Class VI. SHELLS. S3 



Its animal an Ascidia, SOLEN. 



A bivalve ; oblong •, open at both ends. RAZOR, 



At the hinge, a Tubulated tooth turned back, 



often double y not inferted in the oppofite 



fhell. 



* With the hinge near the end. 



Lin. Syft. 1 113. Faun. Suec. No. 213 1. Lift. Angl. tab.v* Siliqua. 



Jig. 37. 20. Pod, 



Lift. Conch, tab. 409. 



S. with a flrait fhell, equally broad, compreifed, 

 with a double tooth at the hinge, receiving another 

 oppofite ; and on one fide another tooth fharp 

 pointed, and directed downwards. Color olive, 

 with a conoid mark of an afh color, dividing the 

 ftiells diagonally •, one part ftriated lengthways, 

 the other tranfverfely. Breadth ufually live or 

 fix inches, fometimes nine. 

 Tab. xlv.ftg. 20. 



Lin. Syft. 1 1 13. Lift. Conch, tab. 410. Vagina. 



21. Sheath, 



S. with a fhell- nearly cylindrical, one end margi- 



nated ; the hinge confiding of a fmgle tooth in 



each fhell placed oppofite. Shell yellow, marked 



G 2 much 



