- pomabambensis, Steeriana cajamarcana pomabambensis (F.E. Loosjes & F.E. Loosjes, 1989) - (CLAUSILIIDAE)
- Pomacea, Genus Pomacea G. Perry, 1811 (AMPULLARIIDAE)
- pomacella, Helix pomacella A. Mousson, 1854 - (HELICIDAE)
- pomachacanum, Apotocardium pomachacanum (Chronic, 1949 †) - (BRANSONIIDAE) (FOSSIL)
- pomahaka, Amalda pomahaka F.W. Hutton, 1873 † - syn of: Melanopsis pomahaka (F.W. Hutton, 1873 †) - (ANCILLARIIDAE) (FOSSIL)
- pomahaka, Melanopsis pomahaka (F.W. Hutton, 1873 †) - (MELANOPSIDAE) (FOSSIL)
- pomahakaensis, Vittina pomahakaensis (Finlay, 1924 †) - (NERITIDAE) (FOSSIL)
- pomahakensis, Batillaria pomahakensis G.F. Harris, 1897 † - (BATILLARIIDAE) (FOSSIL)
- Pomahakia, Genus Pomahakia Finlay, 1927 † (BUCCINIDAE) (FOSSIL)
- pomara, Mangelia pomara W.H. Dall, 1919 - (MANGELIIDAE)
- Pomarangina, Genus Pomarangina Diener, 1906 † (HIPPURITIDA (UNASSIGNED)) (FOSSIL)
- pomareae, Leporiconus pomareae E. Monnier & L. Limpalaër, 2014 - (CONIDAE)
- pomarium, Chaetopleura pomarium K.H. Barnard, 1963 - (CHAETOPLEURIDAE)
- pomatea, Pecten pomatea A. Valenciennes, 1846 - syn of: Argopecten ventricosus (G.B. II Sowerby, 1842) - (PECTINIDAE)
- pomatella, Helix pomatella Kobelt, 1876 - (HELICIDAE)
- pomatia, Pomacea pomatia (E.C. Von Martens, 1857) - (AMPULLARIIDAE)
- pomatia, Helix pomatia C. Linnaeus, 1758 - (HELICIDAE)
- Pomatia, syn of: Genus Helix C. Linnaeus, 1758 (HELICIDAE)
- pomatia costelata, Helix pomatia costelata W. Kobelt, 1906 - (HELICIDAE)
- pomatia duschekensis, Helix pomatia duschekensis B.M. Pokryszko, 2008 - syn of: Helix buchii F. Dubois De Montpéreux, 1839 - (HELICIDAE)
- pomatia sabulosa, Helix pomatia sabulosa J. Hazay, 1881 - (HELICIDAE)
- pomatiaeformis, Macropalaina pomatiaeformis (A. Mousson, 1870) - (DIPLOMMATINIDAE)
- Pomatiana, syn of: Genus Helix C. Linnaeus, 1758 (HELICIDAE)
- pomatias, Alopia pomatias (L. Pfeiffer, 1865) - (CLAUSILIIDAE)
- Pomatias, Genus Pomatias S.E. Studer, 1789 (POMATIIDAE)
- pomatias albicostata, Alopia pomatias albicostata H. Nordsieck, 1995 - (CLAUSILIIDAE)
- POMATIASIDAE - syn of Family: POMATIIDAE
- Pomatiella, syn of: Subgenus Cochlostoma (Auritus) C.A. Westerlund, 1883 (COCHLOSTOMATIDAE)
- Pomatiella, syn of: Genus Helix C. Linnaeus, 1758 (HELICIDAE)
- pomatiella, Sigatica pomatiella (J.C. Melvill, 1893) - (NATICIDAE)
- POMATIIDAE Newton, 1891 - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-LITTORINIMORPHA [Order]-LITTORINOIDEA [Superfamily])
- POMATIOPSIDAE Stimpson, 1865 - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-LITTORINIMORPHA [Order]-TRUNCATELLOIDEA [Superfamily])
- Pomatiopsis, Genus Pomatiopsis G.W. Tryon, 1862 (POMATIOPSIDAE)
- Pomatopyrgus, syn of: Genus Potamopyrgus W. Stimpson, 1865 (TATEIDAE)
- pomatus, Phyllonotus pomatus E.H. Vokes, 1989 † - (MURICIDAE) (FOSSIL)
- Pomaulax, Genus Pomaulax J.E. Gray, 1850 (TURBINIDAE)
- pombali, Parviturbo pombali F. Rubio, E. Rolán & R. Fernández-Garcés, 2015 - (SKENEIDAE)
- Pomella, syn of: Genus Pomacea G. Perry, 1811 (AMPULLARIIDAE)
- Pomerania, Genus Pomerania Arkell, 1937 † (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- Pomerantsoceras, Genus Pomerantsoceras Kröger , 2007 † (GRACILOCERATIDAE) (FOSSIL)
- pomeroyense, Stenocadoceras pomeroyense Imlay, 1953 † - (CADOCERATIDAE) (FOSSIL)
- pomeyroli, Ethmocardium pomeyroli (Keen 1954) † - (CARDIIDAE) (FOSSIL)
- pomiformis, Phyllonotus pomiformis K.E.I. von Eichwald, 1853 † - (MURICIDAE) (FOSSIL)
- pomiformis, Murex pomiformis É.A.A. Locard, 1897 - syn of: Phyllonotus pomum (J.F. Gmelin, 1791) - (MURICIDAE)
- pomiformis, Murex pomiformis O.A.L. Mörch, 1852 - syn of: Phyllonotus pomum (J.F. Gmelin, 1791) - (MURICIDAE)
- pomila, Physella heterostropha pomila (T.A. Conrad, 1834) - (PHYSIDAE)
- pomilia, Acteon pomilia T.A. Conrad, 1833 † - (ACTEONIDAE) (FOSSIL)
- pomilia, Lucina pomilia † - (LUCINIDAE) (FOSSIL)
- pomilia, Cavilinga pomilia (T.A. Conrad, 1833 †) - (LUCINIDAE) (FOSSIL)
- pomilia, Haitia pomilia (T.A. Conrad, 1834) - (PHYSIDAE)
- pomilia alveata, Cavilinga pomilia alveata (T.A. Conrad, 1833) - (LUCINIDAE)
- Pomiropecten, syn of: Genus Pamiropecten Romanov, 1985 † (PECTINIDAE) (FOSSIL)
- Pomiscala, syn of: Genus Gyroscala De Boury, 1887 (EPITONIIDAE)
- pomjuk, Krobylos pomjuk S. Panha & Burch, 1999 † - (HYPSELOSTOMATIDAE) (FOSSIL)
- pommerana, Ovactaeonina pommerana Grundel, 1999 † - (ACTEONINIDAE) (FOSSIL)
- pommerana, Jurilda pommerana Grundel, 1997 † - (MATHILDIDAE) (FOSSIL)
- pommeraniae, Laiocochlis pommeraniae R.W. Dunker & A. Metzger, 1874 - syn of: Laeocochlis sinistratus (P. Nyst, 1835) - (NEWTONIELLIDAE)
- pommeranum, Gordenella pommeranum (A. Schmidt, 1905 †) - (GORDENELLIDAE) (FOSSIL)
- Pommerhelix, Genus Pommerhelix S.A. Clark, 2009 (CAMAENIDAE)
- Pommerozygia, Genus Pommerozygia Gründel , 1998 † (POMMEROZYGIIDAE) (FOSSIL)
- POMMEROZYGIIDAE Gründel, 1999 † - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-PERUNELOIDEA [Superfamily]) (FOSSIL)
- pommum, Malea pommum C. Linnaeus, 1758 - syn of: Malea pomum (C. Linnaeus, 1758) - (TONNIDAE)
- pomoensis, Helminthoglypta arrosa pomoensis (W.G. Binney, 1858) - (HELMINTHOGLYPTIDAE)
- Pompalabia, syn of: Genus Rhynchotrochus O.F. von Möllendorff, 1895 (CAMAENIDAE)
- pompatica, Odontohydrobia pompatica M. Harzhauser & al., 2012 † - (HYDROBIIDAE) (FOSSIL)
- pompe, Calliostoma pompe K.H. Barnard, 1958 - syn of: Calliotropis pompe K.H. Barnard, 1963 - (CALLIOSTOMATIDAE)
- pompe, Calliotropis pompe K.H. Barnard, 1963 - (CALLIOTROPIDAE)
- Pompeckioceras, Genus Pompeckioceras Spath, 1925 † (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- pompeckji, Cranocephalites pompeckji (Madsen, 1904 †) - (CADOCERATIDAE) (FOSSIL)
- pompeckji, Cheiloceras pompeckji Wedekind, 1918 † - syn of: Staffites ovatum (Münster, 1832 †) - (CHEILOCERATIDAE) (FOSSIL)
- pompeckji, Clymenia pompeckji Wedekind, 1914 † - syn of: Platyclymenia pompeckji (Wedekind, 1914 †) - (CLYMENIIDAE) (FOSSIL)
- pompeckji, Lobites pompeckji Mojsisovics, 1902 † - (LOBITIDAE) (FOSSIL)
- pompeckji, Calloconus pompeckji J. Perner, 1903 † - (METOPTOMATIDAE) (FOSSIL)
- pompeckji, Garantiana pompeckji Wetzel, 1911 † - (PARKINSONIIDAE) (FOSSIL)
- pompeckji, Platyclymenia pompeckji (Wedekind, 1914 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- pompeckji, Varioclymenia pompeckji Wedekind, 1914 † - syn of: Platyclymenia pompeckji (Wedekind, 1914 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- pompeckji, Mimimitoceras pompeckji (Schindewolf, 1923 †) - (PRIONOCERATIDAE) (FOSSIL)
- pompeckji, Sporadoceras pompeckji Wedekind, 1918 † - (SPORADOCERATIDAE) (FOSSIL)
- pompeckji, Linguatornoceras pompeckji (Wedekind, 1918 †) - (TORNOCERATIDAE) (FOSSIL)
- pompeckji decora, Varioclymenia pompeckji decora Kind, 1944 † - syn of: Platyclymenia pompeckji (Wedekind, 1914 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- pompeckji gastriforme, Cheiloceras pompeckji gastriforme Becker, 1993 † - syn of: Puncticeras gastriforme Becker, 1993 † - (CHEILOCERATIDAE) (FOSSIL)
- pompeckji kasakhstanica, Varioclymenia pompeckji kasakhstanica Kind, 1944 † - syn of: Platyclymenia pompeckji (Wedekind, 1914 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- pompeckji senilis, Varioclymenia pompeckji senilis C.N. Lange, 1929 † - syn of: Platyclymenia pompeckji (Wedekind, 1914 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- Pompeckjina, Genus Pompeckjina Schindewolf, 1924 † (PTERIIDA (UNASSIGNED)) (FOSSIL)
- Pompeckjites, Subgenus Pinacoceras (Pompeckjites) Hauer, 1847 † (PINACOCERATIDAE) (FOSSIL)
- pompeckyi, Lunuloceras pompeckyi C.F. Parona & Bonarelli, 1895 † - syn of: Lunuloceras lunula (Reinecke, 1818 †) - (OPPELIIDAE) (FOSSIL)
- pompei, Acteonella pompei C.J. Maury, 1930 † - (ACTEONELLIDAE) (FOSSIL)
- pompeiana, Cernuella pompeiana É.A.A. Locard, 1882 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- pompeyense, Brevicoceras pompeyense Flower, 1938 † - (BREVICOCERATIDAE) (FOSSIL)
- pompholax, Bathyarca pompholax W.H. Dall, 1908 - (ARCIDAE)
- Pompholigina, Genus Pompholigina W.H. Dall, 1901 (LUCINIDAE)
- pompholugota, Solariella pompholugota (R.B. Watson, 1879) - (SOLARIELLIDAE)
- pompholugota, Triviella pompholugota (R. Tate, 1890 †) - (TRIVIIDAE) (FOSSIL)
- Pompholycodea, syn of: Subgenus Vorticifex (Parapholyx) G.D. Hanna, 1922 (PLANORBIDAE)
- pompholyx, Amaea pompholyx (W.H. Dall, 1890) - (EPITONIIDAE)
- pompholyx, Atys pompholyx W.H. Dall, 1895 † - (HAMINOEIDAE) (FOSSIL)
- pompholyx, Helicina pompholyx H.A. Pilsbry, 1933 - (HELICINIDAE)
- pompholyx, Cyclostrema pompholyx W.H. Dall, 1889 - (LIOTIIDAE)
- pompholyx, Pseudoglomus pompholyx (W.H. Dall, 1889) - (MALLETIIDAE)
- pompholyx, Mangilia pompholyx W.H. Dall, 1889 - syn of: Xanthodaphne pompholyx (W.H. Dall, 1889) - (MANGELIIDAE)
- pompholyx, Leda pompholyx W.H. Dall, 1889 - syn of: Pseudoglomus pompholyx (W.H. Dall, 1889) - (NUCULANIDAE)
- Pompholyx, syn of: Subgenus Vorticifex (Parapholyx) G.D. Hanna, 1922 (PLANORBIDAE)
- pompholyx, Xanthodaphne pompholyx (W.H. Dall, 1889) - (RAPHITOMIDAE)
- pompholyx, Daphnella pompholyx W.H. Dall, 1889 - syn of: Xanthodaphne pompholyx (W.H. Dall, 1889) - (RAPHITOMIDAE)
- pompholyx, Rissoa pompholyx W.H. Dall, 1927 - (RISSOIDAE)
- pompholyx, Yoldia pompholyx W.H. Dall, 1889 - syn of: Pseudoglomus pompholyx (W.H. Dall, 1889) - (YOLDIIDAE)
- pomphylyx, Haminoea pomphylyx W.H. Dall, 1896 † - (HAMINOEIDAE) (FOSSIL)
- pompiliodes, Minolia pompiliodes J.C. Melvill, 1891 - (SOLARIELLIDAE)
- pompilius, Janulus pompilius (R.J. Shuttleworth, 1852) - (GASTRODONTIDAE)
- pompilius, Nautilus pompilius C. Linnaeus, 1758 - (NAUTILIDAE)
- pompilius perforatus, Nautilus pompilius perforatus E.O. Willey, 1896 - (NAUTILIDAE)
- pompilius repertus, Nautilus pompilius repertus T. Iredale, 1944 - (NAUTILIDAE)
- pompilius suluensis, Nautilus pompilius suluensis T. Habe & T.A. Okutani, 1988 - (NAUTILIDAE)
- pompona, Strobiligera pompona (W.H. Dall, 1927) - (TRIPHORIDAE)
- pompona, Inella pompona (W.H. Dall, 1927) - syn of: Strobiligera pompona (W.H. Dall, 1927) - (TRIPHORIDAE)
- pomponeti, Conasprella pomponeti (E.J. Petuch & B.W. Myers, 2014) - (CONIDAE)
- pomponeti, Jaspidiconus pomponeti E.J. Petuch & B.W. Myers, 2014 - syn of: Conasprella pomponeti (E.J. Petuch & B.W. Myers, 2014) - (CONIDAE)
- pomponium, Pionoceras pomponium (Billing, 1862 †) - (TARPHYCERATIDAE) (FOSSIL)
- pomponius, Nautilus pomponius Billing, 1862 † - syn of: Pionoceras pomponium (Billing, 1862 †) - (NAUTILIDAE) (FOSSIL)
- pompylius, Janulus pompylius (R.J. Shuttleworth, 1852) - (GASTRODONTIDAE)
- pomum, Pomacea pomum (R.A. Philippi, 1851) - (AMPULLARIIDAE)
- pomum, Xanthomelon pomum L. Pfeiffer, 1842 - syn of: Xanthomelon durvillii (J.B. Hombron & C.H. Jacquinot, 1841) - (CAMAENIDAE)
- pomum, Phalium pomum G.H. Schubert & J.A. Wagner, 1829 - syn of: Semicassis saburon (J.G. Bruguière, 1792) - (CASSIDAE)
- pomum, Phyllonotus pomum (J.F. Gmelin, 1791) - (MURICIDAE)
- pomum, Chicoreus pomum J.F. Gmelin, 1791 - syn of: Phyllonotus pomum (J.F. Gmelin, 1791) - (MURICIDAE)
- pomum, Murex pomum Auct. non J.F. Gmelin, 1791 - syn of: Hexaplex bifasciatus (A. Adams, 1853) - (MURICIDAE)
- pomum, Natica pomum R.A. Philippi, 1851 - syn of: Euspira heros (T. Say, 1822) - (NATICIDAE)
- pomum, Malea pomum (C. Linnaeus, 1758) - (TONNIDAE)
- pomum, Tonna pomum P.F. Röding, 1798 - syn of: Malea pomum (C. Linnaeus, 1758) - (TONNIDAE)
- pomum macgregori, Tonna pomum macgregori T. Iredale, 1931 - syn of: Malea pomum (C. Linnaeus, 1758) - (TONNIDAE)
- pomum macgregori, Malea pomum macgregori T. Iredale, 1931 - syn of: Malea pomum (C. Linnaeus, 1758) - (TONNIDAE)
- pomum mexicanus, Phyllonotus pomum mexicanus (S.A.A. Petit De La Saussaye, 1852) - (MURICIDAE)
- pomum noronhensis, Malea pomum noronhensis (L.A. Reeve, 1851) - (TONNIDAE)
- pomum noronhensis, Malea pomum noronhensis M. Kempf & H.R. Matthews, 1969 - syn of: Malea pomum (C. Linnaeus, 1758) - (TONNIDAE)
- pomum oculatus, Phyllonotus pomum oculatus L.A. Reeve, 1845 - syn of: Phyllonotus oculatus (L.A. Reeve, 1845) - (MURICIDAE)
- Pomus, syn of: Genus Pila P.F. Röding, 1798 (AMPULLARIIDAE)
- Ponapea, Subgenus Dendrotrochus (Ponapea) F.C. Baker, 1941 (HELICARIONIDAE)
- Ponapella, Genus Ponapella W.J. Clench, 1946 (ASSIMINEIDAE)
- ponapensis, Tornatellinops ponapensis (H.A. Pilsbry & C.M. Cooke, 1915) - (ACHATINELLIDAE)
- ponapensis, Thaanumella cookei ponapensis W.J. Clench, 1946 - (ASSIMINEIDAE)
- ponapensis, Dendrotrochus ponapensis H.B. Baker, 1941 - (HELICARIONIDAE)
- ponapica, Nesopupa ponapica (O.F. von Möllendorff, 1900) - (VERTIGINIDAE)
- ponapicus, Palikirus ponapicus (O.F. von Möllendorff, 1900) - (CHAROPIDAE)
- poncebensis, Pyrenaearia poncebensis A. Ortiz De Zárate, 1956 - (HYGROMIIDAE)
- poncei, Mitrolumna poncei J. Gardner, 1937 † - (MITROMORPHIDAE) (FOSSIL)
- ponceliana, Vitrinella ponceliana L. de Folin, 1867 - (TORNIDAE)
- ponceti, Phragmosphaera ponceti Blodgett & al., 1999 † - (PTEROTHECIDAE) (FOSSIL)
- ponciana, Clathrodrillia ponciana W.H. Dall & C.T. Simpson, 1901 - syn of: Crassispira nigrescens (C.B. Adams, 1845) - (DRILLIIDAE)
- ponciana, Drillia ponciana W.H. Dall & C.T. Simpson, 1901 - syn of: Crassispira nigrescens (C.B. Adams, 1845) - (DRILLIIDAE)
- ponciana virgata, Drillia ponciana virgata G.W. Nowell-Usticke, 1969 - syn of: Crassispira latizonata (E.A. Smith, 1882) - (DRILLIIDAE)
- Ponda, syn of: Genus Lyncina F.H. Troschel, 1863 (CYPRAEIDAE)
- ponderata, Ctenodonta ponderata Barrande, 1881 † - syn of: Concavodonta ponderata (Barrande, 1881 †) - (CTENODONTIDAE) (FOSSIL)
- ponderata, Nucula ponderata Barrande, 1881 † - syn of: Concavodonta ponderata (Barrande, 1881 †) - (NUCULIDAE) (FOSSIL)
- ponderata, Concavodonta ponderata (Barrande, 1881 †) - (PRAENUCULIDAE) (FOSSIL)
- Ponderconcha, Genus Ponderconcha S.A. Clark, 2009 (CAMAENIDAE)
- ponderi, Austrorissopsis ponderi J. Grant-Mackie & M. Chapman-Smith, 1971 † - (ACLIDIDAE) (FOSSIL)
- ponderi, Pisinna ponderi S. Palazzi, 1983 - (ANABATHRIDAE)
- ponderi, Amalda ponderi T. Ninomiya, 1991 - (ANCILLARIIDAE)
- ponderi, Heliacus ponderi (T.A. Garrard, 1978) - (ARCHITECTONICIDAE)
- ponderi, Amplirhagada ponderi F. Köhler, 2010 - (CAMAENIDAE)
- ponderi, Dirutrachia ponderi G.A. Solem, 1993 - (CAMAENIDAE)
- ponderi, Tritonoharpa ponderi A.G. Beu & P.A. Maxwell, 1987 - (CANCELLARIIDAE)
- ponderi, Pseudallodiscus ponderi F.M. Climo, 1971 - (CHAROPIDAE)
- ponderi, Skenella ponderi (E.A. Kay, 1979) - (CINGULOPSIDAE)
- ponderi, Fissidentalium ponderi K.L. Lamprell & J.M. Healy, 1998 - (DENTALIIDAE)
- ponderi, Entomope ponderi D.T. Dockery, 1993 † - (ELACHISINIDAE) (FOSSIL)
- ponderi, Echineulima ponderi A. Warén, 1980 - (EULIMIDAE)
- ponderi, Levidens ponderi I. Hyman, 2007 - (HELICARIONIDAE)
- ponderi, Pseudonoba ponderi Boettger, 1901 † - syn of: Inyoceras multicameratus (Smith, 1914 †) - (IRAVADIIDAE) (FOSSIL)
- ponderi, Choristella ponderi J.H. McLean, 1992 - (LEPETELLIDAE)
- ponderi, Limatula ponderi Fleming, 1978 - (LIMIDAE)
- ponderi, Aspella ponderi G.E. Radwin & D'Attilio, 1976 - (MURICIDAE)
- ponderi, Favartia ponderi B.W. Myers & D'Attilio, 1989 - (MURICIDAE)
- ponderi, Oliva caerulea ponderi E.J. Petuch & D.M. Sargent, 1986 - (OLIVIDAE)
- ponderi, Orbitestella ponderi K. Linse, 2002 - (ORBITESTELLIDAE)
- ponderi, Notocrater ponderi B.A. Marshall, 1986 - (PSEUDOCOCCULINIDAE)
- ponderi, Sassia ponderi A.G. Beu, 1987 - (RANELLIDAE)
- ponderi, Ihungia ponderi P.A. Maxwell, 1988 † - (RISSOIDAE) (FOSSIL)
- ponderi, Powellisetia ponderi H. Numanami, 1996 - (RISSOIDAE)
- ponderi, Putilla ponderi (P.A. Maxwell, 1992 †) - (SEGUENZIOIDEA (UNASSIGNED)) (FOSSIL)
- ponderi, Pisidium ponderi A. Korniushin, 2000 - (SPHAERIIDAE)
- ponderi, Camponaxis ponderi S. Kiel & K. Bandel, 2003 † - (TOFANELLIDAE) (FOSSIL)
- ponderi, Austrotrochaclis ponderi B.A. Marshall, 1995 - (TROCHACLIDIDAE)
- ponderi, Microvoluta ponderi W.O. Cernohorsky, 1975 - syn of: Microvoluta intermedia (W.H. Dall, 1890) - (VOLUTOMITRIDAE)
- Ponderia, Genus Ponderia R. Houart, 1986 (MURICIDAE)
- Ponderinella, Genus Ponderinella B.A. Marshall, 1988 (TORNIDAE)
- Ponderisepia, Genus Ponderisepia Iredale, 1926 (SEPIIDAE)
- Ponderoceras, Genus Ponderoceras K. Bandel, 1996 (CAECIDAE)
- ponderorum, Teretriphora ponderorum B.A. Marshall, 1983 - (TRIPHORIDAE)
- ponderosa, Mytilarca ponderosa J.W. Hall & R.P. Whitfield, 1869 † - (AMBONYCHIIDAE) (FOSSIL)
- ponderosa, Amaurellina ponderosa (G.P. Deshayes, 1825 †) - (AMPULLINIDAE) (FOSSIL)
- ponderosa, Anadara ponderosa T. Say, 1822 - syn of: Eontia ponderosa (T. Say, 1822) - (ARCIDAE)
- ponderosa, Arca ponderosa T. Say, 1822 - syn of: Eontia ponderosa (T. Say, 1822) - (ARCIDAE)
- ponderosa, Baryvellia ponderosa Waller 2005 † - (BAKEVELLIIDAE) (FOSSIL)
- ponderosa, Bursa ponderosa L.A. Reeve, 1844 - syn of: Bursa corrugata ponderosa (L.A. Reeve, 1844) - (BURSIDAE)
- ponderosa, Bursa ponderosa Auct. non L.A. Reeve, 1844 - syn of: Bursa corrugata pustulosa L.A. Reeve, 1844 - (BURSIDAE)
- ponderosa, Bursa corrugata ponderosa (L.A. Reeve, 1844) - (BURSIDAE)
- ponderosa, Mandarina ponderosa H.A. Pilsbry, 1901 - (CAMAENIDAE)
- ponderosa, Pachyopis ponderosa (Eudes-Deslongchamps 1883) † - (CARDIIDA (UNASSIGNED)) (FOSSIL)
- ponderosa, Cardinia ponderosa W.M. Gabb, 1869 † - (CARDINIIDAE) (FOSSIL)
- ponderosa, Megacardita ponderosa H.H. Suter, 1913 † - (CARDITIDAE) (FOSSIL)
- ponderosa, Casmaria ponderosa (J.F. Gmelin, 1791) - (CASSIDAE)
- ponderosa, Tilicrassatella ponderosa (R.A. Philippi, 1887 †) - (CRASSATELLIDAE) (FOSSIL)
- ponderosa, Crassatella ponderosa (J.F. Gmelin, 1791 †) - (CRASSATELLIDAE) (FOSSIL)
- ponderosa, Cucullaea ponderosa F.W. Hutton, 1873 † - (CUCULLAEIDAE) (FOSSIL)
- ponderosa, Cyrtodonta ponderosa Billings, 1865 † - (CYRTODONTIDAE) (FOSSIL)
- ponderosa, Ellobium ponderosa A.E.J. Férussac, 1821 - (ELLOBIIDAE)
- ponderosa, Boreoscala ponderosa E.F. Garcia, 2003 - (EPITONIIDAE)
- ponderosa, Leucozonia ponderosa G.J. Vermeij & M.A. Snyder, 1998 - (FASCIOLARIIDAE)
- ponderosa, Pleuroploca ponderosa (I.H. Jonas, 1850) - (FASCIOLARIIDAE)
- ponderosa, Exogyra ponderosa F.A. Roemer, 1852 † - (GRYPHAEIDAE) (FOSSIL)
- ponderosa, Haliotis ponderosa C.B. Adams, 1848 - syn of: Haliotis rufescens W.J. Swainson, 1822 - (HALIOTIDAE)
- ponderosa, Cincinnatia ponderosa F.G. Thompson, 1968 - (HYDROBIIDAE)
- ponderosa, Gasconadeoconus ponderosa Stinchcomb, 1986 † - (HYPSELOCONIDAE) (FOSSIL)
- ponderosa, Lucinella ponderosa T. Prime, 1852 - syn of: Sphaerium simile T. Say, 1817 - (LUCINIDAE)
- ponderosa, Teiichispira ponderosa (Billings, 1865 †) - (MACLURITIDAE) (FOSSIL)
- ponderosa, Mactrodesma ponderosa (T.A. Conrad, 1830 †) - (MACTRIDAE) (FOSSIL)
- ponderosa, Mactra ponderosa R.A. Philippi, 1844 - syn of: Mactromeris polynyma (W. Stimpson, 1860) - (MACTRIDAE)
- ponderosa, Gingicithara ponderosa (L.A. Reeve, 1846) - (MANGELIIDAE)
- ponderosa, Pugilina ponderosa Martin, 1895 † - (MELONGENIDAE) (FOSSIL)
- ponderosa, Nassa ponderosa L.A. Reeve, 1854 - syn of: Demoulia obtusata (J.H.F. Link, 1807) - (NASSARIIDAE)
- ponderosa, Natica ponderosa R.A. Philippi, 1849 - syn of: Polinices mammilla ponderosa R.A. Philippi, 1849 - (NATICIDAE)
- ponderosa, Polinices mammilla ponderosa R.A. Philippi, 1849 - (NATICIDAE)
- ponderosa, Eontia ponderosa (T. Say, 1822) - (NOETIIDAE)
- ponderosa, Noetia ponderosa T. Say, 1822 - syn of: Eontia ponderosa (T. Say, 1822) - (NOETIIDAE)
- ponderosa, Oliva ponderosa P.L. Duclos, 1835 - (OLIVIDAE)
- ponderosa, Holandriana ponderosa (J.R. Bourguignat, 1884) - (PLEUROCERIDAE)
- ponderosa, Melanella ponderosa J.R. Bourguignat, 1884 - syn of: Holandriana ponderosa (J.R. Bourguignat, 1884) - (PLEUROCERIDAE)
- ponderosa, Ranella ponderosa L.A. Reeve, 1844 - syn of: Bursa corrugata ponderosa (L.A. Reeve, 1844) - (RANELLIDAE)
- ponderosa, Thersitea ponderosa Coquand, 1862 † - (THERSITEIDAE) (FOSSIL)
- ponderosa, Turbinella ponderosa (J. Lightfoot, 1786) - (TURBINELLIDAE)
- ponderosa, Pseudodon ponderosa H.B. Preston, 1909 - syn of: Pseudodon chaperi (J.J.M. de Morgan, 1885) - (UNIONIDAE)
- ponderosa, Oxynaia jourdyi ponderosa (P. Dautzenberg & H. Fischer, 1905) - (UNIONIDAE)
- ponderosa, Tivela ponderosa (F.C.L. Koch in R.A. Philippi, 1844) - (VENERIDAE)
- ponderosa, Dosinia ponderosa Gray, 1838 - (VENERIDAE)
- ponderosa, Periglypta ponderosa H.C.F. Schumacher, 1817 - syn of: Meretrix meretrix (C. Linnaeus, 1758) - (VENERIDAE)
- ponderosa, Pliocardia ponderosa (K.J. Boss, 1968) - (VESICOMYIDAE)
- ponderosa, Campeloma ponderosa T. Say, 1817 - syn of: Campeloma decisum (T. Say, 1817) - (VIVIPARIDAE)
- ponderosa atlantica, Casmaria ponderosa atlantica W.J. Clench, 1944 - syn of: Casmaria atlantica W.J. Clench, 1944 - (CASSIDAE)
- ponderosa bicolor, Casmaria ponderosa bicolor P. Dautzenberg, 1926 - (CASSIDAE)
- ponderosa cernica, Casmaria ponderosa cernica G.B. III Sowerby, 1888 - syn of: Casmaria cernica (G.B. III Sowerby, 1888) - (CASSIDAE)
- ponderosa nipponensis, Casmaria ponderosa nipponensis R.T. Abbott, 1968 - syn of: Casmaria cernica (G.B. III Sowerby, 1888) - (CASSIDAE)
- ponderosa nodulosa, Casmaria ponderosa nodulosa (J.F. Gmelin, 1791) - (CASSIDAE)
- ponderosa perryi, Casmaria ponderosa perryi T. Iredale, 1912 - syn of: Casmaria perryi (T. Iredale, 1912) - (CASSIDAE)
- ponderosa quadrata, Casmaria ponderosa quadrata J.H.F. Link, 1807 - syn of: Casmaria ponderosa (J.F. Gmelin, 1791) - (CASSIDAE)
- ponderosa turgida, Casmaria ponderosa turgida L.A. Reeve, 1848 - syn of: Casmaria turgida (L.A. Reeve, 1848) - (CASSIDAE)
- ponderosa unicolor, Casmaria ponderosa unicolor P. Dautzenberg, 1926 - syn of: Casmaria unicolor (P.M. Pallary, 1926) - (CASSIDAE)
- ponderosum, Ancylotropaeum ponderosum (T.L. Casey, 1980 †) - (ANCYLOCERATIDAE) (FOSSIL)
- ponderosum, Buccinum ponderosum J.F. Gmelin, 1791 - syn of: Casmaria ponderosa nodulosa (J.F. Gmelin, 1791) - (BUCCINIDAE)
- ponderosum, Dentalium dissimile ponderosum W.M. Gabb, 1873 † - (DENTALIIDAE) (FOSSIL)
- ponderosum, Morum ponderosum (S.C.T. Hanley, 1858) - (HARPIDAE)
- ponderosum, Hippopodium ponderosum J. de C. Sowerby, 1819 † - (HIPPOPODIUMIDAE) (FOSSIL)
- ponderosum, Cyclostoma ponderosum L. Pfeiffer, 1851 - syn of: Amphicyclotus ponderosus (L. Pfeiffer, 1851) - (POMATIIDAE)
- ponderosum, Pisidium ponderosum A. Mori, 1938 - syn of: Pisidium casertanum (Poli, 1791) - (SPHAERIIDAE)
- ponderosum, Anodonta ponderosum C. Pfeiffer, 1825 - syn of: Anodonta anatina (C. Linnaeus, 1758) - (UNIONIDAE)
- ponderosum rumanicum, Colletopterum ponderosum rumanicum A. Letourneux in J.R. Bourguignat, 1881 - syn of: Anodonta anatina (C. Linnaeus, 1758) - (UNIONIDAE)
- ponderosus, Aviculopecten ponderosus Etheridge & Dun, 1906 † - (AVICULOPECTINIDAE) (FOSSIL)
- ponderosus, Calliostoma ponderosus F.W. Hutton, 1885 - syn of: Maurea selecta (L.W. Dillwyn, 1817) - (CALLIOSTOMATIDAE)
- ponderosus, Conus ponderosus G.B. Brocchi, 1814 † - (CONIDAE) (FOSSIL)
- ponderosus, Dendroconus ponderosus H.H. Beck in G.B. III Sowerby, 1858 - syn of: Calamiconus quercinus (J. Lightfoot, 1786) - (CONIDAE)
- ponderosus, Cyclophorus ponderosus L. Pfeiffer, 1851 - syn of: Amphicyclotus ponderosus (L. Pfeiffer, 1851) - (CYCLOPHORIDAE)
- ponderosus, Paxyodon ponderosus H.C.F. Schumacher, 1817 - syn of: Prisodon syrmatophorus (J.F. Gmelin, 1791) - (HYRIIDAE)
- ponderosus, Chicoreus virgineus ponderosus (G.B. II Sowerby, 1879) - (MURICIDAE)
- ponderosus, Amphicyclotus ponderosus (L. Pfeiffer, 1851) - (NEOCYCLOTIDAE)
- ponderosus, Orthalicus ponderosus H. Strebel, 1882 - (ORTHALICIDAE)
- ponderosus, Tenagodus ponderosus O.A.L. Mörch, 1861 - (SILIQUARIIDAE)
- ponderosus, Tricornis ponderosus R.A. Philippi, 1842 - syn of: Thersistrombus thersites (W.J. Swainson, 1823) - (STROMBIDAE)
- ponderosus, Unio pictorum ponderosus Spitzi in E.A. Rossmässler, 1844 - (UNIONIDAE)
- ponderosus albatus, Orthalicus ponderosus albatus (J.T.L. McGinty, 1939) - (ORTHALICIDAE)
- ponderosus balesi, Orthalicus ponderosus balesi (J.T.L. McGinty, 1939) - (ORTHALICIDAE)
- pondi, Dunveganoceras pondi F. Haas, 1949 † - (ACANTHOCERATIDAE) (FOSSIL)
- pondi, Striaticostatum pondi (L.W. Stephenson, 1941 †) - (EPITONIIDAE) (FOSSIL)
- Pondia, Genus Pondia Oder 1932 † (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- pondica, Albinaria pondica F.W. Welter-Schultes, 2010 - syn of: Albinaria pondika F.W. Welter-Schultes, 2010 - (CLAUSILIIDAE)
- pondicherriensis, Pyrula pondicherriensis E. Forbes, 1846 † - (MELONGENIDAE) (FOSSIL)
- pondicherriensis, Murex pondicherriensis E. Forbes, 1846 † - (MURICIDAE) (FOSSIL)
- pondicherriensis, Tellina pondicherriensis E. Forbes, 1846 - (TELLINIDAE)
- pondicherriensis, Turritella pondicherriensis E. Forbes, 1846 - (TURRITELLIDAE)
- pondicherryanus, Kitchinites pondicherryanus (Kossmat, 1897 †) - (DESMOCERATIDAE) (FOSSIL)
- pondika, Albinaria pondika F.W. Welter-Schultes, 2010 - (CLAUSILIIDAE)
- pondo, Tropidoturris simplicicingula pondo R.N. Kilburn, 1986 - (BORSONIIDAE)
- pondo, Marginella pondo S.G. Veldsman, 2017 - (MARGINELLIDAE)
- pondoensis, Microkerkus pondoensis (Godwin-Austen, 1912) - (UROCYCLIDAE)
- Pondorbis, Genus Pondorbis P. Bartsch, 1915 (SKENEIDAE)
- Ponembryon, syn of: Genus Bothriembryon H.A. Pilsbry, 1894 (BOTHRIEMBRYONTIDAE)
- Ponentina, Genus Ponentina P. Hesse, 1921 (HYGROMIIDAE)
- ponentina, Ponentina ponentina (P.M.A. Morelet, 1845) - (HYGROMIIDAE)
- ponentina, Ponentina ponentina Auct. non P.M.A. Morelet, 1845 - syn of: Ponentina martigena (A.E.J. Férussac, 1832) - (HYGROMIIDAE)
- Poneroplax, Subgenus Plaxiphora (Poneroplax) T. Iredale, 1914 (MOPALIIDAE)
- ponga, Felimida ponga (Er. Marcus & Ev. Marcus, 1970) - (CHROMODORIDIDAE)
- pongensis, Mekongia pongensis (R.A.M. Brandt, 1968) - (VIVIPARIDAE)
- Pongo, Genus Pongo Lacépède, 1799 (Hominidae)
- pongoensis, Cylindronenia pangamitoensis pongoensis H. Nordsieck, 2005 - (CLAUSILIIDAE)
- pongolensis, Rutitrigonia pongolensis Rennie, 1936 † - (RUTITRIGONIIDAE) (FOSSIL)
- poni, Ptychohamulina poni (Simionescu, 1898 †) - (ANAHAMULINIDAE) (FOSSIL)
- poni, Hamulina poni Simionescu, 1898 † - syn of: Ptychohamulina poni (Simionescu, 1898 †) - (HAMULINIDAE) (FOSSIL)
- poni, Ptychoceras poni Simionescu, 1898 † - (PTYCHOCERATIDAE) (FOSSIL)
- ponida, Crassispira ponida W.P. Woodring, 1928 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- poniente, Shasticrioceras poniente F.M. Anderson, 1938 † - (MEGACRIOCERATIDAE) (FOSSIL)
- Ponocyclus, syn of: Genus Cyclostremiscus H.A. Pilsbry & A.A. Olsson, 1945 (TORNIDAE)
- ponori, Deroceras ponori D. Lupu, 1972 - (AGRIOLIMACIDAE)
- ponorica, Daudebardia ponorica A.V. Grossu, 1972 - (OXYCHILIDAE)
- pons, Hoeninghausia pons Glenister, 1958 † - (KOENENITIDAE) (FOSSIL)
- Ponsadenia, Genus Ponsadenia A.A. Schileyko, 1978 (BRADYBAENIDAE)
- ponsaltensis, Ptygmatis ponsaltensis Stanton, 1947 † - (NERINEIDAE) (FOSSIL)
- ponscuspidis, Turehua ponscuspidis A.G. Beu & P.A. Maxwell, 1987 † - (CANCELLARIIDAE) (FOSSIL)
- ponsi, Latiala ponsi S. Kiel & K. Bandel, 2002 † - (APORRHAIDAE) (FOSSIL)
- ponsi, Mesarion ponsi J. Quintana, 2007 - (ARIONIDAE)
- ponsi, Unitas ponsi P. Lozouet, 2015 † - (CANCELLARIIDAE) (FOSSIL)
- ponsi, Amandana nyeli ponsi (J.G. Hidalgo, 1878) - (HYGROMIIDAE)
- ponsi, Nucellopsis ponsi (D. Merle, 1999 †) - (MURICIDAE) (FOSSIL)
- ponsi, Bouryia ponsi J. Le Renard, 1997 † - (POMATIOPSIDAE) (FOSSIL)
- ponsia, Eratoidea ponsia T. McCleery, 2011 - (MARGINELLIDAE)
- Ponsia, Genus Ponsia S. Kiel & K. Bandel, 2001 † (MATHILDIDAE) (FOSSIL)
- ponsianum, Desmoceras ponsianum de Grossouvre 1894 † - (DESMOCERATIDAE) (FOSSIL)
- Ponsonbya, syn of: Genus Baizea J.R. Bourguignat, 1885 (PALUDOMIDAE)
- ponsonbyanus, Anisoloma ponsonbyanus (P.M.A. Morelet, 1839) - (FAUXULIDAE)
- ponsonbyi, Deroceras ponsonbyi P. Hesse, 1884 - (AGRIOLIMACIDAE)
- ponsonbyi, Wiegmannia ponsonbyi W.E. Collinge, 1901 - (ARIOPHANTIDAE)
- ponsonbyi, Assiminea ponsonbyi P.M.A. Morelet, 1889 - (ASSIMINEIDAE)
- ponsonbyi, Buccinulum ponsonbyi (G.B. III Sowerby, 1889) - (BUCCINIDAE)
- ponsonbyi, Drymaeus ponsonbyi S.I. Da Costa, 1907 - (BULIMULIDAE)
- ponsonbyi, Phenacohelix ponsonbyi (H.H. Suter, 1897) - (CHAROPIDAE)
- ponsonbyi, Therasia ponsonbyi H.H. Suter, 1897 - syn of: Phenacohelix ponsonbyi (H.H. Suter, 1897) - (CHAROPIDAE)
- ponsonbyi, Lienardia ponsonbyi G.B. III Sowerby, 1892 - (CLATHURELLIDAE)
- ponsonbyi, Tauphaedusa ponsonbyi (O. Böttger, 1883) - (CLAUSILIIDAE)
- ponsonbyi, Bothropoma ponsonbyi (G.B. III Sowerby, 1897) - (COLLONIIDAE)
- ponsonbyi, Trigonephrus ponsonbyi (H.C. Fulton) - (DORCASIIDAE)
- ponsonbyi, Chondrula ponsonbyi W. Kobelt, 1899 - syn of: Jaminia loewii godetiana W. Kobelt, 1899 - (ENIDAE)
- ponsonbyi, Aphanoconia ponsonbyi (E.A. Smith, 1884) - (HELICINIDAE)
- ponsonbyi, Ponentina ponsonbyi C.A. Westerlund, 1888 - syn of: Ponentina subvirescens (J.C. Bellamy, 1839) - (HYGROMIIDAE)
- ponsonbyi, Margarites ponsonbyi H.B. Preston, 1908 - syn of: Calliotrochus marmoreus (W.H. Pease, 1861) - (MARGARITIDAE)
- ponsonbyi, Marginella ponsonbyi G.B. III Sowerby, 1897 - syn of: Hyalina cylindrica (G.B. II Sowerby, 1846) - (MARGINELLIDAE)
- ponsonbyi, Natica ponsonbyi J.C. Melvill, 1899 - syn of: Natica vitellus (C. Linnaeus, 1758) - (NATICIDAE)
- ponsonbyi, Platevindex ponsonbyi (W.E. Collinge, 1901) - (ONCHIDIIDAE)
- ponsonbyi, Oncis ponsonbyi (W.E. Collinge, 1901) - syn of: Platevindex ponsonbyi (W.E. Collinge, 1901) - (ONCHIDIIDAE)
- ponsonbyi, Bridouxia ponsonbyi E.A. Smith, 1889 - (PALUDOMIDAE)
- ponsonbyi, Ancylastrum ponsonbyi B. Walker, 1924 - (PLANORBIDAE)
- ponsonbyi, Plectopylis ponsonbyi (H.H. Godwin-Austen, 1888) - (PLECTOPYLIDAE)
- ponsonbyi, Linisia ponsonbyi (H.A. Pilsbry, 1896) - (POLYGYRIDAE)
- ponsonbyi, Happia ponsonbyi (H.A. Pilsbry & W.F. Clapp, 1902) - (SCOLODONTIDAE)
- ponsonbyi, Skenea ponsonbyi (P. Dautzenberg & H. Fischer, 1897) - (SKENEIDAE)
- ponsonbyi, Tellina ponsonbyi G.B. III Sowerby, 1889 - (TELLINIDAE)
- ponsonbyi, Monilea ponsonbyi G.B. III Sowerby, 1888 - syn of: Priotrochus obscurus ponsonbyi (G.B. III Sowerby, 1888) - (TROCHIDAE)
- ponsonbyi, Trochus ponsonbyi G.B. III Sowerby, 1888 - syn of: Priotrochus obscurus ponsonbyi (G.B. III Sowerby, 1888) - (TROCHIDAE)
- ponsonbyi, Priotrochus obscurus ponsonbyi (G.B. III Sowerby, 1888) - (TROCHIDAE)
- ponsonbyi, Turbo ponsonbyi G.B. III Sowerby, 1897 - syn of: Bothropoma ponsonbyi (G.B. III Sowerby, 1897) - (TURBINIDAE)
- ponsonbyi, Kyrina ponsonbyi (G.B. III Sowerby, 1892) - (VENERIDAE)
- ponsonbyi, Petricola ponsonbyi G.B. III Sowerby, 1892 - syn of: Kyrina ponsonbyi (G.B. III Sowerby, 1892) - (VENERIDAE)
- ponsonbyi, Festilyria ponsonbyi (E.A. Smith, 1901) - (VOLUTIDAE)
- ponsonbyi, Lyria ponsonbyi E.A. Smith, 1901 - syn of: Festilyria ponsonbyi (E.A. Smith, 1901) - (VOLUTIDAE)
- ponsonbyi, Voluta ponsonbyi E.A. Smith, 1901 - syn of: Festilyria ponsonbyi (E.A. Smith, 1901) - (VOLUTIDAE)
- ponsulensis, Candidula ponsulensis D.T. Holyoak & G.A. Holyoak, 2014 - (HYGROMIIDAE)
- pontana, Anchura pontana L.W. Stephenson † - (APORRHAIDAE) (FOSSIL)
- pontchartrainensis, Mulinia pontchartrainensis J.P.E. Morrison, 1965 - (MACTRIDAE)
- pontebana, Cochlostoma pontebana A. Stossich, 1895 - syn of: Eupomatias henricae P. von Ströbel, 1851 - (COCHLOSTOMATIDAE)
- Ponteixites, Genus Ponteixites Warren , 1934 † (SCAPHITIDAE) (FOSSIL)
- pontelirae, Gara pontelirae (R. Hutterer, 1994) - (CANARIELLIDAE)
- pontesi, Volvarina pontesi E. de C. Rios & J.H. Leal, 1993 - (MARGINELLIDAE)
- ponthiervillensis, Potadoma ponthiervillensis C. Dupuis & S. Putzeys, 1900 - (PACHYCHILIDAE)
- ponti, Ampullaria ponti G.A. Goldfuss, 1844 † - (AMPULLARIIDAE) (FOSSIL)
- ponti, Phyllocheilus ponti (A. Brongniart, 1821 †) - (HARPAGODIDAE) (FOSSIL)
- ponti, Pterocera ponti A. Brongniart, 1821 † - syn of: Phyllocheilus ponti (A. Brongniart, 1821 †) - (STROMBIDAE) (FOSSIL)
- pontia, Sandalia pontia C.N. Cate, 1975 - syn of: Sandalia triticea (J.B.P.A. Lamarck, 1810) - (OVULIDAE)
- pontiamnis, Pecten pontiamnis McLearn, 1942 † - (PECTINIDAE) (FOSSIL)
- pontica, Acteocina pontica A.V. Grossu, 1986 - (ACTEOCINIDAE)
- pontica, Bithynia pontica Gozhik, 2002 † - (BITHYNIIDAE) (FOSSIL)
- pontica, Monodacna pontica K.E.I. von Eichwald, 1838 - syn of: Monodacna caspia (K.E.I. von Eichwald, 1829) - (CARDIIDAE)
- pontica, Nordsieckia pontica Lueger, 1981 † - (CLAUSILIIDAE) (FOSSIL)
- pontica, Euxina pontica O. von Retowski, 1887 - (CLAUSILIIDAE)
- pontica, Doto pontica C.K. Swennen, 1961 - (DOTIDAE)
- pontica, Duvalia pontica Shvetsov, 1913 † - (DUVALIIDAE) (FOSSIL)
- pontica, Helix pontica O. Böttger, 1883 - syn of: Caucasigena abchasica W.A. Lindholm, 1927 - (HELICIDAE)
- pontica, Leiostyla pontica O. von Retowski, 1889 - (LAURIIDAE)
- pontica, Mangelia pontica K.O. Milaschewitsch, 1908 - (MANGELIIDAE)
- pontica, Melanopsis pontica Gozhik, 2007 † - (MELANOPSIDAE) (FOSSIL)
- pontica, Rapana pontica F. Nordsieck, 1969 - syn of: Rapana venosa (A. Valenciennes, 1846) - (MURICIDAE)
- pontica, Midicola pontica Sovinsky, 1884 - syn of: Choromytilus chorus (Molina, 1782) - (MYTILIDAE)
- pontica, Daudebardia pontica H.R. Simroth, 1912 - syn of: Inguria wagneri (O.W. Von Rosen, 1911) - (OXYCHILIDAE)
- pontica, Patella pontica K.O. Milaschewitsch, 1914 - syn of: Patella ulyssiponensis J.F. Gmelin, 1791 - (PATELLIDAE)
- pontica, Patella pontica T.A. de M. Monterosato, 1888 ex A. Valenciennes MS - syn of: Patella ulyssiponensis J.F. Gmelin, 1791 - (PATELLIDAE)
- pontica, Tricolia pontica K.O. Milaschewitsch, 1909 - syn of: Tricolia pullus (C. Linnaeus, 1758) - (PHASIANELLIDAE)
- pontica, Pupilla pontica O. von Retowski, 1889 - syn of: Euxinolauria pulchra (O. von Retowski, 1883) - (PUPILLIDAE)
- pontica, Chrysallida pontica A.V. Grossu, 1986 - (PYRAMIDELLIDAE)
- pontica, Rissoa pontica F. Nordsieck, 1972 - (RISSOIDAE)
- pontica, Rissoa pontica K.O. Milaschewitsch, 1916 - syn of: Rissoa membranacea (J. Adams, 1800) - (RISSOIDAE)
- pontica, Valvata pontica Pana, 1990 † - (VALVATIDAE) (FOSSIL)
- pontica borisi, Euxina pontica borisi (P. Hesse, 1912) - (CLAUSILIIDAE)
- Ponticeras, Genus Ponticeras Matern , 1929 † (PONTICERATIDAE) (FOSSIL)
- PONTICERATIDAE Korn & Klug, 2002 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-AGONIATITIDA [Order]-GEPHUROCERATOIDEA [Superfamily]) (FOSSIL)
- ponticula, Sphenotrigonia ponticula (Skwarko, 1963 †) - (TRIGONIIDA (UNASSIGNED)) (FOSSIL)
- ponticulana, Anomia ponticulana L.W. Stephenson, 1953 † - (ANOMIIDAE) (FOSSIL)
- ponticuli, Holcophylloceras ponticuli (C. Rousseau, 1842 †) - (PHYLLOCERATIDAE) (FOSSIL)
- ponticum, Villania ponticum Pia 1913 † - (PHRICODOCERATIDAE) (FOSSIL)
- ponticus, Buliminus ponticus O. von Retowski, 1887 - syn of: Chondrula caucasica (L. Pfeiffer, 1852) - (ENIDAE)
- ponticus, Pseudosubplanites ponticus (O. von Retowski, 1893 †) - (NEOCOMITIDAE) (FOSSIL)
- ponticus, Pecten ponticus M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1889 - syn of: Flexopecten glaber ponticus (M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1889) - (PECTINIDAE)
- ponticus, Flexopecten glaber ponticus (M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1889) - (PECTINIDAE)
- ponticus, Gyraulus ponticus (Lörenthey, 1893) - (PLANORBIDAE)
- ponticus, Phrixolestes ponticus H.R. Simroth, 1901 - syn of: Trigonochlamys imitatrix O. Böttger, 1881 - (TRIGONOCHLAMYDIDAE)
- pontieuxini, Pseudopaludinella pontieuxini (P. Radoman, 1973) - (HYDROBIIDAE)
- pontieuxini, Ecrobia pontieuxini P. Radoman, 1973 - syn of: Ecrobia maritima (K.O. Milaschewitsch, 1916) - (HYDROBIIDAE)
- pontifex, Eotebenna pontifex Runnegar & Jell, 1976 † - (YOCHELCIONELLIDAE) (FOSSIL)
- pontificalis, Conus pontificalis J.B.P.A. Lamarck, 1810 - syn of: Dyraspis dorreensis (F. Péron, 1807) - (CONIDAE)
- pontificalis, Mitra pontificalis J.B.P.A. Lamarck, 1811 - syn of: Tiarella stictica (J.H.F. Link, 1807) - (MITRIDAE)
- pontificus, Macroceramus pontificus A.A. Gould, 1848 - syn of: Microceramus mexicanus (E.C. Von Martens, 1897) - (UROCOPTIDAE)
- pontifissa, Diodora pontifissa J.H. McLean, 1964 - syn of: Diodora punctifissa J.H. McLean, 1970 - (FISSURELLIDAE)
- pontiforme, Pseudoprobeloceras pontiforme (Termier, 1950 †) - (PONTICERATIDAE) (FOSSIL)
- pontiformis, Manticoceras pontiformis Termier & Termier, 1950 † - syn of: Pseudoprobeloceras pernai (Wedekind, 1918 †) - (GEPHUROCERATIDAE) (FOSSIL)
- pontilevensis, Oceanida pontilevensis (de Morgan, 1915 †) - (EULIMIDAE) (FOSSIL)
- pontileviensis, Chileutomia pontileviensis de Morgan, 1915 † - (EULIMIDAE) (FOSSIL)
- pontileviensis, Hexaplex turonensis pontileviensis R. Tournouer, 1880 - (MURICIDAE)
- pontileviensis, Ferrissia pontileviensis (Morgan, 1920 †) - (PLANORBIDAE) (FOSSIL)
- pontileviensis, Manzonia pontileviensis (Morgan, 1915 †) - (RISSOIDAE) (FOSSIL)
- pontileviensis, Nystia pontileviensis Morgan, 1920 † - (TRUNCATELLIDAE) (FOSSIL)
- pontilis, Cerithiopsis pontilis M. Yokoyama, 1927 † - (CERITHIOPSIDAE) (FOSSIL)
- pontilitoris, Hydrobia pontilitoris W.A. Wenz, 1942 † - (HYDROBIIDAE) (FOSSIL)
- Pontiothauma, Genus Pontiothauma E.A. Smith, 1895 (RAPHITOMIDAE)
- pontis, Limatula pontis C.A. Fleming, 1978 † - (LIMIDAE) (FOSSIL)
- pontis, Neverita pontis (J. Marwick, 1924 †) - (NATICIDAE) (FOSSIL)
- pontis, Paravitrea pontis H.B. Baker, 1931 - (ZONITIDAE)
- pontisquamata, Drepanomenia pontisquamata L. Salvini-Plawén, 2004 - (DREPANOMENIIDAE)
- Pontiturboella, Genus Pontiturboella T.Y. Sitnikova, Y.I. Starobogatov & V.V. Anistratenko, 1992 (RISSOIDAE)
- pontmartiniana, Paladilhia pontmartiniana J.L. Nicolas, 1891 - syn of: Paladilhia pleurotoma J.R. Bourguignat, 1865 - (MOITESSIERIIDAE)
- Pontobelgrandiella, Genus Pontobelgrandiella P. Radoman, 1978 (HYDROBIIDAE)
- pontocaspica, Dreissena rostriformis pontocaspica (N.I. Andrusov, 1897) - (DREISSENIDAE)
- Pontodreissena, syn of: Genus Dreissena P.J. Van Beneden, 1835 (DREISSENIDAE)
- pontogenes, Aorotrema pontogenes (J.S. Schwengel & J.T.L. McGinty, 1942) - (TORNIDAE)
- Pontohedyle, Genus Pontohedyle A.N. Golikov & Y.I. Starobogatov, 1972 (PARHEDYLIDAE)
- Pontohoratia, Genus Pontohoratia Vinarski, Palatov & Glöer, 2014 (HYDROBIIDAE)
- Pontohydrobia, Genus Pontohydrobia Badzoshvili, 1979 † (HYDROBIIDAE) (FOSSIL)
- Pontolimex, syn of: Genus Limapontia G. Johnston, 1836 (LIMAPONTIIDAE)
- pontoni, Inoceramus pontoni McLearn, 1926 † - (INOCERAMIDAE) (FOSSIL)
- pontoni, Turritella pontoni (W.C. Mansfield, 1939 †) - (TURRITELLIDAE) (FOSSIL)
- pontoni, Eichwaldiella pontoni W.C. Mansfield, 1939 † - syn of: Turritella pontoni (W.C. Mansfield, 1939 †) - (TURRITELLIDAE) (FOSSIL)
- pontonia, Jupiteria pontonia (W.H. Dall, 1890) - (NUCULANIDAE)
- pontonis, Alaria pontonis W.H. Hudleston, 1889 † - (APORRHAIDAE) (FOSSIL)
- pontonis, Brachytrema pontonis W.H. Hudleston, 1896 † - (BRACHYTREMATIDAE) (FOSSIL)
- pontonis, Neocryptaulax limaeformis pontonis (W.H. Hudleston, 1889 †) - (CRYPTAULACIDAE) (FOSSIL)
- pontonis spinifera, Alaria pontonis spinifera W.H. Hudleston, 1888 † - (APORRHAIDAE) (FOSSIL)
- Pontophaedusa, Genus Pontophaedusa W.A. Lindholm, 1924 (CLAUSILIIDAE)
- Pontophaedusella, Genus Pontophaedusella H. Nordsieck, 1994 (CLAUSILIIDAE)
- Pontotheba, Genus Pontotheba Neiber & Hausdorf, 2017 (HYGROMIIDAE)
- pontotocensis, Pterocerella pontotocensis N.F. Sohl, 1960 † - (APORRHAIDAE) (FOSSIL)
- Pontoxychilus, syn of: Subgenus Oxychilus (Conulopolita) O. Böttger, 1879 (OXYCHILIDAE)
- pontvillensis, Fluvidona pontvillensis J.E. Tenison-Woods, 1876 - (HYDROBIIDAE)
- pontyi, Mangelia pontyi (P. Dautzenberg, 1910) - (MANGELIIDAE)
- pooki, Lodderena nana pooki C.A. Fleming, 1948 - (SKENEIDAE)
- poolei, Lucidestea poolei (C. Hedley, 1899) - (RISSOIDAE)
- poolvashensis, Luciellina poolvashensis Batten, 1966 † - (GOSSELETINIDAE) (FOSSIL)
- poorei, Neveritis poorei (G.P.L.K. Gude, 1907) - (CAMAENIDAE)
- poormani, Dauciconus poormani (S.S. Berry, 1968) - (CONIDAE)
- poormani, Favartia poormani (G.E. Radwin & D'Attilio, 1976) - (MURICIDAE)
- poormani, Pygmaepterys poormani G.E. Radwin & D'Attilio, 1976 - syn of: Favartia poormani (G.E. Radwin & D'Attilio, 1976) - (MURICIDAE)
- Poortenia, Subgenus Siliqua (Poortenia) M. Huber, 2010 (PHARIDAE)
- popana, Spixia popana (A. Doering, 1877) - (ODONTOSTOMIDAE)
- Popanites, Genus Popanites Greppin, 1870 † (OPPELIIDAE) (FOSSIL)
- Popanoceras, Genus Popanoceras Mojsisovics, 1886 † (PARAPOPANOCERATIDAE) (FOSSIL)
- POPANOCERATIDAE Hyatt, 1900 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-GONIATITIDA [Order]-POPANOCERATOIDEA [Superfamily]) (FOSSIL)
- popanoides, Weyerella popanoides (Ruan, 1981 †) - (GATTENDORFIIDAE) (FOSSIL)
- popanoides, Zadelsdorfia popanoides Ruan, 1995 † - syn of: Weyerella angularia (Liang & Wang, 1991 †) - (GATTENDORFIIDAE) (FOSSIL)
- popayanum, Aperostoma popayanum (H.C. Lea, 1839) - (NEOCYCLOTIDAE)
- popeae, Mitromorpha popeae (M.J. Faber, 2006) - (MITROMORPHIDAE)
- popeii, Popenaias popeii (I. Lea, 1857) - (UNIONIDAE)
- popeii regalis, Popenaias popeii regalis F. Haas, 1929 - syn of: Popenaias popeii (I. Lea, 1857) - (UNIONIDAE)
- popelairianus, Megalobulimus popelairianus (P. Nyst, 1845) - (MEGALOBULIMIDAE)
- popelairianus, Strophocheilus popelairianus P. Nyst, 1849 - syn of: Strophocheilus popelarianus (P. Nyst, 1845) - (STROPHOCHEILIDAE)
- popelarianus, Strophocheilus popelarianus (P. Nyst, 1845) - (STROPHOCHEILIDAE)
- popella, Cernuella popella C. Pollonera, 1892 - syn of: Cernuella neglecta (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- Popenaias, Genus Popenaias L.S. Frierson, 1927 (UNIONIDAE)
- Popenella, Genus Popenella Bandel, 1992 † (POPENELLIDAE) (FOSSIL)
- POPENELLIDAE Bandel, 1992 † - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-CERITHIOIDEA [Superfamily]) (FOSSIL)
- popenoe, Calyptraphorus popenoe J. Gardner, 1935 † - (ROSTELLARIIDAE) (FOSSIL)
- popenoei, Helicaulax popenoei (Elder & Saul, 1996 †) - (APORRHAIDAE) (FOSSIL)
- popenoei, Hemihoplites popenoei C.E. Murphy, 1975 † - (HEMIHOPLITIDAE) (FOSSIL)
- popenoei, Willimactra popenoei Saul, 1973 † - (MACTRIDAE) (FOSSIL)
- popenoei, Bullata popenoei (W.C. Mansfield, 1930 †) - (MARGINELLIDAE) (FOSSIL)
- popenoei, Olcostephanus popenoei Imlay, 1960 † - (OLCOSTEPHANIDAE) (FOSSIL)
- popenoei, Forsia popenoei Saul, 1988 † - (PERISSITYIDAE) (FOSSIL)
- popenoei, Pyktes popenoei S. Kiel & K. Bandel, 1999 † - (PUGNELLIDAE) (FOSSIL)
- Popenoella, Genus Popenoella Cooper & Leanza, 2017 † (STEINMANELLIDAE) (FOSSIL)
- Popenoeum, Genus Popenoeum Squires, Zinsmeister & Paredes-Mejia, 1989 fos (PSEUDOLIVIDAE) (FOSSIL)
- popenoi, Unio popenoi R.E. Call, 1885 - syn of: Cyprogenia aberti (T.A. Conrad, 1850) - (UNIONIDAE)
- poperimensis, Pseudobaylea poperimensis P.A. Maxwell, 1964 † - (GOSSELETINIDAE) (FOSSIL)
- popeyense, Tolvericeras popeyense Énay, Gallois & Etches, 2014 † - (PERISPHINCTIDAE) (FOSSIL)
- poplei, Thordisa poplei M. Edmunds, 2011 - (DISCODORIDIDAE)
- popoagiense, Cyrtogomphoceras popoagiense Foerste, 1935 † - (CYRTOGOMPHOCERATIDAE) (FOSSIL)
- popofensis, Vertipecten popofensis F.S. MacNeil, 1967 † - (PECTINIDAE) (FOSSIL)
- popondetta, Meliobra popondetta W.J. Clench & H. Turner, 1962 - (CAMAENIDAE)
- Poporites, Genus Poporites † (CERATITIDA (UNASSIGNED)) (FOSSIL)
- poposiensis, Nuculopsis poposiensis R.M. Branson, 1930 † - (NUCULIDAE) (FOSSIL)
- popouelensis, Tornatellides popouelensis H.A. Pilsbry & C.M. Cooke, 1915 - (ACHATINELLIDAE)
- popouwelae, Philonesia fallax popouwelae H.B. Baker, 1940 - (EUCONULIDAE)
- popouwelensis, Achatinella mustelina popouwelensis D.A. Welch, 1938 - (ACHATINELLIDAE)
- popouwelensis, Leptachatina popouwelensis H.A. Pilsbry & C.M. Cooke, 1914 - (AMASTRIDAE)
- popovae, Parajuga popovae L.A. Prozorova & Y.I. Starobogatov, 2004 - syn of: Hua starobogatovi F. Zatrawkin & I.M. Moskvicheva, 1986 - (SEMISULCOSPIRIDAE)
- popovae, Pisidium popovae Y.I. Starobogatov & E.A. Streletzkaja, 1967 - (SPHAERIIDAE)
- popovi, Gyronautilus popovi Y. Shigeta & Zakharov, 2009 † - (GRYPOCERATIDAE) (FOSSIL)
- popovi, Plagiostoma popovi Kurushin, 1985 † - (LIMIDAE) (FOSSIL)
- popovi, Nordophiceras popovi Zakharov, 1978 † - (MEEKOCERATIDAE) (FOSSIL)
- popovi, Ussurijuvenites popovi Smyshlyaeva & Zakharov, 2012 † - (MELAGATHICERATIDAE) (FOSSIL)
- popovi, Pseudaspidites popovi Kummel, 1969 † - (PROPTYCHITIDAE) (FOSSIL)
- popovi, Arctomeekoceras popovi Guex & al., 2005 † - (PROPTYCHITIDAE) (FOSSIL)
- popovi, Retroceramus popovi Koschelkina, 1962 † - (RETROCERAMIDAE) (FOSSIL)
- popovia, Propebela popovia (W.H. Dall, 1919) - (MANGELIIDAE)
- popovici, Gyraulus popovici (P.S. Pavlovic, 1927 ) - (PLANORBIDAE)
- popovici complanatus, Gyraulus popovici complanatus Sauerzopf, 1953 - syn of: Gyraulus micromphalus (A. Fuchs, 1870 ) - (PLANORBIDAE)
- Popovicia, Genus Popovicia Neubauer & Harzhauser in Neubauer & al., 2015 † (VIVIPARIDAE) (FOSSIL)
- Popovites, Genus Popovites Tozer, 1965 † (MELAGATHICERATIDAE) (FOSSIL)
- popowi, Costatoaphanaia popowi (Muromtseva & Kusnezov, 1984 †) - (ATOMODESMATIDAE) (FOSSIL)
- popowi, Uraloceras popowi Andrianov, 1985 † - (PARAGASTRIOCERATIDAE) (FOSSIL)
- popowi, Eoshumardites popowi Kutygin, 2016 † - (PARASHUMARDITIDAE) (FOSSIL)
- popowi, Bositra popowi Bytschkov 1976 † - (POSIDONIIDAE) (FOSSIL)
- popowi, Germanonautilus popowi E.S. Sobolev, 1989 † - (TAINOCERATIDAE) (FOSSIL)
- popowi, Indigirophyllites popowi Konstantinov, 1991 † - (USSURITIDAE) (FOSSIL)
- poppeana, Anodonta poppeana G. Servain, 1887 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- poppearum, Clathropsis poppearum A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- poppei, Angaria poppei D. Monsecour & D. Monsecour, 1999 - (ANGARIIDAE)
- poppei, Euthria poppei K. Fraussen, 1999 - (BUCCINIDAE)
- poppei, Calagrassor poppei (K. Fraussen, 2001) - (BUCCINIDAE)
- poppei, Eosipho poppei K. Fraussen, 2001 - syn of: Euthria poppei K. Fraussen, 1999 - (BUCCINIDAE)
- poppei, Calliostoma poppei C. Vilvens, 2000 - (CALLIOSTOMATIDAE)
- poppei, Serriphaedusa poppei Grego & Szekeres, 2017 - (CLAUSILIIDAE)
- poppei, Conus poppei J. Elsen, 1983 - syn of: Africonus crotchii (L.A. Reeve, 1849) - (CONIDAE)
- poppei, Vexillum poppei E.G. Guillot de Suduiraut, 2007 - (COSTELLARIIDAE)
- poppei, Monetaria caputdraconis poppei P. Martin, 1989 - (CYPRAEIDAE)
- poppei, Gibberula poppei T. Cossignani, 2001 - (CYSTISCIDAE)
- poppei, Granulifusus poppei A. Delsaerdt, 1995 - (FASCIOLARIIDAE)
- poppei, Latirus poppei W.G. Lyons & Snyder, 2015 - (FASCIOLARIIDAE)
- poppei, Ischnochiton poppei (P. Kaas & R.A. Van Belle, 1994) - (ISCHNOCHITONIDAE)
- poppei, Haploplax poppei P. Kaas & R.A. Van Belle, 1994 - syn of: Ischnochiton poppei (P. Kaas & R.A. Van Belle, 1994) - (ISCHNOCHITONIDAE)
- poppei, Marginella poppei F. Boyer & J. Neefs, 1999 - (MARGINELLIDAE)
- poppei, Demissa poppei F. Boyer, 2016 - (MARGINELLIDAE)
- poppei, Mitra poppei E.G. Guillot de Suduiraut, 2000 - (MITRIDAE)
- poppei, Mitromorpha poppei M. Chino & P. Stahlschmidt, 2009 - (MITROMORPHIDAE)
- poppei, Flexopteron poppei (R. Houart, 1993) - (MURICIDAE)
- poppei, Paziella poppei R. Houart, 1993 - syn of: Flexopteron poppei (R. Houart, 1993) - (MURICIDAE)
- poppei, Murex poppei R. Houart, 1979 - syn of: Murex djarianensis R. Houart, 1979 - (MURICIDAE)
- poppei, Olivella poppei L. Bozzetti, 1998 - (OLIVELLIDAE)
- poppei, Recourtoliva poppei (D.M. Sargent & E.J. Petuch, 2008) - (OLIVIDAE)
- poppei, Lopha poppei L. Bozzetti, 1996 - syn of: Nicaisolopha tridacnaeformis (Cox, 1927) - (OSTREIDAE)
- poppei, Phenacovolva poppei D. Fehse, 2000 - (OVULIDAE)
- poppei, Bayerotrochus poppei P. Anseeuw, 2003 - (PLEUROTOMARIIDAE)
- poppei, Egila poppei (W.H. Dall & P. Bartsch, 1909) - (PYRAMIDELLIDAE)
- poppei, Tritonoturris poppei J.L. Vera-Peláez & R. Vega-Luz, 1999 - (RAPHITOMIDAE)
- poppei, Moelleriopsis poppei W. Engl, 2012 - (SEGUENZIOIDEA (UNASSIGNED))
- poppei, Solen poppei N.N. Thach, 2015 - (SOLENIDAE)
- poppei, Tegula poppei T.C. Lan, 1991 - syn of: Odontotrochus poppei (T.C. Lan, 1991) - (TEGULIDAE)
- poppei, Clathroterebra poppei (Y. Terryn, 2003) - (TEREBRIDAE)
- poppei, Tonna poppei C.G. Vos, 2005 - (TONNIDAE)
- poppei, Trivirostra poppei D. Fehse, 1999 - (TRIVIIDAE)
- poppei, Odontotrochus poppei (T.C. Lan, 1991) - (TROCHIDAE)
- poppei, Jujubinus poppei M. Curini-Galletti, 1985 - (TROCHIDAE)
- poppei, Cantharidus poppei T.C. Lan, 1991 - syn of: Odontotrochus poppei (T.C. Lan, 1991) - (TROCHIDAE)
- poppei, Turridrupa poppei P. Stahlschmidt & K. Fraussen, 2011 - (TURRIDAE)
- poppei, Lyria poppei (P. Bail, 2002) - (VOLUTIDAE)
- poppei, Plicolyria poppei P. Bail, 2002 - syn of: Lyria poppei (P. Bail, 2002) - (VOLUTIDAE)
- poppelacki, Ranella poppelacki Hornes, 1853 † - (RANELLIDAE) (FOSSIL)
- poppeorum, Emarginula poppeorum Romani & Crocetta, 2017 - (FISSURELLIDAE)
- poppeorum, Reticunassa poppeorum Galindo, Kool & Dekker, 2017 - (NASSARIIDAE)
- popperimensis, Pseudobaylea popperimensis Dickins 1963 † - (GOSSELETINIDAE) (FOSSIL)
- popula, Heliacus popula T. Iredale, 1936 - syn of: Heliacus implexus (J.W. Mighels, 1845) - (ARCHITECTONICIDAE)
- popularis, Corbicula popularis P.M. Pallary, 1909 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- poraria, Erosaria poraria (C. Linnaeus, 1758) - (CYPRAEIDAE)
- poraria kauaiensis, Erosaria poraria kauaiensis J.C. Melvill, 1888 - (CYPRAEIDAE)
- poraria scarabeus, Erosaria poraria scarabeus (J.B.G.M. Bory De Saint-Vincent, 1827) - (CYPRAEIDAE)
- porata, Amnicola porata A.A. Gould, 1841 - syn of: Lyogyrus limosus (T. Say, 1817) - (AMNICOLIDAE)
- poratica, Neumayria podwinensis poratica (Gozhik in Gozhik & Datsenko, 2007 †) - (BITHYNIIDAE) (FOSSIL)
- poratus, Viviparus poratus A.M. Popov, 1968 † - (VIVIPARIDAE) (FOSSIL)
- Porcaconus, Genus Porcaconus Qian & Xiao, 1984 † (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- porcana, Polinices porcana E.M. Spieker, 1922 † - (NATICIDAE) (FOSSIL)
- porcarellense, Hammatoceras porcarellense Bonarelli 1899 † - (HAMMATOCERATIDAE) (FOSSIL)
- porcata, Burnupena porcata J.F. Gmelin, 1791 - syn of: Burnupena cincta (P.F. Röding, 1798) - (BUCCINIDAE)
- porcata, Cominella porcata J.F. Gmelin, 1791 - syn of: Burnupena cincta (P.F. Röding, 1798) - (BUCCINIDAE)
- porcata, Westraltrachia porcata G.A. Solem, 1984 - (CAMAENIDAE)
- porcata, Chromodoris porcata L.S.R. Bergh, 1889 - (CHROMODORIDIDAE)
- porcata, Antalis porcata (A.A. Gould, 1859) - (DENTALIIDAE)
- porcata, Echinolittorina porcata (R.A. Philippi, 1846) - (LITTORINIDAE)
- porcata, Nodilittorina porcata R.A. Philippi, 1846 - syn of: Echinolittorina porcata (R.A. Philippi, 1846) - (LITTORINIDAE)
- porcata, Myrtina porcata E.A. Glover & Taylor, 2007 - (LUCINIDAE)
- porcata, Nebularia porcata L.A. Reeve, 1844 - syn of: Nebularia proscissa L.A. Reeve, 1844 - (MITRIDAE)
- porcata, Neritina porcata A.A. Gould, 1848 - (NERITIDAE)
- porcata, Austrocochlea porcata (A. Adams, 1853) - (TROCHIDAE)
- porcata, Venus porcata P.F. Röding, 1798 - syn of: Marcia japonica (J.F. Gmelin, 1791) - (VENERIDAE)
- porcata multilirata, Cominella porcata multilirata P. Bartsch, 1915 - syn of: Burnupena cincta limbosa (J.B.P.A. Lamarck, 1822) - (BUCCINIDAE)
- porcatum, Buccinum porcatum P.F. Röding, 1798 - syn of: Tritia reticulata (C. Linnaeus, 1758) - (BUCCINIDAE)
- porcatus, Fossarus porcatus (R.A. Philippi, 1845) - (PLANAXIDAE)
- porcatus, Turbo porcatus L.A. Reeve, 1848 - syn of: Lunella cinerea (I. von Born, 1778) - (TURBINIDAE)
- porcatus, Turbo porcatus L.A. Reeve, 1848 - syn of: Lunella cinerea (I. von Born, 1778) - (TURBINIDAE)
- porcea, Oliva porcea F.P. Marrat, 1870 - syn of: Oliva tisiphona P.L. Duclos, 1844 - (OLIVIDAE)
- porcelaine, Marginella porcelaine P. Dautzenberg, 1910 - syn of: Marginella glabella (C. Linnaeus, 1758) - (MARGINELLIDAE)
- porcella, Caryocorbula porcella W.H. Dall, 1916 - (CORBULIDAE)
- porcellana, Partulina porcellana W. Newcomb, 1854 - (ACHATINELLIDAE)
- porcellana, Auriculella expansa porcellana C.M.F. Ancey, 1889 - (ACHATINELLIDAE)
- porcellana, Awanuia porcellana W.F. Ponder, 1967 - (ACLIDIDAE)
- porcellana, Anatoma porcellana D.L. Geiger, 2012 - (ANATOMIDAE)
- porcellana, Margarella porcellana A.W.B. Powell, 1951 - (CALLIOSTOMATIDAE)
- porcellana, Crepidula porcellana J.B.P.A. Lamarck, 1801 - (CALYPTRAEIDAE)
- porcellana, Cepolis porcellana (J.P.S. Grateloup, 1840) - (CEPOLIDAE)
- porcellana, Skenella porcellana (W.F. Ponder & E.K. Yoo, 1980) - (CINGULOPSIDAE)
- Porcellana, syn of: Genus Arestorides T. Iredale, 1930 (CYPRAEIDAE)
- porcellana, Persicula porcellana (J.F. Gmelin, 1791) - (CYSTISCIDAE)
- porcellana, Cerodrillia porcellana P.J. Fallon, 2016 - (DRILLIIDAE)
- porcellana, Eulima porcellana A. Adams, 1851 - syn of: Melanella alba (E.M. Da Costa, 1778) - (EULIMIDAE)
- porcellana, Liloa porcellana (A.A. Gould, 1859) - (HAMINOEIDAE)
- porcellana, Cyclostrema porcellana R. Tate & W.L. May, 1900 - syn of: Putilla porcellana (R. Tate & W.L. May, 1900) - (LIOTIIDAE)
- porcellana, Margarites porcellana A.W.B. Powell, 1951 - (MARGARITIDAE)
- porcellana, Volvarina porcellana (J.C. Melvill & R. Standen, 1912) - (MARGINELLIDAE)
- porcellana, Marginella porcellana J.F. Gmelin, 1791 - syn of: Persicula porcellana (J.F. Gmelin, 1791) - (MARGINELLIDAE)
- Porcellana, syn of: Genus Marginella J.B.P.A. Lamarck, 1799 (MARGINELLIDAE)
- porcellana, Mitra porcellana J.C. Melvill & R. Standen, 1912 - syn of: Volvarina porcellana (J.C. Melvill & R. Standen, 1912) - (MITRIDAE)
- porcellana, Septaria porcellana (C. Linnaeus, 1758) - (NERITIDAE)
- porcellana, Navicella porcellana C. Linnaeus, 1758 - syn of: Septaria porcellana (C. Linnaeus, 1758) - (NERITIDAE)
- porcellana, Pleurotomella porcellana (R.B. Watson, 1886) - (RAPHITOMIDAE)
- porcellana, Powellisetia porcellana (H.H. Suter, 1908) - (RISSOIDAE)
- porcellana, Putilla porcellana (R. Tate & W.L. May, 1900) - (SEGUENZIOIDEA (UNASSIGNED))
- porcellana, Wanganella porcellana R. Tate & W.L. May, 1900 - syn of: Putilla porcellana (R. Tate & W.L. May, 1900) - (SEGUENZIOIDEA (unassigned))
- porcellana, Voluta porcellana G. Perry, 1811 - syn of: Cryptospira strigata (L.W. Dillwyn, 1817) - (VOLUTIDAE)
- porcellana, Ericusa sowerbyi porcellana B.D. Jackson, 1954 - (VOLUTIDAE)
- porcellana, Volutomitra porcellana J.C. Melvill & R. Standen, 1912 - syn of: Volvarina porcellana (J.C. Melvill & R. Standen, 1912) - (VOLUTOMITRIDAE)
- porcellana cumingiana, Septaria porcellana cumingiana C.A. Récluz, 1843 - (NERITIDAE)
- porcellana flemingi, Partulina porcellana flemingi D.D. Baldwin, 1906 - (ACHATINELLIDAE)
- porcellana fulvicans, Partulina porcellana fulvicans D.D. Baldwin, 1906 - (ACHATINELLIDAE)
- porcellana obesa, Persicula porcellana obesa (J.H. Redfield, 1846) - syn of: Persicula obesa (J.H. Redfield, 1846) - (CYSTISCIDAE)
- porcellana sulin, Crepidula porcellana sulin (P. Dautzenberg, 1912) - (CALYPTRAEIDAE)
- porcellana wailuaensis, Partulina porcellana wailuaensis E.R. Sykes, 1900 - (ACHATINELLIDAE)
- porcellanea, Medora agnata porcellanea (C.A. Westerlund, 1898) - (CLAUSILIIDAE)
- porcellanea, Corbicula porcellanea P.M. Heude, 1887 - syn of: Corbicula fluminea (O.F. Müller, 1774) - (CYRENIDAE)
- porcellanea, Leiocithara porcellanea R.N. Kilburn, 1992 - (MANGELIIDAE)
- Porcellanella, syn of: Genus Prunum Herrmannsen, 1852 (MARGINELLIDAE)
- porcellaneus, Gyraulus porcellaneus (Lörenthey, 1902) - (PLANORBIDAE)
- porcellanica, Naninia porcellanica (A.E.J. Férussac, 1821) - (ARIOPHANTIDAE)
- porcellanica, Tylomelania porcellanica (P.B. Sarasin & K.F. Sarasin, 1897) - (PACHYCHILIDAE)
- porcellanica butonensis, Naninia porcellanica butonensis (P.B. Sarasin & K.F. Sarasin, 1899) - (ARIOPHANTIDAE)
- Porcellanites, syn of: Genus Palaeocypraea Schilder, 1928 † (CYPRAEIDAE) (FOSSIL)
- porcellanoides, Powellisetia porcellanoides (A.W.B. Powell, 1937) - (RISSOIDAE)
- porcellanum, Bittium porcellanum R.B. Watson, 1886 - (CERITHIIDAE)
- porcellanus, Amphidromus porcellanus (A. Mousson, 1848) - (CAMAENIDAE)
- porcellanus, Conorbis porcellanus (T.A. Conrad, 1848 †) - (CONORBIDAE) (FOSSIL)
- porcellanus, Polinices porcellanus A.V.M.D. D'Orbigny, 1839 - syn of: Polinices lacteus L. Guilding, 1834 - (NATICIDAE)
- porcellanus, Hippopus porcellanus J.P. Rosewater, 1982 - (TRIDACNIDAE)
- porcellarum, Dolium porcellarum F.M. Euthyme, 1885 - syn of: Tonna luteostoma (H.C. Küster, 1857) - (TONNIDAE)
- porcellata, Solatopupa porcellata C.A. Westerlund, 1890 - syn of: Solatopupa similis (J.G. Bruguière, 1792) - (CHONDRINIDAE)
- Porcellia, Genus Porcellia Léveillé, 1835 † (PORCELLIIDAE) (FOSSIL)
- PORCELLIIDAE Koken, 1895 † - Family (GASTROPODA-VETIGASTROPODA [Subclass]-PORCELLIOIDEA [Superfamily]) (FOSSIL)
- porcellio, Triviella porcellio C.N. Cate, 1979 - syn of: Triviella aperta (W.J. Swainson, 1822) - (TRIVIIDAE)
- porcellus, Conus porcellus Pilsbry & Johnson, 1917 † - (CONIDAE) (FOSSIL)
- porcellus, Zonaria porcellus (G.B. Brocchi, 1814 †) - (CYPRAEIDAE) (FOSSIL)
- porchi, Trachyscaphites spiniger porchi Cobban & P.H. Scott, 1964 † - (SCAPHITIDAE) (FOSSIL)
- porcifer, Anodon porcifer J.E. Gray, 1834 - syn of: Anodontites patagonica J.B.P.A. Lamarck, 1819 - (UNIONIDAE)
- porcina, Bassethullia porcina (E.A. Ashby, 1919) - (ACANTHOCHITONIDAE)
- porcina, Strophiops porcina C.J. Maynard & W.F. Clapp, 1921 - (CERIONIDAE)
- porcina, Corbula porcina J.B.P.A. Lamarck, 1818 - syn of: Erodona mactroides F.M. Daudin, 1802 - (CORBULIDAE)
- porcina, Erodona porcina J.B.P.A. Lamarck, 1818 - syn of: Erodona mactroides F.M. Daudin, 1802 - (ERODONIDAE)
- porcinum, Paranassa porcinum (T. Say, 1824 †) - (NASSARIIDAE) (FOSSIL)
- porcinum, Cymbium porcinum J.B.P.A. Lamarck, 1811 - syn of: Cymbium cymbium (C. Linnaeus, 1758) - (VOLUTIDAE)
- porculus, Kellia porculus H.A. Pilsbry, 1904 - (KELLIIDAE)
- Porcupina, syn of: Genus Cirsonella G.F. Angas, 1877 (SKENEIDAE)
- porcupinae, Alvania porcupinae S. Gofas & A. Warén, 1982 - (RISSOIDAE)
- Porcupinia, syn of: Genus Cirsonella G.F. Angas, 1877 (SKENEIDAE)
- porcus, Amastra porcus A. Hyatt & H.A. Pilsbry, 1911 - (AMASTRIDAE)
- Poremskiconus, Genus Poremskiconus E.J. Petuch, 2013 (CONIDAE)
- poremskii, Conasprella poremskii (E.J. Petuch & B.W. Myers, 2014) - (CONIDAE)
- poremskii, Jaspidiconus poremskii E.J. Petuch & B.W. Myers, 2014 - syn of: Conasprella poremskii (E.J. Petuch & B.W. Myers, 2014) - (CONIDAE)
- porfirievae, Gerstfeldtiancylus porfirievae Y.I. Starobogatov, 1989 - (ACROLOXIDAE)
- porifera, Mopalia porifera H.A. Pilsbry, 1893 - (MOPALIIDAE)
- porifera, Ctenopelta porifera A. Warén & P. Bouchet, 1993 - (PELTOSPIRIDAE)
- porifera, Rissoa porifera S.L. Lovén, 1846 - syn of: Rissoa lilacina C.A. Récluz, 1843 - (RISSOIDAE)
- poritophages, Cuthona poritophages W.B. Rudman, 1979 - (FIONIDAE)
- porkunense, Dawsonoceras porkunense I. Balashov & P.A. Zhuravleva, 1962 † - syn of: Dawsonoceras fenestratum (K.E.I. von Eichwald, 1860 †) - (DAWSONOCERATIDAE) (FOSSIL)
- Porkunioceras, Genus Porkunioceras Kröger , 2007 † (GRACILOCERATIDAE) (FOSSIL)
- Pornosis, Subgenus Ornopsis (Pornosis) Wade, 1916 † (FASCIOLARIIDAE) (FOSSIL)
- porobranchiata, Draculamya porobranchiata P.G. Oliver & C.F. Lützen, 2011 - (MONTACUTIDAE)
- Porocallia, Genus Porocallia O.F. von Möllendorff, 1893 (PUPINIDAE)
- poroleda, Spissatella poroleda Finlay, 1926 † - (CRASSATELLIDAE) (FOSSIL)
- Poroleda, Genus Poroleda F.W. Hutton, 1893 (NUCULANIDAE)
- Poromia, syn of: Genus Poromya E. Forbes, 1844 (POROMYIDAE)
- poromphala, Discula polymorpha poromphala R.T. Lowe, 1852 - (HYGROMIIDAE)
- poromus, Strobeus poromus B.S. Kues, 1990 † - (SOLENISCIDAE) (FOSSIL)
- Poromya, Genus Poromya E. Forbes, 1844 (POROMYIDAE)
- POROMYIDAE Dall, 1886 - Family (BIVALVIA-HETERODONTA [Subclass]-EUHETERODONTA [Infraclass]-ANOMALODESMATA [Order]-POROMYOIDEA [Superfamily])
- poronaica, Neilonella poronaica J. Yokoyama, 1891 - (NEILONELLIDAE)
- Poronia, syn of: Genus Lasaea T. Brown, 1827 (LASAEIDAE)
- Poropteron, Subgenus Pteropurpura (Poropteron) F.P. Jousseaume, 1880 (MURICIDAE)
- pororus, Callistochiton pororus H.F. Nierstrasz, 1905 - syn of: Callistochiton porosus H.F. Nierstrasz, 1905 - (CALLISTOPLACIDAE)
- porosa, Chama porosa S. Clessin, 1889 - syn of: Chama limbula J.B.P.A. Lamarck, 1819 - (CHAMIDAE)
- porosa, Heathia porosa (H. Heath, 1911) - (DONDERSIIDAE)
- porosa, Cheilea porosa L.A. Reeve, 1858 - syn of: Cheilea equestris (C. Linnaeus, 1758) - (HIPPONICIDAE)
- porosa, Berthella porosa H.M.D. de Blainville, 1825 - syn of: Berthella plumula (G. Montagu, 1803) - (PLEUROBRANCHIDAE)
- Porosalvania, Genus Porosalvania S. Gofas, 2007 (RISSOIDAE)
- Porosichlamys, syn of: Genus Chlamys P.F. Röding, 1798 (PECTINIDAE)
- porosus, Cryptoconchus porosus (E.J. Burrow, 1815 ex Blainville MS) - (ACANTHOCHITONIDAE)
- porosus, Acanthochites porosus H.H. Suter, 1913 - syn of: Cryptoconchus porosus (E.J. Burrow, 1815 ex Blainville MS) - (ACANTHOCHITONIDAE)
- porosus, Callistochiton porosus H.F. Nierstrasz, 1905 - (CALLISTOPLACIDAE)
- porosus, Chiton porosus E.J. Burrow, 1815 - syn of: Cryptoconchus porosus (E.J. Burrow, 1815 ex Blainville MS) - (CHITONIDAE)
- porosus, Lepidopleurus porosus E.H.J. Leloup, 1981 - syn of: Nierstraszella andamanica (E.A. Smith, 1906) - (LEPTOCHITONIDAE)
- porosus, Vermetus porosus F.M. Daudin, 1800 - (VERMETIDAE)
- porphyracea, Oliva porphyracea G. Perry, 1811 - syn of: Miniaceoliva miniacea (P.F. Röding, 1798) - (OLIVIDAE)
- porphyrea, Achatinella porphyrea W. Newcomb - syn of: Amastra porphyrea (W. Newcomb, 1853) - (ACHATINELLIDAE)
- porphyrea, Amastra porphyrea (W. Newcomb, 1853) - (AMASTRIDAE)
- porphyrea, Euphaedusa porphyrea (O.F. von Möllendorff, 1882) - (CLAUSILIIDAE)
- porphyrea, Ostrea porphyrea J.F. Gmelin, 1791 - syn of: Mimachlamys sanguinea (C. Linnaeus, 1758) - (OSTREIDAE)
- porphyrea, Mimachlamys sanguinea porphyrea (C. Linnaeus, 1758) - (PECTINIDAE)
- porphyrea theristica, Euphaedusa porphyrea theristica (J.F. Mabille, 1887) - (CLAUSILIIDAE)
- porphyretica, Vexillum porphyretica L.A. Reeve, 1844 - syn of: Pusia cavea (L.A. Reeve, 1844) - (COSTELLARIIDAE)
- porphyreus, Thaumastus porphyreus L. Pfeiffer, 1846 - syn of: Scholvienia porphyrius (L. Pfeiffer, 1847) - (MEGASPIRIDAE)
- porphyreus, Liguus vittatus porphyreus M.L. Jaume, 1952 - (ORTHALICIDAE)
- porphyreus, Pecten porphyreus J.H. Chemnitz, 1784 - (PECTINIDAE)
- porphyreus, Unio porphyreus I. Lea, 1861 - syn of: Villosa umbrans (I. Lea, 1857) - (UNIONIDAE)
- porphyria, Ryssota porphyria L. Pfeiffer - (CHRONIDAE)
- porphyria, Imbricaria porphyria J.C. Verco, 1896 - syn of: Peculator porphyria (J.C. Verco, 1896) - (MITRIDAE)
- porphyria, Oliva porphyria (C. Linnaeus, 1758) - (OLIVIDAE)
- Porphyria, syn of: Genus Oliva J.G. Bruguière, 1789 (OLIVIDAE)
- porphyria, Lunatica porphyria P.F. Röding, 1798 - syn of: Turbo petholatus C. Linnaeus, 1758 - (TURBINIDAE)
- porphyria, Peculator porphyria (J.C. Verco, 1896) - (VOLUTOMITRIDAE)
- porphyria erythrostoma, Oliva porphyria erythrostoma (F.C. Meuschen, 1787) - (OLIVIDAE)
- porphyrites, Turbo porphyrites J.F. Gmelin, 1791 - syn of: Lunella cinerea (I. von Born, 1778) - (TURBINIDAE)
- porphyrites, Turbo porphyrites J.F. Gmelin, 1791 - syn of: Lunella cinerea (I. von Born, 1778) - (TURBINIDAE)
- porphyritica, Oliva porphyritica F.P. Marrat, 1870 - syn of: Miniaceoliva miniacea (P.F. Röding, 1798) - (OLIVIDAE)
- porphyrius, Scholvienia porphyrius (L. Pfeiffer, 1847) - (MEGASPIRIDAE)
- Porphyrobaphe, Genus Porphyrobaphe R.J. Shuttleworth, 1856 (ORTHALICIDAE)
- porphyrochila, Leucocharis porphyrochila (P. Dautzenberg & J. Bernier, 1901) - (BOTHRIEMBRYONTIDAE)
- porphyroidea, Ficus porphyroidea R.A. Philippi, 1887 - syn of: Xanthochorus cassidiformis (H.M.D. de Blainville, 1832) - (FICIDAE)
- porphyroleuca, Coralliophila monodonta porphyroleuca (J.C.H. Crosse, 1870) - (MURICIDAE)
- porphyrosoma, Mirinaba porphyrosoma (W.J. Clench & S. Archer, 1930) - (STROPHOCHEILIDAE)
- porphyrostoma, Archachatina porphyrostoma H.A. Pilsbry, 1905 - (ACHATINIDAE)
- porphyrostoma, Amastra porphyrostoma W.H. Pease, 1869 - (AMASTRIDAE)
- porphyrostoma, Afer porphyrostoma (L.A. Reeve, 1847) - (BUCCINIDAE)
- porphyrostoma, Selenophaedusa porphyrostoma (A.R.J.B. Bavay & P. Dautzenberg, 1909) - (CLAUSILIIDAE)
- porphyrostoma, Albinaria porphyrostoma A.J. Wagner, 1924 - syn of: Cretica cretensis (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- porphyrostoma, Trigonephrus porphyrostoma (J.C. Melvill & J.H. Ponsonby, 1891) - (DORCASIIDAE)
- porphyrostoma, Morula porphyrostoma (L.A. Reeve, 1846) - (MURICIDAE)
- porphyrostoma, Habromorula porphyrostoma (L.A. Reeve, 1846) - syn of: Morula porphyrostoma (L.A. Reeve, 1846) - (MURICIDAE)
- porphyrostoma, Mirinaba porphyrostoma (W.J. Clench & S. Archer, 1930) - (STROPHOCHEILIDAE)
- porphyrostoma, Streptosiphon porphyrostoma A. Adams & L.A. Reeve, 1847 - syn of: Afer porphyrostoma (L.A. Reeve, 1847) - (TURBINELLIDAE)
- porphyrostoma, Tudicula porphyrostoma A. Adams & L.A. Reeve, 1847 - syn of: Afer porphyrostoma (L.A. Reeve, 1847) - (TURBINELLIDAE)
- porphyrostoma regina, Selenophaedusa porphyrostoma regina H. Nordsieck, 2011 - (CLAUSILIIDAE)
- porphyrostomus, Placostylus porphyrostomus (L. Pfeiffer, 1851) - (BOTHRIEMBRYONTIDAE)
- porphyrostomus abbreviata, Placostylus porphyrostomus abbreviata (J. Gassies, 1871) - (BOTHRIEMBRYONTIDAE)
- porphyrostomus debeauxi, Placostylus porphyrostomus debeauxi (J. Gassies, 1871) - (BOTHRIEMBRYONTIDAE)
- porphyrostomus elata, Placostylus porphyrostomus elata P. Dautzenberg, 1923 - syn of: Placostylus porphyrostomus (L. Pfeiffer, 1851) - (BOTHRIEMBRYONTIDAE)
- porphyrostomus monackensis, Placostylus porphyrostomus monackensis (J.C.H. Crosse, 1887) - (BOTHRIEMBRYONTIDAE)
- porphyrostomus singularis, Placostylus porphyrostomus singularis (P.M.A. Morelet, 1857) - (BOTHRIEMBRYONTIDAE)
- porphyrostomus smithii, Placostylus porphyrostomus smithii W. Kobelt, 1891 - (BOTHRIEMBRYONTIDAE)
- Porpoceras, Genus Porpoceras Simpson, 1843 † (DACTYLIOCERATIDAE) (FOSSIL)
- porracea, Dolichostyla virgata porracea (W.J. Broderip, 1841) - (BRADYBAENIDAE)
- porrecta, Pisinna insulana porrecta (A.W.B. Powell, 1933) - (ANABATHRIDAE)
- porrecta, Trachynerita porrecta F. Haas, 1953 † - (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- porrecta, Cristataria porrecta (E.A. Rossmässler, 1857) - (CLAUSILIIDAE)
- porrecta, Albinaria scopulosa porrecta B. Hausdorf, 1987 - (CLAUSILIIDAE)
- porrecta, Tryonia porrecta (J.W. Mighels, 1845) - (COCHLIOPIDAE)
- porrecta, Omphaloptycha porrecta Böhm, 1895 † - syn of: Spirostylus porrectus Böhm, 1895 † - (COELOSTYLINIDAE) (FOSSIL)
- porrecta, Condylocardia porrecta C. Hedley, 1906 - syn of: Cunanax subradiata (R. Tate, 1889) - (CONDYLOCARDIIDAE)
- porrecta, Diaphera porrecta (E.C. Von Martens, 1884) - (DIAPHERIDAE)
- porrecta, Gomphoceras porrecta Barrande, 1865 † - syn of: Ovocerina myrmidio (Barrande, 1865 †) - (DIESTOCERATIDAE) (FOSSIL)
- porrecta, Paludestrina porrecta J.W. Mighels, 1845 - syn of: Paludina porrecta (J.W. Mighels, 1845) - (HYDROBIIDAE)
- porrecta, Pygmaeoconus porrecta (J. Perner, 1903 †) - (HYPSELOCONIDAE) (FOSSIL)
- porrecta, Lacuna porrecta P.P. Carpenter, 1864 - (LITTORINIDAE)
- porrecta, Lutraria porrecta H.J. Finlay, 1930 - syn of: Lutraria impar L.A. Reeve, 1854 - (MACTRIDAE)
- porrecta, Ovocerina porrecta (Barrande, 1865 †) - (MANDALOCERATIDAE) (FOSSIL)
- porrecta, Paphies porrecta J. Marwick, 1928 - syn of: Paphies subtriangulata (W. Wood, 1828) - (MESODESMATIDAE)
- porrecta, Palaeacmaea porrecta J. Perner, 1903 † - syn of: Pygmaeoconus porrecta (J. Perner, 1903 †) - (PALAEACMAEIDAE) (FOSSIL)
- porrecta, Elimia porrecta I. Lea, 1863 - (PLEUROCERIDAE)
- porrecta, Eulimella porrecta A. Peñas & E. Rolán, 2016 - (PYRAMIDELLIDAE)
- porrecta, Turbonilla porrecta (C.F. Laseron, 1959) - (PYRAMIDELLIDAE)
- porrecta, Mayaxis porrecta (E.C. Von Martens, 1898) - (SPIRAXIDAE)
- porrecta, Tellina porrecta R. Tate, 1887 † - (TELLINIDAE) (FOSSIL)
- porrecta, Iniforis porrecta C.F. Laseron, 1958 - (TRIPHORIDAE)
- porrecta, Pleurotoma porrecta Wood, 1842 † - (TURRIDAE) (FOSSIL)
- porrecta, Vermicularia porrecta G.P. Deshayes, 1861 † - (TURRITELLIDAE) (FOSSIL)
- porrecta, Tetrentodon porrecta C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- porrecta, Valvata cobalcescui porrecta (Gozhik in Gozhik & Datsenko, 2007 †) - (VALVATIDAE) (FOSSIL)
- porrecta, Pitar porrecta A. von Koenen, 1894 † - (VENERIDAE) (FOSSIL)
- porrecta, Vertigo porrecta P.M. Pallary, 1939 - syn of: Vertigo angustior J.G. Jeffreys, 1830 - (VERTIGINIDAE)
- porrecta, Paludina porrecta (J.W. Mighels, 1845) - (VIVIPARIDAE)
- porrecta dupouxi, Cristataria porrecta dupouxi (G. Nägele, 1890) - (CLAUSILIIDAE)
- porrecta multicostata, Cristataria porrecta multicostata (G. Nägele, 1897) - (CLAUSILIIDAE)
- porrectoides, Pisinna insulana porrectoides (A.W.B. Powell, 1937) - (ANABATHRIDAE)
- porrectum, Toxoceras porrectum Trautschold, 1886 † - syn of: Jaubertites porrectus (Trautschold, 1886 †) - (ANCYLOCERATIDAE) (FOSSIL)
- porrectum, Bittium porrectum F. Haas, 1953 † - (CERITHIIDAE) (FOSSIL)
- porrectum, Tympanoceras porrectum Ruzhentsev & Bogoslovskaya, 1971 † - (CRAVENOCERATIDAE) (FOSSIL)
- porrectum, Gomphoceras porrectum Barrande, 1865 † - syn of: Ovocerina porrecta (Barrande, 1865 †) - (DIESTOCERATIDAE) (FOSSIL)
- porrectum, Epitonium porrectum (R.B. Hinds, 1843) - (EPITONIIDAE)
- porrectus, Jaubertites porrectus (Trautschold, 1886 †) - (ANCYLOCERATIDAE) (FOSSIL)
- porrectus, Mesembrinus castus porrectus E.C. Von Martens, 1893 - (BULIMULIDAE)
- porrectus, Pupinidius porrectus O.F. von Möllendorff, 1901 - (ENIDAE)
- porrectus, Fusus porrectus (D.C. Solander, 1766 †) - (FASCIOLARIIDAE) (FOSSIL)
- porrectus, Helicarion porrectus T. Iredale, 1941 - (HELICARIONIDAE)
- porrectus, Inoceramus porrectus Voronetz, 1937 † - (INOCERAMIDAE) (FOSSIL)
- porrectus, Fusiguraleus porrectus (A.W.B. Powell, 1942 †) - (MANGELIIDAE) (FOSSIL)
- porrectus, Murex porrectus É.A.A. Locard, 1886 - syn of: Muricopsis cristatus (G.B. Brocchi, 1814) - (MURICIDAE)
- porrectus, Spirostylus porrectus Böhm, 1895 † - (SPIROSTYLIDAE) (FOSSIL)
- porrectus, Haploptychius porrectus (L. Pfeiffer, 1852) - (STREPTAXIDAE)
- porrectus, Vermetus porrectus G.P. Deshayes, 1861 † - syn of: Vermicularia porrecta G.P. Deshayes, 1861 † - (VERMETIDAE) (FOSSIL)
- porri, Discodoris porri J.B. Vérany, 1846 - syn of: Paradoris indecora (L.S.R. Bergh, 1881) - (DISCODORIDIDAE)
- porri, Doris porri J.B. Vérany, 1846 - (DORIDIDAE)
- porrieri, Hemicycla porrieri J.F. Mabille, 1882 - syn of: Hemicycla bidentalis (J.B.P.A. Lamarck, 1811) - (HELICIDAE)
- porrigata, Opimilda porrigata C.F. Laseron, 1951 - (MATHILDIDAE)
- porroi, Dalfreddia porroi (P. von Ströbel, 1850) - (COCHLOSTOMATIDAE)
- porroi, Theodoxus porroi G. Stabile, 1859 - syn of: Theodoxus fluviatilis (C. Linnaeus, 1758) - (NERITIDAE)
- porroi, Oxychilus porroi M. Paulucci, 1882 - syn of: Oxychilus draparnaudi (H.H. Beck, 1837) - (OXYCHILIDAE)
- porroi gredleri, Dalfreddia porroi gredleri C.A. Westerlund, 1879 - (COCHLOSTOMATIDAE)
- porroi stabilei, Dalfreddia porroi stabilei (N. Pini, 1884) - (COCHLOSTOMATIDAE)
- Porsugenia, Genus Porsugenia Grimm, 1998 † (BUCHIOLIDAE) (FOSSIL)
- portaeferreae, Pseudohaploceras portaeferreae (Tietze, 1872 †) - (DESMOCERATIDAE) (FOSSIL)
- portalesense, Chondropometes sagebieni portalesense C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- portalesensis, Organocoptis portalesensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- portalesi, Mantelliceras portalesi Kellum & Mintz, 1962 † - (ACANTHOCERATIDAE) (FOSSIL)
- portalesianum, Propeamussium portalesianum W.H. Dall, 1886 - syn of: Parvamussium pourtalesianum (W.H. Dall, 1886) - (PROPEAMUSSIIDAE)
- portana, Astarte portana McLearn, 1945 † - (ASTARTIDAE) (FOSSIL)
- portaroi, Turritella portaroi Lisson, 1925 † - (TURRITELLIDAE) (FOSSIL)
- portarum, Crioceratites portarum Etayo-Serna, 1968 † - (CRIOCERATITIDAE) (FOSSIL)
- portei, Helicostyla woodiana portei (L. Pfeiffer, 1861) - (BRADYBAENIDAE)
- portelli, Crassatella portelli DeVries, 2016 † - (CRASSATELLIDAE) (FOSSIL)
- portelli, Pseudozonaria portelli E.J. Petuch, 1990 † - (CYPRAEIDAE) (FOSSIL)
- portelli, Heilprinia portelli E.J. Petuch, 1994 † - (FASCIOLARIIDAE) (FOSSIL)
- portelli, Dermomurex portelli E.H. Vokes, 1992 † - (MURICIDAE) (FOSSIL)
- portensis, Macrogastra rolphii portensis (Luso da Silva, 1872) - (CLAUSILIIDAE)
- portensis, Sticteulima portensis (C.F. Laseron, 1955) - (EULIMIDAE)
- portensis, Anodonta portensis É.A.A. Locard, 1899 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- portentosa, Corbicula portentosa P.M. Heude, 1887 - syn of: Corbicula fluminea (O.F. Müller, 1774) - (CYRENIDAE)
- portentosa, Gonionowakia portentosa (Ruan & Mu, 1983 †) - (GONIONOWAKIIDAE) (FOSSIL)
- portentosa, Costabieta portentosa A. Peñas & E. Rolán, 2017 - (PYRAMIDELLIDAE)
- portentosa, Alvania portentosa E. Rolán & J.M. Hernández, 2007 - (RISSOIDAE)
- portentosus, Aeneator portentosus K. Fraussen & J. Sellanes, 2008 - (BUCCINIDAE)
- portentosus, Fallacites portentosus Ruzhentsev & Bogoslovskaya, 1971 † - (HOMOCERATIDAE) (FOSSIL)
- portentus, Turbo portentus White, 1887 † - (TURBINIDAE) (FOSSIL)
- porterae, Felimare porterae (T.D.A. Cockerell, 1901) - (CHROMODORIDIDAE)
- porterae, Glossodoris porterae T.D.A. Cockerell, 1901 - syn of: Felimare porterae (T.D.A. Cockerell, 1901) - (CHROMODORIDIDAE)
- porterae, Hypselodoris porterae T.D.A. Cockerell, 1901 - syn of: Felimare porterae (T.D.A. Cockerell, 1901) - (CHROMODORIDIDAE)
- porterae, Humboldtiana porterae F.G. Thompson & B.A. Brewer, 1999 - (HUMBOLDTIANIDAE)
- porterae, Cincinnatia porterae (F.G. Thompson, 2000) - (HYDROBIIDAE)
- porterensis, Dentalium porterensis C.S. Weaver, 1942 † - (DENTALIIDAE) (FOSSIL)
- porterensis, Modiolus porterensis (Clark †) - (MYTILIDAE) (FOSSIL)
- porterensis, Crenella porterensis C.S. Weaver, 1916 † - (MYTILIDAE) (FOSSIL)
- porterensis, Vertipecten porterensis (C.S. Weaver, 1912 †) - (PECTINIDAE) (FOSSIL)
- porteri, Panenka porteri Dun & W.H. Benson, 1920 † - (ANTIPLEURIDAE) (FOSSIL)
- porteri, Cochlostyla porteri L. Pfeiffer, 1861 - syn of: Helicostyla woodiana portei (L. Pfeiffer, 1861) - (BRADYBAENIDAE)
- porteri, Austrochloritis porteri (J.C. Cox, 1866) - (CAMAENIDAE)
- porteri, Cerithiopsis porteri F.C. Baker, G.D. Hanna & A.M. Strong, 1938 - (CERITHIOPSIDAE)
- porteri, Lyncina porteri (C.N. Cate, 1966) - (CYPRAEIDAE)
- porteri, Haitia porteri (J. Germain, 1913) - (PHYSIDAE)
- porteri, Odostomia porteri F.C. Baker, G.D. Hanna & A.M. Strong, 1928 - (PYRAMIDELLIDAE)
- porteri, Rissoina porteri F.C. Baker, G.D. Hanna & A.M. Strong, 1930 - syn of: Schwartziella ephamilla (R.B. Watson, 1886) - (RISSOINIDAE)
- porteri, Sanguinolites porteri Whidborne, 1896 † - (SANGUINOLITIDAE) (FOSSIL)
- porteri, Prothalotia porteri (T. Iredale, 1940) - (TROCHIDAE)
- porteri joycae, Lyncina porteri joycae P.W. Clover, 1970 - syn of: Lyncina joyceae (P.W. Clover, 1970) - (CYPRAEIDAE)
- porteri joyceae, Lyncina porteri joyceae P.W. Clover, 1970 - syn of: Lyncina joyceae (P.W. Clover, 1970) - (CYPRAEIDAE)
- porteri nigromaculata, Lyncina porteri nigromaculata F.Jr. Lorenz, 2002 - (CYPRAEIDAE)
- Porterius, Genus Porterius B.L. Clark, 1925 (PARALLELODONTIDAE)
- portesiana, Diplodonta portesiana (A.V.M.D. D'Orbigny, 1846) - (UNGULINIDAE)
- portesiana, Venus portesiana D'Orbigny, 1842 - syn of: Leukoma subrostrata (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- portgentilensis, Persististrombus latus portgentilensis (F.R. Bernard, 1982) - (STROMBIDAE)
- porti, Pupisoma porti J.W. Brazier, 1876 - (VERTIGINIDAE)
- portia, Paraclathurella portia E.A. Smith, 1884 - syn of: Paraclathurella gracilenta (L.A. Reeve, 1843) - (CLATHURELLIDAE)
- portia, Pleurotoma portia E.A. Smith, 1884 - syn of: Paraclathurella gracilenta (L.A. Reeve, 1843) - (TURRIDAE)
- portica, Chondrothyretes shuttleworthi portica (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- porticola, Chondrothyretes gundlachi porticola (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- porticus, Fusinus porticus W.H. Dall, 1915 - syn of: Phos fusoides (C.B. Adams, 1852) - (FASCIOLARIIDAE)
- portieri, Joubiniteuthis portieri (L.M.A.O.E. Joubin, 1912) - (JOUBINITEUTHIDAE)
- portillensis, Chilina portillensis J.G. Hidalgo, 1880 - (CHILINIDAE)
- portillensis, Chondropoma textum portillensis (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- portillensis, Cochlodinella portillensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- portillonis, Cerion portillonis D.A. Welch, 1934 - (CERIONIDAE)
- portillonis, Cerion ramsdeni portillonis C. de la Torre in D.A. Welch, 1934 - (CERIONIDAE)
- portionalis, Candidula portionalis É.A.A. Locard, 1899 - syn of: Candidula olissipensis (G. Servain, 1880) - (HYGROMIIDAE)
- portisi, Acrochordiceras portisi Martelli, 1906 † - syn of: Acrochordiceras carolinae Mojsisovics, 1882 † - (ACROCHORDICERATIDAE) (FOSSIL)
- portisi, Grammoceras portisi Fucini, 1900 † - syn of: Fuciniceras lavinianum (Fucini, 1900 †) - (HILDOCERATIDAE) (FOSSIL)
- Portlandella, Genus Portlandella Stewart, 1930 † (NUCULANIDAE) (FOSSIL)
- portlandensis, Cyclotus portlandensis E. Chitty, 1857 - syn of: Poteria corrugata (K.T. Menke, 1830) - (CYCLOPHORIDAE)
- portlandensis, Straparollus portlandensis Fenton & Fenton, 1924 † - (EUOMPHALIDAE) (FOSSIL)
- portlandensis, Poteria varians portlandensis (E. Chitty) - (NEOCYCLOTIDAE)
- portlandensis, Varicellina vicina portlandensis H.B. Baker, 1935 - (OLEACINIDAE)
- portlandensis, Menetus portlandensis H.B. Baker, 1945 - (PLANORBIDAE)
- portlandensis, Sagda spei portlandensis H.B. Baker, 1935 - (SAGDIDAE)
- Portlandia, Genus Portlandia O.A.L. Mörch, 1857 (YOLDIIDAE)
- portlandica, Astarte portlandica J.W. Mighels, 1843 - (ASTARTIDAE)
- portlandica, Gravesia portlandica (De Loriol †) - (AULACOSTEPHANIDAE) (FOSSIL)
- portlandica, Melanella portlandica P. Bartsch, 1927 - syn of: Melanella thersites (P.P. Carpenter, 1864) - (EULIMIDAE)
- portlandica, Mesomiltha portlandica (Sowerby, 1836 †) - (LUCINIDAE) (FOSSIL)
- portlandica, Aptyxiella portlandica (J. de C. Sowerby) † - (NERINEIDAE) (FOSSIL)
- portlandica, Nucula portlandica E. Hitchcock, 1836 - syn of: Portlandia arctica (Gray, 1824) - (NUCULIDAE)
- portlandica, Nucula portlandica L.A. Reeve, 1855 - syn of: Portlandia arctica (Gray, 1824) - (NUCULIDAE)
- portlandica, Pseudomonotis portlandica Cox † - (PSEUDOMONOTIDAE) (FOSSIL)
- portlandica, Purpuroidea portlandica Hudleston † - (PURPUROIDEIDAE) (FOSSIL)
- portlandica, Quenstedtia portlandica L.R. Cox, 1929 † - (QUENSTEDTIIDAE) (FOSSIL)
- portlandica, Corbicella portlandica Damon, 1860 † - (TANCREDIIDAE) (FOSSIL)
- portlandicus, Hercoglossa portlandicus T.A. Conrad 1866 † - (HERCOGLOSSIDAE) (FOSSIL)
- portlandicus, Lomanotus portlandicus I.C. Thompson, 1851 - syn of: Lomanotus marmoratus (J. Alder & A. Hancock, 1845) - (LOMANOTIDAE)
- portlandicus, Lithophaga portlandicus Damon, 1860 † - (MYTILIDAE) (FOSSIL)
- portlandicus, Pseudaganides portlandicus (Foord & Crick, 1890 †) - (PSEUDONAUTILIDAE) (FOSSIL)
- portlocki, Tremanotus portlocki Reed, 1921 † - (BUCANIIDAE) (FOSSIL)
- portlocki, Menuites portlocki (J.W. Hall & F.B. Meek, 1856 †) - (PACHYDISCIDAE) (FOSSIL)
- portlocki, Menuites portlocki (B. Sharp, 1855 †) - (PACHYDISCIDAE) (FOSSIL)
- portlocki, Saxoceras portlocki Wright, 1881 † - (SCHLOTHEIMIIDAE) (FOSSIL)
- Portlockia, syn of: Genus Yunnania Mansuy , 1912 † (ARAEONEMATIDAE) (FOSSIL)
- portlockiana, Gosseletina portlockiana (de Koninck, 1844 †) - (GOSSELETINIDAE) (FOSSIL)
- Portlockiella, Genus Portlockiella Knight, 1945 † (PORTLOCKIELLIDAE) (FOSSIL)
- PORTLOCKIELLIDAE Batten, 1956 † - Family (GASTROPODA-VETIGASTROPODA [Subclass]-PLEUROTOMARIOIDEA [Superfamily]) (FOSSIL)
- Portlockomphalus, Genus Portlockomphalus Bandel & Geldmacher, 1996 † (PORTLOCKIELLIDAE) (FOSSIL)
- portmanni, Geitodoris portmanni (R.L. Schmekel, 1972) - (DISCODORIDIDAE)
- portobelensis, Callistochiton portobelensis A. Ferreira, 1976 - (CALLISTOPLACIDAE)
- portobellense, Incidostoma portobellense C. de la Torre, P. Bartsch & J.P.E. Morrison, 1942 - (NEOCYCLOTIDAE)
- portobeloensis, Gradiconus portobeloensis (E.J. Petuch, 1990) - (CONIDAE)
- portobeloensis, Conus portobeloensis E.J. Petuch, 1990 - syn of: Gradiconus portobeloensis (E.J. Petuch, 1990) - (CONIDAE)
- portociana, Pyruclia laevescens portociana (C.J. Maury, 1920) - (CANCELLARIIDAE)
- portoi, Cerithiopsis portoi E. Rolán & J. Espinosa, 1996 - (CERITHIOPSIDAE)
- portonoviensis, Ostrincola portonoviensis Reddiah, 1962 - syn of: Meretrix casta (J.F. Gmelin, 1791) - (VENERIDAE)
- portoparkerensis, Turbonilla portoparkerensis L.G. Hertlein & A.M. Strong, 1951 - (PYRAMIDELLIDAE)
- portoricana, Syntomodrillia portoricana P.J. Fallon, 2016 - (DRILLIIDAE)
- portoricana, Codakia portoricana W.H. Dall, 1901 - (LUCINIDAE)
- portoricana, Turbonilla portoricana W.H. Dall & C.T. Simpson, 1901 - (PYRAMIDELLIDAE)
- portoricana, Alvania portoricana W.H. Dall & C.T. Simpson, 1901 - (RISSOIDAE)
- portoricana, Finella portoricana (W.H. Dall & C.T. Simpson, 1901) - (SCALIOLIDAE)
- portoricanus, Conus portoricanus C.H. Hwass in J.G. Bruguière, 1792 - syn of: Chelyconus ermineus (I. von Born, 1778) - (CONIDAE)
- portoricanus, Ceratodiscus portoricanus H.A. Pilsbry & E.G. Vanatta, 1927 - (HELICINIDAE)
- portoricensis, Coccocrater portoricensis (W.H. Dall & C.T. Simpson, 1901) - (COCCULINIDAE)
- portoricensis, Niso portoricensis W.H. Dall & C.T. Simpson, 1901 - (EULIMIDAE)
- portoricensis, Polyschides portoricensis (J. Henderson, 1920) - (GADILIDAE)
- portoricensis, Mulinia portoricensis R.J. Shuttleworth, 1856 - syn of: Mulinia cleryana (A.V.M.D. D'Orbigny, 1846) - (MACTRIDAE)
- portoricensis, Varicella portoricensis (L. Pfeiffer, 1848) - (OLEACINIDAE)
- portoricensis, Chlamys portoricensis Hubbard, 1920 † - syn of: Chlamys portoricoensis Hubbard, 1920 † - (PECTINIDAE) (FOSSIL)
- portoricensis, Turbonilla portoricensis W.H. Dall & C.T. Simpson, 1901 - (PYRAMIDELLIDAE)
- portoricensis, Platysuccinea portoricensis (R.J. Shuttleworth, 1854) - (SAGDIDAE)
- portoricensis, Eupera portoricensis (T. Prime, 1861) - (SPHAERIIDAE)
- portoricensis, Teredo portoricensis W.F. Clapp, 1924 - (TEREDINIDAE)
- portoricensis, Triphora portoricensis E. Rolán & C. Redfern, 2008 - (TRIPHORIDAE)
- portoricensis, Leidyula portoricensis (C.G. Semper, 1885) - (VERONICELLIDAE)
- Portoricia, Genus Portoricia Maury, 1920 † (CERITHIIDAE) (FOSSIL)
- portoricoensis, Ostrea portoricoensis Hubbard, 1920 † - (OSTREIDAE) (FOSSIL)
- portoricoensis, Chlamys portoricoensis Hubbard, 1920 † - (PECTINIDAE) (FOSSIL)
- portoricoensis, Orthaulax portoricoensis Hubbard, 1921 † - (STROMBIDAE) (FOSSIL)
- portosanctana, Boettgeria portosanctana R.T. Lowe, 1855 - syn of: Boettgeria lowei (J.A. Albers, 1852) - (CLAUSILIIDAE)
- portosanctana, Pseudocampylaea portosanctana (G.B. I Sowerby, 1824) - (HYGROMIIDAE)
- portosanctana, Truncatellina portosanctana R. Hutterer & K. Groh, 1993 - (VERTIGINIDAE)
- portosanctanus, Caseolus portosanctanus R.T. Lowe, 1855 - syn of: Caseolus innominatus (J.E. Gray, 1825) - (HYGROMIIDAE)
- portosanctanus, Semifruticicola costulata portosanctanus A.J. Wagner, 1914 - (HYGROMIIDAE)
- portosanctanus, Madeirovitrina portosanctanus (K. Groh & J. Hemmen, 1996) - (VITRINIDAE)
- portosancti, Leptaxis simia portosancti (T.V. Wollaston, 1878) - (HYGROMIIDAE)
- portosanctus, Caseolus portosanctus R.T. Lowe, 1854 - (HYGROMIIDAE)
- portosantensis, Crisilla beniamina portosantensis F. Nordsieck, 1972 - (RISSOIDAE)
- portseaensis, Linopyrga portseaensis (J.H. Gatliff & C.J. Gabriel, 1911) - (PYRAMIDELLIDAE)
- portuandoi, Chondropoma portuandoi C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- Portugala, Genus Portugala E. Gittenberger, 1980 (HYGROMIIDAE)
- portulacoides, Sinuitina portulacoides G.B. Campbell & H. Engel, 1963 † - (TROPIDODISCIDAE) (FOSSIL)
- portulana, Anodonta portulana W. Kobelt, 1908 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- portulanus, Murex portulanus T.A. de M. Monterosato in A. Franceschini, 1906 - syn of: Hexaplex trunculus (C. Linnaeus, 1758) - (MURICIDAE)
- portuondi, Urocoptis portuondi C. de la Torre, 1929 - syn of: Urocoptis portuondoi (C. de la Torre, 1929) - (UROCOPTIDAE)
- portuondoi, Tetrentodon portuondoi C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- portuondoi, Microceramus portuondoi C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- portuondoi, Urocoptis portuondoi (C. de la Torre, 1929) - (UROCOPTIDAE)
- portuondoi, Palenquecoptis portuondoi C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- portus, Spurlingia portus T. Iredale, 1937 - syn of: Spurlingia dunkiensis (E. Forbes, 1851) - (CAMAENIDAE)
- portuspatris, Cerion josephi portuspatris C.G. Aguayo & M.I. Sánchez Roig, 1953 - (CERIONIDAE)
- porulosa, Zygopleura porulosa (Terquem, 1855 †) - (ZYGOPLEURIDAE) (FOSSIL)
- porulosum, Orthocardium porulosum (D.C. Solander, 1766 †) - (CARDIIDAE) (FOSSIL)
- porulosum hopneri, Orthocardium porulosum hopneri M. Glibert & Poel, 1970 † - (CARDIIDAE) (FOSSIL)
- porulosum subporulosum, Orthocardium porulosum subporulosum (A.V.M.D. D'Orbigny, 1850 †) - (CARDIIDAE) (FOSSIL)
- porumbari, Melanopsis porumbari Š. Brusina, 1881 † - (MELANOPSIDAE) (FOSSIL)
- porumbari, Melanopsis porumbari Porumbaru, 1881 † - syn of: Melanopsis porumbari Š. Brusina, 1881 † - (MELANOPSIDAE) (FOSSIL)
- porvenirensis, Bivetopsia porvenirensis B.M. Landau & al., 2012 † - (CANCELLARIIDAE) (FOSSIL)
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