428 



INDEX 



Trematoda, 35, 77 

 Tremex columba, 175, 176 

 Trichechidae, 366 

 Trichinella spiralis, 41 

 Trichinosis, 43 

 Tridacna gigas, 80 

 Tritonidae, 83 

 Tritons, 232 

 Trochelminthes, 46 

 Trochosphere, 68 

 Troglodytidae, 305 

 Trogon, 298 

 Tube-weavers, 106 

 Tubinares, 283 

 Tunicata, 192 

 Turbellaria, 34 

 Turdida;, 305 

 Turtles, box, 253 



sea, 252 



soft-shelled, 252 



tortoise-shelled, 252 

 Tylenchus triHci, 41 

 Tympanic membrane of insects, 

 Typhionectes, 229 

 Typhlomolge rathbuni, 231 

 Typhlosole, 66 

 Tyrannida;, 301 



Uloborid^, 107 

 Ungulata, 329 

 Urochorda, 192 

 Urodela, 229 

 Urosalpinx cinerea, 83 

 Ursidse, 359 



Vacuole, 3 

 Vampires, 371 



123 



Varanus, 248 



niloticus, 248 

 Vertebrata, 195 

 Vespa, 182 

 Vespertilionidse, 371 

 Viceroy, 172 

 Viverridae, 365 

 Vorticella, 7 

 Vulpes, 361 



Walking-sticks, 137 

 Wallace, 388 

 Warblers, 304, 305 

 Warning colors, 118 

 Water birds, 281 



bugs, 142 

 Waxwings, 304 

 Weasel, 360, 361 

 Weismann, 389 

 Whales, 326, 328 

 Whip-poor-will, 300 

 Whitman, 390, 391 

 Wild turkey, 292 

 Wolf, 362 

 Wombats, 322 

 Wrens, 305 



XiPHOSURA, 110 



Yellow-fever mosquito, 157 

 Yellow-jackets, 182 



Zygote, 385 



