THEBA CANTIANA. 89 
Var. minor Moquin-T'andon. 
Helix (Zenobia) cantiana vy. ntinor Moq., Hist. Moll. Fr., 1859, i1., p. 202, pl. xiv., f. 13. 
Helix cantiana var. minor Westerlund, Moll. Extramar., 1878, p. 48. 
Helix d’ancone var. ntinor Nevill, Proc. Zool. Soc., 1880. 
Helix ancone var. minor Westerlund, Moll. Palzarct., 1889, p. 79. 
Helix cemenelea var. minor Westerlund, Moll. Palzarct., 1889, p. 79. 
Helix cemenelea var. minov Caziot, Moll. Monaco, 1910, p. 86. 
Helix carfanensis var. minor Stef., Bull. Soc. Mal. Ital., 1883, 
Helix cantiana var. nana Fenn, Nature Notes, 1890. 
The var. minor Mogq.-Tand., s.s., is deseribed as 
resembling the var. galloprovincialis Dupuy, but much 
smaller in size, and is figured as 12 mill. in diameter and 
8 mill. in altitude. The sub-var. minor Westl. has a 
subovate aperture, and is 15 mill. in diameter and 10 mill. 
Fic. 134.—Theba cantiana v. 
in altitude. ‘ ¢ i 
in : 4 ; minor Moq., Yardley Hastings, 
The H. ceemenelea var. minor Westl. is deseribed as © slightly enlarged, R. Rogers. 
14 mill. in diameter and 10 mill. in altitude. The #. 
cemenelea var. minor Caziot has a diameter of 105 mill. 
and an altitude of 83 mill. 
The H. aneonse var. minor Westl. is ascribed a 
diameter of 11 mill. and an altitude of 75 mill. 
The H. d’aneone var. minor of Nevill is 11¢ mill. 
in diameter and 7} mill. in altitude, and is regarded by 
its author as possibly the Helix delacourti Mabille, which, however, according to 
Comm. Caziot, is a somewhat larger though similarly proportioned shell. 
ENGLAND. 
F1G.135.—//.galloprovincialis 
small var. (after Dupuy). 
Somerset N.—IXeynshain, Nov. 1887 ! Miss F. M. Hele. 
Kent E.—Common. Dover, Aug. 1888! Canon J. W. Horsley. 
Middlesex—Sub-var. nana, Spring Grove, Isleworth. 
Bucks.—Ivinghoe, Sept. 1907 ! C. Oldham. 
Suffolk E.—Walberswick, 1886 ! G. 'T. Rope. 
Norfolk E.—Lonegstratton, Aug. 1890, Lionel E. Adams. 
Northampton— Yardiey-Hastings, Aug. 1885 ! hk. Rogers. 
Gloucester W.—Hortfield and Stapleton, Aug. 1887, Miss F. M. Hele. 
York S.E.— Kirkham Abbey, 1891, L. E. Adams. Hunmanby Sands, Filey, 
Sept. 1909! W. E. Brady. 
York S.W.—Notton, near Barnsley, July 1907, W. E. Brady. 
CONTINENTAL DISTRIBUTION. 
France—H. anconw var. minor from the littoral zone, Alpes Maritimes (Nevill, 
Proc. Zool. Soe., 1880). According to Comm. Caziot, this variety is found at Roque- 
brune, and a still smaller form at Mont Alban, Alpes Maritimes. 
Italy—Var. minor Moq.-Tand., Valleys of the Tidone, Trebbia, and Secchia, 
Tuscany (Strobel, Bull. Soc. Mal., 1877, p. 88). 
Sub-var. cemenelea-minor Strobel is recorded from Modena, Parma, ete., Emilia, 
by Picaglia. 
Sub-var. carfanensis-minor is recorded at an elevation of 6,000 feet from San 
Pellegrino, Emilia. 
VARIATIONS IN COLOUR OF SHELL. 
Var. alba Colbeau, Ann. Soc. Mal. Belg., vol. 1., p. 33, 1865. 
Helix iadola (Bourg.) in Mace’s Excurs. Malac., 1876. 
Helix ancone var. carfanensis Stefani, Bull. Soc. Mal. Ital., 1883. _ 
Helix cantiana var. albida Vaylor, Journ. of Conch., vol. iv., p. 39, 1883. 
The var. alba is described as shell entirely white. me 
The sub-var. earfanensis is described by Westerlund € , aN 
as wholly opaque or almost hyaline white. Diam., 15 — 
ill. ; alt. ill. 
= 1 earl : : F p Fic. 136.— Helix carfanensis 
The sub-var. albida Taylor is described as shell Stef., Vagli, Tuscany, slightly 
entirely opaque-white. reduced (after de Stefani). 
The sub-var. iadola differs from the sub-var. anconee in its milk-white colour, in 
the progressive increase of the whorls in size, and less oblique aperture. Diam., 
14 mill. ; alt., 10 mill. 
