GENEKAL INDEX. 
607 
Wollaston, Mr. T. V., on the beetles of St. He- 
lena, i. 270 
Wombats, ii. 253 
Woodpeckers, ii. 302 
Wood- warblers, ii. 278 
Woolly monkeys, ii. 174 
Wrens, ii. 263 
Wrynecks, ii. 304 
X. 
Xanthocephalus, ii. 282 
Xantholcema, ii. 306 
Xanthomelus, ii. 275 
Xanthopygia, ii. 270 
Xanthosomus, ii. 282 
Xanthotis, ii. 275 
Xema, ii. 364 
Xenelaphis, ii. 376 
Xenica, ii. 471 
Xenicus, ii. 265 
Xenochrophys, ii. 375 
Xenocypris, ii. 452 
Xenodermus, ii. 376 
Xenodon, ii. 375 
XENOPELTID7E, ii. 373 
Xenopeltis, ii. 373 
Xenophrys, ii. 421 
Xenopipo, ii. 102 
Xenops, ii. 103 
XenorMna, ii. 415 
XENORHINIDjE, ii. 415 
Xenospingus, ii. 284 
Xmurelaps, ii 383 
Xenurus, in Brazilian caves, i. 145 
ii. 246 
Xiphias, ii. 430 _ 
XipMdiopicus, ii. 303 
XIPHIID.E, ii, 430 
Xiphius, ii. 208 
Xiphocolaptes , ii. 103 
Xiphodontidce, European Miocene, i. 119 
Xipholena, ii, 102 
Xiphorhampus, ii. 445 
Xiphorhynchus, 103 
Xiphostoma, ii. 445 
Xystrocem ii. 501 
Y. 
Ypfhima, ii. 471 
Yuhina, ii. 266 
YUNGID^E, ii. 304 
Yungipicus, ii. 303 
Yunx, ii. 304 
Z, 
Zabrus , Ti. 489 
Zalophus, ii. 203 
Zamenis, ii. 375 
Zanclostomus, ii. 309 
Zaocys, ii. 375 
Zebras, ii. 211 
Zegris, ii. 478 
Zemeros, ii. 475 
Zena-ida, ii. 833 
Zenaidura, ii, 332 
Zephyrus, ii. 477 
Zeugbdon, ii. 210 
Zeuglodontidcs, N. American Tertiary, i. 140 
ii. 210 
Zeus, ii. 429 
Zeux'idia, ii. 472 
Zoarces, ii. 431 
Zonites, ii, 516 
Zonites prisons, Palaeozoic, i. 169 
Zonotrichia, ii. 284 
ZONURIDyE, ii. 391 
Zonums, ii. 392 
Zoological characteristics of Palsearctic region, 
i. 181 
Ethiopian region, i. 252 
Oriental region, i. 315 
Australian region, i. 390 
of Neotropical region, ii. 5 
of Nearctic region, ii. 115 
Zoological regions, discussion on, i. 50 
their origin and relations, ii. 155-161 
Zoothera, ii. 256 
Zootoca, ii. 391 
Zosterops, ii. 277 
Zygcena, ii. 481 
ZYG^ENIDjE, ii. 481 
Zygnopsis, ii. 398 
THE END. 
LONDON : Ii. CLAY, SONS, AND TAYLOR, PRINTERS. 
