_. Hinges of Briii/h Bivalve Shells. 159 



(hell, and one in the other. Both Da Coda and 

 Pennant have figured the infide of this Ihell, with- 

 out paying any attention to the teeth. Dr. Lifter, 

 hmvever, thought their arrangement too curious to 

 be pafled unnoticed. He has therefore engraved 

 them in his Hi/l. Conchyliorum^ and alfo in his Hijl, 

 An, Ang, 



SOLKN. 

 Siltqua, Linn. Syji. Nat. ed. Gmel. I. p. 3223. Penn. Br» ZooL 



No. 20. t. OfS. f. 20. Da Coji. Br. Conch, p. 285. /. 17. 

 yi 5. — Elem. Conch, t, 7. y^ 8. Lijl. Conch, i. 40 y. 



f' '^SS- — ^^ -^^S' ^' 5- y» 37- Chemn. Conch. 6. /. 4. 

 /. 29. Gault. I'ejl, t, 95.7; C. D. E. Knorr. Vergn. 6. 

 /. J, f, I, 



Tab. XIV. Fig. 9. 



The hinge of the Solen Siltqua is furnifhed with three 

 teeth : two thick ones in one valve receiving a la- 

 mina between them from the other. An edged pro- 

 du6iion from the teeth is continued down about the 

 third of an inch on each fide of the hinge, where it 

 terminates inwards in a rounded fhape. 



Da Cofta, in his Br. Conch, has defcribed the Solen Sili^ 

 guay but figured the S. incttrvatus of Dr. Solander. 

 Gmelin alfo has fallen into much the fame error, by- 

 quoting Lifter, Hiji. Conch, t. 413. A note of in- 

 terrogation, indeed, is very properly added, but no 

 reference is made to t. 409, f. 255, which is an exa<fl 

 copy of the true figure of the S. Siliqua, in the H^* 

 An. Ang. 



The hinge in the two fhells is the fame. 



Vagina. 



