Ijima, Hexactinelliäa. Contribiitio7i IV. 



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



5. 



2. 



B 



yi 



^. 



•Î 



.ü^ 



7. 



8. 





10. 



Hyalascus sagamiensis I.j. 



LITH. & IWP THE TOKIO PRINTING ( 



