HELIX. 121 



Helix pisana. Mutter, Verm. 60. ; Lam. H. vi. 82. ; Ross. Icon. 

 vi. 34. f. 359., x. 15. f. 614. ; Forbes and Hanley, B. M. iv. 

 56. t. 115. f. 7, 8. Helix petholata. Oliv. 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. 

 Mutter, Verm. (?) 25. Teba cingenda. 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. 

 Carocolla 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, where 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 



