Pagodula, Genus – synonym of Trophon, Genus
Palio, Genus – synonym of Polycera, Genus
Palliorum, Genus – synonym of Palliolum, Genus
Pallium, Genus – synonym of Pecten, Genus
Paludinellidae, Familia – synonym of Assimineidae, Familia
Pandora, Genus – synonym of Pecten, Genus
Pandorella, Genus – synonym of Ebala, Genus
Pandorina, Genus – synonym of Lyonsia, Genus
Parachiton, Genus – synonym of Leptochiton, Genus
Parastilifer, Genus – synonym of Pelseneeria, Genus
Paratapes, Genus – synonym of Paphia, Genus
Parathyasira, Genus – synonym of Thyasira, Genus
Parcanassa, Genus – synonym of Nassarius, Genus
Parembola, Genus – synonym of Tapes, Genus
Parthenia, Genus – synonym of Chrysallida, Genus
Parthenina, Genus – synonym of Chrysallida, Genus
Partulida, Genus – synonym of Chrysallida, Genus
Parvacmaea, Genus – synonym of Tectura, Genus
Parvivenus, Genus – synonym of Timoclea, Genus
Pasiphae, Genus – synonym of Timoclea, Genus
Patellaria, Genus – synonym of Patella, Genus
Patellastra, Genus – synonym of Patella, Genus
Patellona, Genus – synonym of Patella, Genus
Patellopsis, Genus – synonym of Patella, Genus
Patellus, Genus – synonym of Patella, Genus
Patina, Genus – synonym of Ansates, Genus
Pectenus, Genus – synonym of Pecten, Genus
Pectinium, Genus – synonym of Pecten, Genus
Pectunculus, Genus – synonym of Dosinia, Genus
Pectunculus, Genus – synonym of Glycymeris, Genus
Pelacanus, Genus – synonym of Aporrhais, Genus
Pelagella, Genus – synonym of Goniodoris, Genus
Pelecypoda, Classis – synonym of Bivalvia, Classis
Pellibranchiata, Ordo – synonym of Sacoglossa, Ordo
Pelopia, Genus – synonym of Thracia, Genus
Peloriderma, Genus – synonym of Ostrea, Genus
Peloridoderma, Genus – synonym of Ostrea, Genus
Peloris, Genus – synonym of Ostrea, Genus
Peplum, Genus – synonym of Pseudamussium, Genus
Perapecten, Genus – synonym of Aequipecten, Genus
Peratoma, Genus – synonym of Raphitoma, Genus
Peringia, Genus – synonym of Hydrobia, Genus
Peronaea, Genus – synonym of Tellina, Genus
Peronaeoderma, Genus – synonym of Tellina, Genus
Peronidia, Genus – synonym of Tellina, Genus
Perparthenina, Genus – synonym of Chrysallida, Genus
Persephona, Genus – synonym of Rissoa, Genus
Petricolaria, Genus – synonym of Petricola, Genus
Pharax, Genus – synonym of Phaxas, Genus
Phascoliophila, Genus – synonym of Montacuta, Genus
Phasmatoteuthion, Genus – synonym of Galiteuthis, Genus
Pherusa, Genus – synonym of Aclis, Genus
Pherusina, Genus – synonym of Aclis, Genus
Philbertia, Genus – synonym of Raphitoma, Genus
Philippia, Genus – synonym of Pecten, Genus
Phillingwynia, Genus – synonym of Philine, Genus
Pholadiarius, Genus – synonym of Pholas, Genus
Pholeobia, Genus – synonym of Hiatella, Genus
Phorculellus, Genus – synonym of Gibbula, Genus
Phorculus, Genus – synonym of Gibbula, Genus
Phorcus, Genus – synonym of Gibbula, Genus
Phylloteredo, Genus – synonym of Nototeredo, Genus
Physopneumon, Genus – synonym of Hermaea, Genus
Pictijubinus, Genus – synonym of Jujubinus, Genus
Pileopsis, Genus – synonym of Capulus, Genus
Pilidium, Genus – synonym of Iothia, Genus
Pingoteredo, Genus – synonym of Teredo, Genus
Pinon, Genus – synonym of Trophon, Genus
Planimodiola, Genus – synonym of Musculus, Genus
Pleurobranchomorpha, Ordo – synonym of Notaspidea, Ordo
Pleurophyllidea, Genus – synonym of Armina, Genus
Pleurophyllidia, Genus – synonym of Armina, Genus
Plicarcularia, Genus – synonym of Nassarius, Genus
Ploiochiton, Genus – synonym of Lepidochitona, Genus
Polia, Genus – synonym of Pharus, Genus
Politapes, Genus – synonym of Paphia, Genus
Politoleda, Genus – synonym of Nuculana, Genus
Polypus, Genus – synonym of Octopus, Genus
Polytropa, Genus – synonym of Nucella, Genus
Polytropalicus, Genus – synonym of Nucella, Genus
Pontolimax, Genus – synonym of Limapontia, Genus
Poronia, Genus – synonym of Lasaea, Genus
Porosichlamys, Genus – synonym of Chlamys, Genus
Potidoma, Genus – synonym of Epilepton, Genus
Potidoma, Genus – synonym of Lepton, Genus
Pragmopholas, Genus – synonym of Pholas, Genus
Precuthona, Genus – synonym of Cuthona, Genus
Profundialvania, Genus – synonym of Alvania, Genus
Promantellum, Genus – synonym of Limaria, Genus
Propebela, Genus – synonym of Oenopota, Genus
Proteopecten, Genus – synonym of Chlamys, Genus
Protoxylophaga, Genus – synonym of Xylophaga, Genus
Pruvotaplysia, Genus – synonym of Aplysia, Genus
Psammacoma, Genus – synonym of Macoma, Genus
Psammobella, Genus – synonym of Gari, Genus
Psammobia, Genus – synonym of Gari, Genus
Psammobia, Genus – synonym of Solecurtus, Genus
Psammophila, Genus – synonym of Lutraria, Genus
Psammosolen, Genus – synonym of Solecurtus, Genus
Pseudaxinaea, Genus – synonym of Glycymeris, Genus
Pseudoalvania, Genus – synonym of Alvania, Genus
Pseudodiloma, Genus – synonym of Gibbula, Genus
Pseudosilinus, Genus – synonym of Osilinus, Genus
Pterochilus, Genus – synonym of Embletonia, Genus
Pterogasteron, Genus – synonym of Elysia, Genus
Ptychina, Genus – synonym of Thyasira, Genus
Ptychostomon, Genus – synonym of Odostomia, Genus
Pullastra, Genus – synonym of Venerupis, Genus
Punctulum, Genus – synonym of Alvania, Genus
Pupillaria, Genus – synonym of Margarites, Genus
Pusula, Genus – synonym of Trivia, Genus
Puteolus, Genus – synonym of Gibbula, Genus
Pyrgiscus, Genus – synonym of Turbonilla, Genus
Pyrolofusus, Genus – synonym of Volutopsius, Genus
Pyrulofusus, Genus – synonym of Volutopsius, Genus