378 
Trematoda, 19, 117; general characters 
of, 121 
Trepangs, 19, 
Trichecus, 383. 
Trichina, 124. 
Trigonocephalus, 268. 
Trilobita, 20, 145. 
Tringide, 294. 
Trionycide, 22, 263. 
Triton, 28, 251. 
Trochilide, 24, 392. 
Troglodytes, 25, 344. 
Trogonida, 24, 300. 
Trophosome, 68. 
Trout, 22, 
Tube-feet of Hchinus, 107. 
Tube-worms, 19. 
Tubicola, 19, 133. 
Tubifex, 138. 
Tubipora, 18, 98. 
Tubularia, 17, 66. 
Tubularida (see Corynida). 
Tunicata, 21, 181, 183 ; general characters 
of, 188, et seq. 
Tupaia, 341. , 
Turbellaria, 19, 117 ; general characters 
of, 122. 
Turkey, 24, 297. 
Turn-stones, 24, 294. 
Turritella, 200. 
Turtles, 28, 257, 258, 260, 261. 
UMBO, 195. 
Umbrella of Lucernarida, 86, 
Univalve Shells, 200. 
Ungulata, 24, 313; general characters 
of, 322, et seq. 
Upupine, 302. 
Uraster, 19, 110. 
Urodela, 23, 248, 249. 
Urside, 25, 334. 
Vacuores, of Amaba, 32; of Parame- 
cium, 49. 
Vaginicola, 51, 52. 
Valkeria, 186. 
Vampire Bats, 25. 
Varanide, 23, 270. 
Veil of gonophores, 69, 74; of necto- 
calyces, 76; of naked-eyed Meduse, 
81 , 
Velella, 77, 78. 
Venus’ Flower-basket, 17. 
Venus’ girdle, 18, 102. 
Vermes, 129, 
Vertebra, structure of, 218. 
INDEX. 
| Vertebrata, 15, 22; general characters 
of, 215, ef seq. ; skeleton of, 2173 diges- 
tive system, 221; blood of, 223; 
respiration of, ib. ; nervous system 
of, 224; reproduction of, ib.; divi- 
sions of, ib. 
Vesicle, contractile, of, Protozoa, 27, 32, 
49 
Vesperiilionide, 25. 
Vespide, 21, 173. 
Vinegar Kel, 19. 
Vipera, 23, 268. 
Viperide, 23, 266, 267, 263. 
Virguiaria, 18, 98. 
Viverride, 25, 335. 
Vogtia, 76. 
Vorticella, 17, 51. 
Vulture, 24, 804. 
Vulturide, 24, 
Waders (Birds), 28, 289, 292. 
Wah, 334. 
Walrus, 381, 333, ° 
Wapiti, 328. 
Warblers, 302. 
Wart-hog, 324, 325. 
Wasps, 21, 173. 
Water-fleas, 20. 
Water-hens, 23, 293, 294. 
Water-mites, 2). 
Water-mole, 341, 
Water-newts, 23. 
Water-vascular system, 103, 104, 106, 
119, 121, 122, 123, 125, 126. 
Water-worms, 19. 
Weasel, 25, 334, 
Whale, 218, 307, 312, 320. 
Whalebone whale, 24. 
Wheel animalcules, 19. 
Whelk, 22, 180, 199. 
White-ant, 21. 
Wolf, 25, 331, 335. 
Wolverine, 334, 
Woodcock, 24, 294. 
Wood-lice, 2), 143. 
Wood-peckers, 24, 289, 299. 
Wren, 23. 
aA iphosura, 144. 
ZEBRA, 25, 323, 824, 
Zoantharia, 18, 92 ; malacodermata, 92 ; 
sclerobasica, 97; scleroder mata, 94. 
Zoanthus, 93. 
Zooid, 58, 59. 
Zoology, definition of, 3. 
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