[ 24 ] 



F I G. 84. 



CARDIUM Subcordatum antice muricatum. 



The heart cockle, with the front muricalcd, 



The colour opaque white. 



From Shepey ifland — not uncommon. 



F I G. 85. 



CARDIUM Striatum apici"bus reflexis. 



The fmooth cockle with refle^led beaks, 

 The colour opaque brown. 

 From Sandwich — not common. 



F I G. 86. 



CARDIUiM Lasve apice minuto. 



The fmooth fmall beaked cockle, 



The colour femipellucid, pale red and glofly. 



From Shepey Ifland — rare. 



The title of cardium to this and the precedent is doubtfully given. 



L E P A S. The Acorn Shell. 



F I G. 87. 



L E P A S Balanus ftriatus apertura obliqua. 



The flriated acorn fliell, with an oblique aperture, 

 The colour li^ht brown. 



From Sandwich, on the roots of fea-wceds -, the finefl: fpecimens on 

 lobfters — not uncommon. 



APPENDIX. 



