[ 5 ] 

 PATELLA. The Limpet. 



FIG. i6. 



PATELLA Plana orbiculata margine regulariter dentato. 

 The toothed-wheel limpet, 

 The colour white and opaque. 

 From Sandwich — extreamly rare. 



HELIX. The deprelTed Snail. 



F I G, 17. 



HELIX Apertura patentiflima. 



The very wide mouth fnail. 



The colour white, tinged with pale red pellucid, 



From Sandwich and Reculver— very rare. 



It fomewhat refembles Mr. Pennant's Fig. 139, pi. 86, but is a fea fiiell flatter, thick, 

 and without tranlVerfc wrinkles. 



F I G. iS. 



HELIX Cornea quatuor anfraftibus apertura rotunda. 



The horn fnail of four fpires with a round mouth. 



The colooi' of horn pellucid, 



In a freih water Stream, near Faveriliam. 



FIG. 19. 



HELIX Umbilicata quatuor anfra6libus apertura fubrotunda. 



The umbilicated fnail of four f})ires with a roundifli mouth, 



The colour brown and opaque. 



From the fame place as N° i^. 



FIG. 21 



