Plate 124. 

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



1. Tridentiite pediccllaria. X 70. 



2. Valve of tridentate pedicellaria. X 70. 



3-6. Clypeaster reticulatus (L.). 



3. ^'alve of tridentate pediccllaria of specimen from Reunion. X 70. 



4. \'alve of tridentate pediccllaria of specimen from Mauritius. X 70. 



5. ^'alve of tridentate pediccllaria of young specimen from Hawaii. X 70. 



6. ^'alve of tridentate pedicellaria of adult specimen from Hawaii. X 70. 



7-12. Laganum depressum Agass. 



S 

 9 



10, 

 11 

 12 



\'alve of tridentate pedicellaria. X 70. 



Side view of valve of tridentate pedicellaria. X 70. 



Blade of valve of ophieephalous pedicellaria. X 350. 



Exterior view of loop of valve a of ophieephalous pedicellaria. X 350. 



Exterior view of loop of valve b of ophieephalous pedicellaria. X 350. 



Exterior \iew of loop of valve r of ophieephalous pedicellaria. X 350. 



13-H). Laganum fudsiyama Dod. 



13. Top of stalk of o]ihicephalous pedicellaria. X 350. 



14. Rods of miliary sjiines. X 3.50. 



15. Valve of small tridentate pediccllaria. X 70. 



16. Valve of large tridentate pedicellaria. X 70. 



17. Laganum laganum (Leske). 



17. A'alve of tridentate pediccllaria. X 70. 



18-20. Peronella rubra Diid. 



IS. Rods of a miliary spine. X 350. 



19. Rod of another nuliary spine. X 350. 



20. ^'alve of a triphyllous pedicellaria. X 350. 



21, 22. Peronella peronii (Agass.). 



21. Blade of -valve of ophieephalous pedicellaria. X 350. 



22. Valve of triphyllous peilicellaria. X 3.50. 



23, 24. Peronella lesueuri (Agass.). 



23. Valve of triphyllous pedicellaria. X 350. 



24. Valve of tridentate' pedicellaria. X 350. 



