INDKX 



831 



Phenmema carpenter*, ISO, 123 



PkUodina, 828, 331. 334 



Pfcofoa, 898, 7ix», 711 



Phoronida. S40, S65* 



Phoronis, 356, 356, 357, 358, 359 



Phraymoi ■ M, sn ■'! 



I'hragmocone, ?!».")*, 796 



Phreatoiai*, 568 



Phroninnt, 585, 586 



Pkrymu, 663 



Phyiactolaemata. 348*, 849, SSI, 352, 353 



Phyllocarida, ."WO*, 580, 581. :>!I4, 596, 



601, BOS 

 PhyUoflwt. pan ft i. 479 

 Phyllosoma, 600 

 Phvlogeny, 8* 

 Phylum, 5*, 48* 

 Physalia, 163 

 Physiology, 9* 

 Pima, 635 

 Pigment, 68, 119 

 Pi/, ma, 183 

 Pilidium, "29.") 



Pill-bug, 586 

 Pm«j, 696, 702 

 Pinnothere*, 602 



Pinnules, 407* 



Pi*cicola, 516, 522 



Placophora, 713*, 715, 716, 717, 718, 

 720, 721 



Planaria, 236: General features, 236, 

 237, 240: Digestive system, '236, 237 i 

 Water vessels, 237, 238 : Nervous 

 system, 237, 238 : Reproductive sys- 

 tem. 238, 239 : Systematic i><>sition, 

 268 



PlanaridtB. 253 



Plankton, 8* 



P/iiiiorhidiim, 58 



Plant lice, 634, 647 



Pianola, 139*, 140, 153, 173, 192 



Plasma, of blood, SO 



Plasmodium, 30*, 66. <>7 



P/atoum stereo eum, 51 



Platyctenea. 226* 



Platyhelminthe8, 235, 251*: Examples, 

 236. MO, 846: Systematic position, 

 253 : General external features, 2.">4 : 

 Integument and muscular layers, 262, 

 264: Parenchyma, 264, 265 : Alimen- 

 tary systems, 265, 266, 267 : Nervous 

 system, 266, 267 : Water vascular 

 system, 269 : Reproductive organs, 

 270, 271, 272: Development, 273, 274, 

 275, 276, 277, 278, 280, 281, 282, 379 : 

 Asexual reproduction, 283 : Distribu- 

 tion occurrence and relationships, 28 

 Appendix, 288 

 Platypoda, 733*. 734 

 Pleopod, 542* 

 Ph mohrarhia, 211 

 Phiirohrachiid'i', 221 

 Pleurobranchia, 550, 551* 



Pleoron, .vil* 

 Plevrophyilidia, 742, 743 

 Ploima, 328*. 329, 880 

 PlumctieUa, 348, 349 



Phimitldiin. I I '.» 



Pluteus, 400, 411, 412, 431. 432 



Pneumatophore, 1">9* 



Podical plates, 623* 



Podobranchia, 550* 



Podonierc, 526* 



Podopkrya, 99, 100 



Podura, 632, 633 



Polar body, l!l*, 20 



Polar plates, 216* 



Polian vesicle, 383*, 399, 402, 426 



Pol lie i/,, ' s, 579 



Polyarthra, 328, 330, 331 



Polyrtli.^ 255 



Polychaeta, 465*, 470, 471, 474, 478, 479 

 480, 481, 483, 484, 485, 486, 488, 489 



Polycladida, 282*, 255, 256, 257, 263, 

 264, 266, 267, 268, 271, 273, 274, 287 



Poly col pa, 154 



Polydora, 488 



PotygordUdtB, 503 



Pofygordiut laeteus, 504 



Poljffxtrdku nevpolitaniu, 503. 504, 505 ' 

 Polykrlko*, 78, 79 



Polymorphism, 141* 

 Polynesian region, 9* 

 PotynSe, 469, 484 

 Polynbe extenua/a, 471 

 PolyiKi' tetosuaima, 467 

 Poly noii In <■. 467, 481 

 Polyaca, 77, 78 

 Po/i/op/itlm/i/nix, 479 

 Polype, 129*, 148 

 Po/yph,i,i>i«, .1()4, 572 

 Polyphyletic, 286* 

 Polypoili inn. 167 

 Poly sperm}', 21* 

 Polystomatons, 183* 

 Polysomia, 257, 258 

 Po/i/x/onu lla, 55 

 Polystounnn, 258, 277, 284 

 Polytrochal, 486* 



Polyzoa. 340* : Kxample. 341 : Distinc- 

 tive characters and classification, 347 : 



See Ectoprocta and Em/oprortn 

 Polyzoa (Cestoda), 253* 

 Pontellina medilcrranea, 600 

 Pontohdi'lii, 616, 517, 518, 520 

 Porctllnnn, ."><>! I 

 Pore-membrane, 108, 109* 

 Porifera, Kxample, 106 : Distinctive 



characters ar.d classification, 111 : 



General form and mode of growth, 



114: Leading modifications of struc- 

 ture, 116: Histology, 119: Skeleton. 



120 : Reproduction, 120 : Develop- 

 ment, 122 : Distribution, affinities, 



&c, 126, 228 

 Porocyte, 109*, 124 



3 G 2 



