286 



Fig. 103. Shields of carapace and plastron. 



n. Nuchal, v. Vertebral, c. Costal, m. Marginal, sc. Supracaudal. 



g. Gular. ig. Intergular. h. Humeral, p. Pectoral, a. Abdominal. 



/. Femoral, an. Anal. 



B. Shell without epidermal shields. 



1. Limbs paddle-shaped, no claws 



2. Limbs broad and flat, two claws .... 



3. Limbs with distinct digits, three claws . 



Dermochelyidae p. 312. 

 Carettochelyidae p. 322. 

 Trionychidae p. 325. 



Fig. 104. a. A high-shelled form (Testudo emys Schleg. & Mull.). 

 b. A flat form (Trionyx cartilagineus (Bodd.)). 



