254 



Transactions of the Society. 



A. W. del. 



Fig. 11. — Sketch of living Terebella in tube (t) temporarily supporting 

 with its tentacles (te) the large stone (s) prior to fixing it permanently 

 on the rim with the sand-grains (gr), which are being poured into 

 the up-lifted lips or prostomium (p) by the smaller tentacles. 



