INDEX 



SS9 



Orithyia coccinea, 524, 540 



Ornithodoros, 469 : 0. megiiini, 469 ; 0. 



moibbata, 469 ; 0. tahije, 469 ; 0. turi- 



cata, 469 

 Ornithoscatoides, 374 

 Orometopns, 226, ^45 ; 0. elatifrons, 230 

 Ortmanii, on Bracliyuia, 181 n. ; on bipp- 



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



uogons, 513 n. 

 Ostracoda, 107 ; pelagic, 202 

 Oxidemans, 528 u. 

 Ovaiy, of Cladocera, 44, 45 ; of Danalia, 



132 ; of Spiders, 332 

 O'jyynctspis, 88 



Oxyopes, 419 ; 0. lineata, 419 

 Oxyopidae, 419 

 Oxyptila, 412 

 Oxyrhyncha, 191 1 ; habits, 192 ; enemies, 



192 ; habitat, 198 

 Oxystomata, 185 f. ; respiration, 186, 187 



Pachi/cheles, 170 ; P. panaviensis, distri- 

 bution, 202 

 Pachygnatha, 407 ; P. clercJcii, 407 ; P. 



degeerii, 407 ; P. listen, 407 

 Pachygrapsus, 196 ; P. martnoratus, 193, 



194, 196 

 Pachylasma giganteum, 91 

 Pachylmnerus, 388 

 Pachysoma, 69 

 Pagnridae, 180; eyes of deep-sea, 149, 



150 

 Paguridea, 171 

 Pagurinae, 180 

 Palaemon, 164 \ excretory glands, 13 ; 



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



Bopyrus jiarasitic on, 133 

 Palaemonetes, 164 > ^' antrorum, habitat, 



210 ; P. varians, 161 ; distribution, 212 

 Palaemonidae, 159, I64 

 Palaeocaris, 115, 118 

 PcdaeopIioHus, 294, 298 

 Palamnaeus, 307 ; P. swammerdami, 



tarsus, 304 

 Palinuridae, 167 

 Palinurus, 165, 167 ; habitat, 198, 202 ; 



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

 bryo, 165 

 Pallene, 505, S37 ; P. attenuata, 541 ; P. 



brevirustris, 510, 524, 537, 541, 642 ; 



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. pygviaea, 537, 541 ; P. spectrum, 



542 ; P. spinosa, 537 

 Pallenidae, 637 

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



tritonis, 542 

 Palp, of Pycnogons, 507 

 Palpal organ, 322, 378 

 Palpebral lobe, 227 



Palpigradi, 258, 42!i 



Palpimanidae, 323, 325, 398 



Palpimanus, 398 



Panamomops diceros, 405 



Pandalidae, 164 



Pandalns, 164 't P- cmmilicornis, 164 



Pandinus, 307 



Panoplax, 195 



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



Panulirus, 165, 167 



Pardbolina, 232, 247 



PardboUnella, 247 



Pardbuthus, 298 ; P. capensis, 298, 299 



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



hohemicus, 246 

 Paragaleodes, 4^9 

 Paraloviis, 179, 181 

 Paranaspides, 117 ; P. lacvstris, 117 ; 



distribution, 210; habitat, 210 

 Paranebalia, 242 



Paranephrops, 157 ; distribution, 213 

 Paranthura, 124 



Parantipathes, Synagoga parasitic on, 94 

 Paranymphon, 507 ; P. spinosum, 542 

 Parapagums, 180 

 Parapallene, 537 



Parajpeneus, 162 ; P. rectacutus, 159 

 Parapylocheles Scorpio, eyes, 149 

 Parasiro, 44^ j P- corsicus, 448 

 Parasites, in Tardigrada, 484 

 Parasitic castration, 100, 136 

 Parastacidae, 157 ; distribution, 213 

 Parastacus, 157 ; distribution, 213 

 Paratropidinae, 387 

 Paratropis scrupea, 387 

 Parazetes auchenicus, 533 

 Pardosa, ^-?7 ; female carrying young, 



341 ; P. amentata, 417, 418 ; P. l-ugu- 



bris, 418 

 Pariboea spinipalpis, 534 

 Parthenogenesis, in Phyllopoda, 32 ; in 



Cladocera, 44, 46, 49 ; in Ostracoda, 108 

 Parthenopc, 193 ; P. investigatoris, 192 

 Parthenopidae, 193 

 Pasiphaea, 163 

 Pasiphaeidae, 163 

 Pasiihoe, 532 ; P. umbonata, 535 ; P. 



vesiculosa, 535, 541 

 Pasithoidae, 532 

 Patten, 270, 271, 277 

 Patten and Redeiibaugh, on Liniulus, 266, 



270, 272 

 Paturon, 319, 320 

 Peckham, 376, 377, 378, 381, 382 

 Pecten, 328 

 Peotines, of Scorpions, 302, 302 ; function 



of, 299 ; of Olytoscorpius, 294 

 Pedicle, 317 

 Pedipalpi, 2S8, 308 ; habits, 309 ; external 



structure, 309 ; legs, 309 ; internal 



structure, 310 ; alimentary canal, 310 ; 



nervous system, 311 ; classification, 312 



