162 TELLINA. 



from the apex to the margin. It is shaped like a Donax, 

 and is very minutely striated transversely : the hinge is 

 placed towards one end, and has two teeth (one of which 

 is bifid) in one valve, and a single tooth in the other. It 

 is about half an inch long, and an inch broad. 



This species, which was first noticed by Gualtieri, in- 

 habits the Mediterranean. It is also a British shell, 

 and was found on Sandwich Flats, by Mr. Boys. Dr. 

 Pulteney has since met with it at Weymouth, and Mr. 

 Montagu on the Cornish and Devonshire Coasts. Is 

 not this shell figured by Lister in pi. 385 ? 



TRUNCATED TELLEN. 



32. Tellina truncata. T. testa ovali, compressa, substriata ; parte an- 



tica truncata, suturaque distincta. Linn. Gmel. p. 3234. 

 Shell oval, compressed, somewhat striated, truncated before. 



This species is admitted on the authority of Gmelin, 

 but from his own confession of the resemblance it bears 

 to the T. incarnata, of Linnaeus, there is reason to be- 

 lieve that it may prove a variety only of that shell. 



It inhabits Java. 



TRIANGULAR TELLEN. 



33. Tellina trilatera. T. testa plana, anterius truncata, flava, vertice 

 albo; cardinis dente primario et laterali solitariis. Linn. Gmel. 

 p. 3234.* 



Shell flat, yellow, and truncated before ; umbo white ; hinge with a sin- 

 gle primary and lateral tooth. 



Chem. Conch. 6. pi. 10. f. 85. 



A yellowish shell, concentrically striated, except 

 about the apex, which is very smooth, and white ; the 





