160 PNEUMONOBRANCHIATA. 



42.24. Helix virgata. Zoned Snail, (t. 4. f.31.) 

 Shell somewhat globular, white, with from one 

 to six brown bands ; the mouth dull rufous ; um- 

 bilicus moderate. 



Helix virgata. Montagu, p. 415. t. 24. f. 1.; Tur- 

 ton,Man.ed.l. 40. £31. 



Teba virgata. Leach, Mollusc, p. 93. 



Helix variabilis. Drap. p. 84. t. 5. f. 11, 12.; 

 Ferussac, Journ. Phys., 297. ; Rossm. Icon. t. 26. 

 f. 356. a. f. 



Helix striata. Brard, p. 36. t. 2. f. 5, 6. 



zonaria. Donovan, ii. tab. 65. 



pisana. Dillicyn, p. 911. 



subalbida. Poir. Prod. 83. 



On short grass, on sandy plains, especially about the 

 sea-coasts. 



Animal purplish-ash ; foot thick, yellowish. 



Shell about half an inch in diameter, and nearly 

 as much high, usually white with a single dark brown 

 band in the middle of the larger volution, and several 

 irregular ones at the base; but subject to infinite 

 variations from the presence or absence or confluence 

 of the bands, the most singular of which is that of a 

 dark brown with a single white band, and that of a 

 pure opake white with transparent white bands, the 

 tip generally black ; about the mouth and pillar dull 

 rufous ; aperture longer than broad, the margin thin 

 and reflected at the umbilicus, which is small and 

 deep. 



When young, the larger volution slopes to a some- 

 what carinated edge. 



Varies greatly in size, being sometimes three fourths 



