INDEX 



Teeth, 195 ; of Archatopieryx, 249 ; of 

 Frog, 233 ; acrodont (Lizards), 239 ; 

 bunodont, 251, 263 ; carnassial or 

 sectorial, 268 ; dental plates, 229 ; 

 dermal denticles, 195, 217 ; diphyo- 

 dont, 250 ; heterodont, 250 ; homo- 

 dont, 269 ; hypsodont, 263, 271 ; 

 lophodont, 251/271 ; monophyodont, 

 266, 269; pleurodont (Lizards), 239; 

 secodont, 251 ; selenodont, 251, 263 ; 

 thecodont (Oocodilia), 240 



Teleostei (Modern Bony Fishes), 228 



Tentaculocysts or Rhopalia, 84 



Tentorium, 268 



Testis, 214 



Texas cattle-fever or redwater, Cause of, 

 <><>. 07, 162 



Thalassicolla, 22, 34, 35 



Thylacinus (Tasmanian Wolf), 261, 267 



Thymus " gland," 207, 208 



Thyroid gland, 207, 208 



Tick-fever, Human (African relapsing 

 fever), Cause of, 47, 161 



" Tick-paralysis," Cause of, 162 



Ticks, 42, 157, 158-163, 159, 160 ; modes 

 of infection by ticks, 47, 66 ; " seed- 

 tick " larva, 161 



Ti"-er (Felis), 262, 268 



Toad (Bufo), 232 ; Surinam Toad (/'/ 

 232 



Toraaria larva, 179 



Torpedo, 227 



Tortoises and Turtles (Chelonia), 240 



Trachea (windpipe), 212, 241, 256 



Tracheae (air-tubes), 141 



Trematoda (Flukes), 90, 91 



Treponema, 20, 46, 47 



Trichina, syn. Trichinella, 108, 109 



Trichinosis, 108 



Trichocephalus, syn. Trichuris, 108 



Trichocysts, 19 



Trichodectes, 99, 142 



Trichodina, 53 



Trochosphere larva, 1 22 



Trophoblast. 259 ; trophoblastic villi, 

 259 



Trophozoite, 55, 61 



Trupanoplasma, 20, 40 



TiTfpanoaoma, 23. -Hi, 41, 44, 1 4:5, 144 



Trypanosome fever, 1)5 



Trypanosomes or Haemoflagellates. L'.I 



40-45 : types of, 40 

 Tsetse-flies. See Oloesina. 

 Tube -feet, 165 

 Tuhiilarin. 75, 83 

 Tunicata or Urochorda (Ascidians), 



181 ; Classification of, 184 

 Tunicata compared with Ampliin.ru* 



Craniata, 193 



Turbellaria ( Planarians), 90 

 Tympanum (middle ear or drum). L'IM 

 Typhlops, 16, 239 

 Typhlosole, 119 

 Typhoid fever, Carrier of, 145 

 Typhus, Carrier of, 146, 155 



UMBILICAL CORD, 260 



Umbilical vesicle, 259 



Umbilicus or navel, 260 



Undu latins membrane, 40, 48 



Un ? ulata, 263, 269 



Unicellular animal, 16 



Ureter or metanephric duct, 213 



Urethra, 258 



Urochorda. See Tunicata. 



Uterus, 97, 104, 259 ; bicornuate, 250 



masculhius, 258 

 ' : Urticaria epidemica," cause of, 142 



VACUOLES, 6 ; contractile, 27, 48 ; fo 



27, 28 ; gas, 29 ; non-contractile, 2< 

 Vas deferens, 213, 214 

 Vas efferens, 214 

 Veins and Venous System. See Blc 



System. 



Veliger larva, 166 

 Velum, 83 (craspedon) ; of Amphiox 



186 ; of Cyclostomata, 215 

 Vermiform appendix, 208 

 Vertebra, parts of a, 197 ; amphicoeloi 



heterocoelous, opisthocoelous. proc< 



Ions, 197 



Vertebral Column. See Skeleton. 

 Vertebral plate, 248 

 Vertebrata or Chordata, 177 ; (Jlassific 



tion of, 178 



Villi, Trophoblastic, 259 

 Visceral Arches, 1!9 



Clefts. See Gill slits. 



