57§ 
INDEX. 
Sarcopsyllidx, 76. 
Sarcopsyllus, 76. 
Sarcoptcs, 216. 
Sarcoptidae , 245. 
Satumia, 94. 
Saturniidx, 93. 
Satyrinse, 84. 
Satyr us, 88. 
Saw-Flics, 15, 16. 
Saxicava, 415. 
Saxicavidse, 415. 
Scale-Insects, 198. 
Scalaria, 392. 
Scalariidx, 392. 
Scallops, 409. 
Scaphander, 361. 
Scaphopoda, 400. 
Scarabaeus, 142. 
Scarites, 132. 
Schendyla, 208. 
Schistocerca, 181. 
Schizochiton, 399. 
Schizoglossa, 343. 
Schizonotidx, 218. 
Schizonotus, 218. 
Schizopoda, 271. 
Schizostoma, 470. 
Sciara, 55. 
Scirtopoda, 447. 
Scissurella, 396. 
Sclerocrangon, 569. 
Sclerothamnus, 539. 
Scobiculariidx, 413. 
Scolia, 33. 
Scoliidx, 32. 
Scolopendra, 206. 
Scolopendrella, 208. 
Scolopendridae, 206. 
Scolopocryptopidae, 206. 
Scolytidx, 152. 
Scorpio, 215. 
Scorpion-Flies, 162. 
Scorpionidx, 215. 
Scorpions, 204, 214. 
Scotoplana, 313. 
Scrobicularia, 413. 
Scutellera, 188. 
Scutibranchiata, 394. 
Scutigera, 205. 
Scutigeridx, 205. 
Scutum, 397. 
Scyllaea, 356, 359. 
Scyllaridae, 263. 
Scyllaridea, 262. 
Scyllarus, 263. 
Scyphistoma, 495. 
Scyphomedusae, 492. 
Sea-Anemones, 474, 495. 
Sea-Cucumbers, 312. 
Sea-Fans, 514. 
Sea-Hares, 363. 
Sea-Mats, 420, 422. 
Sea-Mouse, 433. 
Sea-Pens, 511. 
Sea-Slater, 276. 
Sea-Spiders, 248. 
Sea-Urchins, 308. 
Segestria, 227. 
Sdenocosmiinx, 225. 
Semifusus, 376. 
Semperella, 539. 
Sepia, 337. 
Sepiidx, 337. 
Scpiola, 336. 
Sepiolidx, 336. 
Septibranchiata, 418. 
Sergcstidx, 271. 
Sericostomatidx, 162. 
Serolidce, 274. 
Serolis, 274. 
Serpnla, 438. 
Serpulidse, 437. 
Sesiidse, 100. 
Shelled Slugs, 343. 
Shell-Fish, 320. 
Ship-Worm, 417. 
Shrimps, 268. 
Sialidae, 163. 
Sialis, 163. 
Sicyonis, 502. 
Silk-Spioners, 95. 
Silk-Worm, 95. 
Silpha, 138. 
Siiphidx, 137. 
Silver-Fish, 203. 
Simulia, 58. 
Single-Bayed Sponges, 541. 
Sipho, 376. 
Siphonaria, 364. 
Siphonariidse, 364. 
Siplionophora, 211, 481. 
Sipmnculus, 444. 
Sir ex, 16. 
Siricidee, 16. 
Sironidae, 240. 
Sistrum, 380. 
Sitones, 149. 
Sitophilus , 151. 
Six-Bayed Sponges, 536. 
Skippers, 92. 
Slimonia, 251. 
Slugs, 344. 
Smerinthus, 97. 
Smicra, 22. 
Snails, 345. 
Snake-Flies, 163. 
Snout-Moths, 118. 
Social Wasps, 40. 
Solariidx, 387. 
Solarium, 387. 
Solenidx, 415. 
Solenomya, 404. 
Solenomyidm, 403. 
Solifugx, 235. 
Solitary Bees, 42. 
Solitary Wasps, 40. 
Solpuga, 235. 
Solpugidae, 235. 
Sparassus, 232. 
Spathegaster, 19. 
Sphserium, 414. 
Sphseroma, 274. 
Sphxromidx, 274. 
Sphxrotherium, 210. 
Sphserularia, 452. 
Sphegidx, 34. 
Sphex, 35. 
Sphingidx, 95. 
Sphinx, 98. 
Spiders, 204, 220. 
Spider-Shells, 385. 
Spilographia, 71. 
Spinach-Moth, 117. 
Spirachtha, 135. 
Spirifer, 431. 
Spiriferidx, 430. 
Spirostomum, 568. 
Spirostreptidoe, 211. 
Spirostreptus, 212. 
Spirula, 338. 
Spirulidx, 338. 
Spisula, 413. 
Spondylidx, 410. 
Spondylus, 410. 
Spongclia, 542. 
Sponges, 526. 
Spongicola, 270. 
Spmigillidx, 544. 
Spongiobranchsea, 366. 
Sporozoa, 565. 
Squids, 328, 334. 
Squilla, 273. 
Squillidee, 272. 
Stag-Beetle, 141. 
Staghorn-Fly, 72. 
Staircase-Shells, 387. 
Standella, 413. 
Staphylinidaz, 134. 
Star-Fishes, 304. 
Stauropus, 99. 
Stem Saw-Flies, 15. 
Stenopteryx, 75. 
Stentor, 567. 
Stephalia, 483. 
Stick-Insects, 182. 
Stilbum, 26. 
St. Mark’s Fly, 58. 
Stomatopoda, 272. 
Stomoxys, 68. 
Stone-Flies, 171. 
Stone-Lilies, 297. 
Strangalia, 153. 
Stratiomyidx, 61. 
Stratiomys, 61. 
Streptaxis, 343. 
Strepopomatidee, 386. 
Streptocaulus, 516. 
Streptophiurse, 307. 
Strobila, 495. 
Strombidse, 384. 
Strombus, 385. 
Strongylidee, 453. 
Strongylocentrotus, 310. 311, 315. 
Strophocheilus, 347. 
Struthiolariidx, 385. 
Stylasteridx, 488. 
Styliola, 368. 
Stylocellus, 241. 
Stylogaster, 64. 
Stylommalophora, 342. 
Stylonychia, 565. 
Stylopidx, 148. 
Submytilacea, 410. 
Succinea, 349. 
Succineidx, 348. 
Sun-Animalcules, 559. 
Surcula, 372. 
Swallow-Tails, 91. 
Swift Moth, 103. 
Sycandra, 535. 
Sycon, 536. 
Sycotypus, 376. 
Synapta, 312. 
Synergies, 21. 
Syngamus, 454. 
Synlomidse, 101. 
