714 



INDEX 



Warning characters, 283, 637* 



Water-lizards, 355 



Water-newt, 285 



Water opossum, 479 



Water-voles, 491 



Weasels, 176, 470, 554 



Weaver, 221 



Weber, Max, 663 



Weberian apparatus. 231* 



Webs, 258, 409 



Weismann, A., 668 



Weka, 431 



Wells, W. C., 662 



Whalebone See Baleen 



Whalebone Whales, 446, 486, 501, 515, 



517, 541, 550, 586 

 Whales See Cetacea, 466 

 Wheel-organ of Amphioxus, 44* 

 White, Gilbert, 654 

 White matter, 95, 96* 

 Whiting, 214 

 Wiegmann, 660 

 Willemoes-Suhm, 662 

 Wfflughby, F., 651 

 Wing of Birds, 367, 368 

 Wing-coverts See Pterylosis, 373 

 Wolff, C. F., 653 

 Wolffian body, 115 

 Wolffian duct, 115, 116* 

 Wombats, 465, 481, 482, 506, 509 

 Woodpeckers, 404, 409, 416, 421 

 Wotton, Edward, 647 

 Wrasse, 215, 218, 227 



X 



^ENOPHANES, 658 



Xenopus, 285, 289, 294, 295 

 Xenosauridce, 358 

 Xiphiplastron, 335 

 Xiphisternum, 263, 264, 265 



Y 



JLAK, 617 



Yolk cells, 280* 

 Yolk-plug, 247, 249, 280, 281 

 Yolk-sac, 180, 209, 210, 249, 577 

 Yolk-sac placenta, 577 



z, 



JEBRA, 468, 488, 489, 580 

 Zeuglodon, 586, 620 

 Zeuglodonta See Archseoceti 

 Zoarces, 234 

 Zona radiata, 569* 

 Zonary placenta, 576* 

 Zonuridce, 358 

 Zoo -geographical regions, 608, 614 



Relations of, 614 

 Zygcena, 165 

 Zygantrum, 333* 

 Zygapophysis, 195* 

 Zygomatic arch, 496* 

 Zygomatic process, 439 

 Zygosphene, 333* 



