552 



Index. 



Otus brachyotus, 461 

 „ vulgaris, 461 



Outer germ layer, 43 

 „ root sheath, 467 



Ovarioles, 242 



Ovary, 34 



Ovibos moschatus, 509 



Oviduct, 33 



Ovigerous lameUse, 206 



Oviparous, 47 



Ovipositor, 243, 269 



Ovis, 509 

 „ ammon, 509 

 „ aries, 509 

 „ musimon, 509 



Ovum, 5, 32, 34 



Owls, 461 



„ (a) Diurnal, 461 



„ Great Eared, 461 



Hawk, 461 

 „ Little, 461 



„ Scops Eared, 461 



„ Snowy, 461 



„ (b) Nocturnal, 461 

 „ Bam, 461 



„ Long-eared, 461 



Short-eared, 461 

 Tawny, 461 

 „ Tengmahn's, 461 



Oxyuris vermicularis, 160 



Oyster, 314 



catcher, 459 



Paoa, 531 

 Psedogenesis, 118 

 Pagnirus, 225 



Berhardus, 226 

 Palsearotic region, 74 

 Palsemon, 223 

 Palaeontology, 77 

 Palseotherium, 502 

 Palatal ridges, 487 

 Palate, 482 



hard, 482 



„ soft, 482 

 Palatine, 394 

 Palato-quadrate, 327 

 Palinurus, 225 



„ vulgaris, 225 



Palisade Worm, 160 

 PaEial chamber, 287 



„ line, 308 



„ muscle, 307 

 Palp, 169, 188 

 Paludina vivipara, 302 

 Pancreas, 342 

 Pandion haliaetus, 460 

 Pangolin, 527 

 Panbrpa, 262 



„ communis, 262 

 Panther,-517 

 Paper-wasps, 271 

 Papillse circumvaUatae, 487 



„ filiformes, 487 

 foliatae, 487 



„ fungiformes, 487 

 Paradiseidae, 463 

 Paraglossae, 233 



Paramoecimn, 94 

 Parasites, 24, 63 

 Parasitic Copepods, 201 

 Parasitism, 62 

 Parasphenoid, 363, 394 

 Parental instinct, 52 

 Paridas, 462 

 Parietal, 362 

 Parovarium, 351 

 Parrakeets, 465 

 Parrots, 446 

 Parrot-fish, 389 

 Parthenogenesis, 37 

 Partial segmentation, 45 

 Partridge, 455 

 Parus caudatus, 462 



„ coeruleus, 462 

 „ major, 462 

 Pastor, 463 

 Patagium, 428 

 Patella, 302, 330 

 Paunch, 507 

 Pavo cristatus, 455 

 Pavonidae, 455 

 PaxiUae, 123 

 Peacock, 455 

 Pearl Mussel, 315 

 Pearls, 311 

 Peccaries, 506 

 Pecten, 314, 443 

 Pedal disc, 112 



„ ganglia, 289 



„ nerves,, 289 

 orifice, 308 

 Pedes adhamantes, 452 



„ ambulatorii, 452 



„ cursorii, 452, 453 



„ fissi, 452 



„ fissipalmati, 457 



„ gTadarii, 452 



„ grallarii, 458 



„ gressorii, 452, 465 



„ insidentes, 452 

 palmati, 452, 456 

 raptorii, 460 

 scansorii, 452, 465 



„ stegani, 457 



„ vadantes, 452 

 PediceUariae, 123, 132, 137 

 Pedioulati, 391 

 Pediculatidffi, 160 

 Pediculus capitis, 260 



„ vestimenti, 260 

 Pedipalpi, 279 

 Peduncle, 182, 188, 204 

 Peewit, 459 

 Pelagic fauna, 61 

 Pelargi, 459 

 Pelecauus, 457 

 Pelican, 457 

 Pelican's foot, 302 

 Pelobates fuscus, 406 

 Pelobatidffi, 406 

 Peltogaster paguri, 207 

 Pelvic girdle, 328 

 Pemphigus spirotheoae, 258 

 Penaeus, 223 

 Penguins, 457 



Penis, 34 



Pennae, 431 



Pennatula, 115 



Pentacrinus, 130 



Pentastoma, 285 



Perameles, 498 



Peramelina, 497 



Perca fluviatilis, 389 



Perceptive cells, 21 



Perch, 389 



Percidae, 389 



Perdicidse, 455 



Perdix cinerea, 455 



Perforate Ehizopoda, 88 



Perennibranchiata, 405 



Peribranchial cavity, 538 



Pericardium, 187, 345 



Perichondrium, 329 



Perinaeal pouches, 469 



Periosteum, 329 



Peripatus, 177 



Periplaneta orientalis, 253 



Perissodaotyla, 502 



Peristome, 136, 138 



Peristomium, 169 



Peritoneum, 342 



Periwinkles, 302 



Peropoda, 424 



Peter's Thumb, 389 



Petrel, Fulmar, 456 

 „ Stormy, 456 



Petrels, 456 



Petrifactions, 76 



Petromyzon, 382 



fiuviatilis,382 

 „ marinus, 382 



planeri, 382 



Petrosal, 362 



Phacochoerus, 506 



Phalanges, 328 



Phalangiidae, 282 



Phalangista, 498 



Phalangistidae, 498 



Phalaropes, 460 



Pha]a,ropus, 460 



Pharyngeal bones, 365 



Phascolarctos, 498 



Phascolomys, 499 



Phasianidae, 455 



Phasianus, 455 



„ colchicus, 455 



PhasianomorphsB, 455 



Phasmidae, 253 



Pheasants, 455 



Phoca, 519 



„ fcetida, 519 



„ greenlandica, 519 



„ vitulina, 519 



Phocaena communis, 524 



Phocidae, 519 



Phoenicopterus, 458 



Pholas, 315 



Phosphorescent organs, 28, 

 211 



Phryganea, 262 



Phthirius pubis, 266 



Phyllium siccifoUum, 254 



PhyUopoda. 193 



