INDEX 



737 



Water bears, 457. 

 Water fleas, 333. 

 Water mites, 447. 

 Watervascular system, 614. 

 Wentletraps, 535. 

 westermani 



(Paragonimus), 184. 

 wheatlandi (Procerodes), 



167. 



Wheel animalcules, 230. 

 wheeleri (Bdelloura), 168. 

 wheeleri (Koenenia), 406. 

 Whelks, 558. 

 Whip scorpions, 407. 

 white! (Diplocentrus),406. 

 white! (Tarantula), 407. 

 wilsoni (Plagiostomum), 



164. 



Winter egg, in phyllopods, 

 329 ; in rotifers, 231. 



Wolf spiders, 432. 



wrzesniowskii (Lionotus), 

 53. 



XlPHOSUEA, 400. 



Xylotrya, 599. 

 Xysticus, 428. 



YELLOW BACK, 580. 

 Yellow sponge, 85. 

 Yoldia, 568. 



ypsilophora (Unionicola), 

 451. 



ZANCLEA, 96. 

 Zilla, 426. 

 Zirphrca, 598. 



Zoantharia, 138. 

 Zoantheae, 141. 

 Zoanthus, 141. 

 zonaria (Salpa), 662. 

 zonata (Limapontia), 506. 

 Zonitidae, 524. 

 Zonitoides, 525. 

 Zooaa, 394. 

 Zooecium, 245. 

 Zoophyta, 3, 4, 70, 89. 

 Zoothamnium, 66. 

 Zooxanthellae, 24. 

 zostericola (Sarsiella), 357. 

 zostericola (Virbius), 387. 

 Eygeupolia, 208. 

 Zygobranchiata, 530. 

 Zygodactyla, 116. 

 Zygonemertes, 211. 



