INDEX. 



389 



Ungulina, 279 

 Unio, 2T0 

 UniouidiE, 269 

 Ureohiims, 174 

 Urnatella, 239 

 Urimla, 47 

 Urosalpinx, 331 

 Utrioularia, IflO 

 Uvella, 37 



Vaginioola, 45 

 VaginicolinaB, 43, 45 

 Valvata, 345 

 ValvatidsB, 345 

 Varices, 330 

 Velella, J07 

 Veliger, 152 

 Velum, 251 

 Venendse, 376 

 Ventriculites, 71 

 Venus, 276 

 Venus' flower-basket, 08 



,, girdle, 108 

 Vermes, 185 

 Verraetidae, 343 

 Vermetus, 344 

 Veronicella, 310 

 Vertigo, 316 

 Vesoioularia, 241 

 Vescicularidse, 241 

 Vesoiculata, 12 

 Vibracula, 238 

 Vinegar eels, 207 



Vitelline membrane, xllv 

 Vitrina, 312 

 Vitrininse, 312 

 Voluta, 327 



Volute, peaoock-taii. 327 

 Volutes, 327 

 Volutidse, 327 

 Volutomitra, 330 

 Vortex, 190 

 Voi'ticella, 43 

 VortioellidEB, 43 

 Vortioellins), 43 



"Waldhamia, 245, 247 

 Wampum, 277 

 Watering-pot, 283 

 Water-vascular system, xxiii 

 Water- vascular canal , xx 

 Weaver's shuttle shell, 349 

 Weutle-trap, 326 



,, precious, 326 



Whale's tongue, 231 

 Wheat-worm, 208 

 Wheel-animalcules, 202 

 Whelk, 333 

 Whorls, 287 



Wing-footed mollusca, 356 

 Wing-shells, 349 

 Wool sponge, 64 

 Worms, 185 



Worm, barbed-headed, 213 

 „ earth, 220 



Worm, hair, 212 



„ jointed, 218 



., lug. 227 



„ pin, 212 



,, round, 212 



„ ship, 284 



„ tube, 225 



Xylophaga, 286 

 Xylotrya, 285 



Yellow sponge, 64 

 Yoldia, 269 



Ziphacantlia, 11 

 Zimmocca sponge, 64 

 Zirphsea, 386 

 Zoantharia, 115, 116 

 Zonites, 312 

 Zouitin£e, 312 

 Zoocytium, 40 

 Zoodendria, 33 

 Zooid, 78 

 Zoology, ii 



,, history of, Ixiv 

 Zoon, 57 

 Zoophytes, 72 

 Zoothamnium, 45 

 Zoroaster, 160 

 Zygobranchia, 319 

 Zygodactyla, 87 

 Zygosis, 30 



