Hinges of Britj/h Bhahe Shells. i C / 



verrucofa, Linn. %?. Nat. ed. Gmel. I. /. 3269. Penn. Br. Zool, 



n. 48. /. 54. / 48. Da Cojl. Conch, p. 185. /. 12, 

 /. I . r . Vijl. Conch, t. 284./. 1 22. Gault. TcJJ. t. 75. 

 /. H. Borlafe Cornw. p. 278. /. 28./ 32. 



Tab. XVII. Fig. 5, 6. 

 This hinge is fet with two flrong ere6l teeth, near 

 the beak, in each valve, befides another which runs 

 in the diredicn of the cartilage. 



Gallina. Linn. Syji. Nat. ed. Gmel. i. p. 3270. Da Coft. Br. Conch. 



p. 191. /. 12. f. 2. 1. Lift. Conch, t, 282. f. 120. 

 /. li^S'f' 13^' ^f^orr. vergn. 5. /. 14.7^ 2 — 5, Chemn. 

 Conch. 6. /. 30,/. 308, 310. 



Tab. XVir. Fig. 7, S. 

 One valve is furnifhed with three teeth, the middle 

 one thick and triangular, broad at the bafc, and the 

 upper angle feated direcElly under the beak of the 

 ihell. Of the twcr-rrther teeth, one is plate-like, 

 and runs in the dire6lion of the cordiform depref- 

 fion, whilft the other, much thicker, pafles fiom the 

 beak towards the cartilage. The other valve differs 

 / , .. in having a middle tooth lefs triangular, and fitu- 



ated obliquely. In the room of the plate-like. 

 tooth there is one much more fubffantial. 



exoleta, Linn. Syft. Nat. ed. Gmel. i. /►• 3284. Pemi. Br. ZooL 



No. 49 /. 54. /. 49. j1. t. 56. /. 49 . Da Coft. Br. Co7ich. 

 p. 187. /. 12./ 5. 5. Lip. Conch, t. 292./ 128. Gault^ 

 Tejl. t, j$.f.F. Chemn, Conch, t, 38./^ 402. 404.. 



Tab^ 



