RICHARD 1. JOHNSON 
A MONOGRAPH 
OF 
THE EOCENE MOLLUSCA, 
DESCRIPTIONS OF SHELLS FROM THE OLDER TERTIARIES 
OF ENGLAND. 
BY 
FREDERIC E. EDWARDS. 
PAR) DLE. No: Tt: 
PROSOBRANCHIATA 
(CONTINUED). 
oD 
P07 A} s a 
(ZA Ml — Ad 44 xxii — xxvi7 p. 
LONDON: 
PRINTED FOR THE PALZOONTOGRAPHICAL SOCIETY. 
1856. 
