32 Mr. W. Thompson's Catalogue of the Land and 



attention in 183*2, this Helix has occurred to me in very numerous 

 localities throughout the counties of Down and Antrim, in the 

 county of Londonderry, and in the glen of the Downs in Wicklow. 

 By Mr. Harvey it was sparingly found several years ago on the ma- 

 rine sand-hills at Miltown Malbay (county Clare) ; more latterly by 

 Mr. E. Waller of Dublin, at Annahoe (county Tyrone), and by the 

 Rev. B. J. Clarke, near Portarlington (Queen's county). At Twizel 

 House, Northumberland, and Ballantrae, Ayrshire, I have collected 

 this species. Draparnaud's description and figure of H. pygmcea 

 are most characteristic. 



23. Helix alliaria, Miller. Turt. Man. p. 56. f. 3.9. 

 Zonites alliarius, Gray, Man. p. 168. pi. 4. f. 39. 



Although not an abundant species anywhere, is generally distri- 

 buted 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 highest 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 acknowledging Irish specimens 

 from me, that they were H. nitida, Drap., junior. 



24. Helix cellaria, Mull. 



Zonites cellarius, Gray, Man. p 170. pi. 4. f. 40. 

 Helix nitida, Drap. p. 117. pi. 8. f. 23—25. 



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

 wet situations, and even from the bottom of drains, partially co- 

 vered with water, some of my largest specimens 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 sto- 

 machs of the Blackbird and Starling I have taken perfect specimens 

 of this shell. 



25. Helix pur a, Alder. Turt. Man. p. 59. 

 Zonites purus, Gray, Man. p. 171. pi. 4. f. 43. 



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 hya- 

 line shell : the closely set, regular, and fine striae render recent shells 

 of this species very beautiful. M. Michaud, on acknowledging Irish 

 specimens of H. pura, observed that they were H. nitidula, Drap. 



26. Helix nitidula, Drap.* 



Zonites nitidulus, Gray, Man. p. 172. pi. 12. f. 136. 

 * According to Mr. Alder. 



