752 



INDEX 



Vole, 701, 704 

 Volvox, 90 



Vomer, 531, 549, 559, 574, 641 

 Vomerine plates, 471 

 Vorticella, 35, 36, 37, 38, 39, 41, 42, 

 47; reproduction of, 38 



Waldheimia, 371, 372, 375 



Wallaby, 660 



Walrus, 678 



Wapiti, 698 



Warty eft, 625 



Wasp, 246, 256 



Water-boatman, 257 



Water-frog, 559 



Water-newt, 543 



Water-rat, 704 



Water-reptiles, 604 



Water- scorpion, 257 



Water-shrew, 671, 672 



Water-vascular system, 96, 332, 333 



Water-vole, 704 



Weasel, 676 



Weberian chain, 491 



Weberian ossicles, 492 



Whalebone whales, 682 



Whales, 664, 679 



Whelk, 284, 286, 289 



Whiskered bat, 708 



White-ant, 252 



White-fish, 489, 490 



White-shark, 467 



White-whale, 681 



Wniting, 495 



Wild boar, 691 



Wild cat, 674 



Wild duck, 612 



Windpipe, 623 



Wings of Insects, 246 ; of Birds, 608, 



609, 612 



Winter-eggs, 98, 125 

 Wire-worm, 175, 231 

 Wolf, 675 

 Womb, 656 

 Wombat, 663 

 Wood-ant, 256 

 Woodchuck, 701 

 Wood-louse, 223, 224 

 Wood-mouse, 704 

 Woodpecker, 633 

 Wood-wasp, 256 

 Wrass, 493 



Xantharpyia, 707, 708, 725 

 Xiphiplastra, 594 

 Xiphisternum, 550, 650 

 Xiphoid process, 609 

 Xiphosura, 272, 283 



Yellow-cells, in Lumbricus, 142, 148 

 Yolk, 8, 627; -gland, 97 



Zebra, 690 



Zoaea, 215 



Zoantharia, 73, 82 



Zooecium, 377 



Zoology, definition of, 1 ; object of, 3 ; 



subdivisions of, 10 

 Zygaena, 467 

 Zygantra, 587 

 Zygapophyses, 523 

 Zygosphenes, 587 

 Zygote, 26 



CAMBRIDGE; PRINTED BY J. B. PEACE, M.A., AT THE UNIVERSITY PRESS, 



