PLATE LXIII. 



Pectunculus minimus laevis, intus argenteus, cardlne serrato. Silver 

 Cockle. Mus. Petiv. p. 87. No. 84^1. et Gazop. 

 tab. \l.fig. 



Glycemerls Argentea parva subtriangularis, laevis, intus argentea. 

 Da Costa. Br. Conch, p. 170. sp. 13. tab. 15i. 

 jig. 6. right hand. 



This kind is found in great abundance on many of our shores, as 

 Kent, Essex, Sussex, Devonsliire, &c. and is also met with at Scar- 

 borough. 



When these shells arc fresh and perfect, says Da Costa, the outside 

 is of an olive green, with some few transverse wrmkles ; but when 

 rubbed or worn are quite white, and almost smooth. I'he inside is 

 ©f a fine silvery colour. 



