6s6 



INDEX 



Ferkins, 232 n. , 290 



Peronella, 549 



Peronium, 295 



Perrier, on classification of Asteroidea, 

 461 



Persian Tick, 121 



Petal, of Echinarachnius parma, 545 ; of 

 Fibularidae, 549 ; of Echinanthidae, 

 549 ; of Mchinocardium cordatwm, 551 



Petalocrinus, 595 



Petasidae, 29^ 



Petasus, 294 



Peters, 414 n. 



Petrostroma, 193 ; P. schulzei, 193 



Pfeiffer, on Sporozoa, 94 



Phacella, 314 



Plmcotus, 111 ; shell, 113 



Phaeoconchia, 79, 85 



Phaeocystina, 79, 82, 87 



Phaeodaria (Cannopylaea, Tripylaea), 76, 

 79 ; skeleton, 82, 84, 85 ; central cap- 

 sule, 82, 84 ; fission, 85 



Phaeodium, 76, 81, 82 



Phaeogromia, 79 



Phaeosphaeria, 79 



Phakdlia, 224 



Phalangopora, 284, Z86 



Phalansteridae, 111 



Phalansterium, 113 



Phauerocodonic, 253, 265 



Phanerozonate, 454 



Pharetronidae, 19S 



Pharyngdla, 79, 86 



Pharynx, of Stylonychia mytilus, 139 ; of 

 Ciliata, 145 ; of Gymnostomaoeae, 145 ; 

 of Paramecium catidatum, 151 ; of 

 Caenamorpha uniserialis, 165 ; of Peri- 

 trichaceae, 145 ; of Oarchesiwn poly- 

 pinum, 146 f. ; of Vorticella, 156, 167 



Pharynx-tube of Euglenaceae, 124 f. — see 

 also Flagellar Pit 



P/ieronema, Z04 ; P- carpenteri, 204, 205, 

 221 



Phialidmm temporarium, 281 



Pholidastsr, 474 



Phoriospongia, SW 



Phosphorescence, of Dinoflagellata, 132 ; of 

 Cystoflagellata, 132, 134 ; of Noctiluca, 

 132, 134 ; of Scyphozoa, 311 ; of 

 Alcyonaria, 338 ; of Pennatulids, 361 ; 

 of Gtenophores, 414 



Phosphorescent oil-drops in Radiolaria, 80 



Photopathy, 21 



Phototaxy, 21 ; of BugUna, 125 



Phycochromaceae, 39 



Phycomycetes Zoosporeae related to Flagel- 

 lata, 109 



Phycomycetous Fungi, relations of, 48 



Phylactocarp, 276 



Phyllactidae, 38^ 



Phyllangia, 400 ; P. americana, 374 



Phyllode, 553 



Phyllograptus, 28^ 



Phyllophorus, 573 ; P. rugosus, 567 ; P. 

 urna, 574 



Physalia, 300, 302, 304, 308 



Physiological contrast of Animals and 

 Plants, 38 



Physiology, of cell and protoplasm, 3 f. ; 

 of Sponges, 234 f. ; of nervous system of 

 Bchinoidea, 519 f. 



Physonectidae, 301, 307 



Physophora, 301, 308 ; P. borealis, 304 



Physophorae, 307 



Physophorinae, SOS 



Pigment, of Stentor, 154 ; of Sponges, 169, 

 238 ; -granules, of Phaeodaria, 76, 80 f. 



Pinacocyte, 170, 213, 237 



Pincer-shaped pedicellariae, 456 



Pinean, on spontaneous generation, 43 



VmuvAe, oi Antedon rosacea, 581, 583; of 

 A . eschrichtii, 594 ; of ffyocrinus, 590 ; 

 of Metacrinus, 592 ; of fossil Crinoidea, 

 595 



Pinulus (a pentactine triaxon in which the 

 unpaired actine bears lateral spines and 

 projects beyond the bounding surface), 

 20* 



Piroplasma, 120 f. 



Placosmilia, 401 



Placospongia, spicules of, 233 



PlaMna, 212, 213 ; P. monolopha, 210, 

 212, 213 



Plankton, Protozoa of, 48 ; Foraminifera of, 

 61 ; Radiolaria of, 75 



Planorbulina, 59, 63 



Plant{s), definition, 39 ; Animals and, dis- 

 cussion on, 35 f. ; Higher, movements 

 of, 38 ; insectivorous, 38 ; -Protists, rela- 

 tions of, 48 ; -cells, wall of, 37 ; proto- 

 plasmic connexions of, 37 — see also 

 Metaphytes 



Plamila, 341 



Plasmodium, 30 ; rheotaxy, 21 ; of Myxo- 

 mycetes, 50, 90 f. ; of Proteomyxa, 88 ; 

 of Didymium, 92 



Plasmodium, a generic name given to 

 Acystosporid Coccidiaceae producing 

 malarial fever, 103 f. — see Haemamoeba, 

 Laverania 



Plastid, 21, 36 f. ; of Paulinella, 54 n. ; 

 of Flagellates, 110, 112 f. ; of Trachelo- 

 monas, 112 — see also Chloroplasts^ 

 Chromatophore, Chromoplastid 



Plastogamy, 30, 34 n. ; of Rhizopods, 56 ; 

 of Foraminifera, Discorbina and Patel- 

 lina, 69 ; temporary, in A ctinophrys sol, 

 72 ; of Myxomycetes, 90 f. 



Plastron, of Echinocardium- cordatum, 550 ; 

 of Sternata, 554 



Plate, on Dendrocometes, 162 



Plates, siliceous, of shell of Rhizopods, 29, 

 53 f. ; ctenophoral, 141, 412 f. 



