PLATE L. 



SOLEN ENSIS. 



SCYMETAR. 



GENERIC CHARACTER. 



Bivalve, with equal valves, oblong, open at both ends. At die 

 hinge a subulated tooth turned back, often double ; not inserted in 

 the opposite shell — Animal an Ascidia. 



SPECIFIC CHARACTER 



SYNONYMS. 



Shell bowed like a Scymetar, equally broad and compressed. 

 The hinge beset with two teeth in each valve. 



Solen ensis : tefta lineari fubarcuata, cardine altero bidentato. 



Linn. Syst. Nat. p. 1114. No. 35. 

 Solen alter curvus minor. List. App. H. An. Angl. p. 20. — App. 



in Goed. p. 36. tab. 2. Jig. 9. — Solen curvus. 



Hiji. Conch, tab. 411. fig. 251. — Solen ensis, 



Scymetar. Penn. Br. Zool. No. 22. tab. 45. 

 Jig. 22. 

 Solca subarcuatus. Ensis. Da Costa. Br. Conch, p. 237. sp. 60. 



