Plate 49. 



1-8 Podocidaris sculpta A. Ag. 



1. Sphaeridium in position on test, x 70. 



2. Upper end of stalk of ophiceplialous pedicellaria. x TO. 



3. Calcareous rods from pedicels. X 70. 



4. Valve of ophiceplialous pedicellaria. x 70. 



5. Terminal part of another valve of similar pedicellaria. x 70. 

 C. Valve of tridentate pedicellaria. x 70. 



7. Terminal part of another valve of similar pedicellaria. X 70. 



8. Valve of triphyllous (small tridentate?) pedicellaria. x 70. 



9-14. Habrocidaris argentea A. Ag. and CI. 



9. Spheeridium. x 70. 



10. Upper end of stalk of ophicephalous pedicellaria. x 70. 



11. Calcareous rods from pedicels. X 70. 



12. Valve of ophicephalous pedicellaria. X 70. 



13. Basal part of largest valve of similar pedicellaria. X 70. 



14. Valve of tridentate pedicellaria. x 70. 



15-20. Habrocidaris scutata A. Ag. and CI. 



15. Spheeridium. x 70. 



IG. Upper end of stalk of ophicephalous pedicellaria. x 70. 



17. Valve of ophicephalous pedicellaria. X 70. 



IS. Basal part of largest valve of similar pedicellaria. X 70. 



19. Valve of tridentate pedicellaria. x 70. 



20. Calcareous rods from pedicels. X 70. 



21-28. Coelopleurus maculatus A. Ag. and CI. 



21. Valve of ophicephalous pedicellaria. x 70. 



22. Upper end of stalk of ophicephalous pedicellaria. x 70. 



23. Valve of large tridentate pedicellaria. X 70. 



24. Valve of very small tridentate (triphyllous ?) pedicellaria. X 70. 



25. Upper end of stalk of tridentate pedicellaria. X 70. 



26. Sphaeridial cavity with sphieridium in place. X 70. 



27. Calcareous particles from pedicels, x 70. 



28. Calcareous particles from gills, x 70. 



29,30. Coelopleurus longicollis A. Ag. and CI. 



29. Valve of ophicephalous pedicellaria. x 70. 



30. End of stalk of tridentate pedicellaria. X 70. 



31-33. Coelopleurus floridanus A. Ag. 



31. Valve of ophicephalous pedicellaria. x 70. 



32. Valve of tridentate pedicellaria. X 70. 



33. Valve of small tridentate (triphyllous ?) pedicellaria. X 70. 



31. Coelopleurus Maillardi A. Ag. 



34 Valve of ophicephalous pedicellaria. X 70. 



