I 



o 



4. 



5. 



C. 



7. 



8. 



9. 

 10. 

 11. 

 12. 

 13. 

 14. 



15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 



23. 



25. 



20. 

 27. 



28. 



Plate 3. 



1-14. Dorocidaris Reini Dod. 

 Valve of globiferous X'edicellaria. x 55. 

 Valve of small globiferous pedicellaria. x 55. 

 Valve of another small globiferous pedicellaria. x 55. 

 Developmental stage of valve of tridentate pedicellaria. x 55. 

 Later developmental stage of valve of tridentate pedicellaria. x 55. 

 Valve of tridentate pedicellaria. x 55. 



Interior view of base of valve of tridentate pedicellaria. x 55. 

 Upper end of stalk of globiferous pedicellaria. x 55. 

 Ainbital primary spine, x 3. 

 End view of tip of same spine, x 3. 

 Actinal primary spine, x 3. 

 Primary spine nearest actinostome. x 3. 

 Secondary spines, x 11. 

 Miliaries. x 11. 



li>-28. Dorocidaris bracteata A. Ag. 

 Valve of globiferous pedicellaria. x 55. 

 Valve of small globiferous pedicellaria. x 55. 

 Valve of another small globiferous pedicellaria. x 55. 

 Valve of another small globiferous pedicellaria. x 55 

 Developniental stage of valve of tridentate pedicellaria. x 55. 

 Later developmental stage of valve of tridentate pedicellaria. x 55. 

 \'\i\vo of tridentate pedicelliria. x 55. 



Interior view of l)a.se of valve of tridentate pedicellaria. x 55. 

 Upper end of stalk of globiferous pedicellaria. x oo. 

 Ambital jtrimary spine, x ',). 

 End view of tip of same spine, x 3. 

 Actinal primary spine.s. x 11. 

 Secondary s])ines. x 11. 

 Miliaries. x 11. 



