INDEX 



737 



Water bears. 457. 

 Water fleas, 333. 

 Water mites, 447. 

 Watervascular system, G14. 

 Wentletraps, 535. 

 westcrmani 



(Paragonimus), 184. 

 wheatlandi (Procerodes), 



167. 

 Wheel animalcules, 230. 

 wheeleri (Bdelloura), 16S. 

 wheeleri (Koenenia), 400. 

 Whelks, 558. 

 Whip scorpions, 407, 

 whitei (Diplocentrus), 406. 

 whitei (Tarantula), 407. 

 wilsoni (Plagiostomum), 



164. 



Winter egg, in phyllopody 

 329; in rotifers, 231. 



Wolf spid.Ts, 432. 



wrzesniowskii (Lionotus) , 

 53. 



XlPHOSUKA, 400. 

 Xylotrya, 599. 

 Xysticus, 428. 



Yellow back, 580. 

 Yellow sponge, 85. 

 Yoldia. 568. 



ypsilophora (Unionicola), 

 451. 



Zanclea, 96. 

 Zilla, 426. 

 Zirphaea, 598. 



Zoantharia, 138. 

 Z(»anth<«ae, 141. 

 Zoanthus, 141. 

 zonaria (Salpa),6G2. 

 zunata (liiniapontia), 506. 

 Zonitidae, 524. 

 Zonitoides, 525. 

 Zooea, 394. 

 Zooecium, 245. 

 Zoophyta, 3, 4, 70, 89. 

 Zoothamniuni, 66. 

 Zooxanthellae, 24. 

 zostericola (Sarsiella), 357. 

 zostericola (Virbius), 387. 

 Zygeupolia, 208. 

 Zygobranchiata, 530. 

 Zygodactyla, 116. 

 Zygonemertes, 211, 



OfclUi^^ 



