PLATE 77. 



FicT. 1. 340. 1. Glyptocrinus decadactylus. (P^g- 281.) 



1 a. A fragment of stone with two small specimens, preserving the tentaculated iingers. 

 1 b. Figure of a larger specimen, showing the character of the plates and their arrangement more distinctly. 

 1 c. The upper extremity or crown of the last specimen, showing the capital plates. 1 d. Same enlarged. 

 1 e. A portion of the surface enlarged, showing the form and diaracter of the plates, and the strong radiating 



ridges. 

 I/. An enlarged figure, showing the structure and arrangement of the plates as described (pag. 2S4, note). 



