413 



from the H. nemoralis, and have given the white lip as 

 an invariable charafter. 



Gmelin and Chemnitz have exprefied a doubt. 



To this fubjeft we have paid confiderable attention, 

 by colle6ling thefe fliells from different parts of the king- 

 dom ; and have invariably found the fmaller fhells with 

 the white lip, and the larger with a brown margin to 

 that part; and have never yet found the red or flefli- 

 coloured variety with the former. It has been conjec- 

 tured, that this fhell is only the young of the other, but 

 the perfeft formed mouth precludes all fuch idea: it is 

 alfo much lefs common, which would not be the cafe if it 

 was the young of the nemoralis, and the red variety 

 would equally occur. From thefe circumftances we arc 

 inclined to believe, they are perfeftly diflinft. 



That they are full grown fhells is evident from the 

 ftrufture of the lip ; for the nemoralis is larger before the 

 lip is formed : and we cannot think it an accidental va- 

 riety in a depauperated ftate, becaufe neither of tHeir 

 mouths ever vary. 



28. 

 Helix Arbuftorum. Lin. Syfl. p.\2'i5—GmeL Syji. p.3630.53. Arbustorum. 

 C/iem. Conch, ix, t. 133. f. 1202. 

 Mnller Verm. ii. p. 55. No. 243. 

 Lijler Conch, t. 56. f. 53. 



Id. An^l t. 2. f. 4. 



Helix 



