[ ^3 ] 

 A R C A. The Ark. 



F I G. 8t. 



A R C A Oblonga ftrlata antice angulata. 



The oblong ftriated ark, with the forefide angulated. 



The colour opaque white. 



From Sandwich — not uncommon. 



Lin. S. N. p. 1 141, No. 171. Area Modiolus. 



C A R D I U M. The Cockle. 



F I G. 82. 



CARDIUM Striatum radiatum. 



The ftriated and radiated cockle. 

 The colour opaque white. 

 From Sandwich — common. 



This feems to refcmble the cardium edule, Lin. S. N. p. 1124, No. 90 ; but on com- 

 parifon will be found to differ from it. 



F I G. 83. * 



CARDIUM Subcordatum fubangulatum. 

 The truncated heart cockle. 

 The colour opaque white. 

 From Seafalter — very rare. 



Lin. f^. N.p. H23, No. 83. 



Dr Lifter'bH. C.Tab, 317, No. J 54, fomcwhat refembles this dell, but is not tranfverfeljr 

 ftriated. 



F I G. 84. 



