772 



INDEX 



Pallium See Mantle 



Palpus. 40,1 



Pcdudicella, 32o, 320 



Palus. 192* 



Palythoa, 116, 184 



Pancreas, 32 



Pancreatic juice. 32"' 



PandoriiKi. 07. 08, 69 



Papula, 393. 347" 



Parabranchia. 090* 



Paragaster, 1)7""" 



Paraglossa, 589 



Paragnatha, 488"; 506 



Paramn-i-ii/n . 82 



PARAMCECIU.M. 79, yJO, 81 : Systematic 

 position, 82 



Param'ttltrux, 555 



Paramitome, 15* 



Paramylum, 04" 



Parapodium, 403, 404*, 405, 430 



Parenchyma, 222, 249 



Parthenogenesis, 38*, 200 



Parasitism, Protozoa. 90, 93 



Parthenogonidium, 70* 



Pnrthtuoi*, 541 



Patello. (i85. 080, 691. 693, 694,,695, 696, 

 698, 701 



PateHidtv, 683 



Pft.iii-v/'O'/'i; 507"", 570 



Pauropii*, 567 



Paxilla, 380* 



Peachia, 189 



Pearl-oyster. 047 



Pectin," 643, 648. 058, 659, 661 



Pectinibranchia, 083* 



Pedal gland, 088* 



I'tflrifiou, 306, 307, 304, 491 



Pedata, 379* 



Pedicellaria, 348*, 357, 363, 383, 389 



Pedicdlina, 320, 320. 327 



Pedipalpida, 611*, 013, 019. 621 



J'(-/arjia, 171 



Pelagic, 8* 



/'(/tof/nxf'-r. 534 



Pen, 7 12- 



1'i-ii'i-n*. 553 



Pennatula, 185, 186, 191, 195 



Pennatulacea, 182*, 184, 191 



Pentastomida See Linguatulida 



Pentastomiim t&nioide*, 625 



Peptones, 32* 



Perforate corals, 194* 



Pericardial sinus, 509* 



Perichondrium, 25* 



Pericolpa, 167 



Periosteum, 26* 



Periostracum, 634* 



PERU-ATI'S, External features, 559, 560: 

 Body-wall and body-cavity, 501 : En- 

 teric canal, 561 : Circulatory system, 

 561 : Organs of respiration, 562 : Coxal 

 and slime glands, 562 : Nervous 



system, 562 : Nephridia, 562 : Repro- 

 ductive organs, 562 : Development, 

 563 : Distribution, 566 : Relationship. 

 566 



PERIPLANETA AMERICANA, 571, 572 : 

 Head, 572 : Neck, 573 : Thorax, 574 : 

 Abdomen, 574 : Respiratory move- 

 ments, 575 : Muscles, 575 : Coelome, 

 576 : Digestive system, 576 : Renal 

 organs, 577 : Heart, 577 : Respiration, 

 578 : Nervous system, 578 : Organs of 

 special sense, 579 : Reproductive 

 organs, 579 : Development, 580 : Sys- 

 tematic position, 587 



Perisarc, 121* 



Peristaltic movements. 34* 



Peristomium, 404*, 417. 432 



Peromedusaj, 164*, 160, 167 



Per-radius, 129 



Petrarca, 534 



Phaco2)$fecundu, 558 



Phseodium, 59 



Phalangida, 012*, 015, 021 



Phanerozonia, 378* 



Pharynx See Digestive system 



Phaxmidir, 587 



Philodina, 303, 305, 309 



Phola*, 047, 061 



Phoronida, 313. 328 



Phoronis, 328, 329, 330, 343, 344 



Phragmoceras, 750 



Phragmocone, 742 



Phronima, 545, 546 



Phrynus, 613 



Phyiactoleemata, 320, 321. 322. 323, 324. 

 325, 320, 343, 344 



Phyllocarida, 523*, 535 



Phyllopoda, 521* 



Phyllosoma, 553 



Phylogeny, 8* 



Phylum, 5*, 41 



Phyvafia, 151, 152 



Physiology, 9* 



Picris, 586 



Pilema, 170 



Pilidium, 272, 273 



Pill-bug, 524 



Pinna, 047, 653 



Pinnothere*, 556 



Piscicola, 476, 481 



Placophora, 663*, 751, 665, 666, 667, 608, 

 071 



PLAN ARIA, 222 : General features, 222, 

 226 : Digestive system, 222, 223 : 

 Water vessels, 223, 224 : Nervous 

 system, 223, 224 : Reproductive sys- 

 tem, 224, 225 : Systematic position, 

 238 



Plankton, 8* 



Planorbulwa, 53 



Plant-lice, 5X5 



Planula, 129*, 130, 141*, 101 



