Ijima, Hexactinellida. Contribiition IV. 

 3. 



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

 2. 



4. 



13. 



S 





V 



Scyphidium longispina(Ij.} 



LITH, & IMP THE TOKIO PRINTING CO 



