Dec., I860.] ELLIOTT SOCIETY. 39 



Within, for about a third of the shell near the beaks, the surface is rough, 

 and pale yellow, the rest is white, with irregular concentric lines, crossed by 

 obscure longitudinal striae, with two irregular flattened ribs running obliquely 

 from the beaks to the basal margin about a quarter of an inch from the poste- 

 rior tij). 



Cardinal teeth small, lateral teeth none, a flat projection from the beaks, 

 tmder the ligament takes the place of the posterior lateral teeth. 



Great&st diameter a little more than an inch. 



This shell has been in my Cabinet over thirty years, believing it to be new, I 

 sent it to ^Ir. Say, remarking its general resemblance to robust specimens of 

 " T. tenuis'' of Euroj^e. He retui-ned the specimen without a name, stating 

 that he had retained a drawing and description for further examination ; this 

 tigiu'e was subsequently pubhshed, "^ith the name " 2\ tenuU " attached to it, 

 but no description, See Binn. Ed. &ri/, pfige 229. 



As the shell is certainly distinct from 2'. tenuis, it is necessary to name it. 



It is very rare, I have seen but the single specimen, which I found upon the 

 beach at SuUivan"s Island, So. Ca. 



12. Tellina eupareia, n. sps. 



Shell oblong-ovate ; beaks moderately prominent, behind the middle ; ante- 

 rior side regularly rounded ; posterior nai-rowed, the point irregularly trunca- 

 ted, and much bent to the right ; posterior fold distinct on both valves ; white, 

 pohshed, not compressed ; with close concentric striae, crossed by very delicate 

 obsolete lines, only observed with the glass. 



Lateral t^eth more robust than usual. 



This is a very pretty shell, a little over an inch in its longest diameter, very 

 rare. I found tins smgle specimen at SnUivan's Island in 1835, without the 

 animal, but perfect. 



13. Tellina athroa, n. sps. 



Shell ovate-triangular, dull white, without pohsh, the lines of growth mark- 

 ing it with concentric ridges ; beaks rather prominent, behind the middle ; 

 anterior side broad, rounded ; posterior a Httle compressed, bent to the right, 

 narrow ; the line from the beak to the base straight, the slightly truncated 

 point being made irregular by the termination of the posterior projecting fold ; 

 interior polished, with closely set obsolete rays ; lateral teeth prominent. 



This I supposed to be a very rare sheU, I have had a single valve from Sulli- 

 van's Island beach for many years, but Mr. Stimpson has recently dredged de- 

 tached valves at Beaufort, No. Ca. , where he says it is not uncommon ; he did 

 not get a perfect specimen. 



The general appearance is very like the figure of Tellina Martinicensis of 

 d'OKBiG., but our shell is of three times its size, and is less bent and flatter in 

 proportion. 



