PLATE XIV. 



Echinoneus semilunaris, /. i - 5. 



1. Seen from above, partly with spines and tentacles. 



2. Part of test, with spines, tentacles, and pedicellaria;, magnified. 



3. Part of test without spines. 



4. Actinostome and anal system. 



5. Anal system, showing arrangement of plates when spines are removed. 



Echinoneus cyclostomus, f. 6-S. 



G. Anal and actinal systems, showing plates, in specimen 31.7"". in longitnd. diam. 



7. Part of test magnified. 



8. Young tubercles in specimen, 12.7"»- in longitud. diam. 



Agassizia excentrica, /. 9 - 12. 



9. Very young, measuring 6.2""- in diam., seen from above. 



10. Same, seen from actinal side. 



11. Ambulacral rosette of same specimen, more magnified. 



12. Same in profile, to show fascicles. 



