HISTORY 



OF 



BRITISH MOLLUSCA, 



AND THEIR SHELLS. 



PROFESSOR EDWARD FORBES, F.R.S., 



OF king's college, LONDON ; _ , 



SYLVANUS HANLEY, B.A., F.L.s/ 



OP WADHAM COLLEGE, OXFORD. 



VOLUME II. 



INCLUDING THE REMAINING FAMILIES OF BIVALVES, THE 



PTEROPODA, AND THE GASTEROPODA AS FAR AS 



lANTHINID^. 



LONDON: 



JOHN VAN VOORST, PATERNOSTER ROW. 



-^ " M.DCCC.LIII. 



