INDEX 



467 



X-inadiation, 

 on a^ing, 389 



on CampanulariiK 312, 389, 390, 395 

 on interstitial cells, 439 



Zoo-anemonin, 180 

 Zoochlorella, 53, 54 



in Chlorohijdra liastroclerniis, 52, 259 



intracellular location of, 52 



possible role in symbiosis, 262 



removal of, 259, 267 

 Zooids, spiral, 



of Hijdractinia, 356 



of Poducoryne, 356 



Zooxantheliae, 255 



in Actiniaria, 270 



in Alcijonuria, 270 



in A. elegant isshna, 255-257 



calcification, role in, 273, 279, 285 



corals, role in, 263, 274 



in Gorgonia, 270 



in Hydrocorals, 270 



intracellular location of, 256 



reef building, role in, 270 



in Scleractinian corals, 270 



phosphate, uptake of, 274 



in Zoanthidea, 270 

 Zymogenic cell, 44 



from interstitial cell, 78 



