614 



INDEX. 



Stechfliege, 570. 

 Stelleridca, 292. 

 Stemmata Arthropoda, 



408. 



Stenorhynchus, 478. 

 Stentor, 205. 

 Sk'phanoceros, 401. 

 Stephanosphiera, 195. 

 Sterile polyp, 237. 

 Sternum, 525. 

 Stigmata, 71. 

 Stiiettfliegen, 576. 

 Sting, 592. 

 Stipes, 523. 

 Stomatopoda. 470. 

 Stomobrachium mira- 



bile, 239. 

 Stomoxys, 570. 

 Stone canal, 272. 

 Stratiomys, 577. 

 Strepsiptera, 5(35. 

 Stridulantia, 571. 

 Strobila, 125, 255, 250. 

 Strongylidae, 347. 

 Strongylocentrotus, 296. 

 Strongylus, 352. 

 Struggle for existence, 



145. 



Stutzkjifer. 590. 

 Stylaria, 386. 

 Stylasteridse, 241. 

 Stylochus, 316. 

 Stylonychia. 205. 

 Stylops, 566. 

 Suberites, 229. 

 Subgenital pits of Dis- 



cophora, 260. 

 Submentum, 524. 

 Suboesophageal gan<j'- 



lion, 82. 



Sub-species, 141. 

 Succession of similar 



typ.es, 171. 

 Suctoria, 205, 446. 

 Summer eggs of Phyl- 



lopoda, 418. 

 Summer eggs of Roti- 



fera, 403. 

 Summer eggs of Turbel- 



laria, 313. 



Supra-oesophageal gang- 

 lion, 80. 



Swallow tail, 585. 

 Swammerdam, 133. 

 Sweat glands, 77. 

 Sycaltis, 222. 

 Sycandra, 222. 

 Sycetta, 220. 

 Sycilla, 222. 

 Sycon, 221 , 222. 

 SyconidEe, 212. 217, 222. 



Sycortis, 222. 

 Syculmis, 222. 

 Sycyssa, 220. 

 Syllis, 379. 

 Syllis prolif era, 372. 

 Symbiotes, 492. 

 Sympathetic, 82. 

 Synapta. 278, 283, 298, 



299. 



Synaptidfe, 283. 

 Syrphus, 576. 

 System, Meaning of, 150. 

 System of Aristotle, 132. 



Cuvier, 136. 



Linnaeus, 135. 

 Pliny, 132. 



Present day, 

 138. 



Tabanidse, 574, 57(i. 

 Tabanus, 577. 

 Tachina, 576. 

 Tachinse, 541. 

 Tactile corpuscles, 47. 

 Ttenia, 327, 330, 331, 335. 

 Tsenia cucumerina, 329. 

 Tasniadas, 334. 

 Talitrus, 455. 

 Tanais, 459. 

 Tanystomata 576. 

 Tauzfliegen,' 576. 

 Tapetenmotte, 582. 

 Tapeworm 326. 

 Tarantula, 504. 

 Tardigrada, 496. 

 Tarsus, 527. 

 Taste, 92. 

 Tegenaria, 504. 

 Tegmina, 528. 

 Tegulas, 591. 

 Teleas, 594. 

 Teleas, larva of, 549. 

 Tulephorus. 589. 

 Telepsavus, 382. 

 Telepsavus- (JliEetopterus 



larva, 378. 

 Telolecithal, 112. 

 Telotrocha, 378. 

 Telson of thoracostraca 



461. 



Tenebrio, 589. 

 Tenthredo, 594. 

 Teratology, 51. 

 Terebella, 382. 

 Terebra, 592. 

 Terebrantia, 594. 

 Terga of Cirripedia, 439. 

 Termes, 561. 

 Termites, 559. 

 Terricolas, 385. 

 Tesselata, 289. 



Testis, 97. 

 Tetracoralla, 230. 

 Tetranychus, 495. 

 Tctraphyllidie, 338. 

 Tctraplasta, 194. 

 Tetrapneumones. 504. 

 Tetrarhynchus, 327, 338. 

 Tetrastemrua, 341, 342. 

 Tettigonia, 571. 

 Tettix, 558 

 Textularia, 187. 

 Thalamophora, 180. 

 Thalassema, 392. 

 Tbalassicolla, 190. 

 Thalassina, 477. 

 Thamnocnidia, 241. 

 Theca of Actinozoa,228. 

 Thecla, 585. 

 Thecodontid^, 175. 

 Thelyphonus, 508. 

 Thereva, 576. 

 Theridium, 502, 505. 

 Theriodonta, 175. 

 Thomisus, 504. 

 Thoracostraca, 460. 

 Thi'eacl cells, 212. 

 Threadworms, 344. 

 Thrips, 559. 

 Thysanopoda, 475. 

 Thysanozoou, 316. 

 Thysanura, 553. 

 Tibia, 526. 

 Ticks, 493. 

 Tiger-beetles, 590. 

 Tillodontia, 173. 

 Tillotherium, 173. 

 Tiina, 242. 

 Tinea, 582. 

 Tipula, 578. 

 Tipularia;, 577. 

 Tissue, 29. 

 Todtengraber, 590. 

 Tomopteris, 380. 

 Tornaria. 300. 

 Tortoiseshell butterfly, 



585. 



Tortrix, 582. 

 Touch, 84. 

 Toxodon, 170. 

 Toxodontia, 173. 

 Toxopneustes, 296. 

 Tracheae, 70, 410. 

 Trachelius, 204. 

 Tr achy medusa?. 239, 242. 

 Trachyuema, 239, 242. 

 Trachys, 589. 

 Transverse plane of 



Ctenophora, 262. 

 Trap-door spider, 504. 

 Trematoda. 316. 

 Trepang, 299. 



