130 XEROPHILA ITALA. 
VARIATIONS IN THE BANDING OF THE SHELL. 
This group is intended to embrace all banded shells of this species, taking 
cognizance of the modifications in the number, position, pigmentation, degree of 
development or disintegration of the bands, and their various modes of fusion. 
Var. fasciata Gassies. 
ONE BAND ABOVE PERIPHERY, ONE OR MORE BENEATH, 
Helix ericetorum var. fasciata Gassies, Moll. Agenais, 1849, p. 97. 
Hlelix ericetorum var. fasctata Baudon, Moll. Oise, 1852, p. 25. 
Helix ericetorum var. trivialis Moquin-Tandon, Hist. Moll. France, 1835, p. 253. 
Helix ericetorum var. bizonalis Pascal, Moll. Haute-Loire and Paris, 1873, p. 41. 
Helix ericetorum var. sexfasciata Millet, Fauna, Maine-et-Loire, 1870, p. 26. 
‘rWO OR MORE BANDS ABOVE PERIPHERY, ONE OR MORE BENEATH. 
Helix ericetorum var. fasciata and elegans Moquin-Tandon, loc. cit. 
BANDS SUPRAPERIPHERAL ONLY. 
Helix ericetorum var. monozona Moquin-Tandon, loc. cit. 
BANDS INFRAPERIPHERAL ONLY. 
Helix itala var. hyfozona Taylor, var. nov. 
ins ae ; BANDS RADIATE. 
Helix ericetorum var. lentiginosa Moquin-‘landon, loc. cit. 
BANDS COALESCENT. 
Helix ericetorum var. coalita Pascal, loc. cit. 
Helix ericetorum var. leucozona Moquin-Tandon, loc. cit. 
BANDS FAINTLY PIGMENTED. 
Helix ericetorum var. 8 Draparnaud, Hist. Moll. France, 1805, p. 107. 
Helix ericetorum var. obliterata Picard, Moll. Somme, 1840, Pp: (230. 
Helix ericetorum var. deleta Moquin-Tandon, loc. cit. 
Helix ericetorum var. fasciata Dum. et Mort., Moll. Savoie, 1857, p 59. 
Helix ericetorum var. albiduda Bourguignat, Mal. Alger., 1864, vol. i, pl. 30, ff. 4—5. 
Helix ericetorum var. grisescens Colbeau, Ann. Soc. Mal. Belg., 1865, vol. i, p. 33. 
SHELL with one or more spiral bands, which may be distinct, coalesced, or 
variously broken up. 
ONE BAND ABOVE PERIPHERY, ONE OR MORE BENEATH. 
The var. trivialis Moquin-Tandon is described as possessing a single band above 
the periphery and one or more beneath, and is here regarded as the typical form of 
the species, The sub-var. bizonalis Pascal has one broad band above the periphery 
and a second which is narrower and occupies the centre of the last whorl. ; 
— 
Fic. 196. Fic. 197. 
Fic. 196.—X. ztala (L.), Tenby, South Wales, Mr. W. H. Boland. 
Fic. 197.—X. tala var. bizonalis Pascal, Eastbourne, Mr. A. G. Stubbs, x 1}. 
Many authors have not described the arrangement of the bands, and they therefore 
cannot be classified under the most appropriate heading, which is probably that of 
var. trivialis. The sub-var, fasciata Gassies and the sub-var, sexfasciata Millet are 
both stated to possess six zonulations, but their arrangement is not indicated. The 
sub-var. fasciata of Baudon is stated to possess one to four bands, but no further 
information is available. 
The sub-var. fasciata Dum. and Mort. is defined as possessing very feebly pig- 
mented somewhat translucent bands, and will perhaps be most appropriately 
classified with the sub-var. grisescens Colbeau, and forming a link or passage with 
the var. cornea Locard. 
TWO OR MORE BANDS ABOVE PERIPHERY, ONE OR MORE BENEATH. 
The var. faseiata of Moquin-Tandon is described as possessing many slender 
brown bands continuous above, and is here accepted as the type of fasciata, as that 
author was the first to precisely define the band arrangement, which distinguishes 
this form from var. trivialis. 
The sub-var. elegans Moquin-Tandon has several narrow bands above the 
periphery which are alternately continuous lines or composed of spots. 
