100 
This Cardium is very distinct from any of the Genus 
that I know, yet its general resemblance to those figured 
in tab. 14 would have found it a place near them had E 
possessed it at that time, and now I have no British con- 
gener to place with it: my best specimen is full of Pyrites, 
and may fall to pieces, for which reason it was advisable 
to secure a remembrance of it. 
