Freshwater Mollusca of Ireland. | 29 
and at the inland localities of La Bergerie, near Portarlington and 
Ballitore (county Kildare). H. virgata is one of the species which 
seems to follow no rule in the choice of its abode or in that of its 
associates, or rather whose absence from or presence in particular 
districts cannot be accounted for; it will be abundant on sea-banks 
at one place, and for a hundred miles again will not appear in similar 
localities. Some authors have remarked, from their own accurate 
observation in particular localities, that it is never found with H. eri- 
cetorum ; and Mr. W. H. Harvey, in supplying me with notes of four 
inland and marine stations in which he had observed it, remarked, 
** I have noticed that this species is never found mixed with H. eri- 
cetorum, nor is it generally in the same neighbourhood ;” yet not 
very far distant from one of those alluded to, both species are found 
in company”, and on the same plant. 
In the collection of T. W. Warren, Esq. of Dublin, is a very fine 
series from one locality, Portmarnock+, presenting every variety of 
colour and bands that I have seen described, from the hyaline and 
opake white to the darkest brown. JH. ericetorum has in similar va- 
riety been procured by this excellent and indefatigable collector at 
the same place, and H. Pisana, likewise differing, he possesses from 
its not far distant station :—one of the most beautiful of these three 
species is opake white with hyaline bands. At La Bergerie, near 
Portarlington, Mrs. Patterson of Belfast obtained a specimen of H. 
virgata, which both in form and colour bears a rude resemblance to 
the Helix elegans of Brown. 
18. Helix caperata, Mont. p. 430. t. 11. f. 11; Gray, Man. p. 162. 
pl. 4. f. 32. 
H. striata, Drap. p. 106. pl. 6. f. 18—21. 
_ In Brown’s *‘ Irish Testacea’”’ this species was noticed to be ‘‘ not 
uncommon at Naas on mud walls,” p. 526; and ‘ Bullock in Ire- 
land,” was given by Dr. Turton as a habitat. (Conch. Dict. p.51.) 
The H. caperata is in Ireland a very local species, is found in the 
southern half of the island, and appears to be plentiful where it does 
occur. From W. H. Harvey, Esq. I had specimens in 1833, which 
were collected by him at Glanmire near Cork; on “dry banks at 
Kilkee Castle near Ballitore, county Kildare,’ he had likewise pro- 
cured the species. At Kingstown near Dublin, contiguous to Dr. 
Turton’s station, it has been collected by Mr. Warren. At La Ber- 
gerie (Queen’s county) it was a few years ago obtained in abundance 
by Mrs. Patterson of Belfast. Among the specimens brought from 
this locality (and presenting gradations in colour from the ordinary 
state to that of being almost wholly of a deep reddish brown) was one 
shell entirely of a pale amber cclour, and transparent, the fine and 
* Montagu mentions their so occurring. 
+ In Mr. R. Ball’s cabinet, and collected by him here off a single plant 
of Beta maritima, are specimens of a pure white colour, others of a uniform 
dark chocolate brown, in addition to the more common state, white with 
brown bands and,the reverse. 
