INDEX 



451 



Calcification, 



by herniatypic corals, 275-277 



light, role of, 279 



mechanism of, 273, 280 



oxaloacetate on, 283 



oxygen on, 273 



photosynthesis, role of, 272, 277, 278, 



280 

 rates of, 275, 278 

 removal of waste on, 274 

 species differences in, 272 

 stimulation of, 273 

 theory of, 273 

 zooxanthellae, role of, 270, 279, 283, 



285 

 Calcium carbonate, 



deposition, 271, 273, 280 



assay of, 275 



photosynthesis on, 271 

 production, 



mechanism of, 273 



in reefs, 270, 273 

 Calcium ions, 



for calcification, source of, 274, 275 

 on feeding reflex, 214, 225 

 CaUiactis parasitica, 184 

 behavior of, 198 



function of nematocysts in, 198-202 

 5-hydroxytryptamine of, 184 

 Calyptoblast, 297 

 Campaniihiria, 



acid phosphatase of, 381, 386 

 acid phosphatase, of tentacles, 386 

 aging of, 302, 375, 379, 388, 391 

 cell migration in, 440 

 culture of, 302 

 desmosome of, 66 

 development of, 291-316, 375, 376 

 food catching ability of, 388 

 growth pattern, alterations of, 301 

 histochemical properties, 379 

 hydranth, 

 ' ATP, content of, 389 



differentiation of, 299, 307 



ingestion time by, 388 



regression of, 304, 379, 380-383 



replacement of, 304 

 longevity of, 311 

 mitosis in, 313 

 nutrition on, 301 

 patterns of colonial growth of, 298- 



300, 311 

 peristalsis of, 379 

 radiation on, 312, 390, 391, 395 

 reconstitution of, 304-306 



Campanidaria, 



regeneration of, 308, 309, 397 



regenerative capacity of, 307 



regression of, 304, 379-383 



section of, 381 



temperature on, 301 



tentacle of, 387 



terminal growth, age on, 303 



transport in, 397 

 Campanularia ficxtio.sa, 297, 300, 331 



see Campanularia 

 Capitulum, of Craspedacusta polvp, 317, 



319 

 Capsule, nematocyst, 81, 112, 132, 154, 



155 

 Carbon dioxide, 410 



calcification, role in, 283, 284 



loss to environment, 362 



incorporated by hydra cells, 362 



as a metabolite, 361, 362 



pemieates cell membrane, 358 



in replacement of dicarboxvllic acids, 

 362 



see also pC02 

 Carbon fixation, 



of ahermatypic organisms, 277 



diurnal rates of, 277 



by Halimeda, 276, 277 



of herniatypic organisms, 276, 277 

 Carbonate, 



in calcification, role of, 279 



deposition of, 280 



see also Calcium carbonate 

 Carbonic anhydrase, 



in calcification, 272 



inhibitor of, 272 

 Cardium, hiunan, aging of, 379 

 Cations, on feeding reflex, 213 

 Cell contacts, across the mesoglea, 62 

 Cell cultures, A. clegantissima, 245, 246, 



248 

 Cell death, 



mechanism of, 380 



in tentacles, 436 

 Cell membrane, 



barrier to ions, 341 



permeability to ammonia, 341, 358 



permeability to carbon dioxide, 341, 

 358 

 Cell migration, 315, 436 

 Cell relationships, 6 

 Cell replacement, 314, 315 



aging on, 393 

 Cell size, in tissue culture, A. elegantis- 



sima, 246 



