Freshwater Mollusca of Treland. 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. Acmr, Hartmann. 
1. A. fusca, Gray, Man. p. 223. pl. 6. f. 66. 
Auricula lineata, Drap. p.57. pl. 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— 
Ballinhassig Glen (county Cork) and near Mucruss, Killarney (county 
Kerry). 
Fam. 5. Limnamapz2, Jeffreys. 
Gen. 1. Limnevs, Drap. 
1. L. auricularius, Drap. p. 49. pl. 2. f. 28, 29, 32; Gray, Man. p. 
232. pl. 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 both 
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, 
