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Rh Tutufa, 198 typica, Rupellaria, 420, pi. 306 uberinus, Polinices, 185 umbilicalis, Margaritas, 108 umbonata, Area, 342, pi. 27J uncinata, Cavolina, 298, fig. 64X uncinatifomiis, Cavolina, 298 undata, Amphissa, 224, fig. 50c undata, Astarte, 376, pi. 28r undata, Glycymeris, 348, 349, pi. 27g undata, Adicromelo, 276, pi. 26U undata, Thais, 213 undata, Velutina, 175 undatella, Chione, 408, pi. 31-i undatum, Buccinum, 225 undosa, Astraea, 124, pi. i8p undulata, Cyathodonta, 472, pi. 31s unifasciata, Lacuna, 131, fig- 36b uniplicata, Neosimnia, 182, pi. 76 universitatis, Glossodoris, 303 urceolaris, Herse, 299 Urosalpinx, 212 cinerea, 212, fig. 476 follyensis, 212 perrugata, 211, 212, fig. 47d tampaensis, 2 1 3 vaginata, Nuculana, 337 vallei, Cypraea, 180 valvulus, Solemya, 333 Vancouver ensis, Acteon, 275 vanhyningi, Arene, 122 vanhyningi, Cerithiopsis, 157 vanhyningi, Conus, 263 vanhyningi, Cumingia, 436 vanhyningi, Dinocardium, 401, pi. 32b Vanikoro oxychone, 167 Vanikoroidae, 167 variabile, Cerithium, 154, pi. 19-0 variabilis, Arene, 123, pi. 17s variabilis, Donax, 437, pi. 3or variabilis, Neosimnia, 183 Varicorbula, 456 disparilis, 457 operculata, 456 variegata, Eulithidium, 128 variegata. Lacuna, 131 variegata, Alitrella, 223 variegata, Nerita, 128 variegata, Tricolia, 128 variegata, Turritella, 141, pi. 21-i variegatum, Calliostoma, 116, fig. 33b varium, Bittium, 155, pi. i9r Vasum, 245 coestus, 245 muricatum, 245, pi. 23-I velata, Placiphorella, 316, fig. 66a velei, Cymatium, 195 veliei, Hyalina, 258 velum, Solemya, 333, pi. 27a Velutina, 131, 175 laevigata, 175, pi. 22n undata, 175 zonata, 175 Venericardia, 379

borealis, 379, 380, pi. 28t flabella, 380 novangliae, 378 perplana, 380, pi. 28-I redondoensis, 379 stearnsi, 379 tridentata, 379, 380 ventricosa, 379, pi. 29-I Veneridae, 404 ventricosus, Colus, pi. 23U, not in text ventricosa, Neptunea, 230, pi. 24s ventricosa, Venericardia, 379, pi. 29-I venulosa, Tellina, 425 Venus, see Mercenaria, 406 venustula, Arene, 122 Vermetidae, 143 Vermicular ia, 144 fargoi, 145, pi. 2 lb knorri, 145, pi. 21a spirata, 144, pi. 210; fig. 22-i verrilli, Strombus, 174 versicolor, Amphissa, 223, 225, fig. 50a versicolor, Cerithium, 154 versicolor, Nerita, 128, pi. 4b versicolor, Tellina, 423 Verticordia, 474 fisheriana, 474 omata, 474, fig. 97c, d Vesica, see Bulla, 277 vesicaria, Hydatina, 276, pi. i3q vesicula, Haminoea, 279 vestitus, Svmmetrogephyrus, 316, fig. 66c viabrunnea, Genota, 271, fig. 57g vibex, Nassarius, 237, pi. 2 3q villepini, Conus, 263, pi. i4f vincta, Lacuna, 130, 131, pi. 22p-, fig. 36c-e violaceus, Tremoctopus, 485 virescens, Haminoea, 279 virescens, Voluta, 250 virginea, Neritina, 129, pi. 4-i virginianum, Prunum, 257, fig. 56h virginica, Cerithiopsis, 157 virginica, Crassostrea, 373, 375, pi- 28a virginicum, Bittium, 155 virgo, Polystira, 268 virgula, Cleodora, 294 virgula, Creseis, 294, fig. 64P virgulatus. Chiton, 324 viridemaris, Smaragdia, 130 viridis. Chiton, 325 viridis, Smaragdia, 130, pi. 4h viridis, Solen, 444, pi. 3on vitillina, Erato, 176, pi. 20-0 vitrea, Creseis, 294 vitrea, Styliola, 294 Vitrinella, 138 beaui, 138 helicoidea, 138 multistriata, 138, pi. 17V Vitta, 129 volcano, Fissurella, 100, pi. i8c Volsella, 351 americana, 351, 352, pi. 35-I capax, 352 541 demissa, 351, pi. 38h demissa granosissima, 352 fornicata, 352, pi. 29-0 modiolus, 351, fig. 26) plicatula, 352 tulipa, 351 Voluta, 250 musica, 250, pi. i3g virescens, 250 Volutharpa ampullacea, 78 V^olutidae, 250 Volutopsius, 226 castaneus, 226, fig. 51c harpa, 226, pi. 24P Volvarina, 258 Volvtda, see Rhizorus, 280 Volvjdella, see Rhizorus, 281 voyi, Spisula, 447 vulgaris. Octopus, 486, fig. looa wallallensis, Haliotis, 93 vvashingtona, Xylophaga, 463 watsoni, Gaza, 118, fig. 32a iveyssei, Neritina, 130 weyssei, Smaragdia, 130 willcoxi, Aplysia, 285 willisi, Odostomia, 288, fig. 62a ivosnessenski, Mopalia, 315 wroblewskii, Opalia, 162, pi. 20J Xancidae, 244 Xancus, 244 angulatus, 244 scolyma, 245 Xenophora, 172 caribaeum, 173, pi. 230 conchyliophora, 173, pi. 5b longleyi, 173, pi. 23d radians, 173 trochiformis, 173 Xenophoridae, 172 Xylophaga, 463 dorsalis, 463 washingtona, 463 Yoldia, 340 limatula, 340, fig. 71b, (44) limatula gardneri, 340 myalis, 340, pi. 27d sapotilla, 340, pi. 27b thraciaeformis, 340, pi. 27e yoldiformis, Macoma, 433 Zaphon, 240 zebra. Area, 342, pi. 27n zebra, Cypraea, 180, pi. 6d Zeidora, 94 ziczac, Littorina, 132, pi. 196 ziczac, Pecten, 362, pi. 33d Zirfaea, 462 crispata, 462, fig. 94c, 461 gabbi, ^6z pilsbryi, 462 zonamestum, Calliostoma, 112, pi. in Zonaria, 181 zonata, Velutina, 175