1890.] 



NATURAL SCIENCES OF PHILADELPHIA. 



505 



Tropidonotus 414 



Tryblionella 140 



Tuba 400 



Turhinella 145 



Turbinolia 4ol 



Turbo 145 



Tuiris 894 



Turriiella 145, 14«, 147, 400, 450 



Tylostoma 450, 458, 462, 4()9 



Typhula 219 



Tyrannus 207, 217 



Ulmus 238. 245 



Ulociinus 385 



Urosalpinx 46 



Ursus 411 



Uvigerina 143 



Vaginulus 296,297 



Valsa 222,223 



Valsaria 236 



Velella 408 



Venericardia 402 



Venturia 233 



Venus 144 



Vertigo 31-35 



Vespe riigo 30 



Vireo 210 



Vitex 272 



Viiis 225,228 



Volutililhes 396 



Volvula 144, 146, 401 



Winteria 240 



Xanthoura 208 



Xenophora 400 



Xiphigorgia 308,817 



Xyriclitliys 48 



Yoldia 144,403 



Zea 229 



Zonites 297 



