a 
By) 02: HELIX NEMORALIS. 
Var. undulata Gentil. . 
Helix nemoralis var. undulata Gentiluomo, Bull. Mal. Ital., L867, i., p. 9, pl. 1. ff. 9. 10. 
Helix nemoralis var. exjaveci Kobelt, Rossm. Icon., p. 37, f. 1966. 
SHELL with the spiral banding broken-up, and 
fused transversely at intervals, forming oblique dark 
streaks across the whorls. 
It is also the var. transversa Wilcock Ms., Cockll. 
The sub-var. erjaveci is described as usually 
showing the formula 0(23)(45), with a series of slender — 
but irregularly spotted darker transverse lines, re- Bic. 368.—Helrv nemoralis var. 
stricted to the zonal recion. undulata Gentil. (Blagdon, Bristol). 
The sub-var. erjaveci is a modification of the var. undulata, differing chietly 
froin characteristic specimens of that variety in the pale chestnut coalescent spiral 
banding being perceptible beneath the numerous slender, dark, and somewhat 
blotchy transverse lines, which are coincident with the lines of growth, and extend 
over the area normally oecupied by the zonulation. 
ENGLAND AND WALES. 
Devon N.—Barnstaple, H. Beeston and C. E. Wright. 
Somerset N.-—Hedgebank on summit of Milton Clevedon hill; also at Grove- 
lands, Bratton St. Maur, E. W. Swanton. 
Hants S.— Fordingbridge, 1886 ! Hugh Richardson. 
Hants. N.—Alresford ! Rev. W. L. W. Eyre. 
Northampton — Railway embankment, Great Houghton, Lionel E. Adams. 
Catesby, Oct. 1899, C. E. Wright. 
Gloucester E.—Cotswold Hills, J. R. B. Masefield. 
Monmouth—Piercefield Woods, Chepstow ! F. H. Sikes. 
Warwick—Nuneaton, C. E. Wright. 
Stafford—Garden, Cheadle, J. R. B. Masefield. 
Lincoln S.—Canwick, July 1907, J. F. Musham. 
Lincoln N.— Bardney, Sept. 1907, J. F. Musham. 
Lancashire S.—Southport ! W. H. Heathcote. 
Lancashire Mid—Canal side, Bolton-le-Sands, Aug. 1905, H. Beeston. More- 
cambe, J. Davy Dean. 
York S.E.—Spurn, T. Petch. Bridlington, Sept. 1902, C. E. Wright. 
York N.E.—Castle Hill, Scarborough, J. A. Hargreaves. 
Westmorland and Lake Lancashire.—Hampsfell and Kirkhead, H. Beeston. 
Cumberland— Common about Bassenthwaite and Keswick, W. J. Farrer. 
IRELAND. 
Dublin—Dollymount, June 1883 ! J. R. Redding. 
Roscommon—Ballymore, Sept. 1889 ! J. G. Milne. 
Galway W.—Loughrea, Dr. R. F. Scharff. 
Kerry— Rectory garden, Valentia, Miss Delap (Carrington, Se. Goss., 1899, p. 229). 
Italy —Lucea (Gentiluomo, l.e.). ONE, 
Austro-Hungary—Sub-var. eryaveci, Gorz, Styria (Kobelt, l.c.). 
Portugal—Morelet records from the neighbourhood of Oporto specimens in which 
the bands are interrupted by prominent strize of the same colour. 
VARIATIONS IN COLOUR OF BANDING. 
r : >: . 
Var. fascialba Picard. 
Helix nemoralis var. fascialba Picard, Moll. Somme, 1840, p. 184. 
Helix nemoralts var. leucozona Taylor, Ms. 
SHELL with a pale, more or less calcified and opaque peripheral band, usually on 
a darker but more translucent ground tint, which represents a former scheme of 
banding now lost by suffusion and degeneration, and upon which the more modern 
bands are developed, the pale peripheral band really indicating the original or a more 
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primitive ground colour. 
This variety is one of the most interesting and suggestive of the whole range 
this species offers, and has been hitherto named and distributed as var. /eweozona, 
but Picard’s name takes precedence ; it is evidently an atavie form and must be 
classified with the similar paleogenie forms exhibited by /elix cantiana, H. his- 
pida, H. rufescens, and other species. This former scheme of colouring may be 
readily recognized even when complicated with the presence of the more modern 
