FNDEX. 



389 



L'nguliua, 279 

 Unio, 270 

 Uuioiiidae, 2G9 

 Urechinus, 174 

 Urnatella, 2-i9 

 Unmla, 47 

 Urosalpinx, 331 

 Uti'icularia, lUO 

 Uvella, 37 



Vaginicola, 45 

 VaginicoliiiiE, 43, 45 

 Valvata, 345 

 ValvatidiE, 345 

 Varices, 330 

 Velella, 107 

 Veliger, 152 

 Velum, 251 

 Veuerula;, 376 

 Ventriculites, 71 

 Venus, 276 

 Venus' rtower-basket, 08 



„ girdle, lOS 

 Vermes, 185 

 Verraetida;, 343 

 Vermetus, 344 

 Veronicella, 310 

 Vertigo, 316 

 Vescicularia, 241 

 Vescicularidae, 241 

 Vesciculata, 12 

 Vibracula, 238 

 Vinegar eels, 207 



Vitelline membrane, xliv 

 Vitrina, 312 

 Vitrininas, 312 

 Vohua, 327 



Volute, peacock-tail. 327 

 Volutes, o27 

 VolutidiB. 327 

 Volutomitra, 330 

 Vortex, 190 

 Vorticella, 43 

 Vorticellida;, 43 

 Vorticellinaj, 43 



Waldliamia. 243, 247 

 Wauiiiuui, 277 

 Waterinn-pot, 283 

 AVntur-vascular system, xxiii 

 WatL'i-vasciilar canal, xx 

 Weaver's slnittle slicll, 349 

 Wentle-trap, 326 



,, precious, 320 



Wliale's tongue, 231 

 Wheat-worm, 208 

 Wlieel-animalcules, 202 

 Wlielk, 333 

 Wliorls, 287 



Wing-footed moUusca, 356 

 Wing-shells, 349 

 Wool sponge, 64 

 Worms. 185 



AVorni, barbed-headed, 213 

 „ earth, 220 



Worm, hair, 212 

 „ iointed, 218 

 ., lug, 227 

 „ pin, 212 



round, 212 

 „ ship, 284 

 „ tube, 225 



Xylophaga, 280 

 Xylotrya', 285 



Yellow sponge, 64 

 Yoldia, 2(i9 



Ziphacantha, U 

 Zimmocca sponge, 64 

 Zirpluta, 38H 

 Zoantharia, 115, 116 

 Zonites, 312 

 ZonitiuiE, 312 

 Zoocytium, 40 

 Zoodendria, 33 

 Zooid, 78 

 Zoology, ii 



,, history of, Ixiv 

 Zooii, 57 

 Zoopliytes, 72 

 Zoothamnium, 45 

 Zoroaster, 160 

 Zygobranchia, 319 

 Zygodactyla, 87 

 Zygosis, 30 



Oardad 



