PLATE IV. 



Paue 



PoTEKIOCRINUS BLAUII, n. 8p .- *')} 



Fig. 1. AzygouB eMe view. 

 Fig. 2. Opposite side view. 



POTERIOCRINU3 ALTONENSIS, tl. 8p 62 



Fig. S. Calyx and arms; azygouB Bide on the right. 

 Fig. 4. Opposite side of same. 



P0TER10CaiN[T8 BROADQEADI, H. Sp 63 



Fig. T. Azygous side view of calyx. 

 Fig. 8. Opposite side of same. 



PorERIOCHINUS SAMPSONI, D. Sp '. 65 



Fig. 9. . Azygoue side view of calyx. 

 Fig. 10. Opposite side of same. 



Zeacrinus blairi, n. sp 66 



Fig. 5. View of nzygous side. 

 Fig. 0. Opposite view of same. 



Cyathockinus blaihi, n. sp ^ 67 



P^ig. 11. Basal view, azygous side up. 

 Fig. 12. Azygous side view. 

 Fig. 13. Basal view of another specimen. 

 Fig. 14. Azygous side view of the same. 

 Fig. 15. Lateral view of same. 



CrATlIOCRISOS CHOUTEAUENSIS, n. Sp 6J< 



Fig. 16. View of a calyx and part of arniB. azygous side un the right. 



CVATHOCRINUS MACADAMSI, n. sp 611 



Fig. 31. Calyx and part of arms, azygous side on the right. 

 Fig. 32. Lateral view of the same. 



■Cyathocrinds brittsi, d. sp : 70 



Pig. 35. Basal view of calyx. 

 Fig. 86. Azygous side of same. 



Platvckinus tugurium, n. sp 70 



Fig. 17. Basal view. 



Fig. 18. Azygous side view. 



Fig. 19. Summit view. 



Pl.ATVCRlNUS FORMO:4U8, U. Sp 72 



Fig. 20. Basal view. 



Fig. 21. Azygousside view. 



pLATrcKisuB MissooRiENsis, n. sp 73 



Fig. 22. View of longer side. 

 Fig. 23. View of shorter side. 



Platvcki.s'us PKrrisENsis, n. sp 7.1 



Fig. 24. Basal view. 

 Fig. 25. Lateral view. 



Pl.ATVCRINCS CLlNATfS, n. Sp • 74 



Fig. 26. Shorter Bide view. 



Fig. 27. Longer side view. 



Fig. 2S. Longer side of another specimen. 



Fig. 29. Shorter side of same. 



Fig. 30. Longer side of another specimen. 



Plattcbinus sniXiPERue, n. sp 75 



Fig. 33. Basal view. 

 Fig. 34. Lateral view. 



Pl-AT/CRINUS CASCLA, n. Sp 76 



Fig. 37. Basal view. 



Fig. 38. Azygous side view. 



Fig. 89. Opposite side of same. 



Fig. 40. Summit view . 



Pl.ATVCRINDS SEMIFUaUS, D. Sp 77 



Fig. 41. Lateral view. 

 Fig. 42. Basal view. 



Pl.ATVCRlNUS MonESTOs, n. Sp 77 



Fig. 43. Lateral view. 

 Fig. 44. Basal view. 

 Fig. 45. Summit view. 



Platvcrinus GERM anus, u. sp — 78 



Fig. 46. Lateral view. 

 Fig. 47. Basal view. 



