94 (^n the Land mid Fresh-water Molltisca 



■ Z. ALLiARius, Miller. — Very common mider fallen timber in 

 woods. 



Z. GLABRA, Studer {Z. alliarms, Miller). — In similar spots 

 to the last species. Not rare. 



Z. NiTiDULus, Drap. — Everywhere in moss, damp herbage 

 and dead leaves. I also find it commonly in the loose soil 

 under leaves in woods. 



Z. puRus, Aid. — The like localities produce also this 

 species, but not so commonly as the last, and I never find the 

 shells so nearly white as some I have had sent me. 



Z. RADiATULus, Aid. — I find this species and other small 

 shells by sifting the leaves and rubbish from the damp places 

 of our woods, in a brisk current of wind. By repeating the 

 process again and again, I have at last but a small quantity 

 of rubbish to spread on white paper and search over, and I 

 find this species to be not nearly so rare as is generally supposed. 



Z. NiTmus, Miill. — Eare, but easily distinguished by the 

 dark colour of the snail when living. Found occasionally 

 under moss and damp herbage. 



Z. CRYSTALLiNus, MliU. — Frequcnt in wet moss and under 

 dead leaves in all suitable places. Found by searching and 

 winnowing as above described. 



Z. FULvus, Miill. — Very common under leaves in woods. 



Suitable damp spots seem equally productive of this genus 

 in this district, whether the soil be clay, gravel or sand. I 

 have not therefore stated the soil on which I have found 

 individual species. 



Helix aculeata, Miill. — Very rare. I did not thmk it 

 occurred until I adopted the winnowing process. 



H. aspersa, Miill. — Extremely abundant everywhere. I 

 cannot recognize any of Jeflreys' varieties, but in Trinity 

 Churchyard, opposite my house in the centre of this town, 

 we often find an albino aberration. 



H. nemoralis, Linn., and H. hortexsis, Miill. — Both very 

 common, and as they are usually considered to be simply 

 varieties I give them together, but I generally find where one 

 is abundant the other is scarce, and I very much question 

 whether they are not distinct species. 



