C 15 ] 
F I G. XVII. 
Valves thick, round, marked With concentric 
furrows. TKe fliell is deftroyed, 'b\it its plate rs 
fupplied by fpar. 
' Petiver* has given a'figure of a fhell very like 
this: he names it PeBunculus ]imericams cordaius^ 
fafciis cr(^is. He received it from Jamaica. 
F I G. XVIII. 
/ 
Oval: 'marked with concentric : beaks 
in the middle, fmall, liooked. 
Found on the fide c)f the road between Monk- 
ton-Farlyt and Farly-Wick; among a furprifing 
quantity of Broken ftieils. 
Fig. ig, 20, 21, and 22, agree in having'JJiells 
vj equal valves'; 'one fide truncated ; and fmall cars 
on each Jide the beaks. 
FIG. 
♦ Vol. I. tab. 25. Fig. 9. 
f About four miles call of BaVk, 
