102 SHELLS. Class VI. 



Obfolitus. P, with one large firiated ear, with frr.ooth equal 



66. Worn. « u , • r i r j i i 



ihelis; eight cbiojete rays; or a dark purple 



color. 



A fmall fpecies three quarters of an inch long. 



Tab. Ixi. fig. 66. 



Lawis. P. with unequal ribbed ears ; the reft of the fliell 



67. Smooth. ■ , ,- 1 



; entirely Imootn. 



Very Cm all, 



Anglefea. 



Glaber. Lin. Syft. H46. No. 20I, 



63. Fur- 

 rowed. 



P. with a very thin fliell; fifteen faint rays-, 



equal ears. The inner fide of the ihelis marked 



with rays, divided by a fingle J ulcus. 



Anglefea. A fcarce fpecies. Small. 



OSTREJ. XIII. Its animal a Tethys. 



O Y S F R 



Shell bivalve, roughly plated on the outfice. 



Epulis, Lin. Syft. 114.8. No, 211. Faun. Suec. No. 2149. Lift. AngL 



69. Edible. tab. i\. f.g. 26. 



O. commonly of an orbicular form, and very 



rugged. A defcription of fo well-known a fhell 



q is 



