47 



brown; (Iriatcd tranfverfely, each ftria turning longitu- 

 dinally acrofs the fliell ; towards the back a diagonal line 

 from the hinge to the oppofite end, that marks the turn 

 of the longitudinal ftrias; beneath the epidermis the fhell 

 is cinereous and white, with ftreaks of a purplifli hue: 

 hin?e fituate at one end: teeth in one valve finjile, with 

 a remote lateral lamina ; in the other valve two, with a la- 

 teral inclined tooth, correfpondingwith theoppofite lami- 

 nae. Length from hinge to margin an inch ; breadth eight 

 inches. 



This n^ell is common on mod of our fandy fliores, 

 found buried to the depth of a loot or more near low 

 water-mark; it frequently elevates one end a little 

 above the furface, and protrudes its body in fearch of 

 food; upon being didurbed it fuddenly recedes. This 

 place is known by a fmall depreffion on the furface. In 

 mai.y places it is fought after for food, by the common 

 people. 



2. 

 S. with a ftrait fub-cylindric fliell, in every refpe£l like Novacula. 

 the Siliqua except in the hinge, in which it is elfenti- 

 ally different, being furniflied with one flrong blunt cur- 

 ved tooth in each valve at one end, defiitute of lateral 

 laminae : thefe teeth turn contrary ways, and when clofed 

 clafp or hook into each other. This fpecies may pofTibly 

 have been confounded with the foreg-oins: from its exter- 

 nal fimilitude, for we do not find it noticed by any con- 



chologift. 



