INDEX. 



611 



Pedipalpi, 506. 

 Pedipalpus, -184. 

 Pedunculata, 445. 

 Pelagia, 236, 200, 261 

 Pelodcra, 357. 

 Pelodytes, 346, 350. 

 Peltocaris, 448. 

 Peltogaster, 447, 460 

 Pelzfresser, 568. 

 Pelzkivfer, 590. 

 Pelzmottc, 582. 

 Pemphigus, 570. 

 Penaeus, 477. 

 Penella, 436. 

 Pennatula, 231. 

 Pennatulidte, 231. 

 Pentacrinus, 289. 

 Pentacta, 274. 

 Pentamera, 589. 

 Pentastomidse, 408. 

 Pentastomum, 488. 

 Pentatoma, 572. 

 Pentatrematites, 289. 

 Perforata, 181, 232. 

 Pericbondrium, 39 

 Peridinium, 196. 

 Periosteum, 41. 

 Peripatus, 514. 

 Periplaneta, 557. 

 Perischiechinidae, 295. 

 Peritricha, 205. 

 Perla, 561. 

 IVrlidte, 561. 

 Petalopus, 180. 

 Phalaugiida, 505. 

 Phanerocarpse, 255. 

 Phanero-codonic gono- 



phore, 236. 

 Phascolosoma, 394. 

 Phasma, 557. 

 Philodina, 404. 

 Philoptcrus, 568. 

 Pholcus, 505. 

 Phora, 576. 

 Phoronis, 389. 

 Phosphorescent organs 



of insect, 536. 

 PhoxichiWdium, 496. 

 Phreoryctes. 385. 

 Phroninia, 455. 

 PLrosina, 455. 

 Pliryganea, 565. 

 Phryganid:e, 564. 

 Phrynus, 507. 

 Phthirius, 5<;s. 

 Phyllacanthus. 296. 

 Phyllium, 557. 

 Phyllophnrus. 278. 

 Phyllopoda, 416. 

 Phyllosomata. 471. 

 Phylloxera, 570, 



Phylloxera, Reproduc- 

 tion of, 128. 



Phylogeny, 122. 



Physalia, 244, 249. 



Physematium, 194. 



Physometridse. 583. 



1'hysophora, 248, 249. 



Physophoridae, 241, 248. 



Physopoda, 559. 



Phytophasra, 594. 



Phytophthires, 568. 



Pieris, 585. 



Pigment of eye, 86, 88. 



Pilidium, 341. 



Pilzfliegen, 576. 



Pilzkafer, 588. 



Pilzmiicken, 578. 



Pimpla, 595. 



Pinnotheres, 478. 



Pinnulse, 270, 288. 



Piophila, 576. 



Pirates, 572. 



Pisa, 478. 



Pisces, vascular system 

 of, 64. 



Piscicola, 399. 



1'lanuria, 315. 



Plane, median, 27 ; sa- 

 gittal, 27 ; transverse, 

 27. 



Planipennia, 563. 



Plant-lice, 569. 



Plants and animals, 15 



Planula, 117, 124, 255. 



Plasmodium, 30. 



Platygaster, 594. 



Platygaster, larva? of .549. 



Platyhelmiuthcs. 309. 



Platypezidie, 576. 



PLityscelus, 456. 



Pleopods of Isopoda, 457. 



Plcurun, 483, 525. 



Pliny, system of, 132. 



Ploteres, 572. 



Plume-moths, 582. 



Plumularia, 237, 242. 



Plusiadae, 583. 



1'luteus, 281, 282, 292, 

 294, 296.' 



Pneumatoryst, 244. 



Pneumatophore, 214. 



Pneumora, 555. 



Podocerus, 455. 



Podocorync, 237, 241. 



Podophora, 296. 



Podophrya, 205. 



Podura, 554. 



Poikilothermic, 74. 



Poison glands, 532. 



Polar areas of t'teno- 

 phora, 264, 



Polar body, 104. 

 Polian vesicles, 272. 

 Polistes, 566, 597. 

 Pollicipes, 445. 

 I'olyaetinia, 225, 

 Polybostrichus, 372,379. 

 Polycelis, 311, 315. 

 Polychaeta, 374. 

 PolyciiTus, 378. 

 Polycladus, 311. 

 Polycystidea, 208. 

 PolycystinidEe, 190. 

 Polycyttaria, 196. 

 Polydesmus, 521. 

 Polydora, 382. 

 Polygastrica, 192. 

 Polygordius, 375. 

 Polymorphina, 180. 

 Polymorphism, 23, 126. 

 Polymorphism, Facts of, 



in favour of Theory 



of Descent, 152. 

 Polymorphism of social 



insects, 155. 

 Polymyaria, 345. 

 Polynoe, 379. 

 Polyommati'lse, 585. 

 Polyophtbalmus, 372. 

 Polyparia, 227. 

 Polyphemus, 422. 

 Polypoid, 211. 

 Polypomedusje, 233. 

 Polyp type, 210. 

 Polystomea, 317, 318,322 

 Polystomella, 187. 

 Polystomum, 323, 324. 

 Polythalamia, 186. 

 Polyxenus, 521. 

 Polyzonium, 515, 521. 

 Pompilus, 597. 

 Pontobdella, 400. 

 1'oiitonia, 477. 

 Porcellana, 460, 478. 

 Porcellio, 457, 460. 

 Porifera, 214. 

 Porpita, 250. 

 Portunus, 478. 

 Postabdomen of Arthro- 



pnda, 407. 



Pustscutellum, 526, 591. 

 1'ou de jKiissiiiis, 438. 

 I'rachtkiifer, 589. 

 PrsBabdomen of Artliro 



poda, 407. 

 Pru-stumium of C.'hn'ti. 



fera, 387. 

 Prani/ca, 459. 

 Prawns, 477. 

 Praying insect, 557. 

 Priapulus, 391. 

 Primitive bt leak, 115, 



