A MONOGRAPH 



OF 



THE EOCENE MOLLUSCA 



oil. 



DESCRIPTIONS OF SHELLS 



FROM 



THE OLDER TERTIARIES OF ENGLAND. 



BY 



SEARLES V. WOOD, F.G.S. 



PART HI. 



BIVALVES. 



Pages 137- 1S2 ; Plates XXT— XXV. 



LONDON: 



PRINTED FOR THE PALiEONTOGRAPHICAL SOCIETY. 



187L 



