120 Mr. W. Thompson’s Catalogue of the Land and 
Lough Neagh and other lakes in Ireland: it is found attached to 
stones at the edge of the water, and where the adjacent bottom is 
stony, with very little vegetation—under similar circumstances it 
has also occurred to me in the first-named locality. It is identical 
with the var. 3. of Mr. Jeffreys, who has favoured me with speci- 
mens from Battersea, near London. The small size, different colour, 
and freedom from all adventitious matter, I should be disposed to 
attribute to the colder water and less food in such localities, than in 
the ponds and ditches, in which the ordinary form prevails. 
6. Limneus truncatulus, Jeffreys. Gray, Man. p. 240. pl. 9. f. 108. 
L. minutus, Drap. p. 53. pl. 3. f. 5—7. 
L. fossarius, Turt. Man. p. 124. f. 108. 
Helix fossaria, Mont. p. 372. t. 16. f. 9. 
Is generally distributed over Ireland. It inhabits drains, ditches, 
&c., like the L. palustris ; but in moist spots, and about springs, at 
a considerable elevation in the northern mountains}, is likewise 
found, and is here always of a very small size. In July, 1833, when 
accompanied by Mr. Hyndman, I remarked many of this species 
alive, and adhering to stones which lay dry upon the shore of Lough 
Neagh, far above the summer level of its waters{—these were of 
uniform size, very small, and when containing the living animal, of 
a very dark reddish brown colour. Many varieties of the L. trun- 
catulus have occurred to me in Ireland; among them was one very 
much elongated, and another with regular longitudinal strie, the 
latter of which is well remarked by Dr. Turton, to be ‘‘ very elegant.” 
Man. p. 125. 
7. Limneus glaber, Gray, Man. p. 242. pl. 9. f. 106. 
Limneus elongatus, Drap. p. 53. pl. 3. f. 3,4; Turt. Man. p. 
122. f. 106. 
Helix octanfracta, Mont. p. 396. t. 11. f. 8. 
I have not seen any Irish specimens of this Limneus, which is thus 
noticed in the supplement to Mr. Jeffreys’s paper in the Linnean 
Transactions, vol. 16. p. 520: “Ireland, Rev. James Bulwer.” On 
inquiry of Mr. Bulwer, he stated that the shell so noticed was con- 
sidered by him but a variety of L. palustris. By a letter from Mr. 
Jeffreys, dated June 8, 1840, I learn that ‘‘ L. elongatus was men- 
tioned as Irish on the authority of the late Dr. Goodall, who stated 
that he had received specimens from Mr. Bulwer.” Mr. Jeffreys ° 
adds, ‘‘I have, however, two or three undoubted specimens among 
a collection of Irish shells, which I purchased about three months 
ago from Mr. John Humphreys of Cork—the tray which contained 
them was labelled ‘ Cork.’”” From Mr. Humphreys I learn that he 
+ Insuch places it is preyed on by the Lapwing (Vanellus cristatus), from 
whose stomach I have taken it. 
t Montagu has, on the contrary, remarked that when left dry the animal 
perishes. Test. Brit., p. 372. 
