PLATE III. 



Page. 



Rhodocrinus douglassi, n. sp 39 



Figr. 1. Azygous area on the left. 



Rhodocrinus bozemanbnsis, n. sp 40 



Fig. 2. Lateral view. 



Rhodocrinus bridgerensis, n. sp 41 



Figr. 3. Lateral view. 



Dichocrinus bozemanensis, n. sp 44 



Fig. 4. Azygrous view. 



Platycrinus bozemanensis, n. sp 42 



Fig. 5. Lateral view. 



Platycrinus sharonensis.ii. sp 42 



Figr. 6. Basal view. 



Figr. 7. Lateral view of basal plates. 



Platycrinus bridgerensis, n. sp 43 



Figr. 8. Azygrous view. 



Talarocrinus patei, n. sp 44 



Fig:. 9. View opposite azygrous area. 



Figr. 10. Azygrous view of same. 



Figr. 11. Azygrous view of a smaller specimen. 



Figr. 12. Opposite side of same. 



Stereocrinus indianensis, n. sp 38 



Figr. 13. Basal view of calyx, showing all the plates. 



Fig. 14. Lateral view. 



Fig. 15. Basal view of another specimen. 



Pholidops greenei, n. sp 48 



Fig. 16. Dorsal view. 

 Fig. 17. Ventral view. 

 Fig. IS. Profile view. 



Fig. 10,20.21. Same magnified two diameters. 



AMPLEXUS ROCKFORDENSE.n. sp 53 



Fig. 22. Lateral view. 

 Fig. 23. End view. 



Crania chesterensis, n. sp 4T 



Figs. 24, 25. View of specimens attached to bryozoans. 

 Fig. 26.* View of a specimen attached to a shell. 



Palaeaster wykoffi. n. sp 46 



Fig. 27. View of ventral side: 



