding figures ; hp, the 

 accessory pieces of the plastron. 



