226 HELIX POMATIA. 
CONTINENTAL DISTRIBUTION. 
France—Rare in the quarries of Janville, St. Laurent ; on the chalky slopes of 
Coineourt, on Garenne d’Houdainville, and amidst the fields about St. Felix in the 
department of the Oise (Baudon, L.c.). 
The sub-var. crassa is recorded from Combovin in the Drome by M. Sayn. | 
Breviere alludes to a thick-shelled variety found at the margins of woods on 
caleareous soil at Lichy and St. Benin-des-Bois, Nievre. 
Austro-Hungary—Bielz records medium-sized but thick shells from Transylvania. 
Morocco—The Rev. A. H. Cooke mentions specimens of extraordinary thickness 
from Fez (Molluses and Brachiopoids, 1895, p. 25); bat North Africa being: beyond 
the region naturally oceupied by this species, the specimens referred ‘to by Mr. 
Cooke have originated from introduced European shells. 
Var. tenuis Baudon, Journ. de Conch., 1884, p. 242. 
SHELL very thin and well coloured, but almost semi-transparent. 
CONTINENTAL DISTRIBUTION. 
France—Found rarely on the sandstone at Garenne d’Houdainville in the 
department of the Oise (Baudon, l.c.). 
Austro-Hungary—A large and thin variety is recorded by Bielz from various 
localities in Transylvania. 
VARIATION IN SCULPTURE OF SHELL. 
Var. costellifera Baudon, Journ. de Conch., 1884, p. 241, pl. 8, f. 3. 
SHELL globular and solid, with broad, flat, and prominent transverse ridges. 
France —Contined to a small wood crowning a limestone hill at Mouy, Oise 
(Baudon, l.c.). Dr. Baudon remarks on receiving somewhat similar specimens 
from Espalion, Aveyron, collected by M. Pons d’Hauterive. 
VARIATIONS IN COLOUR OF SHELL. 
Var. albida Moquin-andon, Hist. Moll. France, 1855, p. 179. 
Helix pomatia var. albina Spinelli, Mal. Brescia, 1856. p. 6. 
Helix pomatia var. albescens Lallemant and Servain, Moll. Jaulgonne, 186), p. 16. 
Helix pomatia var. hajnaldiana Hazay, Mal. BI., 1881. p. 41, pl. 2, f. 4. 
Helix hajnaldiana Servain, Ann. Malac., 188, i., p. 350. 
Helix pomatia var. aléa Baudon, Journ. de Conch., 1884, p. 243. 
SHELL whitish and unicolorous, with pale straw 
coloured epidermis. 
The sub-var. alba Baudon is described as pure 
crystalline and slightly transparent white, and it is 
conjectured that the shell may be composed of silica 
united with carbonate of lime. 
The sub-var. hajnaldiana is described as of an 
unicolorous glistening white or yellowish-white, and 
with a somewhat risen spire. Alt. 38; diam. 33 mill. 
This form was at first mistaken by Hazay for the 
albine variety of Helix cineta, to which species it 
bears a great resemblance. 
ENGLAND AND WALES. 
Hants. N.—Scarce at Axford, Preston Candover ; 
(H. P. Fitzgerald, Journ. of Conch., 1884, p. 204). ie ee 
Surrey —Near Dorking, July 1885, J. W. Williams. i ; 
Reigate, Mr. Brewer (Jeffreys, Brit. Conch., 1862). Box Hill! L. E. Adams. 
Herts.—One specimen among a rank growth of nettles, brambles, ete., in a chalk 
quarry, Puckeridge, Aug. 1882, E. H. Rowe. 
Oxford—On grassy bank of railway cutting near Charlbury, on oolitic strata 
(D. Pidgeon, Q. J. of Conch., 1875, p. 56). Wychwood Forest (Whiteaves, Oxford 
List, 1857). 
CONTINENTAL DISTRIBUTION. 
Germany—Three albine specimens recorded in 1876 by Dr. Weinland from the 
Suabian Alb; and Meyer records it from Alsace. 
Belgium—One specimen at Villers-la-Ville in Brabant (Van den Broeck, Bull. 
Soc. Mal. Belg., 1870, p. 23). 
