460 



We have alfo found it both in the north and fouth of 

 Devonjfiire ; in Dorfetjhire dhonx. Ware/mm ; and have 

 received it from SoiUh Wales. 



Youno- riiells have only three volutions, but are readi- 

 ly dilHnguifhed in all ftates, by their extremely fine ftrise, 

 which give them a fort of roughnefs. 



Animal of a light colour, with two long, (lender, fili- 

 form tentacula; and two black eyes, placed at their 

 bafe, on the top of the head. 



65. — ♦^ 



Cristata. Helix cornea quatuor anfraftibus apertura rotunda. IPalk. 



ViG.I. Mill. Shells. L\^. 



pig_ 7, 8. Valvatacrillata. Mtiller Verm. ii. p. l9S.No, 384. 



Schroeter Fh/JJconch.^. 240. t. 5. f. 26. a. b. 



H. with a fub-pellucid, light horn-coloured (hell, with 

 three, and fometimes four, depreffed volutions; the 

 a/fx very little funk; bafe, or under part umbilicated, 

 expofing nearly the whole of the interior whirls: the 

 volutions are remarkably rounded, or cylindric, and are 

 flriated, or flightly wrinkled tranfverfely : aperture per- 

 feftly orbicular, attached to, but not interrupted by, 

 the body whirl; margin not thinner than the reft of the 

 fiiell, and very little oblique. Diameter one tenth of 

 an inch. 



This fpecies we alfo received originally from Mr. 

 Boys, for the fhell given by Walker, as referred to, 



but 



