PLATE XXI. 



Pentacrinus wyville-thomsoni, Jeffreys. 



Fig. 1. A third or axUlary radial, 

 a. Distal face, 

 h. Side view, 



c. Dorsal view, 



d. Proximal face, . 



e. Ventral surface. 



Fig. 2. A second or axillary distichal, 

 a. Distal face, 

 h. Side view, 



c. Dorsal view, 



d. Proximal face, . 



e. Ventral surface. 



Fig. 3. A first distichal, 



a. Ventral surface, 



b. Proximal face, . 



Fig. 4. A first brachial, 



a. Ventral surface, 

 h. Proximal face,-. 



c. The proximal face of another specimen, 



Fig. 5. A second radial, 



a. Distal face, 



h. Ventral surface, 



c. Proximal face, . 



Fig. 6. A first radial, . 



a. From beneath, . 

 1). Side view, 



c. From above, . 



d. Distal face. 



Fig. 7. An isolated basal, 



a. From beneath, . 

 h. Side view. 



Diam. Page 

 X 10 313 



9 

 38 



50 



X 10 



X 10 



X 10 



X 10 



X 10 



X 10 



313 

 9 



38 



50 



313 

 38 



38 



38 



313 

 50 



313 

 125 

 125 

 125 

 9 



313 

 293 

 125 



