- pasada, Anadara pasada A.A. Olsson, 1964 † - (ARCIDAE) (FOSSIL)
- pasada, Turritella pasada H.A. Pilsbry & A.A. Olsson, 1941 † - (TURRITELLIDAE) (FOSSIL)
- pasajae, Pseudotryonia pasajae R. Hershler, H.P. Liu & J.J. Landye, 2011 - (HYDROBIIDAE)
- pasca, Borniola pasca B.K. Raines & M. Huber, 2012 - (LASAEIDAE)
- pasca, Pascahinnites pasca (W.H. Dall, 1908) - (PECTINIDAE)
- Pascahinnites, Genus Pascahinnites H.H. Dijkstra & B.K. Raines, 1999 (PECTINIDAE)
- pascaleae, Calliostoma pascaleae B.M. Landau & F. Da Silva, 2010 † - (CALLIOSTOMATIDAE) (FOSSIL)
- pascaleae, Nassarius pascaleae B.M. Landau & al., 2013 † - (NASSARIIDAE) (FOSSIL)
- pascaleae, Lobatus pascaleae B.M. Landau & al., 2010 † - (STROMBIDAE) (FOSSIL)
- pascali, Fluviopupa pascali M. Haase, Fontaine & O. Gargominy, 2010 - (HYDROBIIDAE)
- pascali, Parvedentulina pascali K.C. Emberton, 2002 - (STREPTAXIDAE)
- pascali, Testacella pascali J.R. Bourguignat in P. Massot, 1870 - syn of: Testacella haliotidea J.P.R. Draparnaud, 1801 - (TESTACELLIDAE)
- pascalia, Solaropsis pascalia (F. Cailliaud, 1857) - (PLEURODONTIDAE)
- pascalianus, Arion pascalianus J.F. Mabille, 1868 - (ARIONIDAE)
- paschalis, Belomitra paschalis (K.H.J. Thiele, 1925) - (BELOMITRIDAE)
- paschalis, Mericella paschalis (K.H.J. Thiele, 1925) - (CANCELLARIIDAE)
- paschalis, Mauritia paschalis P.F. Röding, 1798 - syn of: Mauritia mauritiana (C. Linnaeus, 1758) - (CYPRAEIDAE)
- paschalis, Mangelia paschalis K.H.J. Thiele, 1925 - syn of: Belomitra pacifica (W.H. Dall, 1908) - (MANGELIIDAE)
- paschalis, Turbonilla paschalis K.H.J. Thiele, 1925 - (PYRAMIDELLIDAE)
- paschalis, Stosicia paschalis (J.C. Melvill & R. Standen, 1901) - (ZEBINIDAE)
- paschalli, Gradiconus paschalli (E.J. Petuch, 1998) - (CONIDAE)
- pascoei, Helix pascoei C.M.D.E. Legrand, 1871 - syn of: Stenacapha hamiltoni (J.C. Cox, 1868) - (HELICIDAE)
- pascoei, Glyptophiceras pascoei Spath, 1930 † - syn of: Tompophiceras pascoei (Spath, 1930 †) - (KASHMIRITIDAE) (FOSSIL)
- pascoei, Pecten pascoei Cox, 1936 † - (PECTINIDAE) (FOSSIL)
- pascoei, Linopyrga pascoei (G.F. Angas, 1867) - (PYRAMIDELLIDAE)
- pascoei, Clanculus pascoei A. Dey, 1961 † - (TROCHIDAE) (FOSSIL)
- pascoei, Tompophiceras pascoei (Spath, 1930 †) - (XENODISCIDAE) (FOSSIL)
- Pascoeites, Genus Pascoeites Spath, 1933 † (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- Pascoella, Genus Pascoella Cox, 1949 † (CARDIIDAE) (FOSSIL)
- pascoensis, Cestumcerithium pascoensis (W.C. Mansfield, 1937 †) - (CERITHIIDAE) (FOSSIL)
- pascoensis, Eucycloscala pascoensis F. Haas, 1953 † - (EUCYCLOSCALIDAE) (FOSSIL)
- pascua, Nodochila pascua (L.G. Hertlein, 1962) - (COLUMBELLIDAE)
- pascua, Echinolittorina pascua (J.P. Rosewater, 1970) - (LITTORINIDAE)
- pascua, Siphonaria pascua H.A. Rehder, 1980 - (SIPHONARIIDAE)
- pascuana, Pupa pascuana B.K. Raines, 2003 - (ACTEONIDAE)
- pascuana, Persicula pascuana H.A. Rehder, 1980 † - syn of: Granula pascuana (H.A. Rehder, 1980 †) - (CYSTISCIDAE) (FOSSIL)
- pascuana, Granula pascuana (H.A. Rehder, 1980 †) - (MARGINELLIDAE) (FOSSIL)
- pascuanum, Caecum pascuanum B.K. Raines & M. Pizzini, 2005 - (CAECIDAE)
- pascuensis, Miliariconus miliaris pascuensis (H.A. Rehder, 1980) - (CONIDAE)
- pascui, Procladiscites pascui E.A.L. Kittl, 1908 † - syn of: Hypocladiscites subtornatus (Mojsisovics, 1873 †) - (CLADISCITIDAE) (FOSSIL)
- Pascula, Genus Pascula W.H. Dall, 1908 (MURICIDAE)
- pascus, Melampus pascus N.H. Odhner, 1922 - (ELLOBIIDAE)
- pasdejeuensis, Distichoceras pasdejeuensis (Gerard & Contaut, 1936 †) - (OPPELIIDAE) (FOSSIL)
- paserula, Arca paserula L.G. Sheldon, 1916 - syn of: Bentharca asperula (W.H. Dall, 1881) - (ARCIDAE)
- pasi, Dermomurex pasi (E.H. Vokes, 1993) - (MURICIDAE)
- pasi, Viator pasi E.H. Vokes, 1993 - syn of: Dermomurex pasi (E.H. Vokes, 1993) - (MURICIDAE)
- Pasia, syn of: Genus Vexillum P.F. Röding, 1798 (COSTELLARIIDAE)
- pasini, Hypselodoris pasini J.B. Vérany, 1846 - syn of: Felimare villafranca (A. Risso, 1818) - (CHROMODORIDIDAE)
- pasinii, Doris pasinii J.B. Vérany, 1846 - syn of: Felimare villafranca (A. Risso, 1818) - (DORIDIDAE)
- pasinii, Tectonatica pasinii (J.F. Bayan, 1870 †) - (NATICIDAE) (FOSSIL)
- pasinii, Moerkeia pasinii (Stoppani, 1858 †) - (PROTORCULIDAE) (FOSSIL)
- pasionensis, Amnicola pasionensis C. Goodrich & H. Van Der Schalie, 1937; - syn of: Aroapyrgus pasionensis (C. Goodrich & H. Van Der Schalie, 1937) - (AMNICOLIDAE)
- pasionensis, Aroapyrgus pasionensis (C. Goodrich & H. Van Der Schalie, 1937) - (COCHLIOPIDAE)
- pasionensis, Potamanax pasionensis H.A. Pilsbry, 1956 - (PACHYCHILIDAE)
- pasiphae, Pseudamnicola pasiphae Willmann, 1980 † - (HYDROBIIDAE) (FOSSIL)
- Pasiphae, syn of: Genus Timoclea T. Brown, 1827 (VENERIDAE)
- pasiphaes, Epitonium pasiphaes (J.C. Melvill, 1912) - (EPITONIIDAE)
- pasirensis, Hebra pasirensis C.H. Oostingh, 1939 † - syn of: Nassarius ovum Martin, 1879 † - (NASSARIIDAE) (FOSSIL)
- Pasithea, syn of: Genus Pasitheola Cossmann, 1896 † (IRAVADIIDAE) (FOSSIL)
- pasithea, Charitodoron pasithea J.R. le B. Tomlin, 1935 - syn of: Charitodoron thalia J.R. le B. Tomlin, 1932 - (MITRIDAE)
- Pasithea, syn of: Genus Partula A.E.J. Férussac, 1821 (PARTULIDAE)
- pasithea, Macromphalus pasithea R.N. Kilburn, 1977 - (VANIKORIDAE)
- Pasitheola, Genus Pasitheola Cossmann, 1896 † (IRAVADIIDAE) (FOSSIL)
- pasitheolina, Nozeba pasitheolina P. Lozouet, 1998 † - (IRAVADIIDAE) (FOSSIL)
- pasitheum, Vexillum pasitheum (J.C. Melvill & R. Standen, 1901) - (COSTELLARIIDAE)
- paskentaensis, Bochianites paskentaensis Anderson, 1938 † - (BOCHIANITIDAE) (FOSSIL)
- paskentaensis, Paskentana paskentaensis Stanton, 1895 † - syn of: Paskentana humerosa (Stanton, 1895 †) - (PASKENTANIDAE) (FOSSIL)
- Paskentana, Genus Paskentana Kiel & al., 2008 † (PASKENTANIDAE) (FOSSIL)
- PASKENTANIDAE Kaim et al., 2014 † - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-ABYSSOCHRYSOIDEA [Superfamily]) (FOSSIL)
- Paskentites, Genus Paskentites Imlay & Jones, 1970 † (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- Paslucina, Subgenus Lucina (Paslucina) Olsson, 1964 † (LUCINIDAE) (FOSSIL)
- Pasmaditta, Genus Pasmaditta J.A. Kershaw & B.J. Smith, 1986 (PUNCTIDAE)
- pasniensis, Etrema spurca pasniensis (J.C. Melvill, 1917) - (CLATHURELLIDAE)
- pasonis, Rabdotus dealbatus pasonis H.A. Pilsbry, 1902 - (BULIMULIDAE)
- pasonis, Ashmunella pasonis M. Drake, 1951 - (POLYGYRIDAE)
- pasonis, Haplocion pasonis (W.H. Dall, 1896) - (UROCOPTIDAE)
- Pasottia, Genus Pasottia Parent & al., 2008 † (OPPELIIDAE) (FOSSIL)
- pasquayi, Pseudosageceras pasquayi Renz & Renz, 1948 † - (HEDENSTROEMIIDAE) (FOSSIL)
- pasquayi, Cycloclymenia pasquayi Renz, 1914 † - (PHENACOCERATIDAE) (FOSSIL)
- passa, Anadara passa T. Iredale, 1939 - (ARCIDAE)
- passaloides, Crassispira passaloides A.E.M. Cossmann, 1902 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- PASSALOTEUTHIDAE - syn of Family: PASSALOTEUTHIDIDAE (FOSSIL)
- PASSALOTEUTHIDIDAE Naef, 1922 † - Family (CEPHALOPODA-COLEOIDEA [Subclass]-BELEMNITIDA [Order]) (FOSSIL)
- Passaloteuthis, Genus Passaloteuthis Blainville, 1827 † (PASSALOTEUTHIDIDAE) (FOSSIL)
- Passamaella, Genus Passamaella L. Pfeiffer, 1878 (CERASTUIDAE)
- passamaiana, Passamaella passamaiana (S.A.A. Petit De La Saussaye, 1853) - (CERASTUIDAE)
- passargei, Achatina schinziana passargei E.C. Von Martens, 1900 - (ACHATINIDAE)
- passavanti, Unio passavanti J.R. Bourguignat, 1889 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- passayana, Trigonoarca passayana (d'Orbigny 1844) † - (CUCULLAEIDAE) (FOSSIL)
- passendorferi, Protancyloceras passendorferi Wierzbowski, 1990 † - (PROTANCYLOCERATIDAE) (FOSSIL)
- Passendorferia, Genus Passendorferia Brochwicz , 1973 † (PERISPHINCTIDAE) (FOSSIL)
- passer, Rhombovomeria passer (Zekeli, 1852 †) - (HARPAGODIDAE) (FOSSIL)
- passerina, Horologica passerina C. Chen, C.F. Tseng & L.C. Lo, 2012 - (CERITHIOPSIDAE)
- passerina, Palmadusta clandestina passerina (J.C. Melvill, 1888) - (CYPRAEIDAE)
- passerina, Serratovola rubicunda passerina (R.B. Hinds, 1845) - (PECTINIDAE)
- passerinalis, Simnia passerinalis (J.B.P.A. Lamarck †) - (OVULIDAE) (FOSSIL)
- passerinus, Pecten passerinus R.B. Hinds, 1845 - syn of: Serratovola rubicunda passerina (R.B. Hinds, 1845) - (PECTINIDAE)
- passieri, Ringicula passieri L.J. Morlet, 1880 - (RINGICULIDAE)
- passiriensis, Carychium passiriensis F. Schrott, 1935 - syn of: Carychium minimum O.F. Müller, 1774 - (ELLOBIIDAE)
- passleri, Ischnochiton passleri K.H.J. Thiele, 1909 - syn of: Ischnochiton paessleri K.H.J. Thiele, 1909 - (ISCHNOCHITONIDAE)
- passmoreae, Sthenodonta passmoreae Pojeta & Gilbert-Tomlinson, 1977 † - (NUCULARCIDAE) (FOSSIL)
- passosi, Mautodontha passosi A.F. Sartori, O. Gargominy & Fontaine, 2014 - (ENDODONTIDAE)
- Passya, Genus Passya G.P. Deshayes, 1858 (GALEOMMATIDAE)
- passyana, Trigonoarca passyana (A.V.M.D. D'Orbigny †) - (CUCULLAEIDAE) (FOSSIL)
- passyana, Sphenia passyana G.P. Deshayes, 1857 † - (MYIDAE) (FOSSIL)
- passyanus, Pictoneritina passyanus (G.P. Deshayes, 1864 †) - (NERITIDAE) (FOSSIL)
- passyanus denslatus, Pictoneritina passyanus denslatus Symonds, 2002 † - (NERITIDAE) (FOSSIL)
- passyi, Plagiocardium granulosum passyi (G.P. Deshayes, 1858 †) - (CARDIIDAE) (FOSSIL)
- pastasana, Anodonta pastasana S. Clessin, 1879 - syn of: Anodontites tenebricosa (I. Lea, 1834) - (UNIONIDAE)
- pastelilloensis, Cerion pastelilloensis M.I. Sánchez Roig, 1951 - (CERIONIDAE)
- pasterae, Moitessieria pasterae J. Corbella, D.M. Alba, A. Tarruella & al., 2009 - (MOITESSIERIIDAE)
- pastillus, Platyostoma pastillus A.H. Clarke, 1909 † - (PLATYCERATIDAE) (FOSSIL)
- pastinaca, Gemophos pastinaca (L.A. Reeve, 1846) - (BUCCINIDAE)
- pastinaca, Conus pastinaca J.B.P.A. Lamarck, 1810 - syn of: Dauciconus daucus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- pastinacea, Fusus pastinacea L.A. Reeve, 1848 - syn of: Penion mandarinus (P.L. Duclos, 1851) - (FASCIOLARIIDAE)
- pastorei, Struthioptera pastorei Y. Camacho-García, 1953 † - (APORRHAIDAE) (FOSSIL)
- pastorella, Cernuella pastorella C.A. Westerlund, 1883 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- pastorinoi, Trophon pastorinoi C. Nielsen, 2003 † - (MURICIDAE) (FOSSIL)
- pastorinoi, Xanthodaphne pastorinoi Y.I. Kantor, M.G. Harasewych & N. Puillandre, 2016 - (RAPHITOMIDAE)
- pastorpueri, Aemiliella ripkeni pastorpueri A. Reischütz, N. Reischütz & P.L. Reischütz, 2011 - (SPELAEODISCIDAE)
- patae, Kellyconus patae (R.T. Abbott, 1971) - (CONIDAE)
- patae, Gladioconus patae R.T. Abbott, 1971 - syn of: Kellyconus patae (R.T. Abbott, 1971) - (CONIDAE)
- patae binghamae, Gladioconus patae binghamae E.J. Petuch, 1987 - syn of: Kellyconus binghamae (E.J. Petuch, 1987) - (CONIDAE)
- patagiacus, Scaeurgus patagiacus S.S. Berry, 1913 - syn of: Scaeurgus unicirrhus (S. Delle Chiaje, 1841) - (OCTOPODIDAE)
- patagiata mauritiana, Tellina patagiata mauritiana J.M.R.M. Viader, 1951 - syn of: Afsharius mauritianus (J.M.R.M. Viader, 1951) - (TELLINIDAE)
- patagiatus, Pterynotus patagiatus (C. Hedley, 1912) - (MURICIDAE)
- patagiatus, Scaeurgus patagiatus S.S. Berry, 1913 - (OCTOPODIDAE)
- patagiatus, Afsharius patagiatus (B. Prashad, 1932) - (TELLINIDAE)
- Patagiosites, Genus Patagiosites Spath , 1953 † (PACHYDISCIDAE) (FOSSIL)
- patagiosus, Patagiosites patagiosus Spath, 1953 † - (PACHYDISCIDAE) (FOSSIL)
- Patagocardia, Genus Patagocardia † (CARDIIDA (UNASSIGNED)) (FOSSIL)
- Patagocharopa, Genus Patagocharopa Miquel & P.E. Rodriguez, 2016 † (CHAROPIDAE) (FOSSIL)
- patagona, Mysella patagona C.F. Ituarte, J.P. Martin & D.G. Zelaya, 2012 - (MONTACUTIDAE)
- patagonense, Hatchericeras patagonense Stanton, 1901 † - (NEOCOMITIDAE) (FOSSIL)
- patagonensis, Cucullaea patagonensis Erdmann & Morra, 1985 † - (CUCULLAEIDAE) (FOSSIL)
- patagonensis, Chesapecten patagonensis (A.V.M.D. D'Orbigny, 1842 †) - (PECTINIDAE) (FOSSIL)
- patagonensis, Rostellaria patagonensis H.F.A. von Ihering, 1903 † - (ROSTELLARIIDAE) (FOSSIL)
- Patagonibelus, Genus Patagonibelus Aguirre-Urreta & Doyle, 1989 † (BELEMNITIDA (UNASSIGNED)) (FOSSIL)
- patagonica, Eolidia patagonica D'Orbigny, 1836 - syn of: Phidiana patagonica (A.V.M.D. D'Orbigny, 1836) - (AEOLIDIIDAE)
- patagonica, Arca patagonica H.F.A. von Ihering, 1897 † - (ARCIDAE) (FOSSIL)
- patagonica, Bathydoris patagonica P. Kaiser, 1980 - syn of: Bathydoris hodgsoni C.N.E. Eliot, 1907 - (BATHYDORIDIDAE)
- patagonica, Cominella patagonica Feruglio, 1936 † - syn of: Austrosphaera patagonica (Feruglio, 1936 †) - (BUCCINIDAE) (FOSSIL)
- patagonica, Crepidula patagonica A.V.M.D. D'Orbigny, 1836 - syn of: Crepipatella dilatata (J.B.P.A. Lamarck, 1822) - (CALYPTRAEIDAE)
- patagonica, Trichotropis patagonica A.E.M. Cossmann, 1899 † - (CAPULIDAE) (FOSSIL)
- patagonica, Amphidoxa patagonica (H.H. Suter, 1900) - (CHAROPIDAE)
- patagonica, Chilina patagonica G.B. II Sowerby, 1874 - (CHILINIDAE)
- patagonica, Littoridina patagonica (A.V.M.D. D'Orbigny, 1835) - (COCHLIOPIDAE)
- patagonica, Corbula patagonica D'Orbigny, 1845 - (CORBULIDAE)
- patagonica, Crassatella patagonica H.F.A. von Ihering, 1907 † - (CRASSATELLIDAE) (FOSSIL)
- patagonica, Cuspidaria patagonica (E.A. Smith, 1885) - (CUSPIDARIIDAE)
- patagonica, Geitodoris patagonica N.H. Odhner, 1926 - (DISCODORIDIDAE)
- patagonica, Spirotropis patagonica (A.V.M.D. D'Orbigny, 1841) - (DRILLIIDAE)
- patagonica, Phidiana patagonica (A.V.M.D. D'Orbigny, 1836) - (FACELINIDAE)
- patagonica, Diodora patagonica (A.V.M.D. D'Orbigny, 1839) - (FISSURELLIDAE)
- patagonica, Fissurellidea patagonica (H. Strebel, 1907) - (FISSURELLIDAE)
- patagonica, Gastrocopta patagonica F.A.W. Miquel & Rodriguez, 2016 † - (GASTROCOPTIDAE) (FOSSIL)
- patagonica, Helix patagonica D'Orbigny, 1835 - syn of: Plagiodontes patagonica (A.V.M.D. D'Orbigny, 1835) - (HELICIDAE)
- patagonica, Sonorella patagonica H.A. Pilsbry & J.H. Ferriss, 1919 - (HELMINTHOGLYPTIDAE)
- patagonica, Diplodon chilensis patagonica (A.V.M.D. D'Orbigny, 1835) - (HYRIIDAE)
- patagonica, Lahillia patagonica H.F.A. von Ihering, 1907 † - (LAHILLIDAE) (FOSSIL)
- patagonica, Acesta patagonica (W.H. Dall, 1902) - (LIMIDAE)
- patagonica, Loligo patagonica E.A. Smith, 1881 - syn of: Doryteuthis gahi (A.V.M.D. D'Orbigny, 1835) - (LOLIGINIDAE)
- patagonica, Lucina patagonica D'Orbigny, 1842 - syn of: Diplodonta patagonica (A.V.M.D. D'Orbigny, 1842) - (LUCINIDAE)
- patagonica, Stoliczkaia patagonica Stoyanow, 1949 † - syn of: Lamnayella scotti (Breistroffer, 1947 †) - (LYELLICERATIDAE) (FOSSIL)
- patagonica, Lymnaea patagonica H. Strebel, 1907 - syn of: Pectinidens diaphanus (P.P. King in P.P. King & W.J. Broderip, 1832) - (LYMNAEIDAE)
- patagonica, Mactra patagonica d'Orbigny, 1846 - (MACTRIDAE)
- patagonica, Malletia patagonica A. de Rochebrune & J.F. Mabille, 1889 - syn of: Malletia subaequalis (G.B. II Sowerby, 1870) - (MALLETIIDAE)
- patagonica, Marginella patagonica E.C. Von Martens, 1881 - syn of: Volvarina warreni F.P. Marrat, 1876 - (MARGINELLIDAE)
- patagonica, Volvarina patagonica E.C. Von Martens, 1881 - syn of: Volvarina warreni F.P. Marrat, 1876 - (MARGINELLIDAE)
- patagonica, Anodontites patagonica J.B.P.A. Lamarck, 1819 - (MYCETOPODIDAE)
- patagonica, Modiola patagonica S.C.T. Hanley, 1843 - syn of: Modiolus patagonicus (A.V.M.D. D'Orbigny, 1842) - (MYTILIDAE)
- patagonica, Lithophaga patagonica D'Orbigny, 1846 - syn of: Leiosolenus patagonicus (A.V.M.D. D'Orbigny, 1842) - (MYTILIDAE)
- patagonica, Falsilunatia patagonica (R.A. Philippi, 1845) - (NATICIDAE)
- patagonica, Natica patagonica R.A. Philippi, 1845 - syn of: Falsilunatia patagonica (R.A. Philippi, 1845) - (NATICIDAE)
- patagonica, Austrosphaera patagonica (Feruglio, 1936 †) - (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- patagonica, Adrana patagonica (A.V.M.D. D'Orbigny, 1845) - (NUCULANIDAE)
- patagonica, Nuculana patagonica D'Orbigny, 1845 - syn of: Adrana patagonica (A.V.M.D. D'Orbigny, 1845) - (NUCULANIDAE)
- patagonica, Leionucula patagonica (R.A. Philippi, 1887 †) - (NUCULIDAE) (FOSSIL)
- patagonica, Plagiodontes patagonica (A.V.M.D. D'Orbigny, 1835) - (ODONTOSTOMIDAE)
- patagonica, Orbitestella patagonica L.R.L. Simone & D.G. Zelaya, 2004 - (ORBITESTELLIDAE)
- patagonica, Crassostrea patagonica (A.V.M.D. D'Orbigny, 1842 †) - (OSTREIDAE) (FOSSIL)
- patagonica, Kennerlyia patagonica W.H. Dall, 1915 - syn of: Pandora cistula Gould, 1850 - (PANDORIDAE)
- patagonica, Pandora patagonica W.H. Dall, 1915 - syn of: Pandora cistula Gould, 1850 - (PANDORIDAE)
- patagonica, Zygochlamys patagonica (King & W.J. Broderip, 1832) - (PECTINIDAE)
- patagonica, Psychrochlamys patagonica P.P. King, 1832 - syn of: Zygochlamys patagonica (King & W.J. Broderip, 1832) - (PECTINIDAE)
- patagonica, Pholadidea patagonica R.A. Philippi, 1887 † - (PHOLADIDAE) (FOSSIL)
- patagonica, Atrina patagonica D'Orbigny, 1842 - syn of: Cyrtopinna seminuda (J.B.P.A. Lamarck, 1819) - (PINNIDAE)
- patagonica, Elysia patagonica C. Muniain & J.A. Ortea, 1997 - (PLAKOBRANCHIDAE)
- patagonica, Berthella patagonica (A.V.M.D. D'Orbigny, 1835) - (PLEUROBRANCHIDAE)
- patagonica, Psammobia patagonica R.A. Philippi, 1887 † - (PSAMMOBIIDAE) (FOSSIL)
- patagonica, Pyramidula patagonica H.H. Suter, 1900 - (PYRAMIDULIDAE)
- patagonica, Abra patagonica H.F.A. von Ihering, 1907 - syn of: Abra uruguayensis (H.A. Pilsbry, 1897) - (SEMELIDAE)
- patagonica, Semirossia patagonica (E.A. Smith, 1881) - (SEPIOLIDAE)
- patagonica, Neoastieria patagonica F.A. Medina & A.C. Riccardi, 2005 † - (SILESITIDAE) (FOSSIL)
- patagonica, Silicula patagonica (W.H. Dall, 1908) - (SILICULIDAE)
- patagonica, Acharax patagonica (E.A. Smith, 1885) - (SOLEMYIDAE)
- patagonica, Solemya patagonica E. de C. Rios, 1975 - syn of: Solemya notialis L.R.L. Simone, 2009 - (SOLEMYIDAE)
- patagonica, Solemya patagonica E.A. Smith, 1895 - syn of: Acharax caribbaea (E.H. Vokes, 1970) - (SOLEMYIDAE)
- patagonica, Solemya patagonica E.A. Smith, 1885 - syn of: Acharax patagonica (E.A. Smith, 1885) - (SOLEMYIDAE)
- patagonica, Tegula patagonica (A.V.M.D. D'Orbigny, 1835) - (TEGULIDAE)
- patagonica, Terebra patagonica D'Orbigny, 1839 - syn of: Duplicaria gemmulata (L.C. Kiener, 1839) - (TEREBRIDAE)
- patagonica, Thyasira patagonica D.G. Zelaya, 2010 - (THYASIRIDAE)
- patagonica, Pleurotoma patagonica D'Orbigny, 1841 - syn of: Spirotropis patagonica (A.V.M.D. D'Orbigny, 1841) - (TURRIDAE)
- patagonica, Pterodonta patagonica del Rio, 2002 † - (TYLOSTOMATIDAE) (FOSSIL)
- patagonica, Diplodonta patagonica (A.V.M.D. D'Orbigny, 1842) - (UNGULINIDAE)
- patagonica, Lamellaria patagonica E.A. Smith, 1881 - (VELUTINIDAE)
- patagonica, Chione patagonica R.A. Philippi, 1887 † - (VENERIDAE) (FOSSIL)
- patagonica, Petricola patagonica D'Orbigny, 1846 - syn of: Petricola dactylus G.B. I Sowerby, 1823 - (VENERIDAE)
- patagonica, Neoimbricaria patagonica (H.F.A. von Ihering, 1897 †) - (VOLUTIDAE) (FOSSIL)
- patagonica compacta, Pyramidula patagonica compacta H.H. Suter, 1900 - (PYRAMIDULIDAE)
- patagonica inflata, Anodontites patagonica inflata (E.C. Von Martens, 1868) - (MYCETOPODIDAE)
- patagonica magellanica, Spirotropis patagonica magellanica (E.C. Von Martens, 1881) - (DRILLIIDAE)
- patagonica soluta, Falsilunatia patagonica soluta (A.A. Gould, 1848) - (NATICIDAE)
- patagonica uruguayensis, Anodontites patagonica uruguayensis (I. Lea, 1860) - (MYCETOPODIDAE)
- patagonica wymani, Anodontites patagonica wymani (I. Lea, 1860) - (MYCETOPODIDAE)
- Patagonicardium, Genus Patagonicardium Frassinetti & Covacevich, 1999 † (CARDIIDAE) (FOSSIL)
- patagonicum, Acanthoceras patagonicum H.A. Leanza, 1970 † - syn of: Crioceratites yrigoyeni H.A. Leanza, 1970 † - (ACANTHOCERATIDAE) (FOSSIL)
- patagonicum, Iheringicardium patagonicum (H.F.A. von Ihering, 1907 †) - (CARDIIDAE) (FOSSIL)
- patagonicum, Cymatoceras patagonicum Cichowolski, 2003 † - (CYMATOCERATIDAE) (FOSSIL)
- patagonicum, Entodesma patagonicum D'Orbigny, 1846 - (LYONSIIDAE)
- patagonicum, Punctum patagonicum F.A.W. Miquel & Rodriguez, 2016 † - (PUNCTIDAE) (FOSSIL)
- patagonicum, Pisidium patagonicum (H.A. Pilsbry, 1911) - (SPHAERIIDAE)
- patagonicum, Agathistoma patagonicum (A.V.M.D. D'Orbigny, 1835 †) - (TEGULIDAE) (FOSSIL)
- patagonicus, Helicancylus patagonicus Stolley, 1912 † - (ANCYLOCERATIDAE) (FOSSIL)
- patagonicus, Bulimus patagonicus D'Orbigny, 1835 - syn of: Plagiodontes patagonica (A.V.M.D. D'Orbigny, 1835) - (BULIMULIDAE)
- patagonicus, Leptoconus patagonicus Frenguelli, 1932 † - (CONIDAE) (FOSSIL)
- patagonicus, Pachydiscus patagonicus (Paulcke, 1907 †) - (DESMOCERATIDAE) (FOSSIL)
- patagonicus, Fusus patagonicus Sowerby, 1846 - syn of: Trophon patagonicus (Sowerby, 1846) - (FASCIOLARIIDAE)
- patagonicus, Radiodiscus patagonicus (H.H. Suter, 1900) - (HELICODISCIDAE)
- patagonicus, Trophon patagonicus (Sowerby, 1846) - (MURICIDAE)
- patagonicus, Concholepas patagonicus J.F. Mabille, 1886 - syn of: Concholepas concholepas (J.G. Bruguière, 1789) - (MURICIDAE)
- patagonicus, Murex patagonicus J.B.P.A. Lamarck, 1817 - syn of: Trophon geversianum (P.S. Pallas, 1774) - (MURICIDAE)
- patagonicus, Leiosolenus patagonicus (A.V.M.D. D'Orbigny, 1842) - (MYTILIDAE)
- patagonicus, Modiolus patagonicus (A.V.M.D. D'Orbigny, 1842) - (MYTILIDAE)
- patagonicus, Mytilus patagonicus D'Orbigny, 1842 - syn of: Modiolus patagonicus (A.V.M.D. D'Orbigny, 1842) - (MYTILIDAE)
- patagonicus, Mytilus patagonicus S. Clessin, 1887 - syn of: Semimytilus algosus (Gould, 1850) - (MYTILIDAE)
- patagonicus, Polinices patagonicus R.A. Philippi, 1845 - syn of: Falsilunatia patagonica (R.A. Philippi, 1845) - (NATICIDAE)
- patagonicus, Octopus patagonicus A. Lönnberg, 1898 - syn of: Enteroctopus megalocyathus (A.A. Gould, 1852) - (OCTOPODIDAE)
- patagonicus, Plagiodontes patagonicus (A.V.M.D. D'Orbigny, 1845) - (ODONTOSTOMIDAE)
- patagonicus, Pecten patagonicus (P.P. King, 1832) - syn of: Zygochlamys patagonica (King & W.J. Broderip, 1832) - (PECTINIDAE)
- patagonicus, Zygochlamys patagonicus (P.P. King, 1832) - syn of: Zygochlamys patagonica (King & W.J. Broderip, 1832) - (PECTINIDAE)
- patagonicus, Phaseolus patagonicus W.H. Dall, 1908 - syn of: Silicula patagonica (W.H. Dall, 1908) - (PHASEOLIDAE)
- patagonicus, Ancylus patagonicus W.A. Biese, 1948 - (PLANORBIDAE)
- patagonicus, Pleurobranchus patagonicus D'Orbigny, 1835 - syn of: Berthella patagonica (A.V.M.D. D'Orbigny, 1835) - (PLEUROBRANCHIDAE)
- patagonicus, Trochus patagonicus D'Orbigny, 1835 - syn of: Tegula patagonica (A.V.M.D. D'Orbigny, 1835) - (TROCHIDAE)
- patagonicus, Unio patagonicus D'Orbigny, 1835 - syn of: Diplodon chilensis patagonica (A.V.M.D. D'Orbigny, 1835) - (UNIONIDAE)
- patagonicus, Pitar patagonicus (A.V.M.D. D'Orbigny, 1842) - (VENERIDAE)
- patagonicus, Venus patagonicus D'Orbigny, 1842 - syn of: Pitar patagonicus (A.V.M.D. D'Orbigny, 1842) - (VENERIDAE)
- patagonicus dalli, Leiosolenus patagonicus dalli H.F.A. von Ihering, 1907 - syn of: Leiosolenus patagonicus (A.V.M.D. D'Orbigny, 1842) - (MYTILIDAE)
- patagonicus kelseyi, Leiosolenus patagonicus kelseyi L.G. Hertlein & A.M. Strong, 1946 - syn of: Lithophaga plumula (S.C.T. Hanley, 1843) - (MYTILIDAE)
- patagonicus magnus, Plagiodontes patagonicus magnus M.I. Hylton-Scott, 1951 - (ODONTOSTOMIDAE)
- patagonicus rubicunda, Anodontites patagonicus rubicunda A.E. Ortmann, 1921 - syn of: Anodontites trapezea (J.B. von Spix & J.A. Wagner, 1827) - (MYCETOPODIDAE)
- patagoniense, Protaconeceras patagoniense (J. Favre, 1908 †) - (OPPELIIDAE) (FOSSIL)
- patagoniensis, Fusinus patagoniensis Chiesa & Camacho, 2001 † - (FASCIOLARIIDAE) (FOSSIL)
- patagoniensis, Retispira patagoniensis Pinilla & Sabattini, 2013 † - (KNIGHTITIDAE) (FOSSIL)
- patagoniensis, Mangelia patagoniensis W.H. Dall, 1919 - (MANGELIIDAE)
- patagoniensis, Rhabdocolpus patagoniensis Ferrari, 2012 † - (PROCERITHIIDAE) (FOSSIL)
- patagoniensis, Rehmannia patagoniensis C.S. Weaver, 1931 † - (REINECKEIIDAE) (FOSSIL)
- patagoniensis, Struthiolarella patagoniensis Camacho & Zinsmeister, 1989 † - (STRUTHIOLARIIDAE) (FOSSIL)
- Patagonorbis, Genus Patagonorbis Rumi & Gutiérrez Gregoric, 2015 (GLACIDORBIDAE)
- pataka, Columbarium pataka P.A. Maxwell, 1978 † - (TURBINELLIDAE) (FOSSIL)
- patamakanthini, Cassis patamakanthini M. Parth, 2000 - (CASSIDAE)
- patamakanthini, Conus patamakanthini A. Delsaerdt, 1998 - syn of: Graphiconus australis (H.S. Holten, 1802) - (CONIDAE)
- patamakanthini, Surrepifungium patamakanthini E. Gittenberger & A. Gittenberger, 2005 - (EPITONIIDAE)
- patamakanthini, Haliotis ovina patamakanthini H. Dekker, Regter & A. Gras, 2001 - (HALIOTIDAE)
- patasensis, Neopetraeus patasensis (L. Pfeiffer, 1859) - (BULIMULIDAE)
- patasensis, Epiphragmophora patasensis (L. Pfeiffer, 1859) - (EPIPHRAGMOPHORIDAE)
- patavina, Bithynia patavina F.E. De Betta & L.L.G. de Mortillet, 1855 - syn of: Bithynia tentaculata (C. Linnaeus, 1758) - (BITHYNIIDAE)
- pataxo, Calliotropis pataxo R.S. Absalão, 2009 - (CALLIOTROPIDAE)
- patbaili, Indolyria patbaili (P. Bouchet, 1999) - (VOLUTIDAE)
- patbaili minifusca, Indolyria patbaili minifusca L. Bozzetti, 2014 - (VOLUTIDAE)
- patbaili nordica, Indolyria patbaili nordica L. Bozzetti, 2010 - (VOLUTIDAE)
- patbaili solangeae, Lyria patbaili solangeae L. Bozzetti, 2008 - syn of: Lyria solangeae L. Bozzetti, 2008 - (VOLUTIDAE)
- patburkeae, Smaragdia patburkeae Eichhorst, 2016 - (NERITIDAE)
- patchamensis, Trigonia patchamensis Fürsich & Heinze, 1998 † - (TRIGONIIDAE) (FOSSIL)
- patefactor, Witchellia patefactor Buckman † - (HAMMATOCERATIDAE) (FOSSIL)
- patella, Ceratites patella L. Waagen, 1895 † - (CERATITIDAE) (FOSSIL)
- patella, Novlepatella patella (E.L. Yochelson, 1960 †) - (DAMILINIDAE) (FOSSIL)
- patella, Platyconoceras patella P.A. Zhuravleva, 1972 † - syn of: Raphanites bogoslovskyi (P.A. Zhuravleva, 1972 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- patella, Callihoplites patella Spath † - (HOPLITIDAE) (FOSSIL)
- patella, Lepetopsis patella E.L. Yochelson, 1960 † - syn of: Novlepatella patella (E.L. Yochelson, 1960 †) - (LEPETOPSIDAE) (FOSSIL)
- Patella, Genus Patella C. Linnaeus, 1758 (PATELLIDAE)
- patella, Dinarites patella L. Waagen, 1895 † - (SIBIRITIDAE) (FOSSIL)
- patella, Sonninia patella (L. Waagen, 1867 †) - (SONNINIIDAE) (FOSSIL)
- patella, Sphaerium patella A.A. Gould, 1850 - (SPHAERIIDAE)
- Patellanax, syn of: Genus Scutellastra H. Adams & A. Adams, 1854 (PATELLIDAE)
- Patellapurpura, syn of: Genus Plicopurpura A.E.M. Cossmann, 1903 (MURICIDAE)
- patellaria, Brasilia patellaria (Buckman, 1906 †) - (GRAPHOCERATIDAE) (FOSSIL)
- patellaria, Apedogyria patellaria Buckman, 1906 † - syn of: Brasilia patellaria (Buckman, 1906 †) - (GRAPHOCERATIDAE) (FOSSIL)
- Patellaria, syn of: Genus Patella C. Linnaeus, 1758 (PATELLIDAE)
- patellaris, Anomia patellaris J.B.P.A. Lamarck, 1819 - syn of: Anomia ephippium C. Linnaeus, 1758 - (ANOMIIDAE)
- patellaris, Arcopagia patellaris (J.B.P.A. Lamarck, 1806 †) - (TELLINIDAE) (FOSSIL)
- Patellastra, syn of: Genus Patella C. Linnaeus, 1758 (PATELLIDAE)
- patellata, Xenophora patellata G.P. Deshayes, 1832 † - (XENOPHORIDAE) (FOSSIL)
- PATELLICONIDAE Frýda, 1998 † - Family (MOLLUSCA INCERTAE SEDIS-) (FOSSIL)
- Patelliconus, Genus Patelliconus Horný, 1961 † (PATELLICONIDAE) (FOSSIL)
- PATELLIDAE Rafinesque, 1815 - Family (GASTROPODA-PATELLOGASTROPODA [Subclass]-PATELLOIDEA [Superfamily])
- Patellidea, syn of: Genus Scutellastra H. Adams & A. Adams, 1854 (PATELLIDAE)
- patelliforme, Platyceras patelliforme Holzapfel, 1895 † - (PLATYCERATIDAE) (FOSSIL)
- patelliformis, Aldanella patelliformis Bokova, 1990 † - (ALDANELLIDAE) (FOSSIL)
- patelliformis, Monia patelliformis (C. Linnaeus, 1773) - (ANOMIIDAE)
- patelliformis, Archinacella patelliformis (J.W. Hall, 1847 †) - (ARCHINACELLIDAE) (FOSSIL)
- patelliformis, Haugia patelliformis Buckman, 1898 † - syn of: Haugia jugosa (J. de C. Sowerby, 1815 †) - (PHYMATOCERATIDAE) (FOSSIL)
- patelliformis, Anisomyon patelliformis F.B. Meek & Hayden, 1860 † - (SIPHONARIIDAE) (FOSSIL)
- Patellilabia, Genus Patellilabia Knight, 1945 † (KNIGHTITIDAE) (FOSSIL)
- Patellipurpura, syn of: Genus Plicopurpura A.E.M. Cossmann, 1903 (MURICIDAE)
- patellitheca, Chippewaella patellitheca Gunderson, 1993 † - (GASTROPODA INCERTAE SEDIS) (FOSSIL)
- PATELLOGASTROPODA (UNASSIGNED) - Family (GASTROPODA-PATELLOGASTROPODA [Subclass]) (FOSSIL)
- Patelloida, Genus Patelloida J.R.C. Quoy & J.P. Gaimard, 1834 (LOTTIIDAE)
- patelloida, Onchidella patelloida J.R.C. Quoy & J.P. Gaimard, 1832 - syn of: Onchidella nigricans (J.R.C. Quoy & J.P. Gaimard, 1832) - (ONCHIDIIDAE)
- patelloide, Onchidium patelloide J.R.C. Quoy & J.P. Gaimard, 1832 - syn of: Onchidella nigricans (J.R.C. Quoy & J.P. Gaimard, 1832) - (ONCHIDIIDAE)
- patelloide, Onchidella patelloide J.R.C. Quoy & J.P. Gaimard, 1832 - syn of: Onchidella nigricans (J.R.C. Quoy & J.P. Gaimard, 1832) - (ONCHIDIIDAE)
- Patelloidea, syn of: Genus Patelloida J.R.C. Quoy & J.P. Gaimard, 1834 (LOTTIIDAE)
- patelloides, Hipponix patelloides G.P. Deshayes, 1824 † - (HIPPONICIDAE) (FOSSIL)
- patelloides, Lanx patelloides (I. Lea, 1856) - (LYMNAEIDAE)
- patelloides, Unio patelloides I. Lea, 1860 - syn of: Rhipidodonta rhombea (J.B. von Spix & J.A. Wagner, 1827) - (UNIONIDAE)
- patelloides flexicostata, Hipponix patelloides flexicostata Klushnikov, 1958 † - (HIPPONICIDAE) (FOSSIL)
- Patellona, syn of: Genus Patella C. Linnaeus, 1758 (PATELLIDAE)
- Patelloplanorbis, Genus Patelloplanorbis B. Hubendick, 1957 (PLANORBIDAE)
- Patellopsis, syn of: Genus Siphonaria G.B. Sowerby, 1823 (SIPHONARIIDAE)
- Patellostium, Genus Patellostium Waagen, 1880 † (BUCANIIDAE) (FOSSIL)
- Patellus, syn of: Genus Patella C. Linnaeus, 1758 (PATELLIDAE)
- patens, Mantelliceras patens M. Collignon, 1964 † - syn of: Mantelliceras picteti A. Hyatt, 1903 † - (ACANTHOCERATIDAE) (FOSSIL)
- patens, Elaphroconcha patens (E.C. Von Martens, 1898) - (ARIOPHANTIDAE)
- patens, Bulimus patens J. Gassies, 1871 - syn of: Placostylus fibratus souvillei P.M.A. Morelet, 1857 - (BULIMULIDAE)
- patens, Conus patens G.B. III Sowerby, 1903 - syn of: Sciteconus gradatulus (H.C. Weinkauff, 1875) - (CONIDAE)
- patens, Cymatoceras patens (Kner, 1848 †) - (CYMATOCERATIDAE) (FOSSIL)
- patens, Discophyllites patens (Mojsisovics, 1873 †) - (DISCOPHYLLITIDAE) (FOSSIL)
- patens, Lytoceras patens Mojsisovics, 1873 † - syn of: Discophyllites patens (Mojsisovics, 1873 †) - (LYTOCERATIDAE) (FOSSIL)
- patens, Paratrophon patens (J.B. Hombron & C.H. Jacquinot, 1854) - (MURICIDAE)
- patens, Parawocklumeria patens Schindewolf, 1937 † - (PARAWOCKLUMERIIDAE) (FOSSIL)
- patens, Tylostoma patens (Binkhorst, 1861 †) - (TYLOSTOMATIDAE) (FOSSIL)
- patens, Vallonia patens (O.W.H. Reinhardt, 1883) - (VALLONIIDAE)
- patens, Vallonia patens I.M. Likharev & E.S. Rammelmeyer, 1952 - syn of: Punctum conspectum T.B. Bland, 1865 - (VALLONIIDAE)
- patens tralala, Vallonia patens tralala J. Gerber, 1996 - (VALLONIIDAE)
- patentissima, Oxyloma patentissima (K.T. Menke in L. Pfeiffer, 1853) - (SUCCINEIDAE)
- pater, Turbonitella pater J. Perner, 1903 † - syn of: Nonorios pater (J. Perner, 1903 †) - (NERITOPSIDAE) (FOSSIL)
- pater, Nonorios pater (J. Perner, 1903 †) - (PLATYCERATIDAE) (FOSSIL)
- patera, Cellana patera P.F. Röding, 1798 - syn of: Cellana testudinaria (C. Linnaeus, 1758) - (NACELLIDAE)
- patera, Patella patera P.F. Röding, 1798 - syn of: Cellana testudinaria (C. Linnaeus, 1758) - (PATELLIDAE)
- Patera, Subgenus Mesodon (Patera) J.A. Albers, 1850 (POLYGYRIDAE)
- patera, Timoclea patera Soregnfrei, 1958 † - (VENERIDAE) (FOSSIL)
- pateraeformis, Euryptychites pateraeformis (Voronets, 1962 †) - (POLYPTYCHITIDAE) (FOSSIL)
- pateriformis, Pseudomalaxis pateriformis L.W. Stephenson, 1955 † - (ARCHITECTONICIDAE) (FOSSIL)
- pateriforrnis, Pseudomalaxis pateriforrnis L.W. Stephenson, 1955 † - (ARCHITECTONICIDAE) (FOSSIL)
- paterna, Chondrothyra subegregia paterna C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- paternoi, Sicilioceras paternoi (C. Gemmellaro, 1889 †) - (BACTRITIDAE) (FOSSIL)
- paternoi, Orthoceras paternoi C. Gemmellaro, 1889 † - syn of: Sicilioceras paternoi (C. Gemmellaro, 1889 †) - (ORTHOCERATIDAE) (FOSSIL)
- patersoni, Bellerophon patersoni J.W. Hall, 1862 † - (BELLEROPHONTIDAE) (FOSSIL)
- patersoni, Goniatites patersoni J.W. Hall, 1860 † - syn of: Manticoceras sinuosum (J.W. Hall, 1843 †) - (GONIATITIDAE) (FOSSIL)
- patescens, Morphoceras patescens (Buckman, 1922 †) - (MORPHOCERATIDAE) (FOSSIL)
- patglicksteinae, Gradiconus patglicksteinae (E.J. Petuch, 1987) - (CONIDAE)
- patheonensis, Anadara patheonensis E.M. Spieker, 1922 - syn of: Anadara nux (G.B. I Sowerby, 1833) - (ARCIDAE)
- pathetica, Helix pathetica A. Mousson, 1854 - (HELICIDAE)
- patholatus, Gibbula patholatus L.W. Dillwyn, 1817 - syn of: Gibbula tumida (G. Montagu, 1803) - (TROCHIDAE)
- pathopsis, Sandalops pathopsis S.S. Berry, 1920 - syn of: Sandalops melancholicus C. Chun, 1906 - (CRANCHIIDAE)
- pathutchingsae, Setocallosa pathutchingsae F. Köhler & F. Criscione, 2015 - (CAMAENIDAE)
- patibulum, Perna patibulum L.A. Reeve, 1858 - syn of: Isognomon isognomum (C. Linnaeus, 1758) - (MYTILIDAE)
- patibulum, Isognomon patibulum L.A. Reeve, 1858 - syn of: Isognomon isognomum (C. Linnaeus, 1758) - (PTERIIDAE)
- patiens, Clypeomorus patiens C.É. Bayle, 1880 - syn of: Clypeomorus brevis (J.R.C. Quoy & J.P. Gaimard, 1834) - (CERITHIIDAE)
- patina, Acmaea patina J.F. von Eschscholtz - syn of: Lottia scutum (J. Rathke, 1833) - (ACMAEIDAE)
- patina, Helix patina C.B. Adams, 1849 - syn of: Pleurodonte lucerna (O.F. Müller, 1774) - (HELICIDAE)
- patina, Lottia patina (J. Rathke, 1833) - (LOTTIIDAE)
- Patina, syn of: Genus Patella C. Linnaeus, 1758 (PATELLIDAE)
- patina, Indosphinctes patina (M. von Neumayr, 1870 †) - (PERISPHINCTIDAE) (FOSSIL)
- patina, Elysia patina Ev. Marcus, 1980 - (PLAKOBRANCHIDAE)
- patina, Pleurodonte lucerna patina (O.F. Müller, 1774) - (PLEURODONTIDAE)
- patina ochracea, Acmaea patina ochracea W.H. Dall, 1871 - syn of: Lottia scutum (J. Rathke, 1833) - (ACMAEIDAE)
- patina ochracea, Collisella patina ochracea W.H. Dall, 1871 - syn of: Lottia instabilis (A.A. Gould, 1846) - (LOTTIIDAE)
- patinaria, Haliotinella patinaria R.J.L. Guppy, 1876 - (NATICIDAE)
- Patinastra, Subgenus Ansates (Patinastra) K.H.J. Thiele in F.H. Troschel, 1891 (PATELLIDAE)
- Patinella, syn of: Subgenus Nacella (Patinigera) Dall, 1905 † (NACELLIDAE) (FOSSIL)
- Patinella, syn of: Genus Nacella H.C.F. Schumacher, 1817 (NACELLIDAE)
- Patinigera, Subgenus Nacella (Patinigera) Dall, 1905 † (NACELLIDAE) (FOSSIL)
- Patinopecten, Genus Patinopecten W.H. Dall, 1898 (PECTINIDAE)
- patnuttalli, Nassarius patnuttalli B.M. Landau, C.M. da Silva & C. Gili, 2010 - (NASSARIIDAE)
- patonga, Liotella patonga C.F. Laseron, 1954 - syn of: Liotella annulata (J.E. Tenison-Woods, 1874) - (SKENEIDAE)
- patonganus, Conus patonganus A.J. Da Motta, 1982 - syn of: Darioconus omaria (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- patrae, Theodoxus patrae D. Esu & O. Girotti, 2015 † - (NERITIDAE) (FOSSIL)
- patrespatriae, Cypraea patrespatriae C.J. Maury, 1917 † - (CYPRAEIDAE) (FOSSIL)
- patria, Mesoginella patria B.C. Cotton, 1949 - syn of: Mesoginella inconspicua (G.B. II Sowerby, 1846) - (MARGINELLIDAE)
- patriachalis, Tylomelania patriachalis (P.B. Sarasin & K.F. Sarasin, 1898) - (PACHYCHILIDAE)
- patriachalis, Palaeomelania patriachalis P.B. Sarasin & K.F. Sarasin, 1898 - syn of: Tylomelania patriachalis (P.B. Sarasin & K.F. Sarasin, 1898) - (THIARIDAE)
- patriae, Pecten patriae M. Doello-Jurado, 1918 - syn of: Zygochlamys patagonica (King & W.J. Broderip, 1832) - (PECTINIDAE)
- patriae, Solariella patriae A. Carcelles, 1953 - (SOLARIELLIDAE)
- patriarcha, Anadara patriarcha Anderson, 1929 † - (ARCIDAE) (FOSSIL)
- patriarcha, Bulimus patriarcha W.G. Binney, 1858 - syn of: Rabdotus schiedeanus (L. Pfeiffer, 1841) - (BULIMULIDAE)
- patriarcha, Patella patriarcha H.A. Pilsbry, 1891 - syn of: Scutellastra tabularis (C.F.F. von Krauss, 1848) - (PATELLIDAE)
- patriarchale, Pusia patriarchale J.F. Gmelin, 1791 - syn of: Orphanopusia patriarchalis (J.F. Gmelin, 1791) - (COSTELLARIIDAE)
- patriarchalis, Arca patriarchalis P.F. Röding, 1798 - (ARCIDAE)
- patriarchalis, Orphanopusia patriarchalis (J.F. Gmelin, 1791) - (COSTELLARIIDAE)
- patriarchalis, Myalinella patriarchalis (L. Waagen, 1881 †) - (MYALINIDAE) (FOSSIL)
- patriarchalis, Mytilus patriarchalis L. Waagen, 1881 † - syn of: Myalinella patriarchalis (L. Waagen, 1881 †) - (MYTILIDAE) (FOSSIL)
- patriarchalis, Tylomelania patriarchalis (P.B. Sarasin & K.F. Sarasin, 1897) - (PACHYCHILIDAE)
- patriceae, Lamniconus patriceae E.J. Petuch & B.W. Myers, 2014 - (CONIDAE)
- patricebaili, Fulgoraria patricebaili N.N. Thach, 2017 - (VOLUTIDAE)
- patricia, Anadara patricia G.B. Sowerby, 1849 † - (ARCIDAE) (FOSSIL)
- patricia, Microdrillia patricia (J.C. Melvill, 1904) - (BORSONIIDAE)
- patricia, Zachrysia torrei patricia H.A. Pilsbry, 1928 - (CAMAENIDAE)
- patricia, Microsveltia patricia (K.H.J. Thiele, 1925) - (CANCELLARIIDAE)
- patricia, Chondrothyra subegregia patricia C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- patricia, Odostomella patricia (H.A. Pilsbry, 1918) - (PYRAMIDELLIDAE)
- patricia, Turbonilla patricia K.H.J. Thiele, 1925 - (PYRAMIDELLIDAE)
- patricia, Odostomia patricia H.A. Pilsbry, 1918 - syn of: Odostomella patricia (H.A. Pilsbry, 1918) - (PYRAMIDELLIDAE)
- patricia, Tegula patricia R.A. Philippi, 1851 - syn of: Monilea patricia (R.A. Philippi, 1851) - (TEGULIDAE)
- patricia, Triphora patricia K.H.J. Thiele, 1925 - (TRIPHORIDAE)
- patricia, Monilea patricia (R.A. Philippi, 1851) - (TROCHIDAE)
- patricia rhodocephala, Odostomella patricia rhodocephala H.A. Pilsbry, 1918 - syn of: Odostomella opaca (C. Hedley, 1906) - (PYRAMIDELLIDAE)
- patricia rosa, Odostomella patricia rosa H.A. Pilsbry, 1918 - syn of: Odostomella opaca (C. Hedley, 1906) - (PYRAMIDELLIDAE)
- patriciae, Drillia patriciae F.R. Bernard & K. Nicolay, 1984 - (DRILLIIDAE)
- patriciae, Fusinus patriciae P. Russo & Olivieri in P. Russo, 2013 - (FASCIOLARIIDAE)
- patriciae, Phenacovolva patriciae F. Nolf, 2008 - (OVULIDAE)
- patriciae, Striatoamussium patriciae (Poulton, 1991 †) - (PROPEAMUSSIIDAE) (FOSSIL)
- patriciaensis, Hormotoma patriciaensis Parks, 1915 † - (MURCHISONIIDAE) (FOSSIL)
- patricii, Potamides patricii (Vasseur, 1881 †) - (POTAMIDIDAE) (FOSSIL)
- patricioi, Cochliolepis patricioi F. Rubio, E. Rolán & Y.C. Lee, 2011 - (TORNIDAE)
- patricius, Bulimus patricius L.A. Reeve, 1849 - syn of: Drymaeus lilacinus (L.A. Reeve, 1849) - (BULIMULIDAE)
- patricius, Pyruconus patricius (R.B. Hinds, 1843) - (CONIDAE)
- patricius, Nassarius patricius (K.H.J. Thiele, 1925) - (NASSARIIDAE)
- patrickae, Carunculina patrickae H.W. Bates, 1966 - syn of: Toxolasma pullus T.A. Conrad, 1838 - (UNIONIDAE)
- patrickensis, Powelliphanta patrickensis (A.W.B. Powell, 1949) - (RHYTIDIDAE)
- patrickensis, Powellyphanta patrickensis A.W.B. Powell, 1949 - syn of: Powelliphanta patrickensis (A.W.B. Powell, 1949) - (RHYTIDIDAE)
- patricki, Mitrella patricki L. Bozzetti, 2006 - (COLUMBELLIDAE)
- patricki, Costasiella patricki E. Espinoza, DuPont & Valdés, 2014 - (COSTASIELLIDAE)
- patricki, Dendronotus patricki C.C. Stout, N.G. Wilson & Á. Valdés, 2011 - (DENDRONOTIDAE)
- patricki, Shasticrioceras patricki C.E. Murphy, 1975 † - (MEGACRIOCERATIDAE) (FOSSIL)
- patricknuttalli, Neritina patricknuttalli Wesselingh, 2003 † - (NERITIDAE) (FOSSIL)
- patris, Cipangopaludina patris (W. Kobelt, 1909) - (VIVIPARIDAE)
- patrisnemethi, Illunellaria patrisnemethi L. Németh & M. Szekeres, 2004 - (CLAUSILIIDAE)
- patriziae, Discodoris patriziae A. Perrone, 1991 - (DISCODORIDIDAE)
- Patro, Genus Patro J.E. Gray, 1850 (ANOMIIDAE)
- Patrocardia, Genus Patrocardia Fischer, 1887 † (LUNULACARDIIDAE) (FOSSIL)
- patronus, Spyroceras patronus (Barrande, 1866 †) - (SPYROCERATIDAE) (FOSSIL)
- Patros, syn of: Genus Patro J.E. Gray, 1850 (ANOMIIDAE)
- Patrubella, Genus Patrubella Iredale, 1938 (CAMAENIDAE)
- Patrubelle, syn of: Genus Austrochloritis H.A. Pilsbry, 1891 (CAMAENIDAE)
- patruelinum, Loxocardium patruelinum (G.P. Deshayes, 1858 †) - (CARDIIDAE) (FOSSIL)
- patruelis, Satsuma patruelis A. Adams, 1868 - (CAMAENIDAE)
- patruelis, Cupedora patruelis (A. Adams & G.F. Angas, 1864) - (CAMAENIDAE)
- patruelis, Paradrillia patruelis (E.A. Smith, 1875) - (HORAICLAVIDAE)
- patruelis, Coralliophila patruelis (E.A. Smith, 1890) - (MURICIDAE)
- patruelis, Turbonilla patruelis J.C. Melvill, 1918 - (PYRAMIDELLIDAE)
- patruelis, Tornus patruelis A. Adams, 1861 - (TORNIDAE)
- patruelis, Liocallonia patruelis (R. Arango, 1876) - (UROCOPTIDAE)
- patruelis, Metamelon patruelis C.R. Laws, 1932 † - (VOLUTIDAE) (FOSSIL)
- patruelis leonensis, Liocallonia patruelis leonensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- patruelis soroaensis, Liocallonia patruelis soroaensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- patruelis sotonensis, Liocallonia patruelis sotonensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- patruliusi, Pseudocatillus patruliusi (Papaianopol, 1992 †) - (CARDIIDAE) (FOSSIL)
- Patruliusiceras, Genus Patruliusiceras Avram , 1978 † (BARREMITIDAE) (FOSSIL)
- patruum, Funiferites patruum (K.E.I. von Eichwald †) - (CARDIOCERATIDAE) (FOSSIL)
- patsaligensis, Pleurobema patsaligensis C.T. Simpson, 1900 - syn of: Pleurobema strodeanum B.H. Wright, 1898 - (UNIONIDAE)
- patstreamae, Leptoconus patstreamae E.J. Petuch, 1994 - syn of: Conasprella delessertii (C.A. Récluz, 1843) - (CONIDAE)
- pattalus, Metazaptyx pattalus (H.A. Pilsbry, 1905) - (CLAUSILIIDAE)
- pattalus, Pyramidella pattalus (H.A. Pilsbry, 1906) - (PYRAMIDELLIDAE)
- pattalus, Subulona pattalus H.A. Pilsbry, 1906 - (SUBULINIDAE)
- pattalus miyakoensis, Metazaptyx pattalus miyakoensis (H.A. Pilsbry, 1905) - (CLAUSILIIDAE)
- pattani, Gymnodoris pattani C.K. Swennen, 1996 - (GYMNODORIDIDAE)
- pattedoiei, Transovula pattedoiei Dolin & Aguerre, 2016 † - (OVULIDAE) (FOSSIL)
- pattersonae, Omalonyx pattersonae S. Tillier, 1981 - (SUCCINEIDAE)
- pattersoni, Pomacea pattersoni (K.J. Boss & J.J. Parodíz, 1977) - (AMPULLARIIDAE)
- pattersoni, Effusa pattersoni K.J. Boss & J.J. Parodíz, 1977 - syn of: Pomacea pattersoni (K.J. Boss & J.J. Parodíz, 1977) - (AMPULLARIIDAE)
- pattersoni, Mesoginella pattersoni B.C. Cotton, 1944 - syn of: Mesoginella turbinata (G.B. II Sowerby, 1846) - (MARGINELLIDAE)
- pattersoni, Oliva pattersoni W.J. Clench, 1945 - syn of: Oliva bifasciata pattersoni W.J. Clench, 1945 - (OLIVIDAE)
- pattersoni, Oliva bifasciata pattersoni W.J. Clench, 1945 - (OLIVIDAE)
- pattersoni, Pteria pattersoni (Tate) † - (PTERIIDAE) (FOSSIL)
- pattersoni styliophylus, Manticoceras pattersoni styliophylus A.H. Clarke, 1899 † - syn of: Koenenites styliophylus (A.H. Clarke, 1899 †) - (GEPHUROCERATIDAE) (FOSSIL)
- pattersonia, Lyria pattersonia (G. Perry, 1811) - (VOLUTIDAE)
- pattersonia, Voluta pattersonia G. Perry, 1811 - syn of: Lyria pattersonia (G. Perry, 1811) - (VOLUTIDAE)
- pattisoni, Clymenia pattisoni F. McCoy, 1851 † - syn of: Platyclymenia pattisoni (F. McCoy, 1851 †) - (CLYMENIIDAE) (FOSSIL)
- pattisoni, Kosmoclymenia pattisoni Selwood, 1960 † - (KOSMOCLYMENIIDAE) (FOSSIL)
- pattisoni, Mesoginella pattisoni B.C. Cotton, 1944 - syn of: Mesoginella turbinata (G.B. II Sowerby, 1846) - (MARGINELLIDAE)
- pattisoni, Marginella pattisoni B.C. Cotton, 1944 - syn of: Mesoginella turbinata (G.B. II Sowerby, 1846) - (MARGINELLIDAE)
- pattisoni, Platyclymenia pattisoni (F. McCoy, 1851 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- pattoni, Pseudopulchellia pattoni Imlay, 1961 † - (HOPLITIDAE) (FOSSIL)
- Pattyclaya, Genus Pattyclaya E.G.G. Marcus, 1982 (PLAKOBRANCHIDAE)
- patula, Emmericia patula (L. Brumati, 1838) - (AMNICOLIDAE)
- patula, Amphibulima patula (J.G. Bruguière, 1792) - (AMPHIBULIMIDAE)
- patula, Pomacea patula (L.A. Reeve, 1856) - (AMPULLARIIDAE)
- patula, Globularia patula (J.B.P.A. Lamarck, 1804 †) - (AMPULLINIDAE) (FOSSIL)
- patula, Baryspira patula (P. Doderlein in L.M.D. Bellardi, 1882 †) - (ANCILLARIIDAE) (FOSSIL)
- patula, Lispodesthes patula L.W. Stephenson, 1952 † - (APORRHAIDAE) (FOSSIL)
- patula, Torinia patula (J.B.P.A. Lamarck, 1804 †) - (ARCHITECTONICIDAE) (FOSSIL)
- patula, Bulla patula T. Pennant, 1777 - syn of: Simnia patula (T. Pennant, 1777) - (BULLIDAE)
- patula, Calliotropis patula (E.C. Von Martens, 1904) - (CALLIOTROPIDAE)
- patula, Crepidula patula G.P. Deshayes, 1830 - syn of: Crepipatella peruviana (J.B.P.A. Lamarck, 1822) - (CALYPTRAEIDAE)
- patula, Regiclausilia patula H. Nordsieck, 1981 † - (CLAUSILIIDAE) (FOSSIL)
- patula, Spirina patula J. Perner, 1903 † - (CRASPEDOSTOMATIDAE) (FOSSIL)
- patula, Cymaclymenia patula Czarnocki, 1989 † - syn of: Cymaclymenia cordata Wedekind, 1914 † - (CYMACLYMENIIDAE) (FOSSIL)
- patula, Palaina patula C.G. Semper, 1865 - (DIPLOMMATINIDAE)
- Patula, syn of: Genus Discus L.I. Fitzinger, 1833 (DISCIDAE)
- patula, Marinula patula R.T. Lowe, 1835 - (ELLOBIIDAE)
- patula, Eulima patula W.H. Dall & C.T. Simpson, 1901 - (EULIMIDAE)
- patula, Emarginula patula B.C. Cotton, 1930 - (FISSURELLIDAE)
- patula, Euryzone patula E.F.R.K. Koken & J. Perner, 1925 † - (GOSSELETINIDAE) (FOSSIL)
- patula, Ludwigia patula (Buckman †) - (GRAPHOCERATIDAE) (FOSSIL)
- patula, Helicotoma patula Lamont, 1946 † - (HELICOTOMIDAE) (FOSSIL)
- patula, Janthina patula R.A. Philippi, 1844 - syn of: Janthina pallida W. Thompson, 1840 - (JANTHINIDAE)
- patula, Peasiella patula D.G. Reid & Y.M. Mak, 1998 - (LITTORINIDAE)
- patula, Littorina patula A.A. Gould, 1849 - syn of: Littorina keenae J.P. Rosewater, 1978 - (LITTORINIDAE)
- patula, Lacuna patula C. Thorpe, 1844 - syn of: Lacuna pallidula (E.M. Da Costa, 1778) - (LITTORINIDAE)
- patula, Radix patula E.M. Da Costa, 1778 - syn of: Radix labiata (E.A. Rossmässler, 1835) - (LYMNAEIDAE)
- patula, Mangelia patula É.A.A. Locard, 1891 - syn of: Mangelia costata (T. Pennant, 1777) - (MANGELIIDAE)
- patula, Leptogyra patula B.A. Marshall, 1988 - (MELANODRYMIIDAE)
- patula, Melongena patula W.J. Broderip & Sowerby, 1829 - (MELONGENIDAE)
- patula, Mitra patula L.A. Reeve, 1845 - syn of: Vexillum patulum (L.A. Reeve, 1845) - (MITRIDAE)
- patula, Plicopurpura patula (C. Linnaeus, 1758) - (MURICIDAE)
- patula, Coralliophila patula F. Settepassi, 1977 - syn of: Coralliophila brevis (H.M.D. de Blainville, 1832) - (MURICIDAE)
- patula, Bullia patula G.P. Deshayes, 1835 † - (NASSARIIDAE) (FOSSIL)
- patula, Natica patula G.B. I Sowerby, 1841 - syn of: Hypterita helicoides (J.E. Gray, 1825) - (NATICIDAE)
- patula, Nerita patula C.A. Récluz, 1841 - (NERITIDAE)
- patula, Oliva patula G.B. I Sowerby, 1825 - syn of: Olivancillaria auricularia (J.B.P.A. Lamarck, 1811) - (OLIVIDAE)
- Patula, syn of: Genus Oreohelix H.A. Pilsbry, 1904 (OREOHELICIDAE)
- patula, Simnia patula (T. Pennant, 1777) - (OVULIDAE)
- patula, Frenamya patula (R. Tate, 1889) - (PANDORIDAE)
- patula, Siliqua patula (G. Dixon, 1789) - (PHARIDAE)
- patula, Pholas patula A.A. Gould, 1850 - syn of: Barnea dilatata (L.F.A. Souleyet, 1843) - (PHOLADIDAE)
- patula, Barnea patula A.A. Gould, 1850 - syn of: Barnea dilatata (L.F.A. Souleyet, 1843) - (PHOLADIDAE)
- patula, Holandriana patula (L.M.D. Bellardi & O.G. Michelotti, 1841 †) - (PLEUROCERIDAE) (FOSSIL)
- patula, Daphnella patula (L.A. Reeve, 1845) - (RAPHITOMIDAE)
- patula, Rhytida patula F.W. Hutton, 1883 - (RHYTIDIDAE)
- patula, Onoba patula A. Adams, 1863 - syn of: Japanonoba patula (A. Adams, 1863) - (RISSOIDAE)
- patula, Quinnia patula (B.A. Marshall, 1983) - (SEGUENZIIDAE)
- patula, Succinea patula J.L.H. Michelin - (SUCCINEIDAE)
- patula, Tellina patula L.W. Stephenson, 1941 † - (TELLINIDAE) (FOSSIL)
- patula, Melania patula L.M.D. Bellardi & O.G. Michelotti, 1841 † - syn of: Holandriana patula (L.M.D. Bellardi & O.G. Michelotti, 1841 †) - (THIARIDAE) (FOSSIL)
- patula, Fossarina patula (A. Adams & G.F. Angas, 1864) - (TROCHIDAE)
- patula, Gibbula zonata patula B.F. Kensley & Pether, 1986 - (TROCHIDAE)
- patula, Japanonoba patula (A. Adams, 1863) - (VANIKORIDAE)
- patula catamacensis, Ampullaria patula catamacensis H.B. Baker, 1922 - syn of: Pomacea catamarcensis (G.B. III Sowerby, 1875) - (AMPULLARIIDAE)
- patula catemacensis, Pomacea patula catemacensis (H.B. Baker, 1922) - (AMPULLARIIDAE)
- patula dominicensis, Amphibulima patula dominicensis H.A. Pilsbry, 1899 - (AMPHIBULIMIDAE)
- patula oregonia, Siliqua patula oregonia W.H. Dall, 1900 - syn of: Siliqua alta (W.J. Broderip & G.B. I Sowerby, 1829) - (PHARIDAE)
- patula pansa, Plicopurpura patula pansa A.A. Gould, 1853 - syn of: Plicopurpura pansa (A.A. Gould, 1853) - (MURICIDAE)
- patula propatula, Holandriana patula propatula (F. Sacco, 1886 †) - (PLEUROCERIDAE) (FOSSIL)
- patula subovata, Baryspira patula subovata L. Foresti, 1897 † - syn of: Baryspira patula (P. Doderlein in L.M.D. Bellardi, 1882 †) - (ANCILLARIIDAE) (FOSSIL)
- patula taurostriata, Holandriana patula taurostriata (F. Sacco, 1895 †) - (PLEUROCERIDAE) (FOSSIL)
- patula taurostriata, Balanocochlis patula taurostriata F. Sacco, 1895 † - syn of: Holandriana patula taurostriata (F. Sacco, 1895 †) - (THIARIDAE) (FOSSIL)
- patula taurostricta, Holandriana patula taurostricta F. Sacco, 1895 † - syn of: Holandriana patula taurostriata (F. Sacco, 1895 †) - (PLEUROCERIDAE) (FOSSIL)
- patulaeformis, Choanomphalus patulaeformis W.A. Lindholm, 1909 - (PLANORBIDAE)
- Patularia, syn of: Genus Discus L.I. Fitzinger, 1833 (DISCIDAE)
- Patularia, syn of: Genus Anodontites J.G. Bruguière, 1792 (MYCETOPODIDAE)
- Patulastra, syn of: Genus Punctum E.S. Morse, 1864 (PUNCTIDAE)
- Patulaxis, syn of: Subgenus Torinia (Climacopoma) Fischer, 1885 † (ARCHITECTONICIDAE) (FOSSIL)
- Patulaxis, syn of: Subgenus Torinia (Climacopoma) Fischer, 1885 † (ARCHITECTONICIDAE) (FOSSIL)
- Patuliana, syn of: Subgenus Cochlostoma (Turritus) C.A. Westerlund, 1883 (COCHLOSTOMATIDAE)
- PATULIDAE - syn of Family: DISCIDAE
- patuliformis, Eostrobilops patuliformis (Sacco, 1886) † - (STROBILOPSIDAE) (FOSSIL)
- Patulizonites, Subgenus Grandipatula (Patulizonites) Pfeffer, 1929 † (GRANDIPATULIDAE) (FOSSIL)
- patuloides, Globularia patuloides A.E.M. Cossmann & G. Pissarro, 1902 † - (AMPULLINIDAE) (FOSSIL)
- patuloides, Zonitoides patuloides H.A. Pilsbry, 1895 - (GASTRODONTIDAE)
- Patulopsis, syn of: Genus Suteria H.A. Pilsbry, 1892 (CHAROPIDAE)
- Patulopsis, Genus Patulopsis H. Strebel & G.J. Pfeffer, 1880 (ZONITIDAE)
- patulosa, Sigapatella patulosa Powell & J.A. Bartrum, 1929 † - (CALYPTRAEIDAE) (FOSSIL)
- patulum, Climacopoma patulum (J.B.P.A. Lamarck, 1804 †) - (ARCHITECTONICIDAE) (FOSSIL)
- patulum, Buccinum patulum C. Linnaeus, 1758 - syn of: Plicopurpura patula (C. Linnaeus, 1758) - (BUCCINIDAE)
- patulum, Buccinum cyaneum patulum J.G. Bruguière, 1792 - (BUCCINIDAE)
- patulum, Nemocardium patulum (F.W. Hutton 1873 †) - (CARDIIDAE) (FOSSIL)
- patulum, Cerithium patulum G.B. II Sowerby, 1855 - syn of: Clypeomorus pellucida (J.B. Hombron & C.H. Jacquinot, 1852) - (CERITHIIDAE)
- patulum, Cochlostoma patulum (J.P.R. Draparnaud, 1801) - (COCHLOSTOMATIDAE)
- patulum, Vexillum patulum (L.A. Reeve, 1845) - (COSTELLARIIDAE)
- patulum, Scutus patulum A.E.M. Cossmann, 1903 † - (FISSURELLIDAE) (FOSSIL)
- patulum, Knightoceras patulum Unklesbay, 1962 † - (KONINCKIOCERATIDAE) (FOSSIL)
- patulum, Sinum patulum (J.P.S. Grateloup, 1847 †) - (NATICIDAE) (FOSSIL)
- patulum, Richardsonoceras patulum (Barrande, 1866 †) - (ONCOCERATIDAE) (FOSSIL)
- patulum, Cyrtoceras patulum Barrande, 1866 † - syn of: Richardsonoceras patulum (Barrande, 1866 †) - (ONCOCERIDA (unassigned)) (FOSSIL)
- patulum, Cymbium patulum (W.J. Broderip, 1830) - (VOLUTIDAE)
- patulum depauperata, Cerithium patulum depauperata P. Dautzenberg & H. Fischer, 1905 - syn of: Clypeomorus pellucida (J.B. Hombron & C.H. Jacquinot, 1852) - (CERITHIIDAE)
- patulum depauperata, Clypeomorus patulum depauperata P. Dautzenberg & H. Fischer, 1905 - syn of: Clypeomorus pellucida (J.B. Hombron & C.H. Jacquinot, 1852) - (CERITHIIDAE)
- patulum fontqueri, Cochlostoma patulum fontqueri (F. Haas, 1924) - (COCHLOSTOMATIDAE)
- patulum merula, Vexillum patulum merula G.B. III Sowerby, 1889 - (COSTELLARIIDAE)
- patulum simrothi, Cochlostoma patulum simrothi (C. Pollonera & E. Caziot, 1908) - (COCHLOSTOMATIDAE)
- patulus, Bellerophon patulus J.W. Hall, 1843 † - syn of: Ptomatis patulus (J.W. Hall, 1843 †) - (BELLEROPHONTIDAE) (FOSSIL)
- patulus, Capulus patulus G.P. Deshayes, 1861 † - (CAPULIDAE) (FOSSIL)
- patulus, Allodiscus patulus B.A. Marshall & G.M. Barker, 2008 - (CHAROPIDAE)
- patulus, Chiton patulus G.B. I Sowerby, 1840 - syn of: Chiton stokesii W.J. Broderip in W.J. Broderip & G.B. I Sowerby, 1832 - (CHITONIDAE)
- patulus, Discus patulus (G.P. Deshayes, 1830) - (DISCIDAE)
- patulus, Melampus patulus R.T. Lowe, 1832 - syn of: Melampus luteus (J.R.C. Quoy & J.P. Gaimard, 1832) - (ELLOBIIDAE)
- patulus, Euomphalus patulus E.F.R.K. Koken & J. Perner, 1925 † - (EUOMPHALIDAE) (FOSSIL)
- patulus, Pectunculus patulus T.A. Conrad † - syn of: Lucinoma acutilineata (T.A. Conrad, 1849 †) - (GLYCYMERIDIDAE) (FOSSIL)
- patulus, Gorgoleptis patulus J.H. McLean, 1988 - (LEPETODRILIDAE)
- patulus, Ruanites patulus (Ruan, 1981 †) - (MIMOSPHINCTIDAE) (FOSSIL)
- patulus, Modiolodon patulus Ulrich, 1894 † - (MODIOMORPHIDAE) (FOSSIL)
- patulus, Xenocyclus patulus F.G. Thompson, 1969 - (NEOCYCLOTIDAE)
- patulus, Ptomatis patulus (J.W. Hall, 1843 †) - (PLECTONOTIDAE) (FOSSIL)
- patulus, Scaphites patulus Cobban, 1951 † - (SCAPHITIDAE) (FOSSIL)
- patulus, Paroxystele patulus (G.B. Brocchi 1814 †) - (TROCHIDAE) (FOSSIL)
- patulus, Unio patulus I. Lea, 1829 - syn of: Pleurobema clava J.B.P.A. Lamarck, 1819 - (UNIONIDAE)
- paturattensis, Popanites paturattensis Greppin, 1870 † - (OPPELIIDAE) (FOSSIL)
- paturattensis, Otosphinctes paturattensis (Loriol, 1901 †) - (PERISPHINCTIDAE) (FOSSIL)
- patutahiensis, Melanella patutahiensis J. Marwick, 1931 † - (EULIMIDAE) (FOSSIL)
- patuxentensis, Neptunea patuxentensis Martin, 1904 † - (BUCCINIDAE) (FOSSIL)
- patuxentensis, Chrysodomus patuxentensis Martin, 1904 † - syn of: Neptunea patuxentensis Martin, 1904 † - (BUCCINIDAE) (FOSSIL)
- patuxentensis, Buccinofusus patuxentensis E.J. Petuch, 1993 † - (FASCIOLARIIDAE) (FOSSIL)
- patuxentensis, Conradconfusus patuxentensis E.J. Petuch, 1993 † - syn of: Buccinofusus patuxentensis E.J. Petuch, 1993 † - (FASCIOLARIIDAE) (FOSSIL)
- patuxentia, Marianarona patuxentia (Martin, 1904 †) - (CANCELLARIIDAE) (FOSSIL)
- patuxentia, Ecphora patuxentia E.J. Petuch, 1988 † - (MURICIDAE) (FOSSIL)
- patuxentia, Sediliopsis patuxentia (Martin, 1904 †) - (PSEUDOMELATOMIDAE) (FOSSIL)
- patuxentia, Sportella patuxentia L.C. Glenn, 1904 † - (SPORTELLIDAE) (FOSSIL)
- patuxentia, Laevihastula patuxentia (Martin, 1904 †) - (TEREBRIDAE) (FOSSIL)
- patuxentium, Caecum patuxentium Martin, 1904 † - (CAECIDAE) (FOSSIL)
- patuxentium, Cerastoderma patuxentium L.C. Glenn, 1904 † - (CARDIIDAE) (FOSSIL)
- Patuxentrophon, Genus Patuxentrophon Petuch, 1993 † (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- patwrightae, Sitala patwrightae K.C. Emberton, 1994 - (ARIOPHANTIDAE)
- patzcuarensis, Tryonia patzcuarensis H.A. Pilsbry, 1891 - syn of: Pyrgulopsis patzcuarensis (H.A. Pilsbry, 1891) - (COCHLIOPIDAE)
- patzcuarensis, Pyrgulopsis patzcuarensis (H.A. Pilsbry, 1891) - (HYDROBIIDAE)
- patzcuarensis, Haitia patzcuarensis (H.A. Pilsbry, 1891) - (PHYSIDAE)
- patzcuarensis, Versutaxis patzcuarensis (H.A. Pilsbry, 1899) - (SPIRAXIDAE)
- patzcuarensis, Valvata patzcuarensis H.A. Pilsbry, 1899 - (VALVATIDAE)
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