GIG-ANTIC TORTOISE PEOM MADAGASCAE. 311 



EXPLANATION OF THE PLATES. 



PLATE XXXIX. 



Shell of male (Testudo grandidieri), ^ nat. size. Upper, lower, and side views. 



PLATE XL. 



Shell of female, -§- nat. size. Upper, lower, and side views. 



PLATE XLI. 



Skull of female, nat. size. Upper, lower, and side views, and upper view of 

 symphysial portion of mandible. 



