INDEX 



563 



Cypris, 97 ; internal stages, 98 : with 

 parasitic JjiDialia, 130, 131 



Saitis, 421 ; S. pulex, 382, 421 



Salter, on facial suture of Trinudeus, 226 ; 

 ou classification of Trilobites, 243 



Salticidae, 419 



Baltic us, 420 ; S. scenicus, 372, 376, 420 



Sao, 235, 241 ', S. hirsuta, development, 

 239 



Sapphirina, 69; colour, 60; S. ofxdina, 

 69 



Sarcoptes, 466 ; S. mutans, 466 



Sarcoptidae, 455, 466 



Sarcoptinae, 4G6 



Sars, G. O., on Calauidae, 58 ; on Isopoda, 

 122 ; on Crustacea of the Caspian, 215 ; 

 on Pycnogons, 504 



Savigny, 526 



Scaeorhynchus, 533 



Scalidognathus, 388 



Sccdpellum, 84, 85 ; complemental male, 

 86 ; sex, 86, 105 f. ; S. balanoides, sex, 

 86 ; S. ornatum, sex, 87 ; S. peronii, 

 male, 86 ; sex, 87, 105 ; S. velutinum, 

 sex, 87 ; S. vulgare, 85, 86 ; male, 83 ; 

 sex, 86, 87 



Scaphognathite, 152 



Scapholeberis, 39, 52 ; S. mucronata, 52 



Schimkewitsch, 527, 534 



Schizochroal eye, 228, 229 



Schizonotidae, 310, .;/_' 



Schizonotus, 312 



Schizopoda, 112 ; re-classification, 113 ; 

 relation to Macrura, 162 



Schizorhynckus, 121 



Schmeil, on fresh-water Copepoda, 59, 62 



Schultze, on position of Tardigrada, 483 



Scipiolus, 535 



Sclerocrangon, distribution, 200 



Sderosoma, 450 ; .S. quadridmtatum, 450 



Sclerosomatinae, 449 



^1,,1,-a, 390 



Scopula, 324, 324, 389 n. 



Scorpio, 305, 307 ; S. bochmi, 307 ; S. 

 maunis, 307 



Scorpion, 297 f. 



Scorpionidae, 306 



Scorpionidea, 258, 297 f. ; habits, 298 ; 

 senses, 299 ; poison, 299, 301 ; mating 

 habits, 300 ; external structure, 301 ; 

 prosoma, 301 ; pre-cheliceral segment, 

 301 ; development of eyes, 301 ; me.so- 

 soma, 302 ; metasoma, 303 ; appendages, 

 303 ; pedal spurs, 304, 306, 307, 308 ; 

 tibial spurs, 304, 306, 307, 308 ; in- 

 ternal anatomy, 304 ; alimentary canal, 

 304 ; vascular system, 305 : nervous 

 system, 305 ; endosternite, 305 ; gene- 

 rative organ, 305 ; development of, 305 ; 

 classification, 306 ; fossil, 298 ; re- 

 semblance to Eurypterids, 292 



Scorpioninae, 306, 307 



Smrpiops, 308 



Scotinoecus, 390 



Scott, on fish-parasites, 69 n. 



Scourfield, on Cladocera, 51 n. 



Scutum, of Spiders, 317, 394 ; of Ticks 

 469 



Scyllanis, 167 ; S. arctus, 165, 167 



Scytodes thoracica, 393 



Scytodidae, 393 



Segestria, 395: S. perfidu, 369: S. seno- 

 culata, 395 



Segestriinae, 395 



Segmentation, of Crustacea, 5 f. ; of Trilo- 

 bites, 223 f. ; of Arachnida, 256 ; of 

 Limulus, 263 ; of Pycnogons, 501 f. 



Seleuopinae, 414 



Selenops, 414 



Semper, 521 n. 



Senoculidae, 41$ 



Senoculus, 418 



Sense-organs^ of Arachnids, 257 ; of 

 Limulus, 271, 272 ; of Tardigrada, 482 ; 

 of Pentastomida, 491 (see also Auditory 

 organ, Eyes) 



Sergestes, 162 



Sergestidae, 162 ; Zoaea, 161 ; distribu- 

 tion. 204 



Serolidae, 12G 



Serolis, 12d ; distribution, 200 ; >'. 

 antarctica, S. bronleyana, S. schytei 

 eyes, 149 



Serrula, 322, 433 



Sesarma, 196 ; distribution, 213 



Setella, 61 



Sex, in Crustacea, 100 ; in Trilobites, 235 



Sexual dimorphism, of Copepoda, 57, 67, 

 75 ; of Jnachus, 103 ; of Tauaidae, 

 123 ; of Gnatkia, 125 ; of Prawns, 

 159 ; of Gelasimus, 194 ; of Spiders, 

 379 



Sheet-webs, 352 



Shell-gland, 13 



Shipley, A. E., introduction to Arachnida, 

 253 f. ; ou Xiphosura, 259 f. ; on Tar- 

 digrada, 475 f. ; on Pentasto:::lda, 

 488 f. 



Shrimp, 153, 158, 164, 198, 199 



Shumardiu, .'4- r > 



Shumardiidat . 



Sicariidae, 327, 393 



Si i'ii r! us, .!!'.! 



S&Zo, ~>l ; reproduction, 49; 5. crystnlllnn, 

 22, 39, 40 



Sididae, 51 ; appendages, 40 ; heart, 43 



Siebold, von, 464 n. 



Sigilla, 410 



Silvestri, 473 n. 



Simocep/tdli'.'*, '>.' ; >'. r./n/i.s, 38, 39 : 

 appendages, 41 



Simon, 303, 314 n.. 326, 385. 386 n., 387, 

 391 u., 397 n., 400, 401 n., 406, 408 n., 

 414 n., 418, 431, 433, 449, 452 



