410 



ZOOLOGY 



82; poisonous, 91-92 : sexual di- 

 morphism of, 92 ; spinning habits of, 

 83; wandering, 8K. 



Spider-crabs, 107, 123. 



Spider webs, economic importance of, 

 90. 



Spinning habits, in spiders, 83. 



Spiny ant-eater, 322. 



Spiny lobster, 101. 



Spirulidaj, 174. 



Spizella, 285. 



Sponges, 205. 



Spontaneous generation theory, 223. 



Spoonbill, habitat of, 247. 



Spore of Infusoria, 223. 



Sporozoa, 227, 229. 



Spotted sandpiper, 306. 



Spreading adder, 276. 



Spring azures, 18, 22. 



Square crabs, 123. 



Squash bug, 13. 



Squids, 171. 



Squilla, 111. 



Squirrel, 320. 



Stable-fly, 61. 



Stag-beetles, 49, 58. 



Staphylinidse, 47, 58. 



Starfish, 192,203; abnormalities of , 196; 

 development of, 193-194; distribution 

 and habitat of, 192; economic im- 

 portance of, 193 ; food of, 193 ; larval 

 stages of, 195; metamorphosis of, 

 195 ; systematic position of, 192. 



Stentor, 229 ; habitat of, 224-225. 



Sterna, 307. 



Sticklebacks, 238, 252. 



Stomatopoda, 111, 122. 



Storks, 305. 



Strongylocentrotus, 199. 



Sturgeons, 247 ; economic importance, 

 habitat, food of, 247. 



Suckers, 241, 253. 



Suctoria, 225, 229. 



Sunfish, 235, 252. 



Swallows, 292. 



Swarm of bees, 32. 



Swifts, 301, 302. 



Sycon, 206. 



Syllidee, 159. 



Sylvicolidse, 317. 

 Sylviidse, 285, 315, 316. 

 Synapta, 202, 203. 

 Synotus, 329. 

 Syrphidse, 66, 73. 

 Syrpus, 64. 



Tabanidse, 65. 



Tabanus,65, 66. 



Tsenia, 157. 



Talorchestia, 112. 



Tanagers, 292. 



Tanagridse, 292. 



Tapeworm, 156 ; human, 157. 



Tapirs, 327. 



Tarantula, 92. 



Teeth of fossil birds, 314. 



Teleostei, 252. 



Tellinidse, 190. 



Tenebrio, 52. 



Tenebrionidse, 52, 61. 



Tent caterpillars, 26; egg masses of, 



26 ; nests of, 27. 

 Terebellidaj, 159. 

 Teredidse, 181, 188. 

 Teredo, 181. 

 Termes, 11. 

 Termites, 11. .. 

 Terns, 306, 307. 

 Terrapene, 275. 

 Territelarise, 85, 95. 

 Testudinidse, 275. 

 Texas fever in cattle, 228. 

 Thalassinidae, 105, 124. 

 Theclas, 22. 



Theridium, 80, 82; food of, 82. 

 Thomisus, 90. 

 Thrushes, 385. 

 Tineidse, 29, 42. 

 Tigers, 328. 

 Tiger-beetles, 45. 

 Tiger-moths, 24, 41. 

 Tipulidae, 68-69. 

 Titmice, 286. 



Toadtishes, 252 ; habitat of, 236. 

 Tornatinidae, 176. 

 Tortricidse, 29, 42. 

 Toucans, 299. 



