114 THE DEPTHS OF THE SEA. [chap. iii. 



tlie 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 Loven 

 has shown, of Reaves of short spicules bound together 



Fig. IS.—Stylocordylahormlls, LoviN iSi->. y. Natural size. (No. 04.) 



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 Pauna of 

 the Atlantic," refers this form to his genus Cowietella, 



