PLATE I. 



Fia. Page. 



1. EuJuta frattciim (Miiller). Hollesley. (British Museum) . . 9 



2. Helix lactea, Miiller. Walton-on-Naze. (British Museum) . .14 



3. Helix nemoralis, Linne. Barnwell. (Harraer Collection) . . 15 



4. Heli.r hortensis, Miiller. Butlej. (Ipswich Museum) . .16 



5. Helicodonta lens {Feri\s&a,c). Recent, Pylos, Glreece. (Tristram Coll.) . lo 



6. Hygromia incornata (Miiller). Recent. (British Museum) . . 11 



7. Ditto. Walton-on-Naze. (British Museum) . . .11 



8. Hi/groinlarjihiginosa (A. Schmidt). South wold. (British Museum) . 11 



9. Poiiiatias Harmeri, Kennard. Little Oakley. (Barmer Collection) . 26 



10. Jamiiiia eijlindracea (Da Costa). Recent. (Harmer Collection) . 20 



11. 6'ftr//c/m(w ovrt^aw, Sandberger. West Runton. (Norwich Museum) . 25 



12. C ar ij cMum minimu'ii(, MnWer. Recent. (Harmer Collection) . 24 



13. Succinea oblonga, Draparnaud. Southwold. (British Museum) . 22 



14. Limnsea Harmerl, Kennard and B. B. Woodward. Braraerton. 



(Norwich Museum) . . . . .29 



15. Vallonia excentrica, Sterki. Beccles. (Crowfoot Collection) . 12 



16. Lithogli/pJi.us fnscus (Pfeiffer). East Runton. (Norwich Museum) . 34 



17. Vivipara glacialis {S. Y.Wood). Belaugh. (Harmer Collection) 36 



18. Acroloxus lacustris (Linne). Recent. (Harmer Collection) . 27 



19. Pisidium casertanum (Poli). Bramerton. (Norwich Museum) . 44 



20. Pisidium supinum, A. Schmidt. Bramerton. (Norwich Museum) . 45 



21. Pisidium amnicum (Miiller). Bramerton. (Norwich Museum) . 42 



22. Pisidium Hensloivanum, Sheppard. Sutton. (British Museum) . 46 



23. Pisidium astartoides, Sandberger. Bramerton. (Norwich Museum) . 43 



