Ijima, Hexactinellida. Contribution IV. 



Jour. Sei. Coll. Vol. XVIII. Art. 7. PI. I. 



8. 



5. 



10. 



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6. 



7. 





11. 



12. 



13. 



Lamiginella pupa 0. ScHM. 



LITH, & IMP. THE TOKIC POINTING CO 



