56 MYA. 



rather drawn out on one side, strong, transversely striated, 

 and covered with a green epidermis ; part of the margin of 

 one of the valves projects over the corresponding part of the 

 other, so as greatly to resemble a lip ; the hinge has a solid 

 projecting tooth in one valve, which is somewhat spoon- 

 shaped, and fits into a triangular cavity in the opposite valve. 



*### Ji\ n g e toothless, with a conical-rounded hollow 

 for the reception of the cartilage. 



vulsella. 38. Shell tongue-shaped ; hinge termi- 

 nal, toothless, with a conical-rounded hollow 

 for the reception of the cartilage. 



Mya vulsella. Linnceus Syst. Nat. p. 1 J 13. Born. Mus. 



p. 22. Chemnitz, vi. p. 24. t. 2. f. 8 to 11. Schroeter 



Einl. ii. p. 609. Gmelin, p. 3219. Barbut Verm. p. 



18. t. 2. f. 3. 



Ostrea vulsella. Solander's MSS. Portland Cat. p. 25. 



lot. 568. 

 Vulsella lingulata. Lamarck Syst. des Animaux, p. 133. 

 Ostrea. Enc. Method, t. 178. f . 4 and 5. 

 Lister Conch, t. 1055. f. 10. Rumphius, t. 46. f. A. Pe- 

 ttier Amb. t. 19. f. 1. Gaulter, t. 90. f. H. Knorr, 

 v. t. 2. f. 1 to 3. 

 Inhabits the coasts of Amboyna. Rumphius. Tranquebar. 



Chemnitz. 

 Shell varying in length according to its age, from one and a 

 half to five inches, and the breadth is about one third, or 

 one fourth of the length ; the colour is pale yellowish brown, 

 with darker longitudinal stripes ; the valves are rather flat, 

 gaping, and finely striated transversely. It has hardly any 

 better claim to be placed among the Ostreas than the Myae, 

 and I have therefore retained it in the place which Linnaeus 

 has assigned it ; on the contrary, Mya perna belongs pro- 

 perly to the Mytili, and Linnaeus has himself expressed a 

 doubt in the Sy sterna Naturae, whether it should not be re- 

 moved to that Genus. 



