112 CLEIOCEINUS. 



The only specimen being much flattened and poorly preserved, I have 

 only figured one side of it, which gives a general idea of its appearance, 

 with such surface details as can be made out. The opposite side, on 

 which but little of the calyx plates can be seen, shows the bases of the 

 free arms very distinctly part way around ; thirty-five of them can be 

 counted in about three-fifths of the rim on that side, which would be 

 about one-third of the total perimeter. This would give upwards of one 

 hundred arms in all. 



