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



tion and figures, is perhaps the Pupa inornata, Michaud, Comp. p. 

 63. pi. 15. f. 31, 32, apparently differing from it only in size — it is 

 described to be two lines in length : my largest specimen is l£ 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 pygmcea, Fer. Gray, Man. p. 201. pi. 7. f. 83 ; Turt. Man. 



p. 103. f. 83. 

 Pupa pygmsea, Drap. p. 60. pi. 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. 

 pygmcea 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. pi. 7. f. 84. 



V. sexdentata, Turt. Man. p. 103. f. 84. 

 This species, though rare, has a wide distribution in Ireland. In 

 the glen at Holy wood 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. pi. 7. f. 85 ; Turt. 



Man. p. 104. f. 85. 

 V. septemdentata, " Fer." Rossm. Icon. x. p. 28. tab. 49. f. 

 647. 



In numerous localities throughout the counties of Down and 

 Antrim I have since 1832 procured this well-marked species, which, 



