INDEX. 



615 



Trifenophorus, 338. 

 Trichina, 347, 348, 353, 



354, 355. 



Trichocephalus, 348, 353. 

 Trichodectes, 336, 568. 

 Trichodes, 589, 599. 

 Trichodina, 205. 

 Trichomonas, 194. 

 Trichoptera, 56i. 

 Tricliosomum, 353. 

 Trichotrachelidge, 353. 

 Trigonia, 599. 

 Trilobita, 483. 

 Triphaena, 583. 

 Tristomum coccineurn, 



323 



Trivium, 269. 

 Trochal disc of Rotifers, 



401. 



Trochanter, 526. 

 Troctes, 559. 

 Trogus, 595. 

 Trombidium, 495. 

 Trypeta, 576. 

 Tube-spinners, 504 

 Tubicinella, 446. 

 Tubicolas, 380. 

 Tubicolaria, 401, 404. 

 Tubifex, 385. 

 Tubipora, 231. 

 Tubitelae, 504. 

 Tubularia, 239. 241. 

 Tubulariaa, 241. 

 Turbellaria, 309. 

 Turbinolia, 232. 

 Tylenchus, 357. 

 Type, 52. 



Type of Desor, 341. 

 Typhis, 456. 



Typhlosole of Lumbri- 



cus, 383. 



Tyroglyphus, 492. 

 Umbellula, 231. 

 Upper lip of Crustacea, 



412. 



Uroceridas, 594. 

 Uropoda of Crevettina, 



454. 

 Uterine bell of Acantho- 



cephala, 361. 



Uterus, 99. 



Vagina, 99. 



Vampyrella, 194. 



Vanessa. 553, 585. 



Variability, 145. 



Varieties, 141. 



Variety,. Relation of to 

 species, 149. 



Vascular pore of Nema- 

 toda, 346. 



Vascular system, 59. 



Vas deferens, 99. 



Vein, 62. 



Veins, 528. 



Velarium, 252. 



Velarium of Scypbo- 

 medusae, 252. 



Velella, 246, 250. 



Velellid33, 244. 



Velia, 572. 



Venous, 73. 



Ventral plate, 545. 



Ventriculitidse, 221. . 



Veretillum, 231. 



Vermes, 302. 



Vesiculas seminales, 99. 



Vesiculata, 239, 241. 



Vespa, 597. 



Vexillum, 266. 



Vibrio, 206. 



Vine-lice, 570. 



Vinegar worm, 357. 



Visceral nerves, 82. 



Vitellarium of Turbel- 

 laria, 312. 



Vocal organs, 552. 



Volvox, 195. 



Vortex, 313. 



Vortex viridis, 310. 



Vorticella, 205. 



Waffenfliegen, 577. 

 Wallace, 147. 

 Warm-blooded, 74. 

 Wasps, 597. 

 Wasserlaufer, 572. 

 Water-bugs, 571. . 

 Water-fleas, 419. 

 Watermites, 495. 

 Water-scorpions, 572. 



Water-spiders, 504. 

 Water-vascular system. 



308, 311. 

 Water-vascular vessels 



of Platyhelminthes 75. 

 Wax glands, 532. 

 Weevils, 588. 

 Weizenfliege, 576. 

 White ants, 559. 

 White butterflies, 585. 

 White coral, 232. 

 Wickler, 582. 

 Wings, 528. 

 Wiiikelspinne, 504. 

 Winter eggs of Rotifera, 



403. 

 Winter eggs of Turbel- 



laria, 313. 

 Winter-sleep, 74. 

 Wolf-spider, 504. 

 Wood-bees, 598. 

 Wood-wasps, 594. 

 Worm, Paste, 357. 

 Worm, Vinegar, 357. 

 Wotton, 133. 



Xantho, 478. 

 Xenos, 566. 

 Xiphosura, 480. 

 Xylocopa, 698. 

 Xylophaga, 589. 

 Xylophagus, 577. 

 Xylotomse, 576. 



Yolk, 111. 

 Yolk-cord, 543. 

 Yolk, Effect of, on de- 

 velopment, 120. 

 Yponomeuta, 582. 



Zerene, 583. 

 Zoeea, 466. 

 Zoantharia, 231. 

 Zoanthus, 232. 

 Zoogloca, 200. 

 Zoological provinces, 1 60. 

 Zoophytes, 209. 

 Zoosperms, 209. 

 Zoospores, 194, 197. 

 Zoothammium, 205. 

 Ziinsler, 582. 

 Zygaena, 584. 



Printed by Hazell, Wataon, & Viney, Ld. London 



