164 PROCEEDINGS OF SOCIETIES. 



localities near London, also in Kent, Sussex, and in Ireland, the distinction 

 seems to me sufficiently marked ; the animal is dark, and the foot less 

 fleshy than the last ; the shell is also dark, and when containing the ani- 

 mal alive, sometimes appears almost black. 

 Helix depilata. Rare and local. My few specimens answer to the description 

 in Gray, but Forbes and Hanley regard it as a var. of the last. 

 „ rufcscens. Common; the white var. is not unfrequent. 

 „ virgata. Very numerous in some localities, especially on the chalk. 

 „ caperata. Locally abundant. 

 „ ericetorum. Very abundant on the chalk. 

 Zonites rotundatus. Very common, as elsewhere. I have found the somewhat 

 rare transparent and colourless variety. 

 ,, pygmasus. Rare. 

 „ alliarius. Very frequent; occasionally colourless, or of a transparent 



greenish hue. 

 „ cellarius. Frequent, but not large. Sometimes colourless. 

 ,, nitidulus. Abundant. 

 ,, var. Helmidii. Rare. 



„ lucidus. One locality ; the banks of a slow stream. 

 „ crystallinus. Rather common. 

 „ purus. Less frequent. 

 Succinea putris. "Well distributed, but usually of small size. 

 Bulimus obscurus. Generally diffused, but not abundant. I have found a few 



beautiful specimens of the transparent, almost colourless variety. 

 Zua lubrica. Common. Albino var. ; rare. 

 Azeca tridens. One locality rather beyond my usual range, in moss, upon a chalky 



soil. One specimen of the albino variety. 

 Achatina acicula. Rare. 



Pupa umbilicata. This usually common little shell is scarce here ; at St. Leonard's 

 and Hastings I have found it in abundance ; and the specimens there and 

 elsewhere differed slightly from those few obtained in this district. Here 

 the peristome is not so white, nor the tooth so distinct, as is usual among 

 the full-grown shells. The very young bear no inconsiderable resemblance 

 to Zonites pygmasus, but, of course, the latter wants the ridge or plait 

 within the mouth, along the column. 

 „ marginata. One specimen found by Lady Augusta Pratt. 

 Vertigo edentula. Local, and not abundant. 



„ pygmsea. In several localities ; but rare. At Hastings it is not unfrequent, 



and there I have taken the var. alpestris. 

 ,, palustris. Rare ; one locality. The first specimens I obtained were from 

 the cases of caddis-worms. 

 Balca perversa. Rather numerous in one wood ; hitherto I have only found it on 



the beech. 

 Clausilia bidens. Well diffused, but not very abundant. Most frequent at the 

 roots of hedges, on the chalk. I have taken a few fine examples of the 

 greenish white variety. 

 „ Rolphii. This very local and, perhaps, rare shell, is found here, but it is 

 not common. I have obtained it near Hastings, one of the localities 

 indicated by Gray, and I possess several specimens from Ashhurst- 

 park, near Tunbridge Wells, collected by H. Field, jun., Esq. 

 „ nigricans. Common. One curious reversed specimen has been found 

 here. 

 Carychium minimum. Common. 

 Acme fusca. Very rare. 



Lymnasus. pereger. Frequent; varying much in form. I have one specimen 

 produced to the shape of a succinea, but with the lip spreading over 

 a profound umbilicus. 

 ,, Var. acutus. Occasional. 



„ Var. lacustris. Near the Darent. Also in one locality near St. 

 Leonard's. 



