(i Proceeding.^ of the Royal Society of Victoria. 



01 mm. For the greater part of their lengtli these 

 spicules are imbedded amongst the sub-oscolar gastral 

 triradiates and they extend some way below the oscular 

 diaphragm. 



The specimen upon which the above account is based was 

 dredged by Mr. J. Bracebridge Wilson, M.A., in the neigh- 

 bourhood of Port Phillip Heads, Victoria. 



