PLATE XXXir. 



FIG. II. 

 CARDIUM CILIARE. 



I FRINGED COCKLE. 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Shell roundish, inclining to heart shape. Ribs longitudinal, trian- 

 gular, and beset along the ridges with thin spines. 



Cardium Ciliare : testa subcordata, sulcis elevatls triquetrls : 



extimis aculeato ciliatis. Linn. Si/st. Nat. 



p. 1122. 80. 

 Pectunculus albus exiguus, muricibus insigniter exasperatus. WaU 



lace Orkn. p. 44. 

 Pectunculus minimus triquetrus Essexiensis. Peiiv. Gaz. tab, 93. 



fg. 11. 

 Cardium parvura tenue, costis triquetris aculeatis. Parvum. Da 



Costa Brit. Conch, p. 177. 17. 



Pennant describes this species as having eighteen ribs, and Da Costc^ 

 about fifteen ; we have specimens that agree, in this respect, with 

 the descriptions of both authors. The shell figured by the firft is the 

 size of a hazel nut ; the latter says, he has never seen it larger than a 

 nutmeg : a worn shell, with the habit of this species, that has been 

 found since, is full twice that size. 



'This delicate shell is found on several of oyr coasts, as Cornwall, 

 Dorsetshire, and Devonshire ^ alfo in the Orkneys. 



