50S 



IXDEX 



Panciolin, 563 

 Panopcus, 3S2 

 Panorpiil:e, 42J 

 Pansporoblasts, luo 

 Pantopoda, joq 

 Papilio, 433 

 Parahronchi, 33S 

 Parachordals, 45O 

 Paractinopioda, 30S 

 Paradid\-mis, 4S0 

 ParadisL'a, 41 

 Paradoxides, 364 

 Paragaslric canal, 234 

 Paraglossa, 400 

 Paragnaths, 377 

 Parama;cium, loi, n)5 

 Paranuclein, 57 

 Paranucleus, ic)2 

 Parapodium, 276. 325 

 Parapophyses, 454 

 Parapteriuni, 534 

 Parasita, 360 

 Parasitism, 156 

 Parasphcnoid, 450 

 Parasuchia, 532 

 Paraxon gland, 203 

 Parenchyma, 230 

 Parietal bones, 451) 



eye, 470 



organ, 470 

 Parrots, 544 

 Parthenogenesis. 120 



artihcial, 137 

 Partridge, 543 

 Passer, 544 

 Passeres, 544 

 Patagium, 564 

 Patella, 327, 465 

 Patellida', 333 

 Pathetic nerve, 471 

 Pauropoda, 434 

 Pavement epithelium, {15 

 Pearl, 319 



organs, 493 



oysters, 323 

 Pearls, artificial, 404 

 Pebrine, 191 

 Peccaries, 56S 

 Pecora, 568 

 Pecten, 540 

 PectinatcUa, 2S7 

 Pectines, 392 

 Pcctinibranchia, 333 

 Pectinid;e, 323 

 Pectoral fin, 497 



Pccloral girdle, 464 

 Pedal ganglia, 312 

 Pe.lata, 30S 

 Pedicellaria, 202 

 Pedicellina, 2S5 

 Pcdiculus, 430 

 Pedipalpi, 380, 302 

 Pelagia, 223 

 Pelagic fauna, 104 

 Pelagothuria, 2i)2. 30S 

 Pelecanus, 543 

 Pelecypoda, 317 

 Pelican, 543 

 Pelmatozoa, 290 

 Pelobatidir, 520 

 Peltogaster, 374 

 Pelvic fin, 462, 407 



girdle, 464 

 Penella, 370 

 Pencils, 3S0 

 Penguins, 543 

 Penis, 109, 556 

 Pennaria, 217 

 Pennatula, 230 

 Penttcrinus, 302 

 Pentamcra, 424 

 Pentamerns, 200 

 Penlastomum, 157, 397 

 Pentatoma, 42S 

 Pentremites, 303 

 Pepsin, 1)0 

 Perameles, 560 

 Perca, 511 

 Perch, 511 

 Perdix, 543 

 Pereion, 351 

 Pereiopoda, 352 

 Perennibranchiata, 520 

 Perfecting princi]ile, 48 

 Perforata, iSo 

 Perforatorium, 72 

 Perla, 414 

 Peromedusit, 224 

 Perophora, 445 

 Peropoda, 531 

 Peribranchial chamber, 440 

 Pericardium, 101, 4,Si 

 Pcricha'ta, 270 

 Perichondrium, 77 

 Pericolpa, 224 

 Pcridinium, 1S4 

 Perilymph, 479 

 Perineum, 5=;(.) 

 Periosteum, 77 

 Perij)alopsis, 400 



Peri[iatus. 400 

 Peripharyngeal band. 443 

 Peripheral nerwuis system, 



Periphylla, 224 

 Peri[ilaneta, 421 

 Periproct, 303 

 Perisarc, 210 

 Perissodactyla, 56S 

 Peristalsis, 06 

 Peristaltic motion, 96 

 Peristome, 20S, ^o^ 

 Peritoneum, go, 4S1 

 Peritricha, 106 

 Periwinkles, 334 

 Perradii, 124 

 Petaurus, 561 

 Petromyzontes, 493 

 Petrosal, 43S 

 Phacellae, 220, 221 

 Pha'nicopterus, 544 

 Ph.iethon, 543 

 Phagocata, 242 

 Phalanges, 465 

 Phalangida, 304 

 Phalangistid;!;, 561 

 Phalangium, 304 

 Phalarocorax, 343 

 Pharyngeal bones, 496 



bulb, 264 

 Pharyngognathi, 510 

 Pharynx, 94, 40S, 442, 4S2 

 Phascalomys, sCi 

 Phascolion, 2S1 

 Phascolosoma, 2S1 

 Phasianus, 543 

 Phasmida?, 421 

 Phasmc^mantis, 421 

 Pheasants, 343 

 Phenacodon, 567 

 Phenacodontida', st^9 

 Philichthys, 30 

 Phidippus, 3c)6 

 Philine, 334 

 Philonexida\ 347 

 Phlegethontias, 433 

 Phoca, s^^s 

 Pholadida, 325 

 Phoronidea. 2S7 

 Phosphorescence, 121 

 Photolaxis, iiS 

 Phoxichilidium. 31)9 

 Phragniocone, 341 

 Phronima, 3S4 

 Phr)ganea, 422 



