60 HEUX. SNAIL-SHELL. 



greenish, purple of various shades, pale pjiik, whitish, 

 rarely clear white, like the H. Cartusiana ; sometimes with- 

 out bands, or with from one to five broader or narrower 

 ones : aperture roundish crescent-shaped, produced on the 

 front part, slightly reflected, with the margin on the inside 

 brown or clear white, and rarely with intermediate shades 

 or furnished with an elevated rim round it : diameter hardly 

 an inch ; height about three quarters. 



Those which have the white inside margin are usually 

 smaller : and when young there are only three volutions 

 which are placed quite flat upon the larger one, distin- 

 guishable only by the circular line, as in the Nerita littoralis. 

 In this very young state we think Mr. Brown has figured it 

 in the Wernerian Transactions, pi. 24. f. 8, under the name 

 of H. elliptica. 



Much confusion has been spread in the careless quota- 

 tions of DaCosta's figures of this shell. Maton and Rackett, 

 in attempting to arrange the varieties, have included that 

 with the white lip among those which are banded and have 

 a brotfn lip, omitting it in its proper place. Mr. Rackett, 

 in his Dorset Catalogue, has omitted some of the figures 

 in his own plate, substituting the fig. 6. of Da Costa, which 

 is the Bulla fontinalis. Mr. Dillwyn has omhted the figure 

 of Da Costa with the white lip, and copied Mr. Rackett's 

 error in the reference to the plates of the Dorset Cata- 

 logue, including also the Bulla fontinalis. 



Common in hedges and gardens, v. v. 



4 1 . Helix hortensis. Garden Smil-skeU. 



Lister, pi. 49. f. 47 -Pennant, pi. 87. f. 3 Da Costa, 

 pi. 4. f. 1 Dorset Cat. pi. 20. f. 1 Donovan, pi. 131. 



Shell somewhat globular, semitransparent, covered with 

 an irregularly creased and wrinkled skin : spires four, the 

 upper-one placed a little on one side, more or less distinctly 

 but obscurel^striate circularly : color dirty white or yel- 

 lowish with generally four tawny bands, often variously 

 interrupted and presenting a marbled appearance : apertur* 

 roundish crescent-shaped, produced in front, with a clear 

 white slightly reflected margin extending over tne pillar, 

 where it sometimes forms a small perforation: diameter 



