4S6 



ZOOLOGY 



Orgyia, 353 

 Orthoneotidae, 135 

 Orthoptera, 335 

 Orthoptera genuina, 336 

 Oscardla, 39, 41, 43, 45 

 Osphradium, 189, 196, 



220 

 Ostracoda, 261, 275, 278, 



280 

 Ostrea, 190 

 Ostreidae, 192 

 Oxywds, 125, 129 



Paedoqenesis, 373 

 Paguridae, 286, 289, 298 

 Palaemon, 288 

 Pcdaemonetes, 289 

 Palaeonemertine, 120 

 Pcdinurus, 290 

 Paludicdla, 184 

 Paludina, 204 

 Papilio, 355 

 Paractinopoda, 251 

 Paraglossae, 376 

 Paranrnedum, 28, 29 

 Paramyhim, 23 

 Paranebalia, 280 

 Paranucleus, 28 

 Parapodia, 151 

 Parasitica (Hemiptera), 



369 

 Parasitica, 265, 269 

 Parasitism, 33, 112, 115, 



124, 128, 137, 151, 



204, 235, 240, 271, 



298 

 Patdla, 197 

 Pauropus, 318 

 Pecten, 192, 195, 208 

 Pectines, 897 

 Pedicellaria, 226, 241 

 Pedicellina, 186 

 Pedicvlus, 369 

 Pedipalpi, 403 



Pelagic, 58, 115 

 Pdagonemertes, 115 

 Pdomyxa, 10 

 Pendla, 269 

 Pennatula, 73, 74 

 Pennatulidae, 73 

 Pentacrinus, 236, 237,239 

 Pentamera, 357 

 Pentatomidae, 364 

 Perforata, 13, 68 

 Perichaeta, 145, 146, 149 

 Peripatus, 121, 148, 257, 



289, 300 

 Peripharyngeal bands, 439 



Perisarc, 47, 51 

 Peritricha, 26 

 Peronia, 60 

 Peronia, 208 

 Perradii, 61 

 Petrarca, 278 

 Phagocytes, 40 

 Phalangida, 416 

 Phalangium, 417 

 PhascoKon, 160, 166 

 Phascolosoma, 160, 166 

 Phasma, 337 

 Phasmidae, 337 

 Pkolas, 191 

 Phosphorescence, 26, 74, 



77, 235 

 Phronimidae, 293 

 Phryganidae, 349 

 PhrynuSy 404 

 Phryxus, 298 

 Phyllactolaemata, 184 

 PhylUrhoe, 207 

 Phyllium, 337 

 Phyllodrania^ 336 

 Phyllopoda (Cirrhipedia), 



254, 268, 280, 282 

 Phylloxera, 366 

 Phymosoma, 160, 161 

 Physcdia, 58, 59 

 Phytophaga, 378 

 Phytoptidae, 421 

 Pieridae, 355 

 Pirns, 351 

 Pilidina, 12 

 Plagiostoma, 94 

 Planaria, 81, 95, 183 

 Plasmodium, 5, 6, 7 

 Platyhelminthes, 34, 80 

 Pleurobranchus, 206 

 Plumatdla, 179, 182 

 Plumularidae, 56 

 Plusiidae, 353 

 Pneumatophores, 59 

 Pneumodermon, 208 

 Podura, 333 

 Podurinae, 333 

 PoUa, 123 

 Polian vesicles, 232, 234, 



243 

 PoUstes, 384 

 PoUicipes, 273 

 Polycdis, 81 

 Polycladida, 90, 91, 143 

 Polychaeta, 138, 150 

 Polyoystidae, 34 

 Polyergus, 382 

 Polygordius, 138 

 Polymorphism, 158, 448 

 Polynoe, 156, 158 

 Polyophthaiirms, 157 



Polypide, 180 

 Polystoma, 107, 111 

 Polythalmia, 13 

 Pdytcma, 25 

 Polyxenus, 315 

 Polyzoa, 56, 179, 259, 293 

 Polyzosteria, 336 

 Pontohddla, 132, 134 

 Pontodmlus, 145 

 Porifera, 36 

 Portunion, 298 

 Proboscidea, 122 

 Proctodaeuni, 78, 279 

 Proglottis, 97, 100 

 Pronotum, 324 

 Proporus, 94 

 Proscolex, 101, 106 

 Prosohranchiata, 197 

 Prosoma, 389 

 Prosopyles, 38 

 Prosorhochmus, 122 

 Prostomium, 78 

 Proteolepas, 278 

 Proteomyxa, 6 

 Proterospongia, 24 

 Protococtyii/S, 23 

 Protodrilus, l38, 139 

 Protomyxa, 6, 25 

 Protophyta, 3 

 Protoplasm, 1 

 Prototracheata, 300 

 Protozoa, 3, 5 

 Pseudocoel, 79 

 Pseudonavicellae, 35 

 Pseudopodia, 5, 6, 9 

 Pseudoscorpionlda, 401 

 Pseudotetramera, 357, 360 

 Pseudotrimera, 357, 361 

 Psolus, 246 

 Psyche, 353 

 Psychidae, 350, 353 

 Pteromalus, 380 

 Pterophoridae, 351 

 Pterophorus, 351 

 Pteropoda, 207 

 Pterotrachea, 204 

 Pidex, 371 

 Pulicidae, 371 

 Pulmonata, 205, 208, 288 

 Pulsellum, 23 

 Pulvillus, 371 

 Pupa coarctata, 361, 371 

 Pupa libera, 331, 351, 357 

 Pupa obtecta, 351, 371 

 Purpura, 203 

 Pyralidae, 352 

 Pyrosoma, 293, 450 



Eadicola, 366 

 Radiolaria, 18, 20 



