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522 cepio, Pododesmus, 572 Cerastoderma, pinnulatum, 404, pi. 30c Ceratostoma foliatn7n, 219 Ceratozona rugosa, 317, 326, fig. 67a cerealis, Acteocina, 282 cerina, Gouldia, 415 cerinella, Cingula, 135 Cerithidea, 151 costata, 152, pi. 19U hegewischi calif ornica, 152 pliculosa, 152, pi. i9t scalariformis, 152, pi. 19X turrita, 152 Cerithideopsis, 152 Cerithiopsis, 157 carpenter!, 157 emersoni, 157 greeni, 157, pi. 19V grippi, 158 pedroana, 158 subulata, 157, pi. 19W vanhyningi, 157 virginica, 157 Cerithium, 153, 270 algicola, 154, pi. i9p eburneum, 154, pi. i9q floridanum, 153, pi. 1911 literatum, 154, pi. 19-I muscarum, 154, pi. 19m variabile, 154, pi. 19-0 versicolor, 154 Cerodrillia, 270 perry ae, 270 thea, 270, fig. 57f cerrosensis, Forreria, 200, fig. 44a, b cervus, Cypraea, 1 80, pi. 6f cestmn, Dentalium, 329 chacei, Opalia, 162 Chaetopleura apiculata, 319, figs. 67d, 68 Chama, 391, 392 congregata, 392, pi. 37d fimta, 393 macerophylla, 392, fig. 79b; pi. 37b sinuosa, 392, fig. 79a Chamidae, 391 Charonia, 197 atlantica, 197 tritonis, 197 tritonis nobilis, 197, pi. ^f Cheila equestris, 165, pi. 2ip chemnitzi, Anadara, 346 Chemnitzia, 290 chemnitziana, Isognomon, 358 chesneli, Rissoina, 137 Chicoreus, 203 Chione, 407 calif orniensis, 407, pi. 31) cancellata, 173, 407, pi. 39h fluctifraga, 408, pi. 31k gnidia, pi. 3 id, not in text grus, 408, pi. 32i intapurpurea, 407, pi. 39g interptirpurea, 407 latilirata, 409, pi. 39c mazycki, 407 Index paphia, 409, pi. 39a pygmaea, 408 succincta, 408 undatella, 408, pi. 31! Chionidae, 404 Chiton, 324 albolineatus, 325 laevigatas, 324 marmoratus, 324, 325 squamosus, 324, 325 stokesi, 326 tuberculatus, 324, pi. id; fig. 67f virgulatus, 324 viridis, 325 Chitonidae, 324 Chlamys, 361, 363, 368 benedicti, 363, 364 hastatus, 364, pi. 34J hericius, 364, pi. 34k hindsi, 365, pi. 34-I imbricatus, 364, pi. 34f islandicus, 365, pi. 24-I mildredae, 363, pi. 34c omatus, 363, pi. 34b sentis, 363, 364, pi. 34a Chlorostoma, 120 chlorostomum, Cymatium, 195, 196, pi. chocolata, Turbonilla, 290, fig. 636 Chrysallida, 288, 290 Chrysodomus lirata, 230 chrysostovia, Lucina, 389 cicatricosum, Phalium, 198, pi. 9f Cidarina, 109 cidaris, Lischkeia, 109, fig. 3ih ciliita, Mopalia, 315, 316 ciliatum, Clinocardium, 403, pi. 32e cinerea, Cypraea, 180, pi. 6c cinerea, Terebra, 266, pi. 26g cinerea, Urosalpinx, 212, fig. 47e cinereum, Gastropteron, 285 cmerens, Margarites, 107 Cingula, 135 aculeus, 136 asser, 135 cerinella, 135 kelseyi, 135 kyskensis, 135 montereyensis, 135 palmeri, 135 cingidifera, Leucozonia, 241 Circinae, 415 Circomphalus, 404 Circulus, 138 circumtexta, Ocenebra, 218, fig. 49b Cirsotrema, 161 arcella, 162 dalli, 161, fig. 40a; pi. 22c cistula, Lasaea, 353, 395 citrica, Ocenebra, 218 citrinus, Brachidontes, 352, 353, pi. 35! citrinus, Conus, 262 citrinus, Murex, 202 Cittarijmi, 1 1 7 clarki, Conus, 264, pi. 14! clathrata, Distorsio, 196, pi. 2533 clathrata, Ocenebra, 217 clathrata, Peracle, 293 clathratus, Boreotrophon, 206 clathratus, Ischnochiton, 323 clathrum, Epitonium, 165 clausa, Natica, 191, fig. 43b clavium, Teinostoma, 140 cleo, Rissoina, 137 Cleodora, 294, 295 Clinocardium, 403 ciliatum, 403, pi. 326 cor bis, 403 fucanum, 403 nuttalli, 403, pi. 31b Clio, 295 balantiimi, 295 cuspidata, 295, fig. 641 exacuta, 295 falcata, 295 lanceolata, 295 polita, 295, fig. 64-I pyramidata, 295, fig. 64k recurva, 295, fig. 64) Jlione, 299 Clionopsis, 299 Cliopsis, 299 Clypidella, loi coarctata, Cumingia, 436 coarctatum, Busycon, 237, pi. la Cochlodesma, 474 cockerelli, Laila, 304, pi. 16) cocolitoris, Teinostoma, 139 Codakia, 390 calif ornica, 390, pi. 31c costata, 390, filiata, 391 orbicularis, 390, pi. 38d orbiculata, 391, pi. 30-I coestus, Vasum, 245 CoUisella, 102 Colubraria, 232 lanceolata, 232, pi. 25X swifti, 233 testacea, 233 Colubrellina, 198 Columbella, 220 mercatoria, 220, pi. 25bb rusticoides, 220 columbella, Erato, 176 Columbellidae, 220 Columbiana, Amphissa, 224, fig. 50b Columbiana, Crenella, 351, fig. 26g, h columnella, Herse, 299, fig. 64m Colus, 227 caelatus, 229 pubescens, 229, pi. 231 pygmaeus, 229, pi. 23m spitzbergensis, 229, fig. 5ih stimpsoni, 227, pi. 23X ventricosus, pi. 23U, not in text colymbus, Pteria, 359, pi. 35d commune, Epitonium, 164 communis, Ficus, 200, pi. 9! compressa, Pseudopythina, 395