OSTREA. 269 



Shell about an inch and a half long, and the breadth is one or 

 two lines more ; the colour is white, with pale reddish brown 

 spots, or sometimes pale brown with white spots ; die up- 

 per or flattest valve has about twenty-eight, and the lower 

 thirty-two ribs. 



### Yalves more gibbous on one side than on the 



other. 



flavicans. 48. Shell nearly equivalve, gibbous, 

 with about eight striated ribs, and the mar- 

 gin rounded on one side. 



Ostrea flavicans. Linntzus Syst. Nat. p. 1147. Gmelin, 

 p. 3331. 



Inhabits the Southern Ocean. Linntzus. 



Linnaeus has described this shell to be rather oblique, with one 

 of the auricles very short ; colour white, variegated with 

 brown and red, and the inside white with yellow rays. 



fasciata. 49. Shell ovate, gibbous, with about 

 twenty narrow transversely wrinkled ribs, 

 and the interstices striated longitudinally ; 

 hinge oblique. 



Ostrea fasciata. Linntzus Syst. Nat. p. 1147.? Born Mm. 

 p. 109. t. 6. f. 7. ? Schroeter Einl. iii. p. 320. Gmelin, 

 p. 3331. 

 Ostrea hians. Solanders MSS. 

 Ostrea tuberculata. Oiivi Adriat. p. 120. ? 

 Pecten inflatus. Chemnitz, vii. p. 346. t. 68. f. 649 «• 

 Pec ten fragilis. Montagu Test. Supp. p. 62. 

 Lister Conch, t. 177- f. 14. Qua Iter, t. 88. f. FF. Fa- 

 vanne, t. 54. f. N 2, and N 3. Em. Meth. t. 206. f. 5. 



Inhabits the Southern Ocean. Linntzus. Coasts of Barbadoes. 

 Lister. Guinea and the West India Islands. Chemnitz. 

 Mediterranean. Solander. Cape of Good Hope. Hum- 

 phreys. Devonshire. Montagu. 



Shell about seventeen lines long, and one inch broad ; white, 

 slightly ventricose, and gaping considerably at one, and a 

 little at the other end ; the auricles are equal and very small. 

 Linnaeus has erroneously referred to Gualter, t. 74. f. E. and 

 his short description is almost equally applicable to some 

 other species. From Montagu's description, I think there 



