INDEX 



563 



Cypris, 97 ; internal stages, 98 ; with 



parasitic Danalia, 130, 131 

 Saitis, 421 ; S. puhx, 382, 421 

 Salter, on facial suture of Triiiiccleus, 226 ; 



on classification of Trilobites, 2-13 

 Salticidae, 4^9 



SaUicus, 420 ; *S^. scenicus, 372, 376, 420 

 Sao, 235, 247 ; S. hirsuta, development, 



239 

 Siqiplilrina, 69 ; colour, 60 ; S. opnllna, 



69 

 Surcoptes, ^6'6* ; S. viutans, 466 

 Sarcoptidae, 455, 4^G 

 Sarcoptinae, 4^6 

 Sars, G. 0., on Calanidae, 58 ; on Isopoda, 



122 ; on Crustacea of the Caspian, 215 ; 



on Pycnogons, 504 

 Savigny, 526 

 Scaeorhynchus, 533 

 Scalidogiiathus, 38S 

 Sccdpellum, 84, 85 ; coniplemental male, 



86 ; sex, 86, 105 f. ; .S'. balauoides, sex, 



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



male, 86 ; sex, 87, 105 ; .S'. vduiinum, 



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



sex, 86, 87 

 Scapliognathite, 152 



Scapholeberis, 39, 52 ; S. viucronata, 52 

 Schimkewitsch, 527, 534 

 Scliizochroal eye, 228, 229 

 Scliizouotidae, 310, 313 

 Schizonotus, 312 

 Schizopoda, 112 ; re-classification, 113 ; 



relation to Macrura, 162 

 Schizorhynchus, 121 



Schmeil, ou fresh-water Copepoda, 59, 62 

 Schultze, on position of Tardigrada, 483 

 Scipiolus, 535 



Sclerocrangon, distribution, 200 

 Sderosoma, 4^0 ; S. quadridentatum, 450 

 Sclerosomatinae, 449 

 Scodra, 390 



Scopula, 324, 324, 389 n. 

 Scorpio, 305, 307 ; S. bach mi, 307 ; .S'. 



maurus, 307 

 Scorpion, 297 f. 

 Scorpionidae, 30G 

 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 ; meso- 



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 



Scorpiops, SOS 



Scotinoecus, 390 



Scott, on fish-parasites, 69 n. 



Scourfield, on Cladocera, 51 n. 



Scutum, of Spiders, 317, 394 ; of Ticks, 

 469 



Scyllarus, 167 ; S. arctvs, 165, 167 



Scytudes thoracica, 393 



Scytodidae, 393 



Segestria, 395: S. perjida, 369; .S'. seno- 

 adata, 395 



Segestriinae, 395 



Segmentation, of Crustacea, 5 f. ; of 'J'rilo- 

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

 Limulus, 263 ; of Pycnogons, 501 f. 



Seleuopinae, 41^ 



Selenoijs, 414 



Semper, 521 n. 



Senoculidae, 4IS 



Senoculus, 4I8 



Sense-organSj of Arachnids, 257 ; of 

 Litmdus, 271, 272 ; of Tardigrada, 482 ; 

 of Pentastomida, 491 (see also Auditory 

 organ, Eyes) 



Scrgestes, 162 



Sergestidae, 162 ; Zoaea, 161 ; distribu- 

 tion, 204 



Serolidae, 126 



Serolis, 126 ; distribution, 200 ; .S. 

 antarctica, S. hronleyana, 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 Inaclms, 103 ; of Tanaidae, 

 123 ; of Gnathia, 125 ; of Prawns, 

 159 ; of Gelasimus, 194 ; of Spiders, 

 379 



Sheet-webs, 352 



Shell-gland, 13 



Shipley, A. E., introduction to Arachnida, 

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

 digrada, 475 f. ; on Pentastoir.ida, 

 488 f. 



Shrimp, 153, 158, 164, 198, 199 



Shurnardia, 245 



Shumardiidae, 245 



Sicariidae, 327, 393 



Sicarius, 393 



Sida, 51 ; reproduction, 49 ; ^\ cryslnlliiw, 



22, 39, 40 

 Sididae, 51 ; appendages, 40 ; heart, 43 

 Siebold, von, 464 n. 

 Sigilla, 410 

 Silvestri, 473 n. 

 Sionocephalus, 52 ; S. vdidns, 38, 39 ; 



appendages, 41 

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

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

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



