INDEX 



723 



Panorpa, 349. 



Panther, 656. 



Panto poda, 385. 



Papilio, ,352; PapilionidcE, 351. 



Papula, 192, 193. 



Paradisea, 617. 



Paragonimus, 162. 



Parahippus, 701. 



Paramecium, 53-62; anatomy, 53; be- 

 havior, 55 ; metabolism, 55 ; repro- 

 duction, 59. 



Paramenia, 252. 



Paramylum, 42, 43. 



Paramyxitif, 420. 



Parapodia, 233, 234, 235. 



Parapophysis, 435. 



Parapteron, 330. 



Parasites, 6, 7, 251. 



Parasilica, 345. 



Parasphenoid, 493, 494. 



Parazoa, 24, 25. 



Pareiopod, 278, 280. 



Parenchyma, 158. 



Paridir, 591. 



Paroquet, 610. 



Parrot, 591, bio. 



Parthenogenesis, 80, 212. 



Parthenogonidia, 46, 47. 



Partridge, 606. 



Passerijormes, 591, 614, 615. 



Patella, 372, 637; Patella, 271. 



Pathogenic Protozoa, 70-71. 



Pathology, 26. 



Pauropoda, 309; Pauropus, 309. 



Pavo, 631. 



Peacock, 631. 



Pearls, 263, 264. 



Peccary, 644, 667, 668. 



Pecten, 588; Pecten, 262. 



Pectiiiatclla, 185. 



Pectincs, 378. 



Pecliniliriiiii ///</, .'58. 



Pectoral girdle. 404, 404 (see skeleton). 



Pedicellaria. 191, 192, 203. 



Pedicellina, 185. 



Pediciilida, 345 ; Pediculus, 345 . 



Peclipalpi, 372, 378; Pcdipalpi, 381-382. 



Peduncle, 185, 186. 



Pelagia, 133. 



Pflecanidce, 590, 601. 



Pelecypoda, 242, 243, 261, 262, 263. 



Pelican, 590, 601. 



Pellicle, 53. 



Pelobates, 512; Pelobalidce, 512, 518-519. 



Pelomedusa, 535 ; Pelomedusidas, 535. 



Peltogaster, 294. 



Pelvic girdle, 404, 405 (see skeleton). 



Pen, 265, 266. 



Penteus, 297, 303-305. 



Penguin, 589, 598, 599. 



Penis, 152, 322 (see reproductive system). 



Pennae, 578. 



Pcnnalida, 140; Pcnnatulacea, 140. 



Pcntareros, 199. 



Pcntacrinus, 190, 209. 



Pentastomida, 384, 385 ; Pcntastomum, 



384. 



Pentalomidcr, 348. 



Peramelida, 649. 



Pcrca, 432; Perccsoccs, 444; Pcrcida, 



444, 467- 



Perch, 432-442, 467 ; circulatory system, 

 438; development, 441; digestive 

 system, 437; excretory system, 440; 

 external features, 432; locomotion, 

 433 ; muscular system, 437 ; nervous 

 system, 440; reproductive system, 441 ; 

 respiratory system, 438; sense organs, 

 440; skeleton, 434. 



Pericardium, 406 (see circulatory system). 



Pcridinium, 47, 48. 



Perilymph, 410. 



Perinacal pouch, 634. 



Periostracum, 245. 



Peri pat us, 305, 306, 397, 308. 



Periphylla, 132, 133. 



Peri plane/a, 331, 343. 



Periproct, 202, 203. 



Perisarc, 119, 120. 



Perissodaclyla, 644, 671-672. 



Peristome, 191. 



Peritoneum, 193, 219, 479, 481. 



Pi-rilriclin, 65. 



Periwinkle, 260. 



Permian, 697. 



Peromedus(B, 132, 133. 



Persa, 128. 



Petrel, 590, 600, 601. 



Pctromyzan, 414, 415-420; circulatory 

 system, 417, 418; development, 419; 

 digestive system, 416, 417; economic 

 importance, 420; external features, 

 415; muscular system, 416, 417; 

 nervous system, 417, 418; relation- 



