Freshwater Mollusca of Ireland. 



117 



may be found in moss, on decaying leaves and wood, under stones, 

 &c., in dry as well as wet places, though the latter are its favourite 

 abode — in the north of the island specimens rarely attain one line in 

 length. 



Gen. 2. Acme, Hartmann. 

 1. A.fusca, Gray, Man. p. 223. pi. 6. f. 66. 



Auricula lineata, Drap. p. 57. pi. 3. f. 20^21. 

 Bulimus lineatus, Turt. Man. p. 83. f. 66. 

 Turbo fuscus, Boys and Walker. Mont. p. 330. 



Is rare in Ireland, but is widely distributed, being found over the 

 island. Mr. W. H. Harvey was the first to find and distinguish this 

 species as a native — he notes it as not uncommon on the sand-hills 

 in Miltown Malbay, where in 1826 he procured both the ordinary 

 form and the variety with the spires reversed. This shell has been 

 procured by Mr. Hyndman and myself in various localities in the 

 counties of Down and Antrim, but not more than three or four in- 

 dividuals have been obtained on any one occasion. I have more than 

 once found this shell, containing the living animal, under stones on 

 bare clayey banks, in which situations the only other mollusk met 

 with was Helix chrystallina. At Annahoe (county Tyrone), Mr. 

 Edw. Waller has obtained the A.fusca (both a. and b. Turton, p. 

 83.) ; as Mr. T. W.Warren has done in the neighbourhood of Dublin, 

 and the Rev. B. J. Clarke at La Bergerie, Queen's county. The 

 Rev. T. Hincks of Cork, favours me with two southern habitats— 

 BallinhassigGlen (county Cork) and near Mucruss, Killarney (county 

 Kerry). 



Fam. 5. LimnjeadjE, Jeffreys. 

 Gen. 1. Limneus, Drap. 



1. L. auricularius, Drap. p. 49. pi. 2. f. 28, 29, 32 ; Gray, Man. p. 

 232. pi. 9. f. 100 ; Turt, Man. p. 117. f. 100; Rossm. Icon. 

 1. 98. t. 2. f. 55. 

 Helix auricularia, Mont. p. 375. t. 16. f. 2. 



Through deference to those who have paid much more attention 

 to the subject than myself, I note this Limneus under the head of a 

 distinct species, although I am disposed to believe that it is only an 

 extreme form of L. pereger. The L. auricularius, as figured in Doth 

 editions of Turton's Manual, and by Draparnaud, is not very unfre- 

 quent in Ireland, but of the extremely expanded form represented 

 by Rossmassler is very rare, and from one or two still ponds only, 

 abounding in subaquatic plants of various species, have I seen it. 

 PfeifFer's figure (part 1. t. 4. f. 17, 18.) is somewhat intermediate 

 between those just mentioned, and corresponding to it I have pro- 

 cured specimens. All forms, from the ordinary L. pereger to the L. 

 auricularius, it seems to me may be closely traced blending into each 

 other — reference to the figures in many works will be found to pre- 

 sent various forms, though in all the aperture is greatly expanded. 

 Some specimens of L. auricularius, which I collected in Stow Pool, 



