A HISTORY OF SUFFOLK 



B. PELECYPODA 



Dreissensia polymorpha (Pall.). Breydon 



Vnio pictorum (Linn.). Gt. Fakenham ; near 



Mildenhall ; near Oulton Broad 

 Anodonta cygnaea (Linn.). Local, but widely 



distributed 

 Sphaerium corneum (Linn.). Common 

 — lacuitre (Mull.). Gt. Fakenham; Wal- 



sham-le-Willows ; Mildenhall ; Barton 



Mere ; Sudbury ; Mendlesham 

 Piiidium amnicum (MqU.). Widely distributed 



Pisidium Henslowianum (Shepp.). Mildenhall; 

 Needham Market 



— suhtruncatum, Malm. Mildenhall 



— pulchellum, Jenyns. Mildenhall 



— obtusale, Pfr. Wyverstone ; Mendlesham ; 



Lowestoft 



— nltidum, Jenyns. Wetherden ; Mendles- 



sham ; Mildenhall 



— Gassiesianum, Dupuy. Santon Downham j 



Lowestoft 



NOTE 



Since the compilation of the above list a flourishing colony of Helisi pomatta has been 

 discovered in a large chalk pit at Rickinghall in the north of the county. 



100 



