Jourii. Mar. BioJ. Assoc. 



Vol. nil. 



Fig. 1. 



Plate IX. 



M. 14a. S. 24" W, Edd., 20 miles. 



Hard yellow chalk, surface iincly grouiirl Ijut not polislied. 

 Derived inclusion on left. 



xU. 



Fic. 2. 



M. 14a. S. 24 W. Edd., 20 miles. 

 Hard yellow chalk. 

 Ordinary light, x 97^. 



To face p. lol. 



