91 



in occasional specimens, a pale band in the centre ef 

 the largest whorl. The shell is scattered over witb 

 innumerable bristles. Umbilicus deep, and moderately 

 large, aperture small and roundish lunate, and peris- 

 tome acute, not reflexed, but ribbed internally with 

 white. There are from five to six convolutions. 



Diameter a quarter of an inch. Large examples 

 measure four and a half lines. 



The colour of the animal is greyish. 



As above stated it is liable to considerable variation 

 in both form and general appearance, which circum. 

 stance caused a division into several seemingly distinct 

 species. Mr. Grey had doubts of their being more 

 than varieties, and in the British MoUusca of Messrs. 

 Forbes and Hanley they are now all gathered together 

 again. Of these formerly alleged species may be men- 

 tioned the Helix concinna of Jeffreys, Alder, Grey, 

 Thompsou and Brown; the H. depilata of Alder, Grey, 

 and Brown; and the H. sericea of C. PfeiiTer, Alder, 

 Grey, and Brown. 



The var. H. concinna [or neat snail] is larger, 

 thicker, has a wider umbilicus, and fewer hairs than 

 the usual form of H. hispida. 



The var. H. (JepiliUa [or bald snail] is not hispid, 

 but in other respects does not vary in any marked de- 

 gree from the true H. hispida. It is however slightly 

 more flattened, with the convolutions rounder, and the 

 peristome more thickened. 



The var. H. sericea [or silky snail] is thickly covered 

 with soft hairs, is thinner than H. hispida, has a 

 smaller umbilicus, is darker in colour, and more 

 iflobular than that species. 



The hairs on the shell of H. hispida appear to be 

 very loosely attached, as it frequent'y happens that 

 immersing a very hispid variety in hot water, for 



