178 



Fig. 22. Calcareous deposits and calcareous rings of Synaptula denticulata 1-4, 

 Synaptula lualensis 5—10 and Synaptula neirensis 11—18. 12 & 17 from anterior 

 end, 13-16 from posterior end. 1-2, 7-8, 12-17 X 180; 13, 10, 11 X 1000; 

 4 x 24; 9 & 18 X 36. 



