8o8 FAUNA AND FLORA OF NORFOLK : NON-MARINE MOLLUSCA. 
E. Stoke Holy Cross, Surlingham Ferry, Horning 
Ferry, Ranworth Broad (S.S.P.), Thorpe, Old 
Lakenham, Swainsthorpe, Costessey (A.M.), 
Holt (T.P.). 
W. Babingley, North Wootton (T.P.), Weeting 
(A.M.). 
P. pulchellum, Jenyns. In ditches. Local. 
F. Stoke Holy Cross (S.S.P.), Colney, Flordon 
Common (A.M.). 
W. Gaywood (T.P.). 
P. pusillum (Gmelin). In ditches, marshes, etc. 
E. Hickling Broad (S.S.P.), Costessey, Old Laken- 
ham (A.M.), Thorpe (Bridgman). 
W. St. Germans, Babingley, North Wootton, 
Gaywood ((T.P.). 
P. obtusale, Pfeiffer. In ditches. Local. 
E. Colney, Swainsthorpe, Roydon Fen (A.M.). 
W. St. Germans (T.P.). 
P. nitidum, Jenyns. In marshy places. Local. 
E. Roydon Fen (A.M.). 
W. In a ditch near Thetford. Pond near Ring 
Mere (A.M.). 
P. gassiesianum, Dupuy. [=P. roseum , Jeff. —P. milium , 
Auctt]. Ditches. Local. 
E. Old Lakenham (A.M.), Heigham (Bridgman). 
W. West Winch, St. Germans (T.P.). 
