MONOGEAPH 
OF THE 
LAND & FRESHWATER 
MOLLUSC A 
OF THE 
BRITISH 
BY 
JOHN W. TAYLOR, F.L.S. 
MEMBRE HONORAIRE DE LA SOCIETE MALACOLOGIQUE DE FRANCE, 
EX-PRESIDENT OF THE CONCHOLOGICAL SOCIETY OF GREAT BRITAIN AND IRELAND, 
LATE EDITOR OF THE “JOURNAL OF CONCHOLOGY ; ” ETC. ; 
WITH THE ASSISTANCE OF 
W. DENISON ROEBUCK, F.L.S., THE LATE CHARLES ASHFORD, 
AND OTHER WELL-KNOWN CONCHOLOGISTS. 
STRUCTURAL AND GENERAL VOLUME. 
LEEDS : 
TAYLOR BROTHERS, PUBLISHERS. 
