INDEX. 



615 



Tria'iiupliorus. 338. 

 Trichina, 347, 348, 353, 



354. 355. 

 Trichocephalus, 348, 353. 



Trichodectes. 336, 568. 

 Trichodes, 589, 5'.)!). 

 Trichodina, 205. 

 Trichomonas, l'.)4. 

 Trichoptera, 564. 

 Trichosomum. 353. 

 Trichotrachelidae, 353. 

 Trigonia, 599. 

 Trilobita, 483. 

 Triphsena, 583. 

 Tristomum coccincura, 



323 



Trivium, 269. 

 Trochal disc of Rotifers, 



401. 



Trochanter. 526. 

 Troctes. 559. 

 Trogus, 595. 

 Trombidium, 49."). 

 Trypota, 576. 

 Tube-spinner-;. 501 

 Tubicinella, 446. 

 Tubicolre, 380. 

 Tubicolaria, 401, 401. 

 Tuliifex. 385. 

 Tubipora, 231. 

 Tubitelm, no 4. 

 Tubularia. 239. 241. 

 TubulavijB. 241. 

 Turbellaria, 309. 

 Turbinolia, 232. 

 Tylenchus. 357. 

 Type, :2. 



Type of Dcsor. 341. 

 Typhis, 45U. 



Typhlosole of Lumbri- 



cus, 383. 



Tyroglyphus, 492. 

 Umbellula, 231. 

 Upper lip of Cni<t;irc;i, 



412. 



Urori-ridio. 594. 

 Uropoda of Cre\ r ettina. 



454. 

 Uterine bell of Aoantho- 



cephala, 3l',l. 



Uterus. 99. 



Vajriiia, 99. 

 Vampyrolla, 194. 

 Vanessa. 553. 5S5. 

 Variability, 145. 

 Varieties. 141. 

 Variety, Relation of to 



species, 149. 

 Vascular pore of Nema- 



t.xla, 34C.. 



Vascular system, 59. 

 Vas defercns, 99. 

 Vein, 62. 

 Veins, 528. 

 Velarium. 252. 

 Velarium of Scypho- 



m&dusae, 252. 

 Velella, 246, 250. 

 Velellidaj. 244. 

 Velia. 572. 

 Venous, 73. 

 Ventral plate, 545. 

 Ventriculitidte, 221. 

 Verctillum. 231. 

 Vermes, 3U2. 

 Vesiculfe 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 ortrnns. 552. 

 Volvox, 195. 

 Vortex, 313. 

 Vortex viridis. 310. 

 Vorticella. 205. 



.. 577. 

 Wallace, 147. 

 Warm-bit inded, 74. 

 Wasps, 597. 

 Wasserliiuft-r. 572. 

 Watei'-bugs, 571. 

 Water-fleas, 119. 

 \\'atermitcs. 195. 

 Water-so irpions. 572. 



Water-spiders, 504. 



Water- vascular system. 

 308. 311. 



Water-vascular ves-cN 

 of Platyhelmintb.es 75. 



Wax glands, 532. 



Weevils, 588. 



Weizenfliege, 57(i. 



White ants, 559. 



White butterflies, 5S5. 



White coral, 232. 



Wicklcr, 582. 



Wings, 528. 



Winkelspinne, 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, 5f!ii. 

 Xiphosura, 480. 

 Xylocopa, 598. 

 Xylophaga, 5sp. 

 Xylophagus, 577. 

 Xylotomae, 576. 



Yolk, 111. 

 Yolk-cord, 543. 

 Yolk, Effect of, on de- 

 velopment, 120. 

 Yponomenta, <5S2. 



Zerene, 583. 

 Zosea, 466. 

 Xoatitharia. 231. 

 /nautilus, 232. 

 Zoogloca, 200. 

 Zoological provinces,! (lo. 

 Zoophytes, 2o9. 

 Zoosperms, 209. 

 Zoospores, 191, 197. 

 Zoothammium. 205. 

 Ziinsh'r. 5SL'. 

 Zyga;na. 5s I. 



Printed by Hazell, Watson, and Vinoy, Limited, London and Aylcslmrv. 



