66 Lebour: Mollusca in Northumberland. 



Helix arbustorum (L.). Very common in woods under trees, 

 Corbridge. 



Helix cantiana (Montagu). Abundant - in Aydon Lane, Cor- 

 bridge, nearly all varieties merging into each other, from 

 nearly white to var. rubescens and cilbocincta combined. 

 I have noticed broken bits of this shell near stones, as if 

 birds had been eating them, a fact which Mr. L. E. Adams 

 has 'never observed' ('Collectors' Manual of British Land 

 and Freshwater Shells,' p. 75). This species is very local. 

 This locality is, or rather was, when the specimens were 

 first collected there, quite away from gardens, and there 

 seems to be no reason to regard the species as other than 

 native to the district. It has been recorded moreover from 

 Northumberland by both Alder and Adams. 



Helix rufescens (Pennant). Very common, Corbridge, garden; 

 several specimens slightly distorted. 

 Var. albocincta. Commoner than type. 

 Var. alba. Not common. 



Helix hispida (L. ). Common, in moss and roots and under 

 stones, Corbridge. 

 Var. alba. Not common. 



Helix caperaia (Montagu). Common, among roots of plants, 



garden, Corbridge. 

 Helix virgata (DaCosta). Abundant on banks by the side of 

 Hexham Road, near a stone wall. 

 Var. albida. Common. This species is very local at Cor- 

 bridge ; very common on links on coast with H. nemoralis. 

 Helix pulchella (Mi'iller). Common in garden, Corbridge, 

 under stones. 



Var. costata. Commoner than type. In old stone wall, 

 Dilston, Corbridge. 

 Buliminus obscurus (Drap.). Fairly common under trees, 

 Corbridge. 



Pupa cylindracea (DaCosta). Very common in stone walls 



and among - stones and roots, Corbridge. 

 Var. edentula. Common. 

 Pupa mu sco rum (L.). Not common, under stones, garden, 



Corbridge. 



Balea perversa (L.). Abundant in lime in wall in the garden, 

 Corbridge. Very fine specimens, measuring- on an average 



Naturalist, 



