PLATE LXIII. 



Pectunculus minimus laevis, intus argenteus, cardine serrato. Silver 

 Cockle. Mus. Petiv. p. 87. No. 841 . et Gazop. 

 tab. 11. Jig. 



Glycemeris Argentea parva subtriangularis, laevis, intus argentea. 

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

 Jig. 6. right hand. 



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

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

 borough. 



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

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

 rubbed or worn are quite white, and almost smooth. The inside is 

 of a fine silvery colour. 



