Plate 124. 

 1, 2. Clypeaster lytopetalus A. Ag. & CI. 



1. Tridentate pedicellaria. X 70. 



2. Valve of tridentate pedicellaria. X 70. 



3-0. Clypeaster reticulatus (L.). 



3. Valve of tridentate pedicellaria of specimen from Reunion. X 70. 



4. Valve of tridentate pedicellaria of specimen from Mauritius. X 70. 



5. Valve of tridentate pedicellaria of young specimen from Hawaii. X 70. 



6. Valve of tridentate pedicellaria of adult specimen from Hawaii. X 70. 



7-12. Laganum depressum Agass. 



7. Valve of tridentate pedicellaria. X 70. 



8. Side view of valve of tridentate pedicellaria. X 70. 

 !). Blade of valve of ophicephalous pedicellaria. X 350. 



10. Exterior view of loop of valve a of ophicephalous pedicellaria. X 350. 



11. Exterior view of loop of valve b of ophicephalous pedicellaria. X 350. 



12. Exterior view of loop of valve c of ophicephalous pedicellaria. X 350. 



13-16. Laganum fudsiyama Dod. 



13. Top of stalk of ophicephalous pedicellaria. X 350. 



14. Rods of miliary spines. X 350. 



15. Valve of small tridentate pedicellaria. X 70. 



16. Valve of large tridentate pedicellaria. X 70. 



17. Laganum laganum (Leske). 



17. Valve of tridentate pedicellaria. X 70. 



18-20. Peronella rubra Dod. 



18. Rods of a miliary spine. X 350. 



19. Rod of another miliary spine. X 350. 



20. Valve of a triphyllous pedicellaria. X 350. 



21, 22. Peronella peronii (Agass 



21. Blade of valve of ophicephalous pedicellaria. X 350. 



22. Valve of triphyllous pedicellaria. X 350. 



23, 24. Peronella lesueuri (Agass.). 



23. Valve of triphyllous pedicellaria. X 350. 



24. Valve Of tridentate pedicellaria. \ •'!.".(). 



