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 striz 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 Telling are produced in abundance in almost 
every sea; the rivers, pools, ponds, and marshes 
of Europe and America supply only afew. The finest 
varieties are found in the pearl fisheries of Ceylon. 
The Tellina takes its name from reXctw. 
Division I.—Ovate and thickish. 
Scientific Name. Locality. Common Name. 
Gargadia ------- Indian Ocean ---+++++++ Toothed Tellen 
Rugosa ---+--+-+- Otaheite, W. IndianSeas Rugged -- do -- 
Lingua Felis ---. ITndian Ocean ------++++- Cat’stongue do - 
Marginalis ----- Coasts of China -------- Margined-- do - 
Virgata +-..---- Amboyna, Ceylon, Bay of 
Naples, Moluccas ---: Striped ---- do -- 
Interrupta eeeeee West India Islands ----- Fryeckled -- do -- 
Angulata »--.--. ‘Tranquebar, Mediterra- 
NCAN “so + celce cereus se Angular So) lavou 
Inflata -++++-+e olesieieln pa a ieiele sitar) dal latale Inflated -- do-- 
Polygona ---+++- Tranquebar, Naples ---- Polygonal- do -- 
Lacunosa --+++-- Coast of Guinea -+++-+-- Marshy --+ do -- 
Gib bose {eis a/oie*)+ 1) (alse. oles oiaiole ehee == Gibbous -- do -- 
Gari --++-+++-++- Amboyna, Molucca Isles, 
Ghinaiveioe cuekewcrcs Varying -- do +> 
Ferréensis «+++:- Britain, Ferroe Isles, Nor- 
WAY + eereccccccsscece Carnation « do -- 
