BIVALVES. TELLINA. 41 



American and Atlantic Oceans produce a great number. 

 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. 



TELLINA. Telkn. 



DIVISION I. Ovate and thickish. 



Gargadia Toothed. Inflata Inflated. 



R ugosa Wrinkled. Polygona Polygonal. 



Lingua-fells Cat's tongue. Lacunosa Marshy. 



Marginalis Margined. Gibbosa Gibbous. 



Virgata Tulip. Gari Varying. 



Interrupta Freckled. *Ferroensis Carnation. 



Angulata Angular. *Fragilis Brittle. 

 Obliqua Oblique. 



DIVISION II. Ovate and compressed. 



Triangularis Triangular. Coccinea Scarlet. 



Oblonga Oblong. Incarnata Flesh-colour' d. 



Spengleri Spengler's. Opalina Opaline. 



Foliacea Golden. Lanceolata Lance-shaped. 



Acuta Sharp-edged. Sanguinea Sanguineous. 



*Planata Substriated. Nivea Snowy. 



Strigosa Striped. Sulcata Sulcated. 



Lsevigata Smooth. Donacina Donax. 



Madagascariensis Madagascar. *Angusta Narrow. 



Radiata Radiated. Truncata Truncated. 



Pallescens Pale. *Punicea Flat-striated. 



Rostrata Beaked. *Depressa Depressed. 



Rufescens Reddish. *Fabula Semi-striated. 



Flavescens Yellow. *Tenuis Thin. 



Hyalina Glassy. Vitrea Transparent. 



*Inaequivalvis Inequivalve. *Striata Striated. 



*Trifasciata Three-banded. Balaustina Pomegranate. 

 Calcarea Chalky. 



