114 



THE DEPTHS OF THE SEA. 



[CHAP. in. 



the corticate type, though it differs from all the other 

 known members of the order in being supported on a 

 long symmetrical stalk formed, as Professor Love*n 

 has shown, of sheaves of short spicules bound together 



FIG. 13. Stylocordyla borealis, LOVJSN iSp.,. Natural size (No. t>4.) 



by horny cement. A tuft of delicate fibres fixes the 

 base of the stem in its position. Professor Oscar 

 Schmidt, in his " Outline of the Sponge Fauna oJ 

 the Atlantic/' refers this form to his genus Cometelk. 



