TAB. V. 



C/ielone Camperi, nat. size. 



Fig. 



1 . External surface of two dermal plates, probably " marginal" ones. 



2. Transverse section of one of the above, and of a subjacent inverted plate. 



From the Upper Chalk of Kent. In the Museum of Thomas Charles, Esq., 



of Maidstone. 



