British Conchology V4, Marine Shells: Or An Account Of The Mollusca Which Now Inhabit The British Isles And The Surrounding Seas is a book written by John Gwyn Jeffreys in 1867. The book is a comprehensive account of the mollusks that inhabit the British Isles and the surrounding seas. It is the fourth volume in the British Conchology series and focuses specifically on marine shells. The book is divided into two parts. The first part provides an overview...