436 



MANUAL OF ZOOLOGY 



SECT. 



In the Chelonia (Fig. 247) the body is short and broad and 

 is enclosed in a hard " shell " consisting of a dorsal part or 

 carapace and a ventral part or plastron. These are firmly 



united, apertures being left between them for the head and 

 neck, the tail and the limbs. The neck is long and mobile ; 

 the tail short. The limbs are fully developed though short. 



