INDEX 



561 



Pipetta, 514, 533 ; P. weberi, 533 



Pirata, J^ll 



Piriform glands, 335, 349 



Pisa, 193 



Piscmra mirabUis, 4I6 



Pisauridae, 41(> 



Placoparia, Sol 



Plagiostethi, 443, 447, 449, 452 



Plagula, 317 



Planes minutus, habitat, 202 



Plankton, characters of, 203 ; fresh-water, 

 207, 216 ; Cladocera in, 50 



Plastron, 316 



Plate, on Tardigrada, 481, 482, 484 

 ■ Plato7- insolens, 415 



Platoridae, ^15 



Platyarthrus hoffmannseggii, 129 



Plafj/aspis, 121 



Plaiijbunvs, 450, 451 



Plutychelcs, 535 



Phctreurys, 393 



Pleopod, defined, 110 



Pleura, 234 f. 



Pleurocrypta microbrancldata, 133 



Pleuromma, 59 ; P. abdominale, 59 ; P. 

 gracile, 59 



Plinhothrus symmetricus, Pycnogon larvae 

 in, 523 



Pocock, 298, 308 n., 312, 328, 329, 425 n., 

 534 n. 



Podasconidae, 130 



Podogona, 258, 439 



Podon, 54 



Podophthalmata, 112 



Podoplea, 61 



Podosomata, 501 n. ( = Pycnogonida, q.v.) 



Poecilotheria, 390 



Poisonous hairs, of Spiders, 365 



Pollicipes, 84 \ fertilisation, 86 ; P. cornu- 

 copia, 85 ; P. mitella, 85 



Pollock, 340 



Poltyinae, 4IO 



Poltys, 410 ; P. ideae, 318 



Polyartemia, 36 ; antennae, 26, 28 ; range 

 of, 34 ; P. forcipata, 36 



Polyaspidae, 84 



Polycopidae, 109 



Polygonopus, 539 



Polyphemidae, 54 ', appendages, 42 ; 

 ovary, 47 ; reproduction, 49 



Pnlyphenms, 47, 54 ', P. pedicidus, habi- 

 tat, 206, 208 



Polysphincta carbonaria, parasitic on 

 Spiders, 368 



Pompeckj, on Calymenidae, 244 



Pompilus, 368 



Pontellidae, 60 



Pontoporeia, 137 ; distribution, 212 ; P. 

 affinis, 138 ; P. femorata, 138 ; P. 

 loyi, 138 ; P. microphtludma, 138 



Porcellana, 168, 170;' Zoaea, 168 ; P. 

 2)hitycheles, 170 



VOL. IV 



Porcellanidae, 170 ; habitat, 198 



Porcellio, 129 



Porcupine, 540 



Porhomma, 4O6 



I'nnxrjihahis, 488 n., 495 ; P. annulatus, 



490, 496 ; P. aonycis, 496 ; P. armil- 

 latns, 496 ; P. bi/urcatus, 496 ; P. 

 clavatus, 496 ; P. crocidura, 496 ; /'. 

 crotali, 496 ; P. geckonis, 496 ; P. 

 gracilis, 496 ; P. heterodontis, 496 ; 

 P. indicus, 496 ; P. lari, 496 ; P. 

 megaceplialus, 497 ; P. viegasfomvs, 

 497 ; P. moniliformis, 497 ; P. najae 

 sputatricis, 497 ; P. oxycephcdus, 497 ; 

 P. platycephahis, 497 ; P. proboscideus, 

 493, 494 ; larvae of, 493, 494 ; hosts 

 of, 496 ; P. protelis, larva, 495 ; P. 

 subidi/erus, 497 ; P. teretvusculus, 489, 



491, 492, 492, 497 ; P. tortus, 497 

 Portunidae, 191 



Portunion, 134 \ P- macnadis, 134 ; life- 

 history, 135, 136 



Portunus, 191 



Potaviobius (—Astacus), 157; distribu- 

 tion, 213 



Potamocarcinus, 191 ; distribution, 213 



Potamon, 191 



Potamonidae, 191 



Praniza, larva of Gnathia, 125 



Prawn, 151, 153, 158, 164, 198 ; fresh- 

 water, 212, 214 



Pre-epistome, 443 



Prestwichia [Euproiips], 275, 278, 279 



Preyer, on anabiosis in Tardigrades, 484 



Priominis, 298,299 



Prismatic eye, of Trilobites, 229 



Procurved eyes, 316 



Prodidomidae, 395 



Prodidomus, 396 



Proetidae, 251 



Proetiis, 251 ; P. bohemiciis, 248 



Prokoenenia, 423 ; P. chilensis, 423 ; P. 

 wheeleri, 423 



Prolimulus, 279 



Promesosternite, in Limidus, 264 



Proparia, 244 



Prosalpiin, 450 



Prosonia, of Arachnida, 260 ; of Liimdus, 

 260, 263 ; of Eurypterida, 285 ; of 

 Scorpion, 301 



Prosthesima, 397 



Prostigmata, 471 



Protaspis, 239, 239, 240 



Proteolepas, 94 ; P- bivincta, 94 



Protocaris, 243 



Protolenus^ 24"^ 



Protolimulus, 279 



Protolycosa anthrocophila, 383 



Przibram, on regeneration in Crustacea, 

 156 



Psalidopodidae, 164 ; habitat, 204 



Pscdidopus, 16 4 



2 



