SPIROPHOEELLA. 237 



connecting-iibres. All the fibres are charged with abundant oxea. In the 

 outer surface and also in the canal-walls abundant spiral microsclera of small 

 size are observed. Similar spicules are also found in the ground-substance. 

 Below the outer surface these spicula form a true cortex. 



Geoqeaphical Distribution. — Bast coast of Australia : Port Jackson, 

 N. S. W. {Lendenfeld). 



