: \ 
NEEL CHa SeRS Se . Neng SS 
ate «me Reh Sacer 
= | Se SS See 
837 
GENERAL INDEX. 
Water pores, 123. 
Xenocrinus, 67, 173, 175, 182. 
—— Baeri, 183. (PI. IX, figs. 5a—d.) 
—— penicillus, 183. (Pl. IX, figs. 6a, b.) 
Zeacrinus, 52. 
Zophocrinus, 146. 
Vault, 29,305, 121 148; 
is a modified disk, 124, 149. 
Ventral disk, 33, 35, 95, 118, 121, 150, 154. 
(Pl. III, figs.. 1-25; IV, figs. 1-5.) 
Ventral sac (tube), 35, 114, 123, 157, 161. 
(Pl. VII, figs. 1-12.) 
