THEBA CARTUSIANA. 103 
The occurrence of sub-var. ressmanni in Carinthia, Carniola, and Friaul has, 
according to Herr Clessin, given rise to the statements of the occurrence of 7. can- 
tiana in those regions, the depressed spire, however, infallibly shows its relationship 
to be with 7. cartusiana. 
The sub-var. sarriensis is figured by Comm. Caziot as a depressed form, and 
may perhaps be suitably placed here. It is said to be identical with the form 
figured as H. carthusiana by Prof. Hidalgo in his Catal. Ieonogr. Moll. Espagne, 
ff. 249-251, and is stated by M. Fagot to be the common Spanish form of the species. 
A subsidiary form of H. sarriensis, which has been distinguished by Caziot as var. 
siagnensis, is of the same size, but differs by its more open umbilical cleft, its less 
rounded aperture, and less arcuate columella. 
The sub-var. ventiensis is more depressed, the whorls increasing irregularly in 
size, aperture depressly semilunar and arched above. 
The sub-var. almonis is described as large, very depressed, and smooth, of a 
somewhat opalescent whitish colour, tinged with reddish towards the aperture, 
which is well rounded. Diam., 20 mill. ; alt., 10 mill. 
Sub-var. a/monis was described by Signor Statuti as a form of Theba cantiana 
Mont., but after a protracted and careful study of authentic specimens received from 
the author himself, I have removed it from association with that species and placed 
it with Theba cartusiana. 
CONTINENTAL DISTRIBUTION. 
France—Var. depressa Pascal, environs of Choisy-le-Roi, and d’Orly, department 
of the Seine, and Villeneuve St. George’s, etc., Seine-et-Oise (Pascal, l.c.). 
Sub-var. depressa Caziot is found on the orange trees of the Imperial Park, 
St. Philippe, near Nice; also in the fields on the banks of the Paillon, to the west 
of Fonts Jarrier on the road from Esearéne (Caziot, l.c.). 
Sub-var. savriensis is recorded from the observatory gardens of Mont Gros, and 
at the foot of hedges on the right bank of the Paillon, near Nice, Alpes Maritimes, 
by Comm. Caziot, who also records the sub-var. sarriensis-siagnensis Caziot from the 
alluvium of the Siagne, Alpes Maritimes. 
Sub-var. ventiensis, very common about Nice, ete., Alpes Maritimes, by Caziot. 
Austro-Hungary—Sub-var. ressmanni is recorded from Carinthia, Carniola, and 
near Monfaleone, Goritz, by Clessin. 
Italy—Sub-var. ressmanni is recorded from Friaul, Venetia, by Clessin. 
Sub-var. almonis lives on the grassy banks of the ditches among the vineyards 
in the valley of the historical River Almone near Rome (Statuti, l.c.). 
Spain—Sub-var. sarriensis has been recorded from Barcelona and other places in 
Catalonia. 
Asia Minor—Vavr. depressa found at Jaffa, Feb. 1904! by Mr. F. H. Sikes. 
Var. major Pascal. 
Heltx carthusianella var. magna Porro, Mal. Comasca, 1838, p. 28. 
Helix carthusiana var. major Pascal, Moll. Haute Loire, 1873, p. 38. 
Helix chartusiana var. major Pirona, Moll. Friuli, 1865, p. 7. 
Helix carthusiana var. major Jenner, Journ. of Conch., 1891, p. 363. 
Helix carthusiana var. major Westerlund, Fauna Eur. Moll., 1878, fasc. ii., p. 59. 
Helix claustralis Ziegler in sched., 1889. 
The sub-var. major Pascal is 19 mill. diameter and 10 mill. altitude. 
The sub-var. major of Pirona attains 17 mill. diameter. The sub-var. major 
Jenner is described as 15 mill. diameter. The sub-var. major of Westerlund is 18 
mill. diameter and 9 mill. altitude, 
The var. magna Porro is described as 13 mill. diameter. : 
The sub-var. elaustralis Zgl. is described by Westerlund as thinner, trans- 
parent, and whitish in colour, with an obliquely-rounded mouth, and is figured by 
Rossmiissler as 163 mill. in diameter. 
ENGLAND. 
Sussex E.—Sub-var. major Jenner occurs about Lewes, J. H. A. Jenner. 
Kent E.—Sub-var. major Jenner, Lydden near Dover, 1902, G. K. Gude. 
CONTINENTAL DISTRIBUTION. 
France—Sub-var. major Pascal is recorded from St. Denis, department of the 
Seine, by Pascal; and sub-var. major Moquin from Bastia and Fango, Corsica, by 
Moquin-Tandon. 
