INDEX 



561 



Pipetta, 514, BBS ; P. weberi, 533 



Pirata, 417 



Piriform glands, 335, 349 



Pisa, 193 



Pisaura mirabilis, 4^6 



Pisauridae, 4IS 



Placoparia, 251 



Plagiostethi, 443, 447, 449, 452 



Plagula, 317 



Planes minutws, habitat, 202 



Plankton, characters of, 203 ; fresh-water, 

 207, 216 ; Cladooera in, 50 



Plastron, 316 



Plate, on Tardigrada, 481, 482, 484 



Plator insohns, 4-Z5 



Platoridae, 4IS 



Platyarthrus hoffmannseggii, 1S9 



Platyaspis, 1'21 



Platybimus, 450, 451 



Platycheles, 535 



Plectreufys, 393 



Pleopod, defined, 110 



Pleura, 234 f. 



Pleurocrypta microbranchiata, 133 



Pleuroinma, 59 ; P. abdominale, 59 ; P. 

 gracile, 59 



Pliobothnts syinmetricus, Pycnogon larvae 

 in, 523 



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

 534 n. 



Podasconidae, ISO 



Podogona, 258, 439 



Podon, 54 



Podophthalmata, 112 



Podoplea, 61 



Podosomata, 501 n. ( = Pycnogonlda, ci.v.) 



Poecilotheria, 390 



Poisonous hairs, of Spiders, 365 



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

 copia, 85 ; P. miteUo^, 85 



Pollock, 340 



Poltyiuae, 4IO 



Poltys, 410 ; P. ideae. 318 



Polyartemia, 36 ; antennae, 26, 28 ; range 

 of, 34 ; P. forcipata, 36 



Polyaspidae, 84 



Polycopidae, 109 



PolygonopMS, 539 



Polyphemidae, 54 ; appendages, 42 ; 

 ovary, 47 ; reproduction, 49 



Polyphemus, 47, 54 \ P- pediciUus, 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. microphthalma, 138 



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

 platycheles, 170 



VOL. IV 



Porcellanidae, 170 ; habitat, 198 



Porcellio, 129 



Porcupine, 540 



PorhomTna, 4O6 



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



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

 latus, 496 ; P. bifurcatus, 496 ; P. 

 clavatus, 496 ; P. crocidura, 496 ; P. 

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

 gracilis, 496 ; P. heterodontis, 496 

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

 megacephalus, 497 ; P. megasiomus. 

 497 ; P. moniliformis, 497 ; P. najae 

 sputatricis, 497 ; P. oxycephaliis, 497 

 P. platycephalus, 497 ; P. probosciileus. 

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

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

 subtdi/erus, 497 ; P. teretiusculus, 489. 



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

 Portunidae, 191 



Portunion, 134 \ P' maenadis, 134 ; life- 

 history, 135, 136 



Portunus, 191 



Potamobius { = Astacus), 157; distribu- 

 tion, 213 



Potamocarcinns, 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 



Prodidomus, 396 



Protitidae, S51 



Proetus, 251 ; P. hohemicus, 248 



Prokoenenia, 4^^ ; P. chilensis, 423 ; P. 

 wheeleri, 423 



Prolimulus, 279 



Promesosternite, in Limulus, 264 



Proparia, 244 



Prosalpia, 4SO 



Prosoma, of Arachnida, 260 ; of Limulus, 

 260, 263 ; of Burypterida, 285 ; of 

 Scorpion, 301 



Prosthesima, 397 



Prostigmata, 47-Z 



Protaspis, 239, 239, 240 



Proteolepas, 94 ; P- biiiincta, 94 



Protocaris, 243 



Protolenus, 24^ 



Protolimulus, 279 l- 



Protolycosa anthrocophila, 383 



Przibram, on regeneration in Crustacea, 

 156 



Psalidopodidae, 164 ; habitat, 204 



Psalidopus, I64 



2 



