OF BETl"WICKSHIRE AND NORTH DURHAM. 155 



8. SucciNE A AMPHIBIA. Common. A small variety, about throo-tentlis 

 of an inch long, is also common in BerwicksMro. It seems to be 

 a perfect shell ; and, in the places where it abounds, the larger 

 shell is not found. 



8. StJCCiNEA GRACILIS. Amongst hypna in spongy places, or in trick- 

 ling rills. Sea banks below Kedhexigh, and about the coves at 

 Cockburnspath. 



10. Helix aspersa. Common. 



1 1 . Helix arbustorum. Common near Berwick, and in the eastern 

 parts of the county. 



12. Helix nemoralis. Very common. The numerous variations in 

 colour to which this species is subject, may be classified thus : 



I. Pure yellow or cream-coloured. 



A. Yellow banded with brown. 

 a. Bands narrow. 



h. Bands broad, often confluent. 

 c. Bands mottled. 



II. Uniformly flesh-coloured. 



B. Flesh-coloured, banded with brown. 



a. Bands narrow. 



b. Bands broad, often confluent. 



13. Helix hortensis. Not uncommon. 



14. Helix trochulus. — H.fulva, Ttirt. In woods frequent. 



15. Helix scarburgensis. In the dean at Twizell House. I have a 



single small specimen found near Berwick. 



16. Helix aculeata. Pease Bridge dean. Pare. 



17. Helix fusca. In Dunglass and Pease Bridge deans abundant, 

 where it was shewn me by Mr J. Alder. 



18. Helix granulata, Alder. — H. Mspida., Mont. Not uncommon. 



19. Helix hispida, Jeffreys., in Lin. Trans, xvi. 388. Not uncommon 

 under stones in shaded places. 



20. Helix concinna. Alder. Frequent. 



21. Helix caperata. — K. striata, Brap. Common. 



22. Helix ericetorum. Roadside between the village of East Ord 

 and Longridge Lodge. Plentiful in several spots. 



23. Helix nitidula. Common. 



24. Helix cell aria. Not uncommon. 



25. Helix alliaria. Common. 



26. Helix luoida. The specimen of this shell in my collection was 

 found in the Hirsel plantations. I believe it to be rare in our 

 district. 



27. Helix radiatula, Alder. Frequent. 



28. Helix crystallina. In moss. Not rare. 



29. Helix pygm^ea. In a boggy X3iece of ground, on the banks 

 between Eedheugh and Fast-Castle, Mr Alder and Q-. J. 



30. Helix rottjndata. — II. radiafa, Mont. Common. 



