INDEX 



559 



Orithyia coccinea, 524, 540 



Ornithodoros, 469 : 0. viegnmi, 469 ; O. 



moubata, 469 ; 0. talajc, 469 ; 0. tnri- 



cata, 469 

 Ornithoscatoides, 374 

 Orometoptis, 226, ^4^ ; 0. elatifrons, 230 

 Ortmann, on Bracbyura, ISl n. ; on Mpo- 



larity, 200 ; on crayiishes, 213 ; on Pyc- 



nogons, 513 ii. 

 Ostracoda, 107 ; pelagic, 202 

 Ondemaus, 528 n. 

 Ovary, of Cladocera, 44, 45 ; of Dancdia, 



132 ; of Spiders, 332 

 Oxynaspis, 88 



Oxyopes, 419 ; 0. lineata, 419 

 Oxyopidae, 419 

 O.ryjjfila, 412 

 Oxyrhyncha, 191 f. ; habits, 192 ; enemies, 



192^; habitat, 198 

 Oxystoniata, 185 f. ; respiration, 186, 187 



Pachycheles, 110 ; P. panaviensis, distri- 

 bution, 202 

 I'achygnatha, 407 ; P. derckii, 407 ; P. 



degeerii, 407 ; P. listeri, 407 

 Pachygrajisus, 196 ; P. marmoratus, 193, 



194, 196 

 Pachylasma giganteum, 91 

 Pachylovierus, 388 

 Pachysoma, 69 

 Paguridae, 180; eyes of deej^-sea, 149, 



150 

 Paguridea, 171 

 Pagurinae, 180 

 Palaemon, 164 ; excretory glands, 13 ; 



fresh-water, 212 ; P. serratus, 158, 164 ; 



Bojjyrus jiarasitic on, 133 

 Palaemonetes, 164 ', P- antronan, habitat, 



210 ; P. varians, 161 ; distribution, 212 

 Palaenionidae, 159, 164 

 Palaeoearis, 115, 118 

 Pcdaeophonus, 294, 298 

 Palainnaeus, 307 ; P. swammerdami , 



tarsus, 304 

 Palinuridae, 167 

 Pcdinurus, 165, 167 ; habitat, 198, 202 ; 



P. elepltas, 167 ; P. quadricornis, em- 

 bryo, 165 

 Pallene, 505, 537 ; P. aUennata, 541 ; P. 



brevirustris, 510, 524, 537, 541, 542 ; 



P. dimorpha, 538 ; P. emaciata, 541 ; 



P. empusa, 541 ; P. grubii, 538 ; P. 



languida, 537 ; P. longiceps, 538 ; P. 



novaezealandiae, 537; P. producta, 542; 



P. pygmaea, 537, 541 ; P. spectmm, 



542 ; P. spinosa, 537 

 Pallenidae, 537 

 Pallenopsis, 506, 511 ; P. hoUi, 542 ; P. 



tritonis, 542 

 Palp, of Pycnogons, 507 

 Palpal organ, 322, 378 

 Palpebral lobe, 227 



Palpigradi, 258, 422 



i\ilpinianidae, 323, 325, 398 



l'<d]nmanus, 398 



Panamoriiops diceros, 405 



Pandalidae, 164 



Pandalus, 164 5 P- anmdicornis, 1 64 



Pandinus, 307 



Panoplax, 195 



Pantopoda, 501 n. ( = Pycnogonida, r/.r. ) 



Pannlirus, 165, 167 



I'arabolina, 232, 247 



I'arabolinella, 24^7 



Parabuthus, 298 ; P. capensis, 298, 299 



Paradoxides, 222, 232, 236, 247; P. 



bohemicus, 246 

 Paragahodes, 4~9 

 Pandomis, 179, 181 

 Paranaspides, 117 ; P. laci'sfris, 117 ; 



distribution, 210; habitat, 210 

 Paranebalia, 242 



I'aranephrops, 157 ; distribution, 213 

 Paranthura, 124 



Para lit l/iaflicri, Synagoga parasitic on, 94 

 I'oi'iiiii/iii/:/iiiii, 507 ; P. spinosum, 542 

 I'arupiKjurus, 180 

 I'arapaUene, 537 



Parapene.us, 162 ; P. rectacuhis, 159 

 Parapylocheles scorpio, eyes, 1 49 

 Parasiro, 448 ; P. corsicus, 448 

 Parasites, in Tardigrada, 484 

 Parasitic castration, 100, 136 

 Parastacidae, 157 ; distribution, 213 

 Parastacvs, 157 ; distribution, 213 

 Paratropidinae, 387 

 Paratropis scrupea, 387 

 Parazetes auchenicus, 533 

 Pardosa, 41"^ > female cari'ying young, 



341 ; P. amentata, 417, 418 ; P. lugu- 



bris, 418 

 Pariboca spinipcdpis, 534 

 Parthenogenesis, in Phyllopoda, 32 ; in 



Cladocera, 44^ 46, 49 ;'iu Ostracoda, 108 

 Parthenop&, 193 ; P. intiestigatoris, 192 

 Parthenopidae, 193 

 Pasiphaea, 163 

 Pasiphaeidae, 163 

 Pasithoe, 532 ; P. umbonata, 535 ; P. 



vesicidosa, 535, 541 

 Pasithoidae, 532 

 Patten, 270, 271, 277 

 Patten and Redeiibaugli, on Liinulus, 266, 



270, 272 

 Paturon, 319, 320 

 Peckham, 376, 377, 378, 381, 382 

 Pecten, 328 

 Pectines, of Scorpions, 302, 302 ; function 



of, 299 ; of Glytoscorpius, 294 

 Pedicle, 317 

 Pedipalpi, 258, 308 ; habits, 309 ; external 



structure, 309 ; legs, 309 ; internal 



structure, 310 ; alimentary canal, 310 ; 



nervous system, 311 ; classification, 312 



