HELIX. 121 



Helix pisana. Miiller, Verm. 60. ; Lnm. H. vi. 82. ; Ross. Icon. 

 vi. 34. f. 359., X. 15. f. 614.; Forhes and Hanley, B.M. iv. 

 56. t. 115. f. 7, 8. — Helix petholata. Olio. Z. Ad. 178. 

 1792. — Helix cingenda. Montagu, T.B. p. 418. t. 24. f. 4; 

 Linn. Trans, viii. 195. t. 5. f. 6., xiii. 333. — Helix albina. 

 Miiller, Verm. (?) 25. — Teba cinp;enc]a. Leach, Moll. Syn. 

 67. — Helix zonaria. Penn. B.Z. iv. 137. t. 5. f. 133. 1777. 

 (not Donovan). Helix rhodostoma. Drap. Moll. p. 86. t. 

 5. f. 13 — 15.— Helix strigata var. Dillwyn, R. S. p. 911. — 

 Theba pisana. Risso, Eur. Merid. iv. 73. — Helix albella. 

 Fleming, B. A. 260. (immature). — Helix alboramensis. 

 Webb and Berth. Canar. — Xerophila pisana. Held. Isis, 1837, 

 96. — Euparypha rhodostoma. Hartm. i. 204. t. 79, 80. — 

 CarocoUa maculata. Menke, Syn. 25. 



Inhab. dry sandy places near the sea. 



Animal yellowish white ; neck purplish ; tentacles 

 long, club-shaped. 



Shell about half an inch in diameter, and not so 

 much high, with the volutions a little flattened at 

 top, slightly striate ; colour whitish or yellowish, 

 rarely without coloured bands, but mostly with seven 

 or eight brown circular lines on the lower volution, 

 often broken into dots ; the tip black ; these bands 

 are very variable ; aperture longer than wide, with 

 the margin thin and reflected at the pillar, Avhere it 

 half closes the narrow but deep umbilicus ; the re- 

 gion of the mouth is generally of a more or less 

 intense rose-colour. 



It varies greatly in the distinctness, the strength, 

 and the disposition of the bands : sometimes they 

 are altogether wanting, and at others (rarely) suffused 

 over the surface. It also varies in the colour of the 

 throat, which is generally rose-coloured, but some- 

 times pure white ; also greatly in size, according to 

 the situation ; and also in form, varying from sub- 

 globose to subconic, or depressed, as in other species 



