28 

 SOLEN VIRIDIS. 

 Tab. V, fig. 2. 



SPECIFIC CHARACTER. 



Shell elongated, straight; anterior end obliquely 

 truncated and slightly reflected ; posterior side nar- 

 rowed towards the end, which is rounded; dorsal 

 margin nearly rectilinear; hinge terminal, with one 

 tooth in each valve. 



SYNONYME. 



SoLEN VIRIDIS. Say, Journ. Acad. J^at, Sciencesy 

 vol. 2, p. 316. 



Cabinet of the Acad. Nat. Sciences, No. 1561 . 



OBSERVATIONS. 



This shell is fragile, and when young the epider- 

 mis is pale green, and highly polished, becoming 

 olivaceous with age, when it exhibits faint transverse 

 markings, in the manner of S. ensis. The anterior 

 extremity is somewhat reflected, and a slightly im- 

 pressed line crosses the valves, beginning at the ex- 

 tremity of the hinge margin ; between this line and 

 the anterior tip, the epidermis is darker coloured. 



Common on the southern coast. Say. I have re- 

 ceived it large and very perfect from Rhode Island, 

 through the kindness of Col. Totten. Dr. Morton 

 obtained a large specimen at Great Egg Harbour. 



