HELIX PISANA. 389 
; FOREIGN DISTRIBUTION. 
France—Sub-var. bifrons, Deauville, Calvados, and Roquefavour, Bonches-du- 
Rhone ! P. Dautzenberg ; by M. Dubrue'l from Montpellier, Lodéve, Béziers, and 
Lunel, Hérault ; and from the Gard by Clement. Sub-var. interrupta, recorded 
by Clement from the Gard. Sub-var. musica, Toulon, Var! G. K. Gude. Sub-var. 
punctella, La Croisic, Loire Inférieure ! P. Dautzenberg ; and at Marseilles ! 
E. Atkinson. Sub-vars. teniola and bilineata, Bastia, Corsica ! P. Dautzenberg. 
, Italy —Sub-var. bilineata, Bordighera, Liguria, and sub-var. teniola, Terracina ! 
G. K. Gude. Sub-var. punctella, Lido, Venetia ! and sub-var. teniola, Ventimiglia ! 
P. Dautzenberg; and Rome ! Fred Booth. Sub-var. bilineata, near the sea, 
Viareggio ! sub-var. sertwm, Isle of Favignana, Sicily ; and sub-var. musica, Monte 
Pellegrino, near Palermo ! Marquis Monterosato. 
Malta—Sub-vars. bifrons and interrupta, recorded by Issel for Malta. 
Spain—Var. /ineolata and sul-vars. bifrons, interrupta, and junctella, Galicia, 
Dr. Macho. Sub-var. lineolata, Catalonia ! sub-var. musica, Mahon, Minorea, and 
sub-var. bilineata, Palma, Majorca, P. Dautzenberg.  Sub-var. bi/rons, Ferrol, 
Galicia ! Prof. Hidalgo; and Murcia! G K.Gude.  Sub-var. punctella, Jaen, 
Andalusia ! P. Dautzenberg. Sub-var. teniola, Gibraltar ! R. D. Darbishire ; and 
Alicante, Prof. Hidalgo. The sub-var. alboranensis is cited from Cadiz by Dr. C. A. 
Westerlund, and M. Dautzenberg has specimens from the Isle of Alboran. 
Portugal—Sub-var. alborunensis is recorded from Lisbon by Dr. Westerlund. 
Canary Isles—Var. lineolata ! G. K. Gude; Teneriffe, Prof. J. H. Salter; 
sub-var. musica, as Palmas, Grand Canary ! W. J. Farrer. Sub-var. coalita, 
Porto Santo ! F. Booth. 
Morocco—Sub-var. bifrons, Mazagan ! sub-var. teniola, Mogador and Tangiers ! 
and sub-var. musica, Casa Blanca and Mogador ! G. K. Gude. 
Algeria—Sub-var. bifrons, Hussein Dey near Algiers! A. Shaw.  Sub-var. 
punctella, Hussein Dey near Algiers! P. Dautzenberg. Sub-var. teniola, Bone, 
J. R. Bourguignat. Sub-var. albida Lallemant, Algiers (Lallemant, op. cit.). 
Tunis—Sub-vars. bifrons and musica, Golita ! G. K. Gude. 
Egypt—Sub-vars. bifrons and teniola, Alexandria! G. K. Gude. Sub-var. musica, 
Alexandria, Rev. Canon Horsley ; and Suez ! P. Dantzenberg. 
Syria—Sub-var. bifrons, Jaffa, 1904 ! F. H. Sikes. 
Cape Colony—Var. lineolata is one of the most abundant forms on Robben 
Island, according to Mr. Swanton, and is the commonest variety in the colony 
generally, according to the Rev. Canon Horsley. 
Var. undulata Taylor, var. nov. (See also Monogr., pl. xxx., f. 20). 
SHELL with spiral banding interrupted, but fused << 
transversely. 
Pembroke—Tenby ! A. G. Stubbs. A 
FOREIGN DISTRIBUTION. q 
Italy —Lido, Venetia ! P. Dautzenberg. G 
Tunis—Specimens collected in 1846 on the banks of Fic. 443.— Helix pisana var. 
R. Ghabs, Golita, are now in the collection at the  “#¢#/ata Taylor. 
British Museun. Tenby, Mr. A. G. Stubbs. 
Morocco—Specimens from Mogador in Mr. J. Cosmo Melvill’s collection, received 
from Herr Rolle, are referable to this variety. 
Var. diaphana Bourguignat. 
Helix pisana var. diaphana Bourguignat, Mal. Alger., 1864, p. 237. 
Helix pisana var. fasciata-translucens Gassies, Mal. Aquit., 1867, p. 123. 
Helix (Euparypha) pisana var. alba Pallary, Journ. de Conch., 1904, p. 11. 
Helix pisana var. dilucida Monterosato, MS. 
SHELL pure white, with transparent banding. (See Monogr., pl. xxx., f. 10). 
The var. diaphana s.s. is described as ‘“‘glistening white, thin and diaphanous, 
with sub-opaque bands”; and furnishes yet another instance of the confusion by able 
scientists of the transparent banding of the shell with the more opaque ground tint. 
The sub-var. fasciata-translucens is pure white with transparent banding. 
The sub-var. dilueida is described as white with subpellucid bands and white lip. 
The sub-var. alba Pallary is described as porcellanous-white, with greyish 
markings, an expression probably indicating their translucency. 
