189 



Fig. 24. Calcareous deposits, calcareous ring and stone-canal of Synaptula madreponca 

 1—5; calcareous deposits of Synaptula rosetta 6—9; rosettes of Synaptula hydriformis, 

 10 from Tobago, 11 from Bermuda; calcareous deposits and calcareous ring of Synaptula 

 maculata 12—16. The anchors and auchor-plates X 180, the rosettes x 1000 the stone- 

 canal fig. 5, X 9 and the calcareous rings fig. 3 & 2, x 24, 



