A UST OF LAND AND FRKSH-WATER SHELLS. 129 



Helix aculeata, Muller. — Very rare: one specimen only, which I found on 

 decayed wood in Mr. Cornish's grounds. 



Helix granulata, Grmj. — Very plentiful in hedge banks and among nettles. 

 Helix hispida, Muller. — Under stones in the shade and among nettles and 

 leaves in Mount Edgecombe Park and other localities: not very common. 

 Helix concinna, Gray. — Hedge banks, Magazine Lane: not common. 

 Helix depilata, Pfei. — Under nettles and in reach of the droppings from 

 the eaves of Ford House, Stoke. 



Helix rufescens, Penn. — Exceedingly common, the varieties, white, mottled, 

 grey, and rufous: found on hedge banks, under wood, among nettles, and in 

 gardens at the roots of Vinca and Iris. 



Helix virgata, Mont. — Four varieties, the banded, the deep buff, the opaque 

 with pallusid bands (this is very pretty,) and the white; the buff and banded 

 are very abundant, and frequently of a large size. 



Helix maritima, Drnp. — The Hoe and the heights at Whitsand Bay. 

 Helix caperata, Mont. — On dry banks, and occasionally beneath stones: common. 

 Zonites rotundatus. Gray. — Various habitats; most frequent beneath stones 

 and wood: very common, 



Zonites umbilicatus. Gray. — Under the top stones of walls on the heights 

 at Oreston, Catdown, and Bovasand: abundant. 



Zonites alliarius. Gray. — In moist situations, under stones, moss, and decaying 

 leaves: I notice the smell is more powerful from those obtained in very damp 

 habitats. 



Zonites cellarius. Gray. — At the base of a shady hedge bank near Ford, 

 and occasionally under stones. 



Zonites purus. Gray. — In Manodon Wood and other localities, on decaying 

 wood, among leaves, and on moist mossy banks: not common. 



Zonites nitidulus. Gray. — Common in hedge banks and under stones. 

 Zonites crystallinus, Gray. — Among damp moss and leaves: not common. 

 Succinea Pfeifferi, Rossm. — ^On the edge of a stream in Magazine Lane. 

 Bulimus obscurus, Gray. — Common in hedge banks, among dried leaves, in 

 the chinks of walls, and in the hollow trunks of trees: of frequent occurrence. 

 Bulimus acutus, Brug. — Very abundant on the embankments of the Citadel 

 and the heights in the locality of Whitsand Bay. 



Zua lubriea. Leach. — Of frequent occurrence beneath stones and among leaves. 



Pupa umbilicata, Drap. — Very common in the chinks of old walls and beneath 



the dry moss on the tops of walls; I have also met with it among dry leaves, 



and in the dry husk or shell of the beech-nut when scattered on the ground. 



Pupa Anglica, Gray. — At the roots of the grass and herbage on the under 



slopes of the Hoe. 



Pupa marginata, Drap. — At the roots of grass on the higher slopes of the 

 Hoe: not uncommon. 



Balaea perversa, Flem. — Under the bark of trees in Mr. Cornish's grounds, 

 under the top stones of walls, in company with Zonites umbilicatus, in the 



