GASTEROPODA. -289 



distributed, is by no means common ; the following habitats may be enu- 

 merated. Glens in the Belfast mountains and Drumnasole, County An- 

 trim ; Florence Court, County Fermanagh, W. T. Altadawan, County 

 Tyrone, and Annagariff Wood, County Armagh, Edward Waller, Esq. ; 

 Kilruddery demesne. County Wicklow, T. W. Warren, Esq. ; Monivea, 

 County Galway, Rev. Benj. J. Clarke ; " near Limerick once," W. H. 

 Harvey, Esq. ; Youngrove near Youghal, Miss Ball ; Dunscombe Wood, 

 near Cork, Miss Hincks : in this locality the Rev. T. Hincks, Avho has sup- 

 plied me with very fine specimens, remarks that it is abundant. The 

 following notes are ])erhaps not irrelevantly introduced. Dec. 16, 1833. — 

 Although several times before in Colin Glen, near Belfast, in search of 

 Mollusca, I to-day for the first time, in consequence of its somewhat pe- 

 culiar haunts, obtained specimens of the H.fusca, and of them about two 

 dozen. The gx'ound was saturated with moisture, and they were all 

 briskly traversing the rich green leaves of the Litziila sylvatica, and one 

 or two other plants of similar foliage. The animal is much elongated, 

 and moves about with considerably greater rapidity than any Helix I have 

 seen ; its colour is uniform, but in different individuals varying from " wine- 

 yellow " to blackish-grey ; tentacula of the latter colour, the longer pair 

 in the adult animal 2k lines in length ; from their base a black line ex- 

 tends along the back for 3 lines. Dec. 10, 1837. — In Colin Glen to-day 

 I obtained upwards of thirty of these Helices. The ground was wet, but 

 there had been no rain in the preceding night, and consequently they 

 were not found (with a very few exceptions) on the Luzula, but were in- 

 stead lying sheltered and quiescent beneath masses of the fallen leaves of 

 forest trees contiguous to that plant. About three o'clock, when it began 

 to grow dusky, they commenced stirring about on the green leaves of 

 their favourite Luzula sylvatica, where in less than half an hour I pro- 

 cured a dozen of them. I have since occasionally seen this species on 

 the stems of trees at a considerable height from the ground and in very 

 dry weather. 



H.fuha,M\x\\., 



Although not common, is generally distributed over the island, and 

 found in woods among fallen leaves and timber, and under stones, &c., 

 in various situations, from the sea-side to the mountain. It seems rarely 

 to occur in quantity, but once, at Wolf hill near Belfast, I found thirty in- 

 dividuals congregated under one small stone. 



The H. Mortoni, agreeing both in animal and shell with Mr. Jeffi-eys's 

 description (Linn. Trans, vol. xvi. p. 332), is obtained along with H.fu'lva, 

 but has always seemed to me wanting in sufficient characters to render it 

 a distinct species. That the animal of H. Mortoni is lighter coloured than 

 that of H. fulva, is not of consequence, as the young of various Helices 

 are lighter coloured than the adults. 



H. aculeata, Mull. 

 Although the individuals of this Helix are generally but few in num- 

 ber where they do occur, the species is distributed over Ireland, and is 

 found in moss, on fallen timber, under stones, (tc. — out of "woods" I 

 have as frequently met with it as in them : high up the limestone moun- 

 tain of Ben Bulben (County Sligo) 1 have obtained it, but nowhere in 

 Ireland have seen so many specimens together as in the limestone debris 

 at Feltrim Hill near Dublin. From the marine sand-hills at Miltown 

 Malbay, on the western coast. Dr. W. II. Harvey has supplied me with a 



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