1904. WEI.CH & S't^i.TOx.—Mollusca of Bushy Park, Dicbliyi • 1 23 



List of Species. 



Vltrina peilucida, Miiller.— Dead shells plentiful in woods, 



Hyalinia cellaria, Mullen— Common in suitable localities. 



H. Draparnaudi, Beck. — {Vitrca hicida, Drap.)— This species lives in 

 a pit in one greenhouse, and also among old building debris in waste 

 ground near the garden. As so many mistakes have occurred in 

 its determination in the past (see Adams, Irish Nat., vol. viii., p. 82), 

 we submitted specimens, through Mr. R. Standen, to the May 

 meeting of the Conchological Society, when the members unani- 

 mously confirmed our determination. The size, over 13 mm., 

 though none of the specimens were adult, and the deep cobalt-blue 

 colour, almost indigo in some cases, mark it out clearl}- from even 

 large //. cdlaria. 



H. alliaria, Miller. — A few at the marsh only. 



H. nitidula, Drap.— Very sparingly in the woods, not quite adult. 



H, pura, Alder.— A few of the brown var. nitidosa, at the marsh and in 

 damp moss in woods. We did not see the type at all. 



H. radiatula, Alder.— Some under stones at the marsh. 



H. crystallina, Miiller.— Common in damp mossy ground; found 

 with Cceciliandla among roots of a plant (^Aspidistra) in a pot, 6 inches 

 under the surface, in the green-house. 



H. fulva, Miiller. — A few in the woods and under stones in the marsh. 



H. nitlda, Miiller. — Five specimens under two stones just outside the 

 wall at the marsh, on the Dodder bank. A very local species, though 

 sometimes plentiful where it does live in Ireland. 



Arion ater, L— A few, variable in colour, in the marsh and under 

 logs. 



A, subfuscus, Drap. — Fairly common. 



A. hortcnsis, Fer. — Common almost everywhere. 



A. circuiYiscriptus, Johnst — Under stones and logs. 



A. intermcdius, Ncrmand.— At the marsh, rare. 



Litnax inaximus, L. —Half a dozen very dark lilac specimens under 

 logs in waste ground. Most unlike the northern Irish form, which 

 is usually the spotted V2^:.fertissaci, Moq. 



L. f lavus, L. — vSome large specimens with the last. Seems to be very 

 local in Ireland, especially in the north, but Dr. ScharfF found it 

 the "larder thief" of the Dublin cellars. 



AgTiolimax agrestis, L. — Common ; some specimens near the garden 

 were very dark purple (the var. liladna, Moq). 



A. laevis, Miiller. — Very dark in colour and plentiful along margins of 

 the shallow ponds in spring, and at the marsh in autumn. At the 

 former locality some specimens were noticed crawling on stems of 

 water-plants several inches below the surface of the water. 



Amalia sowerbyi, Fer. — Abundant under stones and logs every- 

 where ; one specimen was of a lead colour, not unlike A. gagates in 

 that respect. 



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