TELLINA. 165 



Inhabits the Northern Ocean, and is found, though 

 rather sparingly, on the shores of Great Britain. Single 

 valves occur at Sandwich ; at Tenby it is not uncom- 

 mon; it has been found at Poole and Weymouth 

 in Dorsetshire, at Scarborough in Yorkshire, and on 

 several parts of the Coast of South Devonshire. Lister 

 discovered the species. 



BLUSHING TELLEN. 

 PL 42. /. 1. Mrs. Mawe. 



37. Tellina operculata. T. testa incequivalvi, oblonga, rosea, subtiliter 

 decussation striata; valva altera convexa, altera fere plana. Linn. 

 Gmel. p. 3235. 



Shell of unequal valves, oblong, and rose-coloured, finely decussated ; 

 one valve convex, the other almost flat. 



Chem. Conch. 6. pi. 11. f. 97. Knorr Vergn. 6. pi. 12. f. 1. 



A pale rose-coloured shell, covered, when recent, with 

 a green epidermis, a portion of which often adheres to 

 the margin; the surface is very finely striated, both 

 transversely and longitudinally ; the beak is produced 

 and angular, the valves are dissimilar, one being convex, 

 the other nearly flat, and somewhat smaller; the mar- 

 gins are flexuous and acute. The inside is rosy, and 

 the hinge has two teeth (one of which is notched) in one 

 valve, and one in the other ; there are no lateral teeth. 

 Length about an inch and a half, breadth three inches. 



Inhabits the Indian Ocean, but is a rare shell. 



