291 



Fig. 58. Chiridola nanaimensis 1—3 and Chiridota aponocrita 4—11. 1 Rods 

 from body-wall, 2 from tentacle base, 3 from digits, 4 from polian vesicles, 

 6 from papilla in posterior end of body, 7 from digits, 9 from body-wall, 

 10 from tentacle base, 11 from longitudinal muscle, 5 madreporite, 8 cal- 

 careous ring. The rods X 400; the madreporite X 36 and the pieces of cal- 

 careous ring x 24. 



19' 



