MONOGRAPH OF THE EXISTING CRINOIDS. 



435 



879 



Figs. 874-880. — Side and cotbrino plates of various thalassometbids (drawings bt author). 874. 

 Paramktp.a GRAxn.ATA. 875. .Same. STii. Sami:. thiikk SACrri.i snow .v. S77. Samk, two srpri.E- 



MENTABY PLATES. 878. SaMB, SIDE PLATE VIEWED FROM INTEBIOB. 879. THALASSOUETBA TILLOSA. 



