366 



INDEX 



Sporocyst, 179 

 Sporozoa, 141 

 Squamata, 257, 261 

 Squid, 220 

 Squirrel, 293 

 Starfish, 192, 197 

 Stegocephalians, 331, 332 

 Sting ray, 234 

 Stone-fly, 71 

 Stone-lily, 202 

 Stork, 272 

 Symmetry, 197 

 Symphyla, 65 



Tabanidse, 109 

 Tapeworm, 180 

 Tapir, 295 

 Teeth, 234, 287 

 Teleostomi, 235 

 Teredo, 219 

 Termite, 72 

 Tern, 273 

 Tertiary Age, 334 

 Testudinata, 257, 264 

 Tettiginse, 76 

 Threadworms, 183 

 Thrips, 72 

 Tick, 132 

 Tipulidse, 106 

 Tissues, 148 

 Toad, 251 

 Torpedo, 234 



Tortoise, 264 

 Tracheae, 68 

 Tree frogs, 256 

 Trematoda, 178 

 Trichina, 187 

 Trichoptera, 102 

 Trilobites, 328, 329, 330, 332 

 Trimera, 116 

 Triploblastic, 16 

 Trochophore, 190 

 Tryaxalinae, 76, 77 

 Tube-foot, 192 

 Tunicata, 226 

 Turbellaria, 174 

 Turtle, 264 



Variation, 350 

 Vertebrata, 228, 230 

 Vesalius, 8 

 Vitalism, 30 

 Vorticella, 143 



Walking-stick, 74 

 Walrus, 292 

 Wasp, 118 

 Weismann, 351 

 Whale, 296 

 White ant, 72 



Zoogeography, 5 

 Zoology, 5 



