PLATE IV. 



Page. 



Onychocrinus pulaskiensis, n. sp 40 



Fig. 1. View showing column and part of arms. 

 Fig. 2. Azygou8 side of the same. 



Taxocrintjs wetherbyi, n. sp 41 



Fig. 3. Basal view, azygous side down. 

 Fig. 4. Lateral view. 

 Fig. 5. Summit view. 



Pterotocrinus wetherbyi, n. sp 44 



Fig. 6. Azygous side view. 



Fig. 7. Basal view, azygous side down. 



Fig. 8. Summit view. 



Fig. 9. View of another specimen, showing furrowed vault 



POTERIOCRINUS VAGULUS, n. sp 4li 



Fig. 10. Lateral view, azygous area to the lei r 

 Fig. 11. Opposite side of the same. 



Zeacrinus puxaskiensis, a. sp 47 



Fig. 12. Azygous side view. 

 Fig. 13, Opposite side of same. 



Zeacrinus durabiijs, n. sp 48 



Fig. 14. Azyyoas side view. 

 Fig. 15. Opposite side of same. 



Emperocrinus indianensis, n. ep 43 



Fig. 16. Basal view. 



Fig. 17. Azygous side view. 



Barycrinus Washington en sis, n. sp 49 



Fig. 18. Azygous side view. 

 Fig. 19. Opposite side of same. 



Cylicocrinus indianensis, n. sp 31 



Fig. 20. Basal view. 



Fig. 21. Azygous side view. 



Fig. 22. Lateral view. 



