PLATE HI. 



Glyptocystites multiporus (page 54). 



Figure la. The plates of the calyx spread out ; the dotted lines which extend from 

 the top to the bottom indicate the coarse of the arms. 

 1&. Plates of the genus Echino-encrinites, figured here for comparison. 

 d. Anterior view of a perfect specimen of G. multiporus. 



E. The left side of the same specimen. 



F. The dorsal or posterior side of another specimen. 

 c. The right side. 

 g. The apex, enlarged, 

 i. The base. 



n. A specimen with the column attached ; anterior view. 

 L. One of the rhombs enlarged. 

 g and k. Sections shewing the depth to which the partitions of the rhombs 



entered. 



