Erne 
114. Mr. W. Thompson’s Catalogue of the Land and 
tion and figures, is perhaps the Pupa inornata, Michaud, Comp. p. 
63. pl. 15. f. 31, 32, apparently differing from it only in size—it is 
described to be two lines in length: my largest specimen is 14 line, 
but this discrepancy is not greater than might be anticipated be- 
tween individuals obtained in the north of Ireland and at Lyons, 
where the P. inornata was discovered. I at first thought this var. 
might be Pupa muscorum, Drap. (Phil. Mag. 1834, p. 300.), but 
specimens of this shell from Montpellier, since sent me by M. Mi- 
chaud, prove that it is not so—these are identical with examples of 
Pupa cylindrica, which I have collected at Salisbury Craigs near 
Edinburgh, a locality in which this rare species was discovered by 
Mr. E. Forbes. 
2. Vertigo pygmea, Fer. Gray, Man. p. 201. pl. 7. f. 83; Turt. Man. 
p. 103. f. 83. 
Pupa pygmea, Drap. p. 60. pl. 3. f. 30, 31. 
This is the most widely distributed species of Vertigo over Ire- 
land, occurring throughout the country. It is generally found but 
sparingly where it does prevail, and is most easily procured under 
stones, both in dry and wet situations, from the sea-shore to a high 
elevation in the mountains. The usual number of teeth is four, of 
which one is central on the upper or body portion._--On a sea-bank, 
Belfast bay, I once met with a Vertigo resembling the ordinary V. 
pygmea in every respect, but with the addition of a tubercle, about 
the size of one of the teeth, placed outside the mouth and near the 
junction of the outer lip with the body volution. Animal dark lead 
colour, or rather blackish-gray above, disk blackish-gray anteriorly, 
becoming suddenly paler, so as to be nearly white at the opposite 
extremity. 
3. Vertigo substriata, Alder. Gray, Man. p. 202. pl. 7. f. 84. 
V. sexdentata, Turt. Man. p. 108. f. 84. 
This species, though rare, has a wide distribution in Ireland. In 
the glen at Holywood House (county Down), I obtained specimens 
in 1832, and subsequently in shell-sand from Portmarnock (county 
Dublin). Mr. W. H. Harvey gives as habitats “‘ Miltown Malbay, 
and near Limerick—rare at Ballitore (county Kildare).” In the 
neighbourhood of Ballantrae, Ayrshire, this Vertigo has occurred to 
me. Reference alone to Montagu’s specimens would seem to prove 
whether his Turbo sexdentata, p. 337, be this species, as his descrip- 
tion is partly applicable to this (in number of teeth), and partly to 
V. palustris (in being smooth)—the locality in which it was found 
would be more suitable to the latter: the figure in ‘ Testacea Bri- 
tannica,’ throws no light upon the subject. 
4. Vertigo palustris, Leach. Gray, Man. p. 204. pl. 7. f. 85; Turt. 
Man. p. 104. f. 85. 
V. septemdentata, “ Fer.” Rossm. Icon. x. p. 28, tab. 49. f. 
647. ‘i 
In numerous localities throughout the counties of Down and 
Antrim I have since 1832 procured this well-marked species, which, 
