HISTORY 



OF 



BRITISH MOLLUSCA, 



AND THEIR SHELLS. 



/ 

 PROFESSOR EDWARD FORBES, F.R.S., 



OF king's college, LONDON ; 

 AND 



SYLVANUS HANLEY, B.A., F.L.S., 



OF WADHAM COLLEGE, OXFORD. 



VOLUME I. 



INCLUDING THE TUNICATA, AND THE FAMILIES OF LAMELLI- 

 BRANCHIATA AS FAR AS CYPRINIDiE. 



LONDON: 



JOHN VAN VOORST, PATERNOSTER ROW. 



M.DCCC.LIII. 



