OSTREA. 255 



St. John in the West Indies. Chemnitz . Coromaudel. 

 Humphreys. 

 Shell varying in size from two to five inches, and the length and 

 breadth are nearly equal; the colour is most commonly red- 

 dish brown both inside and out, but is sometimes slightly 

 mottled with white; young shells have the ribs nodulous,°and 

 as they get older the nodules increase in size, and at length 

 open on the side next the margin, so as to form large remote 

 vaulted scales. 



pes-felis. 18. Shell oblong, with about eight con- 

 vex ribs, longitudinally striated, and slightly 

 wrinkled transversely ; one of the auricles 

 minute. 



Ostrea Pes-felis. Linnccus Syst. Nat. p. 1146. Schroe- 



ter EM. iii. p. 309. Gmelin, p. 3323. 

 Ostrea elongata. Bom Mas. p. 103. t. 6. f. 2. 

 Pecten Pes-feiis. Chemnitz, vii. p. 312. t. 64. f. 612, and 



t. (55. f. 6 13. 

 Bonanni Rec. 2. f. 7., and Kirch, f. 8. 

 Inhabits the African Seas. Linnccus. Coasts of Barbary. 



Chemnitz. Mediterranean. Humphreys. 

 Shell about an inch and a quarter long, and an inch broad ; ra- 

 ther thin and pellucid, and generally of a pale reddish brown, 

 with darker veins and spots ; it is somewhat wedge-shaped, 

 and besides the longitudinal ribs and stria, it is marked trans- 

 versely with minute scaly wrinkles; one of the auricles is four 

 times as large as the other. 



sulcata. 19. Shell sub-orbicular, compressed, with 

 about eleven prominent, convex, transversely 

 scaly ribs, and striated longitudinally. 



Ostrea sulcata. Born Mas. p. 103. t. 6. f. 3, and Vign. at 



p. 97« f. b. 

 Ostrea histrionica. Gmelin, p. 3326. 

 Ostrea, No. 8. Schroeter Einl. iii. p. 325. 

 Pallium Sannionis. Chemnitz, vii. p. 313. t. 65. f. 614. 

 Bonanni Rec. and Kirch. 2. f. 14. Knorr, iv t 12 f % 

 Enc. Metk. t. 210. f. 4. 



Inhabits . 



Shell about an inch long, and the length and breadth are equal ; 

 it is yellowish, or sometimes rose-coloured, and prettily spot- 

 ted with dark brown on the ribs ; the auricles are both rather 

 large, and nearly equal, and the margin is strongly plaited. 



