PLATE XCIL 



MYA TRUNCTATA. 



TRUNCATED CAPER 9 



GENERIC CHARACTER. 



Animal an ascidia. Shell bivalve, gaping at one end. The hinge 

 for the most part furnished with a thick, strong* broad tooth, not 

 inserted into the opposite valve. . 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Shell roundish, one end trunctated or abrupt. Tooth projecting 

 and obtuse. 



Mya trunctata: testa ovata posterius trunctata, cardinis dente 

 antrorsum porrecto obtussissimo. Linn, a* 

 Gmel. Syst. Nat. T, I. fig, 6. p, 3217. 



Concha laevis, altera tantum parte clusilis, apophysi admodum pro- 

 minente lataque prasdita. List. H. An. Angl. 

 p.l9U tit. 36. tab. 5. fig. 26. 



