722- 



INDEX. 



Vipera, 499 



Vitellogene, 147 



Viviparous fishes, 444 

 reptiles, 495 

 sea-urchins, 121, 123 

 starfish, 110, 114 



Vorticella, 39 



Vulture, 548 



TTaihus, 614 

 Wapiti, 608 

 Wasp, 364 

 Water-bear, 340 

 Water-flea, 2T9 

 Watering-pot shell, 230 

 Waxwing, 555 

 Whale, 591 



fishery, 594 



sperm, 593 



bone, 592 



white, 595 

 Whale's-tongue TTorm, 199 

 Whelk, 248 



White ant, 847 

 Worms, 188 



flat, 141 



fluke, 146 



nemertean, 196 



parasitic, 145, 146 



phosphorescent, 217 



round, 163 



strobilation in, 144, 145 



tape, 153 



thread, 163 



trematode, 146 

 Worm, whale's-tongue, 199 

 Wren, 555 



XrPHOSTiBA, 304 



Zeuglodon, 595 

 Zoantharia, 79, 91 

 Zoanthus, 79 

 Zoea, 293 



Zoogeography, 16, 658 

 ZoSids, 202, 210 



