TAB. XIIIB. 



Chelone crassicostata, half the nat. size. 



Fig. 



1. Outside view of the carapace, sj — sio, the seventh to the tenth neural plates 



inclusive : ph — ph, the second to the eighth costal plates of the left side ; 

 ph — ph, the third to the eighth, inclusive of the right side. 



2. The plastron dislocated and crushed in, with part of the skull showing the orbit o ; 



lis, the hyosternal ; ps, the hyposternal ; xs, the xiphisternal ; 51, the scapula ; 

 52, the coracoid. 



