200 



PLATE III. 



Figure 11. Carapace of Ghrysemys marginata ; u, the neural epidermal plates; c, 

 the costals ; m., the marginals ; n., the nuchal. Natural size. 



Figure 12. Plastron of Ghrysemys margiriata; g., the gular plates; h., the humerals; 

 p., the pectorals ; a., the abdominals; /"., the femorals ; cm., the anals. 

 Natural size. 



