PLATE XXVI. 
PENTACRINUS ALTERNICIRRUS, 0. Sp. 
Diam. Page 
Fig. 1. The disk, : : . . : 5 exes 77 
Fig. 2. The anal interradius, enlarged, ; ; a as as 
Figs. 3,4. Inner and outer surfaces of the two outer radials with the 
distichals and palmars attached, . : : See as 50 
Figs. 5,6. The third or axillary radial, : : 3 OS 5 
Fig. 5. Proximal face. 
Fig. 6. Distal face. 
Figs. 7,8. The second radial, . ? : ; : * =Xeo 5 
Fig. 7. Proximal face. 
Fig. 8. Distal face. 
Fig. 9. The lower face of a first radial, with one basal remaining 
attached, . ‘ : ; : : a 293 
Fig. 10. Distal face of a first radial, : ee ne 9 
Fig. 11. The calyx from below, : : , ; UPS 33 
Fig. 12. Side view of a nodal and infra-nodal joint in their relative 
positions, . : : : : 3 ee oe 13 
Figs. 13, 14. Upper and lower faces of a nodal joint, . . x 4 323 
Figs. 15, 16. Upper and lower faces of the infra-nodal joint, —. tka oe 13 
Fig. 17. Faces of internodal joints, ‘ : , : a Na 12 
Fig. 18. Various stages in the development of internodal joints, Lae 12 
