CARDIUM. COCKLE. 2\ 



5. Cardium Icevigatum. Smooth Cockle. 



Lister, pi. 332. f. 169 Pennant, pi. 54, lower fig.-* Da 

 Costa, pi. 13. f. 6 Dorset Cat. pi. 7- f. 6 Donovan, pi. 54 

 fFoorf, pi. 54. f. 1,2. 



Shell somewhat oval, much produced at one end, with 

 very numerous faint flat ribs, between which it is obscurely 

 striate longitudinally, and crossed by distant obscure 

 raised transverse lines, quite smooth at the anterior side, 

 covered with a yellowish-brown skin almost concealing the 

 markings, under which it is of a pale flesh-color 5 the 

 younger ones finely polished and marbled with whitish, and 

 pink or dull red ; inside smooth, glossy, with more or lets 

 of a pink hue, the margin strongly toothed : length two 

 inches and a half ; breadth two inches. 



Sandy shores of England and Ireland, v. v. 



6. Cardium elongatum. Lengthened Cockle. 



Montagu, p. 82. 



Shell flattish, somewhat oval, a little angular and elon- 

 gated on one side, with twenty-one faintly wrinkled c.rd 

 rounded ribs : color yellowish-white or pale rufous, with 

 sometimes red blotches on the elongated side which sre 

 vbible within ; inside yellowish-white 5 beaks not quite 

 central : diameter a quarter of an inch. 



In Salcomb bay, Devon : rare. v. ni. 



7- Cardium exiguum. Pigmy Cockle. 



Dorset Cat. pi. 2. f. 11. 



Cardium pygmaeum. Donovan, pi. 32. f. 3. 



Shell coarse, sometimes rather flattened and sometime,? 

 very convex, somewhat heart-shaped and produced at one 

 a, with about twenty ribs, which are tubercled to \vards 

 the shorter end and wrinkled towards the .margin; the 

 elder ones wrinkled all over ; strongly striate transverse!/ 

 5n the interstices : color dirty white or brown, often co- 

 vered with a dark skin : under the beaks a strong her/it - 

 (1 impression : inside smooth, white, often rafour, ^.t 

 t v ie angular side : length about half an inch; breadth nearly 

 63 much. 



V,'esteni coasts, and Dublin buy and Cove in Irelaiv.l. ;. y. 



S. Ca 



