GASTEROPODA. 295 



occurred to me in very numerous localities throughout the Counties of 

 Pown and Antrim, in the County of Londonderry, and in the glen of the 

 Downs in Wicklow. By Dr. Harvey it was sparingly found several years 

 ago on the marine sand-hills at Miltown Malbay (County Clare) ; more 

 latterly by Mr. E. Waller, of Dublin, at Annahoe (County Tyrone), and 

 Finnoe (County Tipperary) ; and by the Rev. B. J. Clarke, near Portar- 

 lington (Queen's County). At Twizel House, Northumberland, and Bal- 

 lantrae, Ayrshire, I have collected this species. Draparnaud's description 

 and figure of H. i^ycpncea are rnost characteristic. 



H. alliaria, Miller, 

 Although not an abundant species anywhere, is generally distributed 

 over Ireland and her islands. From under stones at the sea-side to a 

 great elevation on the mountains, — as near the summit of Divis, the high- 

 est of the Belfast chain ; of Altavanagh, one of the mountains of Mourne, 

 in Down ; and of Ben Bulben, in Sligo, I have met with it ; — all situations, 

 from the exposed sea-shore and mountain-side to the umbrageous wood, 

 seem alike to it. A greenish-white variety, and the shell strong, is much 

 more common in Ireland than the yellow, which is ranked the ordinary 

 state ; from under the same stone I have procured specimens of both 

 colours. The animal is blackish. M. Michaud remarked, on acknow- 

 ledging Irish specimens from me, that they were H. nitida, Drap., junior. 



H. cellaria, Mull., 

 Is common, and distributed over Ireland. It has a predilection for wet 

 situations, and even from the bottom of drains, partially covered with 

 ■water, some of my largest sjiecimens were procured in the North ; the 

 very largest Irish specimens — 7^ lines in diameter — I have seen were 

 found in drains within the city of Dublin, by Mr. T. W. Warren, to whom 

 I am indebted for them. From the stomachs of the blackbird and starl- 

 ing I have taken perfect specimens of this shell. 



H. pura, Alder, 



Is distributed over Ireland ; it is usually found in moss, under stones, &c., 

 in sheltered situations, but on sea-side pastures likewise I have met with 

 it. The yellowish horn-coloured variety has in all parts of the country 

 occurred to me more commonly than the hyaline shell ; the closely set, 

 regular, and fine strige render recent shells of this species very beautiful. 

 M. Michaud, on acknowledging Irish specimens of H. pura, observed that 

 they were H. nitidula, Drap. 



H. nitidula, DrajD. 

 This species, most characteristically described by Mr. Alder (Newc. 

 Trans., vol. i. p. 38), is common, and generally distributed over Ireland. 

 In the North I have found it chiefiy among mosses in glens and sheltered 

 places. From two localities in this country I* have seen Helices of crys- 

 talline transparency, and in form intermediate between H. nitidula and 

 H. alliaria. 



H. radiatida, Alder. 

 This polished and well-marked species at every age — for when very 

 young the regular and strongly-marked stria; serve to distinguish it — 

 has, since 1832, occurred to me in the Comity of Londonderry, in the 

 neighbourhood of Dublin, and in very numerous localities tlu'oughout 

 DoAvn and Antrim. I have seen specimens which were collected at Anna- 



