INDEX 



507 



SLaggcrs of sheep, 82. 



StaphylinidEe, 66. 



Starfish, 246; abnormaUties of, 2.51; 

 development, 247 ; distribution, 

 251 ; haVjitat, 251 ; serpent-stars, 

 253 ; study of embryology, 246 ; 

 systematic position of, 251. 



Stegomyia, 86. 



Stentor, 287. 



Sterna, .392. 



Stickleback, 315. 



Sting of scorpions, 116. 



Stink-bugs, 22. 



Stolons, 279. 



Stomach of crickets, 6. 



Stomapoda, 144. 



Storks, 393. 



Strongylocentrotus, 256. 



Sturgeons, 323. 



Stylactis, 266. 



Subterrestrial organisms, 168. 



Suckers, 317. 



Suctoria, 288. 



Sunfish, 313. 



Swallow, 407. 



Swallow-tails, 40. 



Swamincrdam, 464. 



Swarming of bees, 50. 



Swifts, 401. ^ 



Swimming birds, 392. 



Svcon, 263. 



Synapta, 259. 



Syrphidfe, 82. 



Tabanus, 83. 



Tajnia, 197. 



Talorchestia, 146. 



Tanagers, 407. 



Tapeworm, 195, 197. 



Tapirs, 445. 



Tarantula, 113. 



Tarsus, 5. 



Teeth, amphibia, 331; birds, 419; 



echinoderms, 242 ; fish, 304, 305 ; 



mammals, 435. 

 Tentacles, 271. 

 Tent-caterpillar, 44-46. 

 Tercdida;, 230. 

 Termites, 26, 52. 

 Tern, 392. 

 Testudinidee, 363. 

 Thalassinida;, 138. 

 Theclas, 41. 



Theory of evolution, 469. 

 Thomisus, 112. 

 Thorax, 3. 

 Thrushes, 413. 



Tibia, 5. 



Ticks, 117. 



Tiger, 446. 



Tiger-beetles, 61, 63. 



Tiger-moths, 42. 



Tiger swallow-tails, 40. 



Tineids, 47. 



Tipulidse, 87. 



Titmice, 413. 



Toad, 347. 



Toadfish, 313. 



Tomato worm, 35, 41. 



Tortricids, 47. 



Toucans, 399. 



Trachea, 13, SO ; of cricket, 6. 



Tree-hopper, 24. 



Tree-spari'ow, 407. 



Tree-toad, 345. 



Trichina, 191. 



Triloliite, 160. 



Trionyx, 363. 



Trochilus, 401. 



Troglodytes, 413. 



Trout, 310. 



True bugs, 22. 



Trunk, 3. 



Tsetse-fly, SO. 



Tube-weavers, 105. 



Tubifex, 172. 



Tubularian hydroids, 267. 



Tulxilarida;, 267. 



Tumble-ljugs, 69. 



Tunicates, 290. 



Tunnel-weavers, 105. 



Tardus, 415. 



Turkey, 395. 



Turkcy-l:>uzzard, 396. 



Turtles, 351, 362 ; general form of 

 body, 352 ; marine, 362 ; muscular 

 system of, 355 ; nervous system 

 of, 355 ; organs of circulation, 353 ; 

 excretion, 354 ; nutrition, 352 ; re- 

 production, 354 ; respiration, 354 ; 

 sense-organs, 355 ; skeleton, 352. 



Tussock moth, 46. 



Twin-spotted sphinx, 41. 



Tyrannida;, 402. 



U 



Unionidaj, 228. 



Unios, 228 ; development of, 229 ; 

 economic value of, 229 ; spawning 

 season, 229. 



Urodela, 32S, 338 ; early develop- 

 ment of, 343. 



Urosalpinx, 218. 



Uses of spinning instinct, 110. 



