458 
ZOOLOGY 
Thecidium, 176 
Thecosomata, 207 
Thelyphonus, 404 
Thenea, 40 
Theonella, 41 
Theridion, 415 
Thomisidae, 416 
Thoracica, 271 
Thoracostraca, 281 
Threadworms, 124 
Thrips, 344 
Thripsidae, 344 
Thysanoptera, 344 
Thysanozoon, 81, 95 
Thysanura, 319, 334 
Tibia, 324 
Tiedemann’s bodies, 229 
Tinea, 352 
Tineidae, 349, 351 
Tingitidae, 364 
Tipula, 370, 373 
Tipulidae, 371, 372 
Tomocerus, 333 
Tornaria, 430 
Torquatella, 26 
Tortricidae, 352 
Tortriz, 352 
Trachea, 327 
Tracheata, 253, 300, 321 
Trachomedusae, 59 
Tractellum, 25 
Trematoda, 80, 102, 104, 
112 
Tremoctopus, 221 
Trichina, 129 
Trichinosis, 129 
Trichocysts, 28 
Trichodina, 26, 27 
Trichoptera, 348 
Tricladida, 90, 95, 114 
Trigonia, 192 
Trivium, 227, 246 
Trochanter, 323 
Trocheta, 134 
Trochosphere, 187 
Trochus, 201 
Trombidiidae, 421 
Tubicola, 150 
Tubifex, 103 
Tubipora, 71, 72 
Tubularia, 50, 52, 53 
Tunicata, 34, 435 
Turbellarians, 77, 80, 89, 
114, 122; 131, 138, 
140 
Tylenchus, 128 
Tyroglyphidae, 422 
Tyroglyphus, 422 
Unio, 421 
Uroceridae, 377 
Urochaeta, 145, 149 
Urochordata, 434 
VALVATA, 203 
Vampyrella, 6 
THE END 
Vanessa, 355 
Vegetable kingdom, 2 
Velella, 58, 59 
Veliger, 189 
Velinea, 45 
Velum, 47, 60 
Vertebrata, 25, 35, 79, 
103 
Vespa, 384 
Vespariae, 382 
Vespidae, 382 
Vibracula, 186 
Vitellarium, 81, 87 
Vortex, 81, 89, 94 
Vorticella, 27 
WALDHEIMIA, 169, 172 
Winter eggs, 259 
** Worms,” 103 
XIPHOSURA, 389 
YELLOW CELLS, 20 
Yungia, 95 
ZoAEA Larva, 268, 279 
Zoantharia, 64 
Zooecium, 180 
Zooids, 73 
Zooxanthella, 21 
Zygobranchiata, 197 
Printed by R. & R. CLark, Edinburgh 
