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534 Paleoconcha, 332, 333 pallasi, Symmetrogephyrus, 317 palliata, Littorina, 133 pallida, Lunatia, 190, fig. 43 c pallidus, Eubranchus, 310, pi. i5h palmeri, Cingula, 135 palmulatus, Ischnochiton, 323 Pandora, 469 arenosa, 470 bilirata, 471 bushiana, fig. 96a, not in text carolmensis, 470 filosa, 470 gouldiana, 470, fig. 96c granulata, 471 trilineata, 469, fig. 96b Panomya, 453 ampla, 453 arctica, 454 Panope, 454 bitruncata, 454 generosa, 454 globosa, 454 solida, 454 taeniata, 454 paphia, Chione, 409, pi. 39a papillosa, Aeolidia, 308, pi. i5g papulosa, Pleuroploca, 242 papillosus, Ischnochiton, 320 papyraceuni, Periploma, 473 papyraceus, Pecten, 362 papyratia, Ficus, 200 papyratia, Pyrula, 200 papyratium, Periploma, 472, pi. 28W papyria, Amygdalum, 353, pi. 28-i Papyridea, 398 hiatus, 398 semisulcata, 398 soleniformis, 398, pi. 39n Parapholas calif ornica, 464 (and 463) Parastarte triquetra, 419, fig. 85 parcipictus, Margarites, 108 Paroctopus, 488 parva, Bailya, 231 parvicallum, Teinostoma, 140 Parvilucina, 386 patina, Acmaea, 104 Patinopecten, 361 patula, Siliqua, 442, pi. 29y paucilirata, Acanthina, 212 pealei, Loligo, 480, fig. 99a peali, Conus, 263 Pecten, 361 caurinus, 361, pi. 29b diegensis, 169, 361, pi. 336 jacobaeus, 11 laurenti, 362, pi. 33f papyraceus, 362 raveneli, 362, pi. 33g tereinus, 363 tryoni, 367 ziczac, 362, pi. 33d pectinata, Cardiomya, 477 pectinata, Glycymeris, 348, pi. 27-i pectinata, Siphonaria, 310, fig. 65b pectinatus, Phacoides, 388, 389, pi. 38g Pectinidae, 361 peculiaris, Strombus, 174 Pedalion, 358 Pedicularia, 181 calif ornica, 182, pi. 7b, c decussata, 181, pi. 7d ovulijormis, 182, pi. 7c Pediculariella, 181 pediculus, Trivia, 177, pi. zibb pedroana, Cerithiopsis, 158 pedroana, Cyathodonta, 472 pedroana, Mysella, 396 pedroana, Odostomia, 290, fig. 63m pedroana, Terebra, 267 pedroana, Triphora, 159 pedroense. Caecum, 148 pelagica, Scyllaea, 308 Pelecypoda, 332 pellucida, Lima, 370 peloronta, Nerita, 128, pi. 4a pelta, Acmaea, 102, pi. i8n penderi, Nuculana, 339 penicillata, Anachis, 221 penita, Penitella, 463 Penitella, 463 penita, 463 sagitta, 463 pennacea, Glycymeris, 348 pensylvanica, Lucina, 385, pi. 38h Peracle, 293 bispinosa, 293, fig. 64f clathrata, 293 physoides, 293 reticulata, 293, fig. 64g Peraclidae, 293 Peraclis, see Peracle, 293 peracuta, Architectoniea, 143, pi. 4n, fig. peramabile, Microcardium, 399 peramabilis, Solariella, iii, fig. 31b perdix, Tonna, 199 peregrinus, Boreostrophon, 208 Periploma, 472 discus, 473, figs. 97a, 28-I fragile, 473 inaequivalvis, 473 inequale, 473, pi. 28X leanum, 474, pi. 28V papyracemn, 473 papyratium, 472, pi. 28W planiusculum, 473, pi. 31X periscelida, Gemmula, 267, fig. 57c peristephes, Phalium, 193 permollis, Ostrea, 374, pi. 28b Perna, 358 pernobilis, Sthenorytis, 161, fig. 40c pernoides. Area, 343 pernula, Nuculana, 336 peroni, Atlanta, 184, fig. 41 Peronidia, 425 Perotrochus, 91 adansonianus, 92, pi. 3d quoyanus, 92 perpinguis, Nassarius, 239, fig. 536 perplana, Venericardia, 380, pi. 2 8-1 perrugata, Urosalpinx, 211, 212, fig. 47d perryae, Cerodrillia, 270 Persicula, 257 catenata, 257, fig. 56) jewetti, 258 lavelleana, 258 minuta, 257, 260, fig. 56m politula, 258 regularis, 258 subtrigona, 258 persona, Acmaea, 103, pi. i8q perspectivum, Sinum, 190, pi. 22s perteniiis, Retusa, 280 peruviana, Anomia, 372, pi. 29c perversa, Triphora, 159 perversum, Busycon, 236, pi. 23k perviridis, Aplysia, 285 pexata, Anadara, 345 Petaloconchus, 143 erectus, 143 irregularis, 143, pi. 2 id nigricans, 143, pi. 2ie Petrasma, 333 petri, Murex, 205 Petricola, 419 lapicida, 419 pholadiformis, 420, pi. 32Z, fig. 94b Petricolaria, 420 Phacoides, 388 acutilineatus, 389 annulatus, 389, fig. 28f centriftiga, 389 filosus, 388, 389, pi. 38), fig. 78a ja?naicensis, 388 nassula. 388 nuttalli, 388, pi. 3ig pectinatus, 388, 389, pi. 38g Phalium, 192 abbreviata, 193 centriquadrata, 193 cicatricosum, 193, pi. gi glaucum, 192 granulatum, 192, pi. 9e inflatimi, 193 peristephes, 193 phanea, Odostomia, 290, fig. 63) Phasianellidae, 126 Philine, 283 lima, 283, fig. 59f lineolata, 283 quadrata, 283, fig. 590 sagra, 283 Philinidae, 282 philippiana, Anodontia, 389, pi. 380 philippinarum. Tapes, 410 philtata, Marginella, 254 Pholadidae, 460 Pholadidea ovoidea, 463 pholadiformis, Petricola, 420, pi. 32Z pholadis, Hiatella, 453 Pholas campechiensis, 462, pi. 32t phrixodes, Emarginula, 94, pi. 17-0 phrygium, Aequipecten, 367