258 HELIX ASPERSA. 
. CONTINENTAL DISTRIBUTION. 
France—Sub-var. ebwrnea in the quarries of the department of the Oise. This 
form is only found in hilly districts and on caleareous soils; it adheres to the rocks 
exposed to the sun (Bandon, 1.c.). 
Italy—Var. solidissima, Rocea Angitola, Calabria (Paulueci, |.c.). 
Var. tenuior Shuttl., Moll. Corse, 1843, p. 17. 
Helix aspersa var. tenuis Jeffreys, Brit. Conch., 1862, p. 182. 
Helix aspersa var. D translucens Gassies, Moll. Aquit., 1867, p 122. 
SHELL half the usual size, uniformly rufous in colour; very thin and transparent. 
The sub-var. tenuis is described as dwarfed, extremely thin, and nearly trans- 
parent ; bands reddish-brown. 
ENGLAND. 
Channel Isles—In Guernsey, it may be found in almost any sheltered nook and 
crevice on the south and south-west coast, J. R. le B. Tomlin. At Moulin Huet 
Bay, fine, very thin, and beautifully marked shells are abundant in the open, 
amongst furze, Rev. Dr. MeMurtrie. Cobo Bay, Rev. W. C. Hey. 
In Jersey, it was found plentifully in 1874 at St. Aubyn’s Bay by Mr. H. Bendall. 
In Herm, very delicate shells are found plentifully near the landing-place, where 
there is no drifted shell-sand. 
In Sark, it is very common at La Coupée and elsewhere on the island, but some- 
what variable in tenuity. 
Cornwall W.—Sub-var. fenwis, sandhills near the coast; the specimens are 
remarkably thin, nearly transparent, and banded, E. D. Marquand. Whitesand 
Bay, J. E. Cooper. 
Somerset N.—Rare, Bratton St. Maur, E. W. Swanton. 
Dorset—Weymouth, Aug. 1867 ! one specimen weighing only three grains, 
Charles Ashford. 
Isle of Wight—A lheautifully delicate specimen at Ventnor, A. Loydell. 
Sussex W.—Worthing, A. Loydell. 
Worcester— Enumerated for Malvern by Griffiths in 1870. 
Warwick— Kenilworth, J. Madison. 
Norfolk— Yelverton, A. Mayfield. 
York N.E.—Sub-var. tenwis, York, common (R. M. Christy, Zool., 1881, p. 246). 
Westmorland and Lake Lancs.—Lower Lindale road, Grange, H. Beeston. 
Cumberland—Harraby, Miss Jessie Hele. 
IRELAND. 
Antrim—Rathlin Island, Lionel E. Adams. 
Galway W.—A colony of very large specimens embracing, amongst others, 
formule 10005 and 10040, in a field near Roundstone, A. W. Stelfox. 
CONTINENTAL DISTRIBUTION. 
France—Dr. Baudon records an exceedingly thin form, of a rufous colour, with 
reddish bands [sub-var. tenis] from the wood at Hermes, Oise. Pascal reports it 
as common in the environs of Paris; Romagnoli from Bastia, Corsica ; and Gassies 
cites the sub-var. translucens from the Agenais. 
Spain—Staff-Surgeon K. H. Jones found at Arosa Bay, Galicia, large and richly 
coloured specimens and of such exceeding tenuity as to be almost membranaceous, 
reninding one of H. fusca. 
Italy—Staff-Surgeon K. H. Jones collected some very frail specimens at Aranci 
Bay, Sardinia. 
South Africa—Rev. J. W. Horsley reports a small thin form from the Cape. 
Argentine—Strobel records very thin shells from La Plata. 
New South Wales—In this state, about Sydney and other places, the var. 
tenuior is the prevailing form, the shells being small, very thin, and transparent, of 
a reddish tint, and often bandless, C. T. Musson. 
New Zealand—Apua, Bay of Islands, C. T. Musson. 
VARIATIONS IN SCULPTURE OF SHELE. 
Var. rugulosa Bourguignat, Mal. Alger., 1864, i., p. 103. 
SHELL much malleated and strongly shagreened. 
Sicily—Signor Caleara cites a var. ‘‘ striata” as an inhabitant of Sicily, which 
may be referable to this form. 
Algiers—Constantine, The Calle (Bourguignat, |.c¢.). M. Lallemant cites the 
Algerian coast as the habitat of this variety. 
