468 ADDITIONAL NOTES. 



This specimen was collected from the Coralline Oolite at Settrington, near Malton, 

 whence several good specimens have been obtained ; the oolitic rock is here very fine, 

 and cuts almost as white as chalk. Coral banks are likewise very abundant in this locality, 

 and the fineness of the Oolite is probably due to the coralhne mud which abounded in the 

 vicinity of these AntJiozoa. 



