ZONITES. 91 



four, under side slightly tinged with opaque 

 white ; umbilicus rather large (t. 4. f. 39.). 



Helix alliaria. Miller, Ann. Phil. n. s. vii. 379. ; Alder, Cat. 

 12. n. 48. ; Mag. Zool and Bot. ii. 108. ; Turton, Man. ed. 1. 

 56. f. 39. Helix nitens. Sheppard, Linn. Trans, xvi. 160. 

 Helix lurida. Studer,Verz.S.C. Helix ten era. Hartm. 

 N. A. i. 232. Polita glabra. Held, in his, 1837, 619. 

 Helicella glabra. Beck, Ind. 6. Zonites alliarius. Gray, 

 Man. 168. t. 4. f. 39.; Forbes and Hartley, JB. M. iv. 34. t. 

 120. f. 5, 6. Zonites (Aplostoma) alliarius. Moq. Tand. 

 Moll. Franc, ii. 83. t. 9. f. 9 11. Helix foetida. Stark, 

 Elem. N. Hist. ii. 59. ; Brown, Brit. Shells, t. 40. f. 4852. 

 Helix alliacea. Jeffreys, Linn. Trans, xiii. 341. 511. 

 Helix nitida. Shepp. Linn. Trans, xiv. 160. (?) 



Var. 1., transparent greeni-h white. 



Var. 2., larger. Alder, Mag. Zool. and Bot.il 108. Helix 

 glabra. Studer, Ferus. Prod. n. 215. 



Inhab. woods, under stones, decayed leaves, and 

 moss. (Mr. Miller.) 



Animal black ; tentacles short, cylindric, emitting 

 a strong smell of garlic when irritated. 



Shell about one quarter of an inch in diameter. 

 It differs from Z. cellaria in being not above one 

 third the size, and more convex, in having the aper- 

 ture less oblique, the umbilicus larger, and the white 

 on the under side not so well denned ; from Z. niti- 

 dula, in being smaller, and in its bright glossy lustre 

 and transparency. 



Dr. Johnston does not consider //. nitida and H. 

 nitidula as distinct from H. alliaria of Miller; he 

 found all under one stone, selected four nearly of 

 one size ; and none of them had any garlic smell 

 when alive, but on immersing them one by one in 

 hot water, two emitted a very strong garlic-like 

 odour ; in one it was faint, and in the other it was 



