MORPHOLOGICAL PART. 131 
TABLE C. 
DIAGRAMS ILLUSTRATING THE CHANGES IN THE DEVELOPMENT OF THE ANAL 
SIDE IN THE INADUNATA. 
1. Locrinus subcrassus ; 2. Poteriocrinus ; 3. Cyathocrinus ; 4. Pisocrinus ; 5. Haplocrinus clio; 6. Sym- 
bathocrinus ; 7. Baerocrinus ; 8. Hybocrinus ; 9. Iocrinus ; 10. Heterocrinus bellevillensis ; ll. Eetenocrinus ; 
12. Anomalocrinus ; 13. Homocrinus ; 14. Dendrocrinus ; 15. Poteriocrinus ; 16. Ceriocrinus ; 17. Ulocrinus ; 
18. Brisocrinus ; 19. Allageerinus. 
b=basals; R=radials; R’ =inferradial; «—=special anal plate; T=costals; ¢= tubeplates; o=orals. 
