24 BIVALVES TELLINA. 



most commonly smooth. The interior margin is rarely 

 crenulated. 



The exterior of these shells varies materially, 

 some being- perfectly smooth and polished, whilst 

 others are covered with minute striae and undulations; 

 and occasionally the whole surface is beset with 

 imbrications or scales. 



Some species of the Tellina are remarkable for their 

 beautiful radiations, the colors of which are rarely to 

 be equalled in any of the other genera. 



The Tellinae are produced in abundance in almost 

 every sea; the rivers, pools, ponds, and marshes 

 of Europe and America supply only a few. The finest 

 varieties are found in the pearl fisheries of Ceylon. 



The Tellina takes its name from reAftw. 



Division I. — Ovate and thickish. 



Scientific Name. Locality. Common Name. 



Gargadia Indian Ocean Toothed Tellen 



Rugosa Otaheite, W. Indian Seas Rugged • • do • • 



Lingua Felis Indian Ocean Cat's tongue do • 



Marginalis Coasts of China Margined • • do • - 



Virgata Amboyna, Ceylon, Bay of 



Naples, Moluccas • • • 



Interrupta ...... West India Islands . • ■ • • 



Angulata Tranquebar, Mediterra- 

 nean 



Inflata 



Polygona Tranquebar, Naples • • • • 



Lacunosa Coast of Guinea 



Gibbosa 



Gari Amboyna, Molucca Isles, 



China Varying •• do 



Ferroensis Britain, Ferroe Isles, Nor- 

 way Carnation • do 



