A MONOGRAPH 



OF 



THE EOCENE MOLLUSCA, 



OK 



DESCRIPTIONS OF SHELLS EROM THE OLDER TERTIARIES 



OE ENGLAND. 



BY 



FREDERIC E. EDWARDS. 



PART III, No. II. 



PROSOBRANCHIATA 



(CONTINUED). 



LONDON: 



PRINTED FOR THE PALJUONTOGRAPHICAL SOCIETY. 

 1856. 



