562 



INDEX 



Psalistops, 3S'.> 



Psechridae, 399 



Psechrus, 399 



Pseudalibrotus, 1-17 



Psettdidiops, 3S8 



Pseudocuma, 131 ; distribution, 215 



Pseudocumidae, 1~1 



Pseudoniscus, 279 



Pseudopallene, 511, 5,17 ; P. circuit/ ris. 



540 ; P. spinipes, 537 11. 

 Pseudoscorpiones, JUS, 4^0 f. ; habits, 



430 ; external structure, 431, 432 ; 



internal structure, 433 ; development, 



434, 435 ; classification, 436 ; British 



species, 438 



Pseudo-stigmatic organs, 467 

 Pseudozoaea, larva of Stomatopod, 143 

 Pf.erocuma, J.,' I 

 Pterolichus, J66 

 Pteronyssus, 4^6 

 Pterygometopus, 249 

 Pti'i-t/i/iitits, 283,291, 292; P. osiliensis, 



290 

 Ptychopai-iit, ."/? 



PllCi'titi rii-idia, .}/> 



Pupa, of Cirripedia, 81, 82 



Purcdlia, 44$ 



Pychnogonides, 501 n. 



Pycnogonida, fi<>l f. ; body, 505 ; chelo- 



phores, 505 ; palpi, 507 ; ovigerous 



legs, 507 ; glands, 511 ; alimentary 



system, 513 ; circulator}' system, 516 ; 



nervous system, 516 ; eyes, 517 ; in- 



tegument, 518 ; reproductive org:m>, 



519 ; eggs, 520 ; development, 520 ; 



habits, 524 ; systematic position, 525 ; 



classification, 528 f. ; British species, 



540 f. 



Pyenogonidae, 539 

 Pycniii/"iii'i/i, 503, 539 ; P. austral e, 540: 



P. criixsirnfifre, 540 ; P. liftornle, 501. 



540, 541 ; P. n> ; /r/f,iiiic,i,,/, 540 ; P. 

 e, 540 ; P. microps, 540 ; P. 

 , 540 ; P. cn'ir/itn/i', 540 ; P. 



ji/ii/ififinifnw, 540 ; P. jwsillinii, 540 ; 



P. stearnsi, 540 

 Pygidium, 235 



/'f/f'-icheles, ISO ; P. m /'</:*!!, 173 

 Pylochelidae, ISO ; habitat, 204 

 /'///"/'.</"'*, ISO; relation to Lithodidae, 



177, 178 



, 92 



-Iinix, 3S8 



Railliet, on classification of Pentastomids, 

 495 



Ha iii /if/ i/i-i/t/ifii, As'.s' 

 K.ininidae, 188 

 Rastellus, 320, 387 

 l-lii/i<iiiii, 6S ; mouth, 63 

 Reaumur, 360 

 Recurved eyes, 316 



Red spider, 455, 472 



Red-water, 456 



Regeneration, of Crustacean limbs, 155, 

 156 



Regillus, 414 



Reichenbach, on embryology of Astacus, 

 12 



Reighardia,' 495, 497 ; hosts of, 497 



Remipes, 171 ; R. scutellatus, 171 



Remopleurides, 232,^7; R. radians, 229, 

 248 



Reproduction (incl. Breeding), of Clado- 

 cera, 43 f. ; of A/iasjiides, 116 ; of 

 Lobster, 156 ; of Limulus, 274 ; of 

 Spiders, 365 ; of Ticks, 461 ; of Pycno- 

 gons, 520 



Reproductive (generative) organs, of Crus- 

 tacea, 15 ; of Phyllopoils, 31 ; of 

 Cladocera, 43 ; of Arachnids, 257 ; of 

 Limulus, 271 ; of Scorpions, 305 ; of 

 Spiders, 333 : of Solifugae, 428 ; of 

 Phalangidea, 446 ; of Acarina, 461 ; of 

 Tardigrada, 482 ; of Pentastomida, 

 492 f of Pycnogous, 519 



Respiration, of Crustacea, 16; of Anas- 

 /'ii/i's, 115 ; of Albunea, 170 ; of 

 Corystes, 170, 189 ; of nitynx, 174 ; 

 of Oxystomata, 186, 187 ; of Cato- 

 metopa, 194, 195 ; of Arachnids, 256. 

 (See also Respiratory organs.) 



Respiratory organs, of Arachnids, 256 ; 

 of Limulus, 269, 270 : of Kurypterids, 

 288 ; of Scorpions, 305 ; of Spiders, 

 336 ; of Tardigrada, 482 ; of Penta- 

 stomida, 491. (See also Respiration. ) 



Rhvyodes, 425, 4%9 



Rhagodinae, ,/.'.'' 



Rhax, 429 



s, 469 ; R. samjuinfus, 470 

 Rhizocephala, 95 f. ; compared with J/"//- 



fifri/la, 66 ; with Aiielaxma, 89 ; castra- 



tion caused by, 100 ; males, 106 ; 



association with Entoniscidae, 136 

 Rhoiiijilni'-i/, '/..' 

 Rhopal&rhynchus, 582 \ R. rlcu-ipes, 533: 



R. knnjt'ri, 533; R. tenuissimus, 533 

 Rhynchothoracidae, 535 

 Jthii/ichiithorax, 505, 535 ; R. tdtftti-nfi.t. 



536 ; R. mediterraneus, 508, 535, 



536 



Ricinulei, 439 

 Robber-crab, 173 

 Ronctts, 436, 438 

 Rucker, 423 

 Rudolphi, on Pentastoma, 488 u. 



nil. 451 



Sabelliphilus, 71 



Sofi-uliiHi, 95 ; life-history, 96 f. ; males. 

 99 : castration caused by, 100 f. : N. 

 carcini, 9>i : - s '. n<- ; i!<-cta, Nauplius, 97 ; 



