PLATE XLL 



FIG. I. 

 TELLINA IN^EQUIVALVIS. 



XJ NEQJJAL-VALVED TELLE??. 

 GENERIC CHARACTER. 



The hinge usually furnished with three teeth ; shell generally sloping 



on one side. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Oblong, one side much produced or beaked ; upper valve flat, lowef 



very convex. 



Tellina InvEquivalvis: testa oblongo-rostrata, valva altera plana. 

 Gmel. Lin. Syst. Nat. Conch. 3233. sp. 23. 



The Tellina inaqvivalvis is noticed by Gmdin as a native of 

 the Mediterranean and Norway seas, but has not been hitherto 

 described as a British shell by any author. It is generally admitted 

 by Conchologists that die species has been discovered on our shores, 

 and William Pilkington, Esq. of Whitehall, has very lately re- 

 ceived a specimen of it from the Guernsey coast, which he obligingly 

 favoured us with it to figure and describe, 



