THE

LAND AND FRESH-WATER SHELLS

OF

THE BRITISH ISLANDS.

LONDON:

Printed by SPOTTISWOODE & Co.

New-street Square.

JOHN EDWARD GRAY, PH.D., F.R.S.

F.L.S., F.R.G.S., V.P.Z.S. & ENT. SOC., ETC.

LONDON:

LONGMAN, BROWN, GREEN, LONGMANS, AND ROBERTS.