( ABDIUM.— Plate IV. 



The broad Cockle. Shell transversely ovate, rather de- 

 pressed, very inequilateral, anterior side very short, 

 a little gaping ; radiatcly ribbed, ribs about forty in 

 number, very close-set, flat, faintly impressed down 

 the middle with a single stria which gives root to a 

 bristly epidermis ; ribs armed with very fine shaq) 

 scales towards the margins ; whitish, variously stained 

 with yellowish brown. 



Born, Test. Mus. Cses. Vind., pi. 3. f. 9. 



Had. Island of Mindoro, Philippines (found in sandy mud 

 at the depth of four fathoms) ; Cuming. 

 This species may be recognised by its very inequilateral 



growth. 



Species 22. (Mus. Cuming.) 



Cardium edule. Card, testa ovato-cordatd, vlx obliqitd, 

 radiatim costatd, costk ad senia et vlglnti, noduloso- 

 crenulatis; albldd,ferriigliiei)-fuxirsceiitepalUdt: tinctd; 

 intus alba marglne postico rubido-fusco. 



The eatable Cockle. Shell ovately cordate, slightly 

 oblique, radiatcly ribbed, ribs about six and twenty 

 in number, nodulously crcnulated; whitish, faintly 



tinged with rusty brown; interior white, poster 



edge reddish-brown. 

 LinntEUS, Syst. Nat. (Gmelin edit.), p. 3252. 



Variety. Cardium ghiucum, Bruguicrc. 

 Hob. Seas of Europe. 



This is the common eatable Cockle of our market, 

 highly esteemed by the generality of mollusk-epicures. 



Species 23. (Mus. Cuming.) 



Cardium fragum. Card, testa svbcordatd, latere postico 

 plano-angulato, radiatim costatd, coMs ad tribus et 

 trlginta, coufer/ii, tuberculin xijiannnsis parvls hmatls 

 creberrime armiilis ; strumineo-alblcante. 



The wniTE strawberry Cockle. Shell somewhat cor- 

 date, posterior side flatly angulated, radiatcly ribbed, 

 ribs about three and thirty in number, close, armed 

 with small thickly set half-moon scale-like tubercles ; 

 straw-tinged white. 



LiNNiEUS, Syst. Nat., p. 1123. 



Ilab. China, and the Philippine and Pacific Islands. 



Found abundantly in the Eastern Hemisphere, and well 



known to early writers as " The wliite Strawberry." 



