/A BRITISH CONCHOLOGY, 



OR AN ACCOUNT OF 



THE MOLLUSCA 



WHICH NOW INHABIT THE BEITISH ISLES AND THE 

 SURKOUNDING SEAS. 



^'^<^omi library 



VOLUME IV. 



MARINE SHELLS, 



IN CONTINUATION OF THE GASTROPODA AS FAR AS 

 THE BULLA FAMILY. 



By JOHN GWYN JEFFREYS, F.R.S., F.G.S., &c. 



LONDON: 

 JOHN VAN VOORST, PATERNOSTER ROW 



MDCCCLXTn. 



[The right of Translation is reserved.] 



