﻿A MONOGRAPH 



OF 



THE EOCENE MOLLUSC A, 



OK 



DESCRIPTIONS OF SHELLS EROM THE OLDER TERTIARIES 



OE ENGLAND. 



BY 



FREDERIC E. EDWARDS. 



PART III, No. III. 



PROSOBRANCHIATA 



(continued). 



LONDON: 



PRINTED FOR THE PALiEONTOGRAPHICAL SOCIETY. 



1860. 



