PLATE 77. 



Fig. 1. 340. 1. Glyptockinus decadactyltjs. (Pag- 281.) 



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

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

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

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



ridges. 

 If. An enlarged figure, showing the structure and arrangement of the plates as described (pag. 284, note). 



