HELIX. 107 



and H. hortensis called vesicula multifida by M. 

 Cuvier, in his dissection of Helix Pomatia, and fur- 

 ther observed that this name for the organ gives 

 an erroneous impression, as in several of the Helices 

 it is simply forked, and in others doubly forked, and 

 rarely many-cut, as it is in the edible snail. 



Helix hortensis has been introduced into the 

 United States, where it is observed that, unlike the 

 American Helices, they are not found burrowing 

 under stones and decayed leaves, but on the ground, 

 and crawling up the stems of plants. (Gould, Mass. 

 175.) 



36. 3. HELIX hybrida. The Brown-mouthed Snail. 

 Shell somewhat globular, smooth, polished, 

 brown or yellow, brown-banded, with the rib 

 of the lip pale brown, and the edge whitish, 

 (t. 11. f. 130.) 



Helix hybrida. Poiret, Coq. Terra Flnv. Aisne, 71.; Gray, 

 Man. 132. t. 11. f. 130. Helix hortensis var. Ferussac, 

 Tabl. 31. ; Alder, Mag. Z. and B. ii. 106. Helix nemoralis 

 part. Forbes and Hanley, B. M. iv. 53. Helicogena 

 hybrida. Beck, Ind. Tachea hybrida. Hartm. Helix 

 fusca. Poiret, Paris. 



Inhab. woods and hedges with the former. 



The animal of this species differs from either Helix 

 hortensis or H. nemoralis, in the form of the vesicula 

 multifida, as well as in the colour of the mouth of 

 the shell. In all its characters it is intermediate 

 between these two species ; but yet I do not think 

 there is any reason to believe that it is a mule, or 

 that it unites them into one species. This species 

 does not seem to be so variable in its colour as either 

 of its allies. The jaw is strong, costated, and toothed. 



