INDEX 



5 6l 



Pipetta, 514, 533; P. weberi, 533 



Pirata, 417 



Piriform glands, 335, 349 



Pisa, 193 



PtSlinrtl ;ili/-fibilifi, Jfl6 



Pisauridae, 4-16 

 Placoparia, 251 



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 



Plat or insolens, 415 



Platoridae, 415 



Platyarthrus hoffmannseggii, 129 



Platyaspis, 121 



Platybunus, 450, Jf51 



Platycheles, 535 



Plectreurys, 393 



Pleopod, defined, 110 



Pleura, 234 f. 



Pleurocrypta microbranchiata, 133 



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

 gracile, 59 



Pliobothrus 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 



I'o/liripes, 84 ', fertilisation, 86 ; P. cornu- 

 copia, 85 ; P. mitella, 85 



Pollock, 340 



Poltyinae, 410 



Poltys, 410 ; P. iiteae, 318 



Polyartemia, 36 ; antennae, 26, 28 ; range 

 of, 34 ; P. forcipata, 36 



Polyaspidae, 84 



Polycopidae, 109 



/'<>?!/i{nnopus, 539 



Polyphemidae, 54 ', appendages, 42 ; 

 ovary, 47 ; reproduction, 49 



Polyphemus, 47, 54 ', P- pediculus, habi- 

 tat, 206, 208 



Polysphincta carbonaria, parasitic on 

 Spiders, 368 



Pompeckj, on Calymenidae, 244 



Pompilus, 368 



Pontellidae, 60 



I'^itnporew, 137 ; distribution, 212 ; P. 

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

 loyi, 138 ; P. microphthalma, 138 



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

 platycheles, 170 



VOL. IV 



Porcellanidae, 170 ; habitat, 198 



Porcellio. 1 ."> 



Porcupine, 540 



Porhomma, 406 



Porocephalus, 488 n., 495 ; P. annvlolus, 



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

 latus, 496 ; P. bifurcatus, 496 ; 1', 

 davatus, 496 ; P. crocidura, 496 ; 1'. 

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

 gracilis, 496 ; P. heterodontis, 496 ; 

 P. indicus, 496 ; P. lari, 496 ; /'. 

 megacephalus, 497 ; P. megnstomvs, 

 497 ; P. moniliformis, 497 ; P. najae 

 sputatricis, 497 ; P. oxycephalits, 497 ; 

 P. platycephalus, 497 ; P. prolosci<li n*. 

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

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

 subuliferus, 497 ; /'. t<'i-ft!nxi-iiln.s, 489, 



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

 Portunidae, 191 



Portunion, 134 5 P- maenadis, 134 ; life- 

 history, 135, 136 



Portunus, 191 



Potamobius ( = 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 (Euproops'), 275, 278, 279 



Preyer, on anabiosis in Tardigrades, 484 



Prionurus, 298, 299 



Prismatic eye, of Trilobites, 229 



Procurved eyes, 316 



Prodidomidae, 395 



I'l-iiiliilniniift, 396 



Proetidae, 251 



Proetus, 251 ; P. bokemicitft, 248 



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

 wheeleri, 423 



Prolimulus, 279 



Proine.sosternite, in Limuhis, 264 



Proparia, 244 



Prosalpia, 450 



Prosoina, of Arachnida, 260 ; of /,;'/// n/i's, 

 260, 263 ; of Eurypterida, 285 ; of 

 Scorpion, 301 



Prosthesima, 397 



Prostigmata, 471 



Protaspis, 239, 239, 240 



Proteolepas, 94 ; P. liii-inrfa, 94 



I'riitiicaris, 243 



Protolenus, 2Jff 



I'/nt/i/ii/ii'Inx, 279 



Protolycosa anthrocophila , 383 



Przibram, on regeneration in Crustacea, 

 156 



Psalidopodidae, 164 ', habitat, 204 



Psalidopus, 164 



2 o 



