A MONOGRAPH 
THE EOCENE MOLLUSCA, 
OR 
DESCRIPTIONS OF SHELLS FROM THE OLDER TERTIARIES 
OF ENGLAND. 
BY 
FREDERIC E. EDWARDS. 
PART ITI, No. III. 
PROSOBRANCHIATA 
(CONTINUED). 
as plies. 241-390 pied LE}. X% VU ge KKK ONE ) 
LONDON: 
PRINTED FOR THE PALZONTOGRAPHICAL SOCIETY. 
1860. 
