175 



LAND AND FRESH-WATER MOLLUSKS FOUND 



DURING A FEW WEEKS RESIDENCE IN CHELTENHAM 



AND THE VICINITY. 



BY W. WEBSTER^ ESQ. 



The Nomenclature is that of Gray's "Turton." — 



Neritina Fluviatilis. — Tolerably abundant, though generally much eroded, in 

 the streams near canal at Chalford, on the Cheltenham and Great Western 

 Railway. 



Paludina achatina. — Abundant in canal in the same locality. 



Bithinia tentaculata. — Very common in all the streams I had an opportunity 

 of trying. 



Valvata Piscinalis. — In canal at Chalford. 



Valvata cristata. — Scarce at the same place. 



Arion ater. — Common in damp situations; of many shades of colour — some 

 beautifully marked with orange round the edges of the foot. 



Arion hortensis. — Yery common in similar localities. 



Limax arboreus. — Yery abundant in beech woods, especially in early spring 

 and autumn, crawling on the smooth bark of the trees in moist weather, and 

 hibernating amongst the dead leaves. 



Limax raaximus. — A few specimens, but the season was too dry for them 

 to shew themselves in any numbers, 



Limax agrestis. — Everywhere very plentiful and very large. 



Yitrina pcUucida. — Common in its usual haunts. 



Helix aspersa. — Yery numerous and large. At Birdlip, six miles from 

 Cheltenham, I found one specimen of the white, or rather yellowish variety, 

 without any bands or marks whatever. 



Helix hortensis. — Yery numerous : several of the beautiful variety with 

 colourless or transparent bands. 



Helix nemoralis. — Yery fine and beautifully-banded varieties. Three speci- 

 mens, which I can only refer to this species, of a clear and beautiful milk 

 white; one with a roseate lip, one with a white lip like Hortemisj but with 

 the usual brown colour of nemoralis in the base of the body; the other, an 

 immature specimen, but with the brown mark beginning to make its appearance. 



Helix Pomatia. — Found of a large size in several woods in the neighbour- 

 hood — Lineovcr, Witcomb wood, and Cooper's Hill, near Birdlip, etc. 



Helix arbustorum. — Some pretty varieties. 



Helix Lapicida. — Many on the Limestone rocks, but more frequent still on 

 the stems of beech trees in nearly all the woods around. 



Helix pulchella. — A few specimens in damp situations. 



Helix pulchella, (v. costata?) — Is it not a distinct species? most abundant 

 at Minching Hampton, on the driest walls I ever met with, amongst Sedum 

 acre, but not so fine as I have found them near Liverpool, in damp places. 

 The two varieties here appear quite to have changed haunts. 



VOL. IV. 2 A 



