INDEX 



281 



Terebra, 196, 201 

 Terebratula, 163, 164 

 Terebratulina, 163 

 Teredo, 186, 201 

 Teretonympha, 35 

 Tergiim, 241 



Termites, Protozoa of, 35 

 Tessera, 102 

 Tethys, 201 



Tetrabranchia, 199, 201 

 Tetraphyllidea, 126 

 Tetrarhynchus, 122, 126 

 Tetrazonida, 87 

 Texas fever, 229 

 Thorax, 241 

 Thousand-leg, 233 

 Thyone, 182 

 Thysanoptera, 251 

 Thysanura, 238, 251 

 Tibia, 241 

 Tick fever, 229 

 Ticks, 228 



Tiedemann's bodies, 172 

 Trigoid bodies, 67 

 Tintinnidium, 57 

 Tintinnus, 57 

 Tissues, 60 

 Tokophrya, 54, 58 

 Tooth shells, 192 

 Torsion in gastropods, 194 

 Toxopneustes, 182 

 Tracheae, 73, 225, 244 

 Tracheal gills, 73, 223 

 Trachella, 31 

 Trachelomonas, 56 

 Tracheoles, 244 

 Trachydermon, 201 

 Trachylinae, 93, 102 

 Trachymedusae, 102 

 Trachynema, 102 

 Trematoda, 112, 125 

 Trench fever, 55 

 Treponema pallidum, 38 

 Triaenophorus, 126 

 Triarthra, 143 

 Triarthrus, 209, 222 

 Trichinella, 4, 131, 132, 136 

 Trichites, 50 

 Trichocyst, 50 



Trichodina, 58 



Trichomonas, 35, 36 



Trichonympha, 35, 56 



Trichoptera, 251 



Trichostrongylus, 136 



Trichosyringata, 136 



Tricladidea, 110, 125 



Tridacna, 187 



Trigonia, 201 



Trilol)ita, 222 



Trilobite larva of Limulus, 226 



Trilobites, 205, 209 



Triopha, 201 



Triviimi, 171 



Trochal disc, 139, 140 



Trochanter, 241 



Trochelminthes, 138, 143 



Trochophore, 138, 145, 148, 150, 156, 



163, 184, 257 

 Trochosphaera, 140, 143 

 Trochus, 196, 201 

 Trypanorhyncha, 122, 126 

 Trypanosoma, 31, 36, 56 

 Trypanosomes, 31, 36 

 Tse-tse fly, 37 

 Tube-feet, 167 

 Tubifex, 157 

 Tubipora, 103 

 Tubularia, 102 

 Tubulipora, 164 

 Tunicata, 1 

 Turbellaria, 108, 125 

 Tylenchus, 133 

 Tympanum, 80, 240 

 Typhus fever, 55 



U 



Umbo, 186 



Undulating membrane, 31, 52 



Unio, 201 



Upogebia, 223 



Urnatella, 161, 164 



Uroglena, 56 



Uroleptus, 57 



Uroplectus, 234 



Urostyla, 57 



Uterus, 76, 114 



