MONOGKAPH OF THE EXISTING CRINOIDS. 



399 



Figs. 824-830. — Side and coveri.ng plates ok Monachomktra fkagilis (iibawings bv author). 824. !<ix 



CONSBCCTITB SIDE AND COVERING PLATES. 825. SAME. 826. SAME. 827. SiX CONSECUTIVE SIDE PLATBS 

 IN VENTRAL VIEW. 828. SiDE AND COVERING PLATE FRtJ.M WASE OF A PINNTLK. SHOWIXC RdCSnED ISt I.SION 

 INSTEAD OF PERFORATION. 829. INTERIOR VIEW OF SIDE PLATE. 830. THREE COVERING PLATE.S VIEWED 

 PROM INTERIOR. ALL X 100. 



