INDEX 



495 



Plasmodial theory 278, 384, 459 ff. 

 Plasmodium 197, 212, 276, 288, 313, 



361 

 Plasmodroma 358 

 Platjctena 85 

 Platyctenea 22 

 Platyhelminthes 78, 82, 137, 252, . 



258, 270, 285 ff. 

 Pleurostomous Gymnostomes 301 

 Plumularia 220 

 Plumulariidae 110 

 Pneumatophorae 161 

 Pneumatophore 161, 162, 198, 312 

 Podaxonia 408, 425 

 Podoeorjne 64, 159, 160 

 Podocyst 107, 158, 214, 218 

 Pogonophora 4, 168, 427, 429, 439, 



461 

 Polycellular state 330, 368, 370, 402 

 Polychaeta 135, 334, 403, 412, 413, 



417, 456, 460 

 Polychoerus 212, 223 

 Polycladida 14, 22, 54, 71, 81, 82, 



85, 140, 148, 195, 263, 338, 352 ff. 

 Polycnidom 203 

 Polydiscal strobilation 218 

 Polyenergetic 72 

 Polygordius 40 



Polykaryonic state 294, 307, 309, 361 

 Polykaryonic theory 284, 290, 313, 



329, 335, 386, 459 

 Polykrikos 65 

 Polymastigida 62 

 Polymeria 27, 52, 137, 257, 346, 



388, 391-393, 399, ff. 

 Polymeric state 397, 405, ff. 

 Polymerization 9, 11, 63, 64, 142, 



148, 170, ff. 

 Polymetamera 393 

 Polymorphismus 70, 109, 110, 153, 



161, 214, 218, 236, 312, ff. 

 Polyp 189, 209 

 Polyphyly 349, 350, 351, 354 



Poly podium 216 



Polypomedusa 123 



Polysegmented state 405 



Poly sty lophora \1A 



Porifera 78, 79, 322, 371, 463 



Porus excretorius 138 



Postgamous division 289, 290, 336 



Potamohius 451 



Pouchetia 65 



Praedatores 453 



Praegamont 284, 287, 289, 294 



Praesoma 432 



Priapuloidea 296, 396, 397, 426, 460 



Proacoela 308 



Prochorda 180 



Prociliata 321, 375 



Poeumetazoon 273 



Progamous division 291 



Progressive evolution 45, 75, 98, 



103, 111, 167, 259, 271, 329, 414, 



449 

 Pronucleus 288, 289, 305 

 Prorhabdocoela 258 

 Prorhynchus 120 

 Prorodon 200 



Prosopygia 415, 424, 425 

 Protandry 148 

 Protaxonia 376 



Proterospongia 6, 7, 308, 322, 333 

 Proteidae 443 

 Protichtya 456, 461 

 Protista 33, 65, 66, 103, 138, 281, 



282, 319, 329, 355 

 Proteus 348 

 Protobionta 355 



Protociliata 285, 320, 372, 375 

 Protocoelomata 390 

 Protocytoidea 356 

 Protohydra 151, 216, 211 

 Protomonadina 361 

 Protonephridia 22, 137-144, 



328, 387, 390 ff. 

 Protophyta 65, 227, 354, 360, 363 



