OSTREA. 275 



Ostrea Folium. Linnaus Syst. Nat. p. 1148. Born Mus. 

 p. 112. Chemnitz, viii. p. 21. t. 71. f. 662 to 666. 

 Schroeter Einl. iii. p. 36l. Grnelin, p. 3334. 

 Ostrea. Enc. Method. 1. 184. f. 10 to 14. 

 Rumphius, t. 47. f. A. Petiver Amb. t. 20. f. 1. Argen- 

 ville, t. 19. f. F. Klein Ost. t. 8. f. 22. Knorr, i. t. 23. 

 f. 2. Regenfuss, ii. t. 3. f. 23. Favanne, t. 45. f. D 4. 

 Inhabits the coasts of Amboyna. Rumphius. Jamaica. Lin- 



naus. Molucca Islands. Chemnitz. Naples. Ulysses. 

 Shell about an inch and three quarters long, and an inch and a 

 quarter broad ; of a pale violet, tawny, or straw colour, and 

 the inside glossy ; the upper valve is turgid along the back 

 from the hinge to the margin, and plaited on the sides ; the 

 other valve is flatter, and more or less grooved in the middle. 



plicata. 63. Shell parasitical, with obtuse longi- 

 tudinal plaits and transverse imbricated wrin- 

 kles ; lower valve rather less, and flatter than 

 the upper. 



Ostrea plicata. Chemnitz, viii. p. 34. t. 73. f. 674. 



Ostrea plicatula. Grnelin, p. 3336. 



Ostrea sericea. So lander's MS S. Portland Cat. p. 189. 



lot 4026.? 

 Ostrea, No. 106. Schroeter Einl. iii. p. 370. 

 Gualter, t. 104. f. A. 



Inhabits the West Indies, the Mediterranean, and the shores 

 about Cadiz. Chemnitz. 



Shell from two to four inches long, and varying much in shape 

 as well as size ; the colour is generally grey tinged with vio- 

 let, and sometimes white, with reddish or bluish streaks. It 

 is not a well defined species. 



sinensis. G4. Shell sub-ovate, coarse, strongly 

 wrinkled transversely, and the sides obtusely 

 plaited ; lower valve larger, and slightly pro- 

 duced at the summit. 



Ostrea Sinensis. Grnelin, p. 3335. 



Ostrea falso sic dicta diluviana. Chemnitz, viii. p. 26. t. 72. 

 f. 668. 



Ostrea, No. 102. Schroeter Einl. iii. p. 368. 



Ostrea. Enc. Method, t. 184. f. 1. 

 Inhabits the coasts of China. Chemnitz. 

 Shell about four inches long, and rather more than three and a 



half broad ; of a purplish brown colour, and whitish on the 



