421 



rating line, and flriated, or rather wrinkled longitudi- 

 nally : fhape in general, confiderably comprefTed, and 

 the apex very little elevated, fo that its height is not 

 above half the breadth. Sometimes it is two-thirds as 

 high as it is broad, and the a^i!!'!?^ more produced : on 

 the middle of the lower volution is a flight, fub-carinated 

 edge, which is more ftrongly marked by being of a lighter 

 colour like a band : aperture femi-lunated, outer lip 

 thin, a little reflefted at the lower angle : umbilicus large 

 and deep. Diameter at the bafe, half an inch. 



This fiiell fometimes appears a little mottled when the 

 animal is alive, efpecially in the lighter coloured varie- 

 ties : fome are quite pale, others of a deep orange-brown. 



The young of this fpecies are frequently hirfute, or 

 covered with fliort hairs ; in which ftate it has been con- 

 founded and defcribed for Helix hifpida; and wefufpefl; 

 is the H. tovientofus of Mr, Adams, Linncsan TranfaEli- 

 ons, vol. iii. p. 254. and of Tur ton's Linn^us, iv. 



P- 525- 



It is, however, readily diftinguifhed in that ftate from 



the hifpida, by its more comprelfed fhape, in being more 



opaque, and by the umbilicus, which is much larger: 



the hairs too, are fliorter, and feldom fpread all over the 



fhell. This hifpid appearance wears off before they are 



half grown. The animal of this is dudcy, that of the 



other light coloured; both have four tentacula, and 



eyes placed at the tips of the longeft. 



It 



