18 Mr. W. Thompson’s Catalogue of the Land and 
2. V. cristata, Mull., Gray, Man. p. 98. pl. 10. f. 115. 
Helix cristata, Mont. p. 460. vign. 1. f. 7, 8. 
Valvata spirorbis, Drap. p. 41. pl. 1. f. 32, 33. 
This handsomely formed species is distributed over the island. The 
Valv. Planorbis, Drap., noticed as Irish in Lond. and Edin. Phil. aE: 
1834, p. 300, must be erased from the list. | 
Order II. PNEUMONOBRANCHIATA. 
Fam. 1. ARIONIDA. 
Arion, Ferus. 
1. A. ater, Gray, Man. p. 104. 
Limax ater, Linn. 
Arion empiricorum, Fer. 
This species, the common “‘ black snail,”’ is abundant throughout 
Ireland. Its varieties, A. rufus (Lima rufus, Linn.), and A. margi- 
natus, as remarked by Mr. Templeton, likewise occur, Under a co- 
loured drawing of the latter made by this naturalist is the remark, 
**common in fields about Cremorne, county Monaghan, August 4, 
1805.” The yellow variety is likewise found in the north and south 
(Miss M. Ball). Under precisely the same circumstances of food 
and “ habitation” I have met with the varieties above-mentioned. 
See Gray, Man. p. 105. 
2. A. hortensis, Fer. Gray, Man. p. 107. 
“Common at Cranmore (Belfast),’’ Templeton’s MS. Coloured 
drawings of the variety of this or the preceding species, named A. cir- 
cumscriptus by Dr. Johnston, were made by Mr. Templeton in 1808. 
To this I can only add, that the species is common throughout the 
north. ; 
Fam. 2. Hevicipa. 
1. Limax, Fer. 
1. L. maximus, Linn. Gray, Man. p. 112. 
L. cinereus, Drap. 
This, the common ‘‘ large grey slug,” is equally abundant in 
north and south. In the stomach of the Song Thrush (Turdus mu- 
sicus), I have frequently found the shell of this species, the Limacella 
parma of Turton’s Manual, after the animal, of which it had been 
part, had been entirely dissolved. I have procured similarly the shells 
of the smaller Limaces from the Blackbird (Turdus Merula). Either 
this or the next species is accused by Miss M. Ball of making its 
way into pantries and eating holes in bread. 
2. L. flavus, Linn. Gray, Man. p. 114. 
L. variegatus, Fer. Hist. de Moll. p. 71. pl. 5. f. 1—6. 
In Mr. R. Ball’s collection are a number of these, which were 
brought by him from Youghal. In the north it has occurred to 
myself. 
