160 XEROPHILA VIRGATA. 
BRITISH DISTRIBUTION. 
The var. dutescens extends over a considerable number of comital divisions in 
the British Isles. ; 
FOREIGN DISTRIBUTION. 
France—It is recorded by M. Pascal from the environs of Paris, and by Dr. 
Scharff from Bordeaux, Gironde. It has also been found by Dr. W. E. Clarke at 
Perpignan, Pyrénées Orientales; by Mr. Hugh Watson at Cap Breton in the 
Landes, and Grasse in the Alpes Maritimes ; by Moquin-Tandon from Port Vendres, 
Alpes Maritimes ; and by Mr. I’. H. Sikes at Bayeux in Calvados, and Estretat in 
Seine Inférieure. 
Italy—Dr. Arturo Issel has recorded its presence at Perugia, ete., in Umbria, 
as well as from the Island of Malta. 
Spain—It is recorded by Bofill from Barcelona in Catalonia. 
Asia Minor—It is recorded by Prof. von Martens from Troas (the ancient Troy), 
in the province of Broussa, on the authority of Dr. Virchow. 
Algeria—M. Bourguignat records it from Oran, Mostaghenem, and other places. 
Var. hyalozona Moquin-''andon. 
Helix variabilis var. 6 Bouch.-Chant., Moll. Pas de Calais, 1838, p. 35. 
Helix variabilis var. hyalozona Moquin, Hist. Moll., 1855, vol. ii, p. 263 (not the 
hyalozonata of British authors). 
Helix virgata var. variabilis f. hyalozona Westl., p.p. Faun. Palzearct., 1889, p. 166. 
The var. hyalozona Moa. is described as yellowish with transparent bands. 
The sub-var. hyalozona Westerlund is yellowish [or matt-white] with trans- 
parent bands, and only in part placed here. 
GEOGRAPHICAL DISTRIBUTION. 
Neither Moquin-Tandon or Westerlund give any precise references to its range. 
France—The var. hyalozona Moq. is enumerated for the Pas-de-Calais as var. 6 
hy M. Bouchard-Chantereaux, and recorded for Nimes, Gard, by M. Clement. 
Var. albicans Grateloup. 
Helix variabilis var. § Draparnaud, Tabl. Moll., 1801, p. 73. 
Helix vdriabilis var. albicans Grateloup, Moll. Landes, 1829. 
Helix variabilis var. grisea Bouch.-Chant., Moll. Pas-de-Calais, 1838, p. 35. 
Helix variabilis var. albida Westl., Faun. Europ., 1878, p. 97, Rossm., Iconog., 1839, 
f. 356e. 
Helix lauta var. albinos Bourgt., Mal. Alger., 1864, vol. i, p. 223, pl. 23, ff. 15, 16 & 22. 
Helix tstriensis (Zg\.) Menke, Syn. Moll. Meth., 1830, p. 23. 
Helix variabilis var. bordighalensis Reinhardt, S. B. Gesellsch, Nat. Fr., 1886, p. 55. 
Helix variabilis var. albescens Benoit, Test. estram. Sicily, 1857, p. 126, pl. ii, f. 21d. 
Helix virgata var. variabilis f. albicans Westerlund, Faun. Palzarct., 1889, p. 166. 
SHELL almost uniformly whitish, frequently tinged with rufous at the aperture. 
This variety is said to be often smaller than the fasciate form found with it, 
and its characters are probably a result of living under exposed and arid conditions. 
It has been noted by Rev. E. A. Woodrutte-Peacock and Mr. Hawkins as especially 
frequenting and feeding upon the black knapweed (Centaurea nigra) in Lincoln- 
shire, and at Castle Howard, Yorkshire. 
The var. albieans Grateloup s.s. is described by Moquin-Tandon as entirely 
whitish or white. 
The var. albinos Bourguignat is described as entirely whitish. 
The var. istriensis Ziegler, described by Menke as “ unicolor albida,” and the 
H. zaraensis Muhlf. from Zara, Dalmatia, are both probably referable to the var. 
albicans of the present species. 
The var. albida Westerlund is unicolorous whitish, spire slightly elevated. 
The var. albeseens Benoit is smaller, uniformly whitish, sometimes fasciate, 
spire somewhat raised, and apertural rib of a rosy red. 
The var. bordighalensis Reinhardt is described as small, entirely white, and 
unbanded, but this is not the Helix burdigalensis of Grateloup, which is a banded 
form and belongs the fasciate group. 
The var. grisea Bouchard-Chantereaux is described by Moquin-Tandon as 
entirely grey, and I inclined to regard it as merely an extreme and subordinate 
form of the var. albicans. 
