

THE 



NATURAL HISTORY 



OF 



BRITISH SHELLS. 



M4SM4 



PLATE XXXVIL 



ARCA GLYCYMERIS. 



ORBICULAR ARK. 

 GENERIC CHARACTER. 



Bivalve, valves equal. Teeth of the hinge numerous, and inserted 



between each other. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Orbicular, concave, very finely striated transversely and longitudinally, 

 and variegated with zigzag marks. Margin crenated. 



Arca Glycymeris: testa suborbiculata gibba, substriata, natibus 



incurvis, margine crenato. Linn. Syst. Nat. 

 p. 1143. No. 181. 

 A 2 



