9 6 



SHELLS, 



Class VI. 



Borealis. Lin. Sjfi. 1134- No. 143'. Lift. Angl tab.'w. fig. 23. Conch, 



52. Nor- f#£. 253. fig. 88. 



THERN. 



V. with thin fhells, much deprefTed, marked with 

 flender concentric ftria. 



Length one inch and a half ^ breadth near two 



inches. 



Litterata. Lin. Syfi. 1 1 35. No. 147. Faun. Suec No. 2146. Lifi. 



53. Letter- Conch, tab. 400.^.239. 



V. with thick fhells, marked tranfverfely with fre- 

 quent crenulated ftria^ fometimes fmoother -, of a 

 whitifh color, ftreaked with lines refembling cha- 

 racters. In Britifo fpecimens ufually faints in fo- 

 reign very flrong and elegant. 



Length an inch and three quarters j breadth 

 two inches and a half. 



"Tab. lvii. fig. 53. 



Defiora'a. Lin. Syfi. 1133. No. 1^2. 



54. Fading. 



V. with thin oval fhells, floated lengthways, femi- 

 pellucid •, rayed with purple and white, both within 

 and without. 



Size near an inch and half in breadth, 



Tiib. lvii. fig. 54, 



o V. with 



