By E. W. Swanton. 67 



wet and swampy situations. It is very plentifully found after a 

 flood on the banks of the Eiver Avon, in North Wiltshire, about 

 Lackham" {Test. Brit, p. 441, as H. pahtdosa). Stourton, Mere, 

 and Edington (E. W. S.) ; brickearth at Fisherton (Blackmore) ; 

 Devizes (Heginbothom) ; between Trowbridge and Studley, Salis- 

 bury, Devizes (Vize) . 



Val Ionia costata (Miiller). — In all probability as widely dis- 

 tributed as the preceding species. Edington and Avebury, also 

 near Mere (E. W. S.) ; Hilperton Marsh (Vize) ; Swindon (Cock- 

 erell) ; Devizes (Miss Cunnington and Heginbothom). 



Vallonia excetltrica (Sterki). — Probably hitherto confused 

 with V. pulchella. I found three specimens at Edington, in the 

 valley of the White Horse. 



Helicigona lapicida (Linne). Local. DaCosta recorded it in 

 1778 as Cochlea acuta "from Wiltshire in the moss on the bodies 

 of large trees, and in woods." Devizes, south of Kennet and Avon 

 Canal (Heginbothom) ; Marlborough, moderately common (Brome- 

 head) ; Corsham, Salisbury (Vize) ; Koundway Hill, Devizes (Miss 

 Cunnington) ; Edington (E. W. S.). 



Helicigona arbustorum (Linne.) — Widely distributed. Da- 

 Costa recorded it from Wiltshire under the name of Cochlea uni- 

 fasciata. Montagu wrote : " It delights in wet and shady places, 

 particularly amongst willows and alders where the soil is black 

 and boggy. In such places in the neighbourhood of Lackham, in 

 Wiltshire, contiguous to the Eiver Avon, it is the most common 

 shell, but we have rarely found it elsewhere " (Test. Brit., pp. 414, 

 415). A lightish form of the type occurs in nettle beds on the 

 banks of the Avon at Salisbury. I have noticed in other places 

 its fondness for nettles. A few specimens in the drift at Milford 

 Hill and in the brickearth at Fisherton (Blackmore) ; Devizes 

 Miss Cunnington and others ; Idmiston (W. L. W. Eyre) ; Marl- 

 borough, moderately common (Bromehead) ; Hilperton, Bradford- 

 on-Avon, Alderbury, Salisbury (Vize). 



var. cincta (Taylor). — Banks of the Avon at Salisbury 

 (E. W. S.) ; Devizes (Miss Cunnington and Heginbothom). 



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