191 



7. 

 Nautilus: fpiralis, umbilicatus, geniculis fulcatis. /F^zZ/v. Umbilicatulus 



Min. Shells, f. 69. 

 Nautilus umbilicatulus. Turt. Lin. iv. p. 306. 



Adams Microfc. p. 641. t.'l4. f. 34. 



N. with a fpiral, umbilicated iliell, with furrowed 

 joints: colour opaque white. 



From Sandioich : not common. 



8. 

 Nautilus: crafliis, utrinque umbilicatus, geniculis lineatis. Crassulus. 



IFalk. Min. Shells, f. 70. 

 Nautilus craffulus. Turt. Lin. iv. p. 306. 



Adiuns. Alicrofc p. 641. 1. 14, f. 35. 



Martini. Conch, i. t. 19. f. 171 > 



N. with a thick, fpiral, doubly umbilicated (hell, with 

 fine joints ; colour opaque white. 



From Reculver : exceeding rare. 



This, and the two preceding fpecies, never having 

 come under our examination, we have been obliged to 

 borrow their defcription from Mr. Walker. 



^^tf^ 9. 



Nautilus lacuftris. Phil Tnmf. LXXYl. t. I. (Lighlfoot.) Lacustris. 

 Helix lineata. M^alL Min. Shells, f. 28. Tab. 6. f. 3. 



Helix nitida. Gmel. Syji. p.3624?— T//r/. Lin. iv.p. 511. 

 Schroet FhJJconch. t. 5. f. 27 ? 



N. with 



