- pesa, Cerithiopsis pesa W.H. Dall & P. Bartsch, 1911 - (CERITHIOPSIDAE)
- pesa, Turbonilla pesa W.H. Dall & P. Bartsch, 1910 - (PYRAMIDELLIDAE)
- pesae, Prososthenia pesae D. Esu & O. Girotti, 2016 † - (HYDROBIIDAE) (FOSSIL)
- pesanatis, Chlamys pesanatis L.A. Reeve, 1852 - syn of: Notochlamys hexactes (F. Péron in J.B.P.A. Lamarck, 1819) - (PECTINIDAE)
- pesanseris, Cryptomactra pesanseris (Mayer-Eymar †) - (MACTRIDAE) (FOSSIL)
- pesanseris, Myophoria pesanseris (Schlotheim, 1820 †) - (MYOPHORIIDAE) (FOSSIL)
- pesanseris, Prosocoelus pesanseris (Zeiler & Wirtgen 1851) † - (PROSOCOELIDAE) (FOSSIL)
- pesardeae, Rostellaria pesardeae A. Risso, 1826 † - syn of: Aporrhais uttingerianus (A. Risso, 1826 †) - (ROSTELLARIIDAE) (FOSSIL)
- pesari, Melanopsis pesari P.M. Pallary - syn of: Melanopsis praemorsa (C. Linnaeus, 1758) - (MELANOPSIDAE)
- pesasininus, Spondylus pesasininus P.F. Röding, 1798 - syn of: Spondylus foliaceus K. Schreibers, 1793 - (SPONDYLIDAE)
- pesasinus, Spondylus pesasinus P.F. Röding, 1798 - syn of: Spondylus foliaceus K. Schreibers, 1793 - (SPONDYLIDAE)
- pesbovis, Pterocardia pesbovis (d'Archiac, 1843 †) - (PTEROCARDIIDAE) (FOSSIL)
- pescaderoensis, Turritella pescaderoensis R. Arnold, 1908 † - (TURRITELLIDAE) (FOSSIL)
- pescalia, Odontocymbiola pescalia W.J. Clench & H. Turner, 1964 - (VOLUTIDAE)
- pescalia rucciana, Odontocymbiola pescalia rucciana J. Vazquez & C.H. Caldini, 1990 - (VOLUTIDAE)
- pescarboni, Rostellaria pescarboni A. Brongniart, 1834 † - syn of: Aporrhais meridionalis B. de Basterot, 1825 † - (ROSTELLARIIDAE) (FOSSIL)
- pescarbonis, Aporrhais pescarbonis (A. Brongniart, 1823 †) - (APORRHAIDAE) (FOSSIL)
- pescei, Arganiella pescei F.L. Giusti & E. Pezzoli, 1984 - (HYDROBIIDAE)
- peselephanti, Polinices peselephanti (J.H.F. Link, 1807) - (NATICIDAE)
- peselephanti, Neverita peselephanti J.H.F. Link, 1807 - syn of: Polinices peselephanti (J.H.F. Link, 1807) - (NATICIDAE)
- peselephanti, Natica peselephanti J.H.F. Link, 1807 - syn of: Polinices peselephanti (J.H.F. Link, 1807) - (NATICIDAE)
- pesfelis, Ostrea pesfelis C. Linnaeus, 1758 - syn of: Manupecten pesfelis (C. Linnaeus, 1758) - (OSTREIDAE)
- pesfelis, Manupecten pesfelis (C. Linnaeus, 1758) - (PECTINIDAE)
- pesgallinae, Aporrhais pesgallinae K.H. Barnard, 1963 - (APORRHAIDAE)
- peshanense, Polydesmia peshanense (T. Kobayashi, 1931 †) - (POLYDESMIIDAE) (FOSSIL)
- peshanense, Maruyamacerina peshanense T. Kobayashi, 1931 † - syn of: Polydesmia peshanense (T. Kobayashi, 1931 †) - (POLYDESMIIDAE) (FOSSIL)
- pesici, Lanzaia pesici P. Glöer, J. Grego, Z. Eröss & Z. Fehér, 2015 - (HYDROBIIDAE)
- pesicii, Bithynia pesicii P. Glöer & M.Z. Yildirim, 2006 - (BITHYNIIDAE)
- peskensis, Nodeuomphalus peskensis (Mazaev, 1994 †) - (EUOMPHALIDAE) (FOSSIL)
- peslei, Pecten peslei W.J. Lucas, 1979 - syn of: Chlamys islandica (O.F. Müller, 1776) - (PECTINIDAE)
- pesleonis, Bursa pesleonis H.C.F. Schumacher, 1817 - syn of: Bursa scrobilator (C. Linnaeus, 1758) - (BURSIDAE)
- pesleonis, Ostrea pesleonis E. Forbes, 1846 - (OSTREIDAE)
- peslutrae, Ostrea peslutrae C. Linnaeus, 1771 - syn of: Pseudamussium peslutrae (C. Linnaeus, 1771) - (OSTREIDAE)
- peslutrae, Pseudamussium peslutrae (C. Linnaeus, 1771) - (PECTINIDAE)
- pesmaticis, Anadara pesmaticis P.G. Oliver & H.C.G. Chesney, 1994 - syn of: Anadara crassicostata (H. Adams, 1873) - (ARCIDAE)
- pesmei, Pila pesmei (L.J. Morlet, 1889) - (AMPULLARIIDAE)
- pesmei erythrochila, Pila pesmei erythrochila P. Dautzenberg & H. Fischer, 1905 - (AMPULLARIIDAE)
- pesmi, Pila pesmi L.J. Morlet, 1889 - syn of: Pila pesmei (L.J. Morlet, 1889) - (AMPULLARIIDAE)
- pesolina, Protocardia pesolina Contejean, 1859 † - (CARDIIDAE) (FOSSIL)
- pespelecani, Aporrhais pespelecani C. Linnaeus, 1758 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani, Strombus pespelecani C. Linnaeus, 1758 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (STROMBIDAE)
- pespelecani aculeus, Aporrhais pespelecani aculeus G.S. Coen, 1933 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani bifida, Aporrhais pespelecani bifida G.S. Coen, 1931 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani incrassata, Aporrhais pespelecani incrassata É.A.A. Locard & E. Caziot, 1900 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani oblongus, Aporrhais pespelecani oblongus F. Settepassi, 1970 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani oceanica, Aporrhais pespelecani oceanica M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani panormitana, Aporrhais pespelecani panormitana A. De Gregorio, 1885 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani robustissimus, Aporrhais pespelecani robustissimus F. Settepassi, 1970 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani sarsii, Aporrhais pespelecani sarsii W. Kobelt, 1908 - syn of: Aporrhais serresianus (A. Michaud, 1828) - (APORRHAIDAE)
- pespelecani venetiana, Aporrhais pespelecani venetiana G.S. Coen, 1931 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani viator, Aporrhais pespelecani viator A. De Gregorio, 1885 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani vinitincta, Aporrhais pespelecani vinitincta G.S. Coen, 1914 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelecani violacea, Aporrhais pespelecani violacea M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 - syn of: Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelicani, Aporrhais pespelicani (C. Linnaeus, 1758) - (APORRHAIDAE)
- pespelicani albida, Aporrhais pespelicani albida J.G. Jeffreys, 1867 - (APORRHAIDAE)
- pespelicani bilobatus, Aporrhais pespelicani bilobatus A. Clement, 1875 - (APORRHAIDAE)
- pespelicani meridionalis, Rostellaria pespelicani meridionalis B. de Basterot, 1825 † - syn of: Aporrhais meridionalis B. de Basterot, 1825 † - (ROSTELLARIIDAE) (FOSSIL)
- pespelicani robustus, Aporrhais pespelicani robustus M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 - (APORRHAIDAE)
- pessimum, Carychium pessimum H.A. Pilsbry, 1902 - syn of: Carychiella sibiricum (C.A. Westerlund, 1897) - (ELLOBIIDAE)
- pessoae, Trachycardium pessoae (C.J. Maury, 1924 †) - (CARDIIDAE) (FOSSIL)
- pessoae, Agnocardia pessoae (C.J. Maury, 1925 †) - (CARDIIDAE) (FOSSIL)
- pessoae, Cardium pessoae C.J. Maury, 1924 † - syn of: Trachycardium pessoae (C.J. Maury, 1924 †) - (CARDIIDAE) (FOSSIL)
- pessoides, Goniatites pessoides von Buch, 1838 † - syn of: Kalloclymenia pessoides (von Buch, 1838 †) - (GONIATITIDAE) (FOSSIL)
- pessoides, Kalloclymenia pessoides (von Buch, 1838 †) - (GONIOCLYMENIIDAE) (FOSSIL)
- pesstruthiocameli, Struthiolaria pesstruthiocameli J.H. Chemnitz - syn of: Struthiolaria papulosa (T. Martyn, 1784) - (STRUTHIOLARIIDAE)
- pessulata, Gingicithara pessulata (L.A. Reeve, 1846) - (MANGELIIDAE)
- pessulata, Daphnella pessulata (L.A. Reeve, 1843) - (RAPHITOMIDAE)
- pessulatus, Bulimus pessulatus L.A. Reeve, 1848 - syn of: Bulimulus apodemetes (A.V.M.D. D'Orbigny, 1835) - (BULIMULIDAE)
- pessulatus, Lithophaga pessulatus L.A. Reeve, 1857 - syn of: Lithophaga plumula (S.C.T. Hanley, 1843) - (MYTILIDAE)
- pessumata, Cylichna pessumata N.F. Sohl, 1964 † - (CYLICHNIDAE) (FOSSIL)
- pesterica, Bythinella pesterica P. Glöer, 2008 - (BYTHINELLIDAE)
- pestigris, Crenostrea pestigris J. Marwick 1931 † - (GRYPHAEIDAE) (FOSSIL)
- pestigris, Planostrea pestigris (S.C.T. Hanley, 1846 †) - (OSTREIDAE) (FOSSIL)
- pestigris, Ostrea pestigris G.B. Sowerby, 1871 - syn of: Dendostrea senegalensis (J.F. Gmelin, 1791) - (OSTREIDAE)
- pestigris, Dendostrea pestigris (S.C.T. Hanley, 1846 †) - syn of: Planostrea pestigris (S.C.T. Hanley, 1846 †) - (OSTREIDAE) (FOSSIL)
- pestis, Callista pestis J. Marwick, 1938 † - (VENERIDAE) (FOSSIL)
- Pestomena, syn of: Genus Sulfurina O.F. von Möllendorff, 1893 (HELICINIDAE)
- petagnae, Gregariella petagnae (A. Scacchi, 1832) - (MYTILIDAE)
- petagnae, Modiolus petagnae L.A. Reeve, 1857 - syn of: Arcuatula papyria (T.A. Conrad, 1846) - (MYTILIDAE)
- petagnae, Venus petagnae A. da Costa, 1829 - syn of: Astarte fusca (G.S. Poli, 1791) - (VENERIDAE)
- petagnae rietensis, Modiolus petagnae rietensis W.H. Turton, 1932 - syn of: Gregariella petagnae (A. Scacchi, 1832) - (MYTILIDAE)
- petagnae simplicifilis, Gregariella petagnae simplicifilis K.H. Barnard, 1964 - (MYTILIDAE)
- Petaifera, syn of: Genus Petalifera J.E. Gray, 1847 (APLYSIIDAE)
- petaini, Indosphinctes petaini (Lemoine, 1916 †) - (PERISPHINCTIDAE) (FOSSIL)
- petala, Cerithiopsis petala W.H. Dall, 1927 - (CERITHIOPSIDAE)
- petalata, Cellana petalata L.A. Reeve, 1844 - syn of: Cellana radiata (I. von Born, 1778) - (NACELLIDAE)
- Petalifera, Genus Petalifera J.E. Gray, 1847 (APLYSIIDAE)
- petalifera, Petalifera petalifera (P.C.A.S.L. Rang, 1828) - (APLYSIIDAE)
- petalifera, Granigyra petalifera (I. von Born, 1778) - (SEGUENZIOIDEA (UNASSIGNED))
- petalifera, Brookula petalifera C. Hedley & W.L. May, 1908 - syn of: Liotella petalifera (C. Hedley & W.L. May, 1908) - (SEGUENZIOIDEA (unassigned))
- petalifera, Liotella petalifera (C. Hedley & W.L. May, 1908) - (SKENEIDAE)
- petalina, Hiatula petalina (G.P. Deshayes, 1855) - (PSAMMOBIIDAE)
- petalina, Psammobia petalina G.P. Deshayes, 1855 - syn of: Hiatula petalina (G.P. Deshayes, 1855) - (PSAMMOBIIDAE)
- petalina, Tellina petalina G.P. Deshayes, 1855 - syn of: Tellina staurella J.B.P.A. Lamarck, 1818 - (TELLINIDAE)
- petalina, Venus petalina J.B.P.A. Lamarck, 1818 - syn of: Polititapes aureus (J.F. Gmelin, 1791) - (VENERIDAE)
- petaline, Palaeolima petaline Zhang, 1981 † - (LIMIDAE) (FOSSIL)
- petalis, Aegires petalis S.J. Fahey & T.M. Gosliner, 2004 - (AEGIRIDAE)
- petalius, Ovini petalius L.R.L. Simone, 2013 - (TORNIDAE)
- petallinus, Donax petallinus L.A. Reeve, 1854 - syn of: Donax kindermanni (R.A. Philippi, 1847) - (DONACIDAE)
- Petalocardia, Genus Petalocardia Vincent, 1925 † (GLOSSIDAE) (FOSSIL)
- Petalochlamys, Genus Petalochlamys H.H. Godwin-Austen, 1907 (HELICARIONIDAE)
- Petaloconchus, Genus Petaloconchus H.C. Lea, 1843 (VERMETIDAE)
- Petalodontia, Genus Petalodontia Pocta, 1889 † (MONOPLEURIDAE) (FOSSIL)
- petaloides, Stenoplax petaloides (A.A. Gould, 1846) - (ISCHNOCHITONIDAE)
- Petalopoma, Genus Petalopoma S. Schiaparelli, 2002 (SILIQUARIIDAE)
- petalos, Coronium petalos R. Houart & J. Sellanes, 2010 - (MURICIDAE)
- petalum, Macoma petalum (A. Valenciennes, 1821) - (TELLINIDAE)
- petalus, Bankia petalus Garvie 1996 † - (TEREDINIDAE) (FOSSIL)
- petaneana, Turbonilla petaneana (C.R. Laws, 1937 †) - (PYRAMIDELLIDAE) (FOSSIL)
- petanii, Cerithiopsis petanii J. Prkic & P. Mariottini, 2010 - (CERITHIOPSIDAE)
- petasa, Craspedochiton petasa (L.A. Reeve, 1847) - (ACANTHOCHITONIDAE)
- petasa, Diodora petasa A.A. Olsson & A. Harbison, 1953 † - (FISSURELLIDAE) (FOSSIL)
- petasatus, Theodoxus petasatus (Seninski, 1905 †) - (NERITIDAE) (FOSSIL)
- Petasia, syn of: Genus Euconulus O.W.H. Reinhardt, 1883 (EUCONULIDAE)
- Petasiella, syn of: Subgenus Trichia (Petasina) H.H. Beck, 1847 (HYGROMIIDAE)
- petasina, Cardiolinka petasina (Barrande, 1881 †) - (CARDIOLIDAE) (FOSSIL)
- Petasina, Subgenus Trichia (Petasina) H.H. Beck, 1847 (HYGROMIIDAE)
- petasion, Acar petasion (R.N. Kilburn, 1983) - (ARCIDAE)
- Petasipoma, syn of: Genus Abbottella J. Henderson & P. Bartsch, 1920 (POMATIIDAE)
- petasites, Drymaeus petasites K. Miller, 1878 - (BULIMULIDAE)
- Petasotheca, Genus Petasotheca Landing & Bartowski, 1996 † (ORTHOTHECIDAE) (FOSSIL)
- petasunculinus, Mytilus galloprovincialis petasunculinus É.A.A. Locard, 1889 - (MYTILIDAE)
- petasus, Craspedochiton petasus L.A. Reeve, 1847 - syn of: Craspedochiton petasa (L.A. Reeve, 1847) - (ACANTHOCHITONIDAE)
- petasus, Armsia petasus (C.M.F. Ancey, 1899) - (AMASTRIDAE)
- petasus, Pterodiscus petasus C.M.F. Ancey, 1899 - syn of: Armsia petasus (C.M.F. Ancey, 1899) - (AMASTRIDAE)
- petasus, Discotectonica petasus (J.R. le B. Tomlin, 1928) - (ARCHITECTONICIDAE)
- petasus, Conus petasus N.H. Ludbrook, 1978 † - (CONIDAE) (FOSSIL)
- petasus, Pachymytilus petasus (d'Orbigny 1850) † - (PTERIIDA (UNASSIGNED)) (FOSSIL)
- petasus, Sepiolina petasus T. Kubodera & T.A. Okutani, 2011 - (SEPIOLIDAE)
- petaurista, Notarchus petaurista H. Engel, 1929 - (APLYSIIDAE)
- petchorica, Palaeomutela petchorica Kanev † - (PALAEOMUTELIDAE) (FOSSIL)
- petechialis, Goniobranchus petechialis (A.A. Gould, 1852) - (CHROMODORIDIDAE)
- petechialis, Zonaria petechialis P.F. Röding, 1798 - syn of: Zonaria sanguinolenta (J.F. Gmelin, 1791) - (CYPRAEIDAE)
- petechialis, Doris petechialis A.A. Gould, 1852 - syn of: Goniobranchus petechialis (A.A. Gould, 1852) - (DORIDIDAE)
- petechialis, Nerita petechialis O.A.L. Mörch, 1852 - syn of: Argonerita signata (J.B.P.A. Lamarck, 1822) - (NERITIDAE)
- petechialis, Meretrix petechialis (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- petelini, Pseudocadoceras petelini (Pompeckj, 1900 †) - (CADOCERATIDAE) (FOSSIL)
- Petelodoris, syn of: Genus Atagema J.E. Gray, 1850 (DISCODORIDIDAE)
- petenensis, Amnicola petenensis P.M.A. Morelet, 1851 - syn of: Aroapyrgus petenensis (P.M.A. Morelet, 1851) - (AMNICOLIDAE)
- petenensis, Bulimus petenensis P.M.A. Morelet, 1851 - syn of: Bulimulus unicolor (G.B. I Sowerby, 1833) - (BULIMULIDAE)
- petenensis, Aroapyrgus petenensis (P.M.A. Morelet, 1851) - (COCHLIOPIDAE)
- petenensis, Mayabina petenensis D.W. Taylor, 2003 - (PHYSIDAE)
- petenensis, Biomphalaria petenensis (P.M.A. Morelet, 1851) - (PLANORBIDAE)
- petenensis, Melania petenensis H.B. Tristram, 1862 - syn of: Aylacostoma rubiginosum (P.M.A. Morelet, 1849) - (THIARIDAE)
- petenensis, Paludina petenensis P.M.A. Morelet, 1851 - syn of: Aroapyrgus petenensis (P.M.A. Morelet, 1851) - (VIVIPARIDAE)
- Petenia, syn of: Subgenus Streptostyla (Peteniella) H.A. Pilsbry, 1907 (SPIRAXIDAE)
- Peteniella, Subgenus Streptostyla (Peteniella) H.A. Pilsbry, 1907 (SPIRAXIDAE)
- peteningensis, Lyrodes peteningensis (A.A. Gould, 1852) - (COCHLIOPIDAE)
- peterclarksoni, Mitra peterclarksoni M.P. Marrow, 2013 - (MITRIDAE)
- petergabrieli, Graphiconus petergabrieli (F.Jr. Lorenz, 2006) - (CONIDAE)
- peteri, Limopsis peteri A.G. Beu, 1969 † - (LIMOPSIDAE) (FOSSIL)
- peteri, Zeacolpus peteri J. Marwick, 1971 † - (TURRITELLIDAE) (FOSSIL)
- peteri, Vallonia peteri (A.A. Schileyko, 1984) - (VALLONIIDAE)
- peterjungi, Dorsina peterjungi B.M. Landau, F. Da Silva & S.M. Heitz, 2016 † - (COLUMBELLIDAE) (FOSSIL)
- petermannensis, Scissurella petermannensis É. Lamy, 1910 - (SCISSURELLIDAE)
- peterpondi, Psilomya peterpondi McLearn, 1933 † - (POROMYIDAE) (FOSSIL)
- petersburgensis, Anadara petersburgensis A.A. Olsson & A. Harbison, 1953 - (ARCIDAE)
- petersburgensis?, Anadara petersburgensis? A.A. Olsson & A. Harbison, 1953 - (ARCIDAE)
- petersenensis, Virgotrigonia petersenensis Alleman, 1985 † - (TRIGONIIDA (UNASSIGNED)) (FOSSIL)
- peterseni, Zilchogyra peterseni W.K. Weyrauch, 1965 - (HELICODISCIDAE)
- peterseni, Olivella peterseni A.A. Olsson, 1956 - (OLIVELLIDAE)
- peterseni, Parthenina peterseni Schnetler, 2001 † - (PYRAMIDELLIDAE) (FOSSIL)
- peterseni, Sepia peterseni J.J.A. Appellöf, 1886 - (SEPIIDAE)
- peterseni, Skenea peterseni (H.B.S. Friele, 1877) - (SKENEIDAE)
- petersi, Armina petersi L.S.R. Bergh, 1861, 1860 - (ARMINIDAE)
- petersi, Abida secale petersi B. Kokshoorn & E. Gittenberger, 2010 - (CHONDRINIDAE)
- petersi, Columbella petersi (R. Hoernes & M. Auinger, 1879 †) - (COLUMBELLIDAE) (FOSSIL)
- petersi, Haminoea petersi (E.C. Von Martens, 1879) - (HAMINOEIDAE)
- petersi, Hexabranchus petersi L.S.R. Bergh, 1878 - syn of: Hexabranchus sanguineus (W.P.E.S. Rüppell & F.S. Leuckart, 1830) - (HEXABRANCHIDAE)
- petersi, Chambardia petersi (E.C. Von Martens, 1860) - (IRIDINIDAE)
- petersi, Lymnaea petersi W.H. Dall, 1905 - (LYMNAEIDAE)
- petersi, Bicornucopina petersi Hofmann 1912 † - (MONOPLEURIDAE) (FOSSIL)
- petersi, Dicrista petersi (G.A. Solem, 1956) - (NEOCYCLOTIDAE)
- petersi, Teredora petersi C.E. von Moll, 1928 - syn of: Teredora princesae (P.B. Sivickis, 1928) - (TEREDINIDAE)
- petersi, Praeoestophorella petersi (A.E. Reuss in A.E. Reuss & Meyer, 1849 †) - (TRISSEXODONTIDAE) (FOSSIL)
- Petersia, Genus Petersia Cossmann, 1899 † (EULIMIDAE) (FOSSIL)
- petersii, Barbatia petersii R.W. Dunker, 1871 - syn of: Barbatia trapezina (J.B.P.A. Lamarck, 1819) - (ARCIDAE)
- petersii, Pinctada petersii (R.W. Dunker, 1852) - (PTERIIDAE)
- petersii, Sepietta petersii J.J.S. Steenstrup, 1887 - syn of: Sepietta oweniana (A.V.M.D. D'Orbigny, 1841) - (SEPIOLIDAE)
- petersoni, Aplysia petersoni J.E. Gray, 1828 - syn of: Aplysia depilans J.F. Gmelin, 1791 - (APLYSIIDAE)
- petersoni, Zorrita petersoni Olsson 1932 † - (CARDIIDA (UNASSIGNED)) (FOSSIL)
- petersoni, Galeodea petersoni T.A. Conrad, 1854 † - (CASSIDAE) (FOSSIL)
- petersoni, Paradonax petersoni A.A. Olsson, 1931 † - (DONACIDAE) (FOSSIL)
- petersoni, Compsodrillia petersoni P. Bartsch, 1934 - (PSEUDOMELATOMIDAE)
- petersoni, Turritella petersoni Merriam, 1941 † - (TURRITELLIDAE) (FOSSIL)
- peteryalli, Pontohedyle peteryalli K.M. Jörger & M. Schrödl, 2013 - (PARHEDYLIDAE)
- petestimpsoni, Lamniconus petestimpsoni (E.J. Petuch & D.P. Berschauer, 2016) - (CONIDAE)
- petestimpsoni, Morum petestimpsoni Thach, 2017 - (HARPIDAE)
- pethertonensis, Trochus pethertonensis Moore † - (TROCHIDAE) (FOSSIL)
- pethiolatus, Turbo pethiolatus W.J. Swainson, 1840 - syn of: Turbo sarmaticus C. Linnaeus, 1758 - (TURBINIDAE)
- petholata, Theba petholata A.G. Olivi, 1792 - syn of: Theba pisana (O.F. Müller, 1774) - (HELICIDAE)
- petholatus, Chiton petholatus G.B. Sowerby, 1840 - (CHITONIDAE)
- petholatus, Turbo petholatus C. Linnaeus, 1758 - (TURBINIDAE)
- petholatus imperialis, Turbo petholatus imperialis J.F. Gmelin, 1791 - syn of: Turbo imperialis J.F. Gmelin, 1791 - (TURBINIDAE)
- petholatus reevei, Turbo petholatus reevei R.A. Philippi, 1847 - syn of: Turbo reevei R.A. Philippi, 1847 - (TURBINIDAE)
- petholatus thanus, Turbo petholatus thanus H.S. Ladd, 1934 - (TURBINIDAE)
- Pethopecten, Genus Pethopecten Hertlein, 1936 † (PTERIIDA (UNASSIGNED)) (FOSSIL)
- peticularis, Rissoa peticularis K.T. Menke, 1830 - syn of: Onoba semicostata (G. Montagu, 1803) - (RISSOIDAE)
- petila, Achatinella petila J.T. Gulick - syn of: Leptachatina petila J.T. Gulick, 1856 - (ACHATINELLIDAE)
- petila, Leptachatina petila J.T. Gulick, 1856 - (AMASTRIDAE)
- petila, Murchisonia petila J.W. Hall & R.P. Whitfield, 1872 † - (MURCHISONIIDAE) (FOSSIL)
- petiliana, Aeolidia petiliana J.B. Vérany, 1865 - (AEOLIDIIDAE)
- petilinus, Conticosta petilinus (C. Hedley, 1922) - (PSEUDOMELATOMIDAE)
- petilinus, Inquisitor petilinus C. Hedley, 1922 - syn of: Conticosta petilinus (C. Hedley, 1922) - (PSEUDOMELATOMIDAE)
- petilirostris, Umbilia petilirostris T.A. Darragh, 2002 - (CYPRAEIDAE)
- petilitornata, Bicarina petilitornata (E.G. Linsley, 1968 †) - (GOSSELETINIDAE) (FOSSIL)
- petilla, Murchisonia petilla J.W. Hall & R.P. Whitfield, 1872 † - syn of: Murchisonia petila J.W. Hall & R.P. Whitfield, 1872 † - (MURCHISONIIDAE) (FOSSIL)
- petilus, Gymnites petilus Wang & C. Chen, 1979 † - (GYMNITIDAE) (FOSSIL)
- petilus, Microcornus petilus Bengtson & al., 1990 † - (NELEGEROCORNIDAE) (FOSSIL)
- petina, Myalina petina Newell, 1942 † - (MYALINIDAE) (FOSSIL)
- petinensis, Semilukispira petinensis (Nalivkin, 1930 †) - (BELLEROPHONTIDAE) (FOSSIL)
- Petinoceras, syn of: Genus Hysteroceras Hyatt , 1900 † (BRANCOCERATIDAE) (FOSSIL)
- petiolita, Olivella petiolita (P.L. Duclos, 1835) - (OLIVELLIDAE)
- petita, Cucullaea petita T. Iredale, 1939 - (CUCULLAEIDAE)
- petitboucheti, Gulella petitboucheti K.C. Emberton, 2001 - (STREPTAXIDAE)
- petitclerci, Crussoliceras petitclerci Énay, Gallois & Etches, 2014 † - (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- petitclerci, Cerithium petitclerci A.E.M. Cossmann, 1882 † - (CERITHIIDAE) (FOSSIL)
- petitclerci, Collotites petitclerci Jeannet, 1951 † - (REINECKEIIDAE) (FOSSIL)
- Petitclercia, Genus Petitclercia Rollier, 1909 † (OPPELIIDAE) (FOSSIL)
- petitdevoizei, Specula petitdevoizei A. Cecalupo & I. Perugia, 2013 - (NEWTONIELLIDAE)
- petitdevoizei, Gregoia petitdevoizei D. Fehse, 2015 - (TRIVIIDAE)
- petiti, Helicophanta petiti E. Fischer-Piette, 1950 - (ACAVIDAE)
- petiti, Asolene petiti (J.C.H. Crosse, 1891) - (AMPULLARIIDAE)
- petiti, Monostiolum petiti A.A. Olsson, 1967 † - (BUCCINIDAE) (FOSSIL)
- petiti, Vermiculatus petiti (L. Pfeiffer, 1846) - (BULIMULIDAE)
- petiti, Africotriton petiti A.G. Beu & P.A. Maxwell, 1987 - (CANCELLARIIDAE)
- petiti, Gergovia petiti J.C.N. Barros & S.F.B. de Lima, 2007 - (CANCELLARIIDAE)
- petiti, Brocchinia petiti P.A. Maxwell, 1992 † - (CANCELLARIIDAE) (FOSSIL)
- petiti, Agatrix petiti P. Lozouet, 2015 † - (CANCELLARIIDAE) (FOSSIL)
- petiti, Cancellaria petiti A.A. Olsson, 1967 † - (CANCELLARIIDAE) (FOSSIL)
- petiti, Chromodoris petiti (J.C.H. Crosse, 1875) - (CHROMODORIDIDAE)
- petiti, Pleurotomoides petiti P. Dautzenberg, 1932 - (CLATHURELLIDAE)
- petiti, Contraconus petiti E.J. Petuch, 2004 † - syn of: Contraconus adversarius (T.A. Conrad, 1840 †) - (CONIDAE) (FOSSIL)
- petiti, Boucardicus petiti E. Fischer-Piette & J. Bedoucha, 1965 - (CYCLOPHORIDAE)
- petiti, Cylichna petiti P. Dautzenberg, 1923 - (CYLICHNIDAE)
- petiti, Fenimorea petiti D.L. Tippett, 1995 - (DRILLIIDAE)
- petiti, Goniodoris petiti J.C.H. Crosse, 1875 - (GONIODORIDIDAE)
- petiti, Heterocyclus petiti Unknown - (HYDROBIIDAE)
- petiti, Peasiella petiti Renard, 1994 † - (LITTORINIDAE) (FOSSIL)
- petiti, Megalomastoma petiti (C. de la Torre, P. Bartsch & J.P.E. Morrison, 1942) - (MEGALOMASTOMIDAE)
- petiti, Tropochasca petiti A.A. Olsson, 1967 † - (MELONGENIDAE) (FOSSIL)
- petiti, Scabricola petiti G.T. Poppe & S.P. Tagaro, 2006 - (MITRIDAE)
- petiti, Murexiella petiti E.H. Vokes, 1968 † - (MURICIDAE) (FOSSIL)
- petiti, Neritina petiti C.A. Récluz, 1841 - (NERITIDAE)
- petiti, Olivella petiti F.P. Jousseaume, 1884 - (OLIVELLIDAE)
- petiti, Tricolia petiti (A. Craven, 1882) - (PHASIANELLIDAE)
- petiti, Physa petiti J.C.H. Crosse, 1872 - syn of: Glyptophysa petiti (J.C.H. Crosse, 1872) - (PHYSIDAE)
- petiti, Glyptophysa petiti (J.C.H. Crosse, 1872) - (PLANORBIDAE)
- petiti, Tropidophora petiti E. Fischer-Piette, 1949 - (POMATIIDAE)
- petiti, Cerithidea petiti L.C. Kiener in A. Schramm, 1869 - syn of: Cerithideopsis costata (E.M. Da Costa, 1778) - (POTAMIDIDAE)
- petiti, Gymnobela petiti E.F. Garcia, 2005 - (RAPHITOMIDAE)
- petiti, Pleurotomella petiti Y.I. Kantor, M.G. Harasewych & N. Puillandre, 2016 - (RAPHITOMIDAE)
- petiti, Iacra petiti P. Dautzenberg, 1923 - (SEMELIDAE)
- petiti, Strioterebrum petiti A.A. Olsson, 1967 † - (TEREBRIDAE) (FOSSIL)
- petiti, Terebra petiti C.J. Maury, 1917 † - syn of: Oreoterebra isaacpetiti (C.J. Maury, 1925 †) - (TEREBRIDAE) (FOSSIL)
- petiti, Malea petiti E.J. Petuch, 1989 - syn of: Tonna galea (C. Linnaeus, 1758) - (TONNIDAE)
- petiti, Cyclostremiscus petiti Perrilliat, 2013 † - (TORNIDAE) (FOSSIL)
- petiti, Tivela petiti P. Dautzenberg, 1929 - syn of: Tivela transversa (G.B. III Sowerby, 1897) - (VENERIDAE)
- petiti, Venerupis petiti G.P. Deshayes, 1839 - syn of: Leukoma staminea (T.A. Conrad, 1837) - (VENERIDAE)
- petiti, Scaphella petiti E.J. Petuch, 1994 † - (VOLUTIDAE) (FOSSIL)
- Petitia, syn of: Genus Leptocala C.M.F. Ancey, 1888 (ACHATINIDAE)
- petitia, Leptocala mollicella petitia (F.P. Jousseaume, 1884) - (ACHATINIDAE)
- petitia, Petitia petitia F.P. Jousseaume, 1884 - syn of: Leptocala mollicella petitia (F.P. Jousseaume, 1884) - (HELICINIDAE)
- Petitia, syn of: Subgenus Fadyenia (Blandia) E. Chitty, 1857 (HELICINIDAE)
- petitiana, Auriculella petitiana (L. Pfeiffer, 1847) - (ACHATINELLIDAE)
- petitiana, Zachrysia petitiana (A.V.M.D. D'Orbigny, 1842) - (CAMAENIDAE)
- petitiana, Zonaria pyrum petitiana (J.C.H. Crosse, 1872) - (CYPRAEIDAE)
- petitiana, Melanella petitiana Š. Brusina, 1869 - (EULIMIDAE)
- petitiana, Troschelviana petitiana (A.V.M.D. D'Orbigny, 1842) - (HELICINIDAE)
- petitiana, Lasaea petitiana (C.A. Récluz, 1843) - (LASAEIDAE)
- petitiana, Scrobicularia petitiana D'Orbigny, 1853 - syn of: Cumingia antillarum A. Adams, 1850 - (SCROBICULARIIDAE)
- petitiana, Semele petitiana D'Orbigny in R. de la Sagra, 1853 - syn of: Semele bellastriata T.A. Conrad, 1837 - (SEMELIDAE)
- petitiana, Tellina petitiana D'Orbigny, 1846 - (TELLINIDAE)
- petitiana, Vanikoro petitiana C.A. Récluz, 1844 - syn of: Vanikoro cancellatus (J.B.P.A. Lamarck, 1822) - (VANIKORIDAE)
- petitiana laticosta, Artecallosa petitiana laticosta A.J. Wagner - syn of: Troschelviana petitiana (A.V.M.D. D'Orbigny, 1842) - (HELICINIDAE)
- petitiana virescens, Zachrysia petitiana virescens C. de la Torre & A. Moreno, 1943 - (CAMAENIDAE)
- petitianum, Cardium petitianum A.V.M.D. D'Orbigny, 1846 - syn of: Papyridea semisulcata (J.E. Gray, 1825) - (CARDIIDAE)
- petitianum, Chondropoma petitianum L. Pfeiffer, 1850 - (POMATIIDAE)
- petitianum hispaniolae, Chondropoma petitianum hispaniolae P. Bartsch, 1946 - (POMATIIDAE)
- petitianus, Penion petitianus (A.V.M.D. D'Orbigny, 1842 †) - (BUCCINIDAE) (FOSSIL)
- petitianus, Cecilioides petitianus L. Benoit, 1862 - (FERUSSACIIDAE)
- petitianus, Potamolithus petitianus (A.V.M.D. D'Orbigny, 1840) - (LITHOGLYPHIDAE)
- petitianus, Gennaeosinum petitianus (C.A. Récluz in J.C. Chenu, 1843) - (NATICIDAE)
- petitianus, Microceramus petitianus (A.V.M.D. D'Orbigny, 1841) - (UROCOPTIDAE)
- petitianus, Megalomphalus petitianus (N. Tiberi, 1869) - (VANIKORIDAE)
- petitianus perconicus, Microceramus petitianus perconicus (H.A. Pilsbry, 1904) - (UROCOPTIDAE)
- petitii, Haminoea petitii (A.V.M.D. D'Orbigny, 1841) - (HAMINOEIDAE)
- petitii, Hiatella petitii G.B. II Sowerby, 1875 - syn of: Hiatella arctica (C. Linnaeus, 1767) - (HIATELLIDAE)
- petitii, Mactra petitii (A.V.M.D. D'Orbigny, 1846) - (MACTRIDAE)
- petitii, Spisula petitii D'Orbigny, 1846 - syn of: Mactra petitii (A.V.M.D. D'Orbigny, 1846) - (MACTRIDAE)
- petitii, Marginella petitii A. Duval, 1841 - (MARGINELLIDAE)
- petitii, Skenea petitii P. Fischer, 1857 - syn of: Solariorbis petitii (P. Fischer, 1857) - (SKENEIDAE)
- petitii, Terebra petitii L.C. Kiener, 1839 - syn of: Terebra dislocata (T. Say, 1822) - (TEREBRIDAE)
- petitii, Psiloteredo petitii C.A. Récluz, 1849 - syn of: Psiloteredo senegalensis (H.M.D. de Blainville, 1824) - (TEREDINIDAE)
- petitii, Teredo petitii C.A. Récluz, 1849 - syn of: Psiloteredo senegalensis (H.M.D. de Blainville, 1824) - (TEREDINIDAE)
- petitii, Solariorbis petitii (P. Fischer, 1857) - (TORNIDAE)
- petitii, Pleurotoma petitii C. Maravigna, 1840 - syn of: Haedropleura septangularis (G. Montagu, 1803) - (TURRIDAE)
- Petitilla, Genus Petitilla J.B. Wise, 1997 (PYRAMIDELLIDAE)
- petiveriana, Glossaulax petiveriana (C.A. Récluz, 1843) - (NATICIDAE)
- petiveriana, Pristiterebra petiveriana (G.P. Deshayes, 1857) - (TEREBRIDAE)
- petiveriana, Terebra petiveriana G.P. Deshayes, 1857 - syn of: Pristiterebra petiveriana (G.P. Deshayes, 1857) - (TEREBRIDAE)
- petiverianum, Myxostoma petiverianum (W. Wood, 1828) - (CYCLOPHORIDAE)
- petiverianum, Myxostoma petiverianum Foon, 2016 - (CYCLOPHORIDAE)
- petkovici, Pseudocatillus petkovici (P.S. Pavlovic, 1929 †) - (CARDIIDAE) (FOSSIL)
- petkovici, Pseudodianella petkovici (P.S. Pavlovic, 1903 †) - (HYDROBIIDAE) (FOSSIL)
- petkovici, Melanopsis petkovici P.S. Pavlovic, 1931 † - (MELANOPSIDAE) (FOSSIL)
- petkovici, Phyllopachyceras petkovici Vašícek & al., 2014 † - (PHYLLOCERATIDAE) (FOSSIL)
- petkovici, Viviparus petkovici Atanackovic, 1959 † - (VIVIPARIDAE) (FOSSIL)
- Petkovicia, Genus Petkovicia Kühn & Pejovic, 1959 † (RADIOLITIDAE) (FOSSIL)
- petoskeyensis, Stagnicola petoskeyensis B. Walker, 1908 - (LYMNAEIDAE)
- petra, Spinoaglaja petra (Ev. Marcus, 1976) - (AGLAJIDAE)
- petra, Philinopsis petra (Ev. Marcus, 1976) - syn of: Spinoaglaja petra (Ev. Marcus, 1976) - (AGLAJIDAE)
- Petraconcha, Genus Petraconcha S.A. Clark, 2009 (CAMAENIDAE)
- petraea, Helix petraea G. Montagu, 1803 - syn of: Melarhaphe neritoides (C. Linnaeus, 1758) - (HELICIDAE)
- petraea, Turbo petraea Münster, 1840 † - (TURBINIDAE) (FOSSIL)
- Petraecerastus, syn of: Genus Euryptyxis P. Fischer, 1883 (CERASTUIDAE)
- Petraeocerastus, syn of: Genus Euryptyxis P. Fischer, 1883 (CERASTUIDAE)
- Petraeomastus, Subgenus Pupinidius (Petraeomastus) O.F. von Möllendorff, 1901 (ENIDAE)
- petraeum, Paratorleyoceras petraeum (G.G. Münster, 1839 †) - (CHEILOCERATIDAE) (FOSSIL)
- petraeum, Dendropoma petraeum (T.A. de M. Monterosato, 1884) - (VERMETIDAE)
- petraeum cristatus, Dendropoma petraeum cristatus S. Biondi-Giunti, 1859 - syn of: Dendropoma cristatum (S. Biondi-Giunti, 1859) - (VERMETIDAE)
- Petraeus, syn of: Genus Buliminus H.H. Beck, 1837 (ENIDAE)
- petraeus, Goniatites petraeus G.G. Münster, 1839 † - syn of: Paratorleyoceras petraeum (G.G. Münster, 1839 †) - (GONIATITIDAE) (FOSSIL)
- petraeus, Littorina petraeus G. Montagu, 1803 - syn of: Melarhaphe neritoides (C. Linnaeus, 1758) - (LITTORINIDAE)
- Petrafixia, Subgenus Pyramimitra (Petrafixia) Garvie, 1996 † (PYRAMIMITRIDAE) (FOSSIL)
- petrafixus, Scutus petrafixus Finlay, 1930 † - (FISSURELLIDAE) (FOSSIL)
- petralbensis, Theodoxus zografi petralbensis E. Jekelius, 1944 † - (NERITIDAE) (FOSSIL)
- petralis, Thisbites petralis Tozer, 1994 † - (THISBITIDAE) (FOSSIL)
- Petrarca, syn of: Subgenus Lauria (Senilauria) H.A. Pilsbry, 1928 (LAURIIDAE)
- Petrasma, Subgenus Solemya (Petrasma) W.H. Dall, 1908 (SOLEMYIDAE)
- petrbocki, Cristataria petrbocki (P.M. Pallary, 1939) - syn of: Cristataria petrboki (P.M. Pallary, 1939) - (CLAUSILIIDAE)
- petrboki, Cristataria petrboki (P.M. Pallary, 1939) - (CLAUSILIIDAE)
- petrboki, Paleuphemites petrboki Horný, 1962 † - (EUPHEMITIDAE) (FOSSIL)
- petrei, Guajaibona petrei (A.V.M.D. D'Orbigny, 1842) - (POMATIIDAE)
- petrela, Trivia petrela A.A. Olsson & A. Harbison, 1953 † - (TRIVIIDAE) (FOSSIL)
- petrenkoi, Cravenoceras petrenkoi Librovitch, 1938 † - (CRAVENOCERATIDAE) (FOSSIL)
- petrenkoi, Halobia petrenkoi Korchinskaya, 1980 † - (HALOBIIDAE) (FOSSIL)
- petrensis, Alopia petrensis H. Nordsieck, 1996 - syn of: Alopia microstoma M. von Kimakowicz, 1883 - (CLAUSILIIDAE)
- petrettinii, Corbicula petrettinii P.M. Pallary, 1909 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- petrettinii, Aetheria petrettinii J.R. Bourguignat, 1880 - syn of: Etheria elliptica J.B.P.A. Lamarck, 1807 - (ETHERIIDAE)
- petreus, Conus petreus P.F. Röding, 1798 - syn of: Leptoconus ammiralis (C. Linnaeus, 1758) - (CONIDAE)
- petri, Murex petri W.H. Dall, 1900 - syn of: Pteropurpura macroptera (G.P. Deshayes, 1839) - (MURICIDAE)
- petri, Opisthosiphon quinti petri C.G. Aguayo & M.L. Jaume, 1945 - (POMATIIDAE)
- petri, Nuttallia petri (P. Bartsch, 1929) - (PSAMMOBIIDAE)
- petri, Turbonilla petri P. Bartsch, 1919 - syn of: Derjuginella rufofasciata (E.A. Smith, 1875) - (PYRAMIDELLIDAE)
- petri, Cochlodinella petri C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- petricola, Achatinella petricola L. Pfeiffer, 1855 - (ACHATINELLIDAE)
- petricola, Amastra petricola W. Newcomb, 1855 - (AMASTRIDAE)
- petricola, Naticopsis petricola C. Gemmellaro, 1889 † - (DELPHINULOPSIDAE) (FOSSIL)
- petricola, Taipidon petricola G.A. Solem, 1976 - (ENDODONTIDAE)
- petricola, Helminthoglypta petricola S.S. Berry, 1916 - (HELMINTHOGLYPTIDAE)
- petricola, Lepetopsis petricola E.A.L. Kittl, 1894 † - (LEPETOPSIDAE) (FOSSIL)
- petricola, Littorina petricola R. Arnold, 1908 † - (LITTORINIDAE) (FOSSIL)
- petricola, Volvarina petricola J. Espinosa, L. Moro & J.A. Ortea, 2011 - (MARGINELLIDAE)
- petricola, Acrorbis petricola N.H. Odhner, 1937 - (PLANORBIDAE)
- petricola, Chondrothyretes reticulata petricola (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- petricola, Vitrea petricola M. Paulucci, 1882 - syn of: Vitrea subrimata (O.W.H. Reinhardt, 1871) - (PRISTILOMATIDAE)
- petricola, Obeliscus petricola C.G. Aguayo & M.L. Jaume, 1957 - (SUBULINIDAE)
- petricola, Vallonia petricola S. Clessin, 1908 - syn of: Vallonia pulchella (O.F. Müller, 1774) - (VALLONIIDAE)
- Petricola, Genus Petricola J.B.P.A. Lamarck, 1801 (VENERIDAE)
- Petricolaria, Genus Petricolaria F. Stoliczka, 1870 (VENERIDAE)
- petricolella, Chondrothyretes reticulata petricolella (C. de la Torre & P. Bartsch, 1938) - (POMATIIDAE)
- PETRICOLIDAE - syn of Family: VENERIDAE
- petricolides, Lithophaga petricolides † - (MYTILIDAE) (FOSSIL)
- Petricolirus, syn of: Genus Petricola J.B.P.A. Lamarck, 1801 (VENERIDAE)
- petricoloides, Lithophaga petricoloides † - (MYTILIDAE) (FOSSIL)
- petricoloides, Solemya petricoloides Lea, 1833 - (SOLEMYIDAE)
- petricosa, Ceratomya petricosa (C.T. Simpson, 1855 †) - (CERATOMYIDAE) (FOSSIL)
- petricosa, Chondrothyrella petricosa (P.M.A. Morelet, 1851) - (POMATIIDAE)
- petricosa, Venus petricosa C.T. Simpson, 1855 - (VENERIDAE)
- petricosa anafensis, Chondrothyrella petricosa anafensis C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- petricosa elizabethae, Chondrothyrella petricosa elizabethae C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- petricosus, Conus petricosus M. Azuma, 1961 - syn of: Conasprella sieboldii (L.A. Reeve, 1848) - (CONIDAE)
- Petricoxenica, Subgenus Petricola (Petricoxenica) Vokes, 1976 † (VENERIDAE) (FOSSIL)
- petrifons, Cincinnatia petrifons F.G. Thompson, 1968 - (HYDROBIIDAE)
- petrii, Anachis petrii P.L. Duclos, 1846 - syn of: Suturoglypta pretrii (P.L. Duclos, 1846) - (COLUMBELLIDAE)
- petrii, Arianta petrii (M. von Kimakowicz, 1890) - (HELICIDAE)
- petrina, Amphinaias petrina (A.A. Gould, 1855) - (UNIONIDAE)
- petriola, Huxleyia petriola W.H. Dall, 1916 - syn of: Huxleyia munita (W.H. Dall, 1898) - (NUCINELLIDAE)
- petriola, Nucula petriola W.H. Dall, 1916 - syn of: Huxleyia munita (W.H. Dall, 1898) - (NUCULIDAE)
- Petriola, Subgenus Bocageia (Petriola) W.H. Dall, 1905 (SUBULINIDAE)
- petrochenkoi, Bonus petrochenkoi L.I. Moskalev, 1973 - (BATHYSCIADIIDAE)
- Petrochus, Genus Petrochus Horný, 1992 † (PSEUDOPHORIDAE) (FOSSIL)
- petrocoriensis, Ammonites petrocoriensis Coquand, 1859 † - syn of: Harleites petrocoriensis (Coquand 1859 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- petrocoriensis, Harleites petrocoriensis (Coquand 1859 †) - (COLLIGNONICERATIDAE) (FOSSIL)
- petrocyon, Ocenebra petrocyon B.F. Kensley & Pether, 1986 † - (MURICIDAE) (FOSSIL)
- Petroderma, syn of: Genus Samarangia W.H. Dall, 1902 (VENERIDAE)
- petroedei, Bythiospeum petroedei P. Glöer & J. Grego, 2015 - (HYDROBIIDAE)
- Petroglyphus, Genus Petroglyphus O.F. von Möllendorff, 1894 (BITHYNIIDAE)
- petrohanica, Alinda wagneri petrohanica (J. Urbanski, 1969) - (CLAUSILIIDAE)
- petroi, Unio petroi F. Paetel, 1890 - syn of: Unio terminalis J.R. Bourguignat, 1852 - (UNIONIDAE)
- petrolei, Leptoconus petrolei Martin, 1933 † - (CONIDAE) (FOSSIL)
- Petrolytoceras, Genus Petrolytoceras † (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- Petromactra, Subgenus Willimactra (Petromactra) Saul, 1973 † (MACTRIDAE) (FOSSIL)
- petronella, Helix petronella L. Pfeiffer, 1853 - syn of: Perpolita petronella (L. Pfeiffer, 1853) - (HELICIDAE)
- petronella, Merelina petronella (J.C. Melvill & R. Standen, 1901) - (RISSOIDAE)
- petronella, Perpolita petronella (L. Pfeiffer, 1853) - (ZONITIDAE)
- petronijevici, Valvata petronijevici Miloševic, 1973 † - (VALVATIDAE) (FOSSIL)
- petronijevici, Viviparus petronijevici Miloševic, 1972 † - (VIVIPARIDAE) (FOSSIL)
- petrophila, Abida petrophila É.A.A. Locard, 1894 - syn of: Abida pyrenaearia A. Michaud, 1831 - (CHONDRINIDAE)
- petrophila, Ripkeniella petrophila R. Hutterer & K. Groh, 1998 - (COCHLICELLIDAE)
- petrophila, Cernuella petrophila É.A.A. Locard, 1894 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- petrophila, Torrecoptis bacillaris petrophila (H.A. Pilsbry, 1930) - (UROCOPTIDAE)
- petrophila, Paravitrea petrophila (T.B. Bland, 1883) - (ZONITIDAE)
- petrophilla, Torrecoptis bacillaris petrophilla (H.A. Pilsbry, 1929) - (UROCOPTIDAE)
- Petrophysa, Subgenus Physa (Petrophysa) H.A. Pilsbry, 1926 (PHYSIDAE)
- petropolitana, Arca petropolitana H.B. Stenzel & A. Krause, 1957 † - (ARCIDAE) (FOSSIL)
- petropolitana, Vokesula smithvillensis petropolitana H.B. Stenzel & J. Twining, 1957 † - (CORBULIDAE) (FOSSIL)
- petropolitana, Cubitostrea petropolitana H.B. Stenzel & J. Twining, 1957 † - (OSTREIDAE) (FOSSIL)
- petropolitana, Segmentina petropolitana N.D. Kruglov & E.V. Soldatenko, 1997 - (PLANORBIDAE)
- petropolitana, Abra petropolitana H.B. Stenzel, 1957 † - (SEMELIDAE) (FOSSIL)
- petropolitana, Sportella petropolitana W.H. Dall, 1900 † - (SPORTELLIDAE) (FOSSIL)
- petropolitana, Moerella petropolitana H.B. Stenzel & A. Krause, 1957 † - (TELLINIDAE) (FOSSIL)
- petropolitanus, Calpitaria petropolitanus H.B. Stenzel & al., 1957 † - (VENERIDAE) (FOSSIL)
- petropolitanus, Pitar petropolitanus H.B. Stenzel & A. Krause † - (VENERIDAE) (FOSSIL)
- Petropoma, Genus Petropoma W.M. Gabb, 1877 (COLLONIIDAE)
- Petrorissa, syn of: Genus Georissa W.T. Blanford, 1864 (HYDROCENIDAE)
- petrosa, Macrochlamys petrosa (F.W. Hutton, 1834) - (ARIOPHANTIDAE)
- petrosa, Liracassis petrosa T.A. Conrad, 1865 † - (CASSIDAE) (FOSSIL)
- petrosa, Clypeomorus petrosa (W. Wood, 1828) - (CERITHIIDAE)
- petrosa, Albinaria petrosa (L. Pfeiffer, 1849) - (CLAUSILIIDAE)
- petrosa, Mitra petrosa G.B. II Sowerby, 1874 - (MITRIDAE)
- petrosa, Ostrea petrosa A. Fuchs, 1879 † - (OSTREIDAE) (FOSSIL)
- petrosa, Pteria petrosa (T.A. Conrad, 1853 †) - (PTERIIDAE) (FOSSIL)
- petrosa, Cylichnina petrosa (T.A. Conrad, 1849 †) - (RETUSIDAE) (FOSSIL)
- petrosa, Athleta petrosa (T.A. Conrad, 1833 †) - (VOLUTIDAE) (FOSSIL)
- petrosa astrosensis, Albinaria petrosa astrosensis H. Nordsieck, 2007 - (CLAUSILIIDAE)
- petrosa bigibbosula, Albinaria petrosa bigibbosula (C.A. Westerlund, 1878) - (CLAUSILIIDAE)
- petrosa chemnitziana, Clypeomorus petrosa chemnitziana (H.A. Pilsbry, 1901) - (CERITHIIDAE)
- petrosa isselii, Clypeomorus petrosa isselii (A. Pagenstecher, 1877) - (CERITHIIDAE)
- petrosa sibyllae, Albinaria petrosa sibyllae W.A. Fauer, 1993 - (CLAUSILIIDAE)
- petrosa tanocola, Albinaria petrosa tanocola H. Nordsieck, 2007 - (CLAUSILIIDAE)
- petroselinum, Spondylus petroselinum G.B. II Sowerby, 1847 - syn of: Spondylus foliaceus K. Schreibers, 1793 - (SPONDYLIDAE)
- petrosum, Dentalium petrosum T. Nuttall - (DENTALIIDAE)
- petrosum plicatospinosum, Astralium petrosum plicatospinosum H.A. Pilsbry, 1889 - syn of: Astralium confragosum plicatospinosum H.A. Pilsbry, 1889 - (TURBINIDAE)
- petrosus, Paludomus petrosus (A.A. Gould, 1844) - (PALUDOMIDAE)
- petrosus, Proplanulites petrosus Buckman † - (PERISPHINCTIDAE) (FOSSIL)
- petrosus, Strombus petrosus W. Wood, 1828 - syn of: Clypeomorus petrosa (W. Wood, 1828) - (STROMBIDAE)
- petrosus, Trochus petrosus J.T. Kuroda, 1928 ex T. Martyn MS - syn of: Astralium rhodostomus (J.B.P.A. Lamarck, 1822) - (TROCHIDAE)
- petrosus gennesi, Clypeomorus petrosus gennesi H. Fischer & L. Vignal, 1901 - syn of: Clypeomorus petrosa isselii (A. Pagenstecher, 1877) - (CERITHIIDAE)
- petrothauma, Astraea petrothauma S.S. Berry, 1940 - syn of: Megastraea turbanica (W.H. Dall, 1910) - (TURBINIDAE)
- petrovensis, Leviathania petrovensis (Pcelintsev, 1931 †) - (LEVIATHANIIDAE) (FOSSIL)
- petrovi, Belgrandiella petrovi D.G. Georgiev, 2014 - (HYDROBIIDAE)
- petrovi, Viriatella petrovi Lyashenko, 1957 † - (VIRIATELLIDAE) (FOSSIL)
- petrovici, Faustina petrovici (A.J. Wagner, 1914) - (HELICIDAE)
- petrovici, Melanopsis petrovici Š. Brusina, 1893 † - (MELANOPSIDAE) (FOSSIL)
- petrovici, Planorbis petrovici P.S. Pavlovic, 1931 † - (PLANORBIDAE) (FOSSIL)
- Petrovitrea, Subgenus Paravitrea (Petrovitrea) F.C. Baker, 1931 (ZONITIDAE)
- Petryoceras, Genus Petryoceras Flower, 1939 † (SPYROCERATIDAE) (FOSSIL)
- petschorae, Lopatinia petschorae (Keyserling, 1846 †) - (CUCULLAEIDAE) (FOSSIL)
- petschorica, Cypricardella petschorica Guskov, 1984 † - (CRASSATELLIDAE) (FOSSIL)
- petschorica, Praeundulomya petschorica Muromtseva & Guskov, 1981 † - (SANGUINOLITIDAE) (FOSSIL)
- petschorica, Janeia petschorica Guskov, 1984 † - (SOLEMYIDAE) (FOSSIL)
- petschorica, Cunavella petschorica (Guskov, 1984 †) - (VACUNELLIDAE) (FOSSIL)
- petschoricus, Parapronorites petschoricus Schulga-Nesterenko, 1916 † - syn of: Neopronorites permicus (Tchernow, 1907 †) - (PRONORITIDAE) (FOSSIL)
- petshorica, Anodonta petshorica V.I. Zhadin, 1938 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- Pettancylus, Subgenus Laevapex (Pettancylus) T. Iredale, 1943 (PLANORBIDAE)
- pettardi, Pupinella pettardi J.C.H. Crosse, 1874 - (PUPINIDAE)
- petterae, Beloceras petterae Yatskov, 1990 † - syn of: Beloceras tenuistriatum (d'Archiac & de Verneuil, 1842 †) - (BELOCERATIDAE) (FOSSIL)
- petterae, Praemeroceras petterae (J.D. Petersen, 1975 †) - (CHEILOCERATIDAE) (FOSSIL)
- petterae, Dimeroceras petterae J.D. Petersen, 1975 † - syn of: Praemeroceras petterae (J.D. Petersen, 1975 †) - (DIMEROCERATIDAE) (FOSSIL)
- petterdi, Amphithalamus petterdi J.W. Brazier, 1895 - syn of: Badepigrus pupoides (C.B. Adams, 1865) - (ANABATHRIDAE)
- petterdi, Amalda petterdi (R. Tate, 1893) - (ANCILLARIIDAE)
- petterdi, Tritonidea petterdi J.W. Brazier, 1872 - syn of: Maculotriton serriale (G.P. Deshayes, 1834) - (BUCCINIDAE)
- petterdi, Cystopelta petterdi R. Tate, 1881 - (CYSTOPELTIDAE)
- petterdi, Eulima petterdi R.H. Beddome, 1883 - (EULIMIDAE)
- petterdi, Stilifer petterdi R. Tate & W.L. May, 1901 - syn of: Scalenostoma lodderae (W.F. Petterd, 1884) - (EULIMIDAE)
- petterdi, Helix petterdi C.M.D.E. Legrand, 1871 - syn of: Roblinella agnewi (C.M.D.E. Legrand, 1871) - (HELICIDAE)
- petterdi, Fluvidona petterdi (E.A. Smith, 1882) - (HYDROBIIDAE)
- petterdi, Beddomeia petterdi W.F. Ponder & K.B. Clark, 1993 - (HYDROBIIDAE)
- petterdi, Notoacmea petterdi (J.E. Tenison-Woods, 1876) - (LOTTIIDAE)
- petterdi, Marginella petterdi R.H. Beddome, 1883 - syn of: Ovaginella ovulum (G.B. II Sowerby, 1846) - (MARGINELLIDAE)
- petterdi, Benthoxystus petterdi (J.W. Brazier in J.C.H. Crosse, 1870) - (MURICIDAE)
- petterdi, Trophon petterdi J.W. Brazier in J.C.H. Crosse, 1870 - syn of: Benthoxystus petterdi (J.W. Brazier in J.C.H. Crosse, 1870) - (MURICIDAE)
- petterdi, Ferrissia petterdi (G. Johnston, 1879) - (PLANORBIDAE)
- petterdi, Odostomia petterdi (J.H. Gatliff, 1900) - (PYRAMIDELLIDAE)
- petterdi, Rissoa petterdi J.W. Brazier, 1895 - syn of: Badepigrus pupoides (C.B. Adams, 1865) - (RISSOIDAE)
- petterdi, Fossarina petterdi J.C.H. Crosse, 1870 - (TROCHIDAE)
- petterdi peroni, Helix petterdi peroni C.M.D.E. Legrand, 1871 - syn of: Roblinella agnewi (C.M.D.E. Legrand, 1871) - (HELICIDAE)
- Petterdiana, Genus Petterdiana J.W. Brazier, 1896 (HYDROBIIDAE)
- petterdiana, Fluvidona petterdiana J.W. Brazier, 1875 - syn of: Austropyrgus petterdianus (J.W. Brazier, 1875) - (HYDROBIIDAE)
- petterdianus, Austropyrgus petterdianus (J.W. Brazier, 1875) - (HYDROBIIDAE)
- Petteroceras, Genus Petteroceras Bogoslovsky, 1962 † (PETTEROCERATIDAE) (FOSSIL)
- PETTEROCERATIDAE Becker & House, 1993 † - Family (CEPHALOPODA-AMMONOIDEA [Subclass]-AGONIATITIDA [Order]-PHARCICERATOIDEA [Superfamily]) (FOSSIL)
- Pettersia, Genus Pettersia Nicol, 1953 † (GLYCYMERIDIDAE) (FOSSIL)
- pettos, Coeloceras pettos F.A. von Quenstedt, 1843 † - (COELOCERATIDAE) (FOSSIL)
- pettos, Plectopylis pettos E.C. Von Martens, 1868 - syn of: Endothyrella pinacis (W.H. Benson, 1859) - (PLECTOPYLIDAE)
- petuchi, Hesperisternia petuchi G.J. Vermeij, 2006 † - (BUCCINIDAE) (FOSSIL)
- petuchi, Cancellaria petuchi M.G. Harasewych, R.E. Petit & A. Verhecken, 1992 - (CANCELLARIIDAE)
- petuchi, Varioconus petuchi A. Monteiro, C.M.L. Afonso & al., 2014 - (CONIDAE)
- petuchi, Clathrodrillia petuchi (D.L. Tippett, 1995) - (DRILLIIDAE)
- petuchi, Paziella petuchi (E.H. Vokes, 1992) - (MURICIDAE)
- petula, Tatula petula Polechová, 2013 † - (CYCLOCONCHIDAE) (FOSSIL)
- petulans, Sassia petulans (C. Hedley & W.L. May, 1908) - (RANELLIDAE)
- petulantus, Etheripecten petulantus C.O. Waterhouse, 1987 † - (HETEROPECTINIDAE) (FOSSIL)
- petulca, Venus petulca C. Linnaeus, 1758 - (VENERIDAE)
- petum, Sinumelon petum T. Iredale, 1937 - (CAMAENIDAE)
- petunculoides, Bathyarca petunculoides A. Scacchi, 1835 - syn of: Bathyarca pectunculoides (A. Scacchi, 1834) - (ARCIDAE)
- Petunculus, syn of: Genus Glycymeris A. da Costa, 1778 (GLYCYMERIDIDAE)
- petziae, Clanculus petziae F. Rubio, E. Rolán & P. Ryall, 2002 - (TROCHIDAE)
- petzyae, Clavatula petzyae F. Boyer & P. Ryall, 2006 - (CLAVATULIDAE)
- peucetana, Helix peucetana W. Kobelt, 1879 - syn of: Ambigua fuscolabiata mariannae (W. Kobelt, 1879) - (HELICIDAE)
- Peverilia, Genus Peverilia Arkell, 1941 † (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- pewzowi, Laeocathaica pewzowi (O.F. von Möllendorff, 1889) - (BRADYBAENIDAE)
- pexa, Egilomen pexa (J.C. Cox, 1868) - (CHAROPIDAE)
- pexata, Arca pexata T. Say, 1821 - syn of: Lunarca ovalis (J.G. Bruguière, 1789) - (ARCIDAE)
- pexata, Arca pexata T. Say, 1822 - syn of: Lunarca ovalis (J.G. Bruguière, 1789) - (ARCIDAE)
- pexata, Anadara pexata T. Say, 1821 - syn of: Lunarca ovalis (J.G. Bruguière, 1789) - (ARCIDAE)
- pexata, Corbicula pexata T. Prime, 1867 - syn of: Corbicula fluminea (O.F. Müller, 1774) - (CYRENIDAE)
- pexata, Loxonema pexata J.W. Hall, 1861 † - syn of: Palaeozygopleura hamiltoniae (J.W. Hall, 1859 †) - (LOXONEMATIDAE) (FOSSIL)
- pexata, Palaeozygopleura pexata J.W. Hall, 1861 † - syn of: Palaeozygopleura hamiltoniae (J.W. Hall, 1859 †) - (PALAEOZYGOPLEURIDAE) (FOSSIL)
- pexiphora, Dufoichaena pexiphora (R. Sturany, 1899) - (GASTROCHAENIDAE)
- pexiptychoides, Lyticoceras pexiptychoides Spath † - (NEOCOMITIDAE) (FOSSIL)
- pexiptychus, Kilianella pexiptychus Ughlig, 1882 † - syn of: Kilianella roubaudiana (A.V.M.D. D'Orbigny, 1850 †) - (NEOCOMITIDAE) (FOSSIL)
- Pexocodakia, syn of: Genus Codakia J.A. Scopoli, 1777 (LUCINIDAE)
- peybernesi, Cretaceomurex peybernesi D. Mongin & Peybernes, 1985 † - (SPINILOMATIDAE) (FOSSIL)
- peyrehoradensis, Costoanachis peyrehoradensis P. Lozouet, 2015 - (COLUMBELLIDAE)
- peyrei, Protogrammoceras peyrei Dubar, 1978 † - syn of: Fuciniceras mellahense Dubar, 1961 † - (HILDOCERATIDAE) (FOSSIL)
- peyreirense, Calliostoma peyreirense A.E.M. Cossmann & M.A. Peyrot, 1916 † - (CALLIOSTOMATIDAE) (FOSSIL)
- peyreirensis, Unitas peyreirensis (M.A. Peyrot, 1928 †) - (CANCELLARIIDAE) (FOSSIL)
- peyreirensis, Cypraea peyreirensis A.E.M. Cossmann & M.A. Peyrot, 1922 † - (CYPRAEIDAE) (FOSSIL)
- peyreirensis, Alvania peyreirensis Cossmann & Peyrot, 1919 † - (RISSOIDAE) (FOSSIL)
- peyreirensis, Niveria peyreirensis (A.E.M. Cossmann & M.A. Peyrot, 1924) - (TRIVIIDAE)
- peyrerensis, Euthriofusus peyrerensis M.A. Peyrot, 1925 † - (FASCIOLARIIDAE) (FOSSIL)
- peyroli, Lutetia peyroli A.E.M. Cossmann, 1922 † - (LUTETIIDAE) (FOSSIL)
- peyroti, Dalliella brusinai peyroti A.E.M. Cossmann, 1895 † - (CAPULIDAE) (FOSSIL)
- peyroti, Cerithium peyroti (G.F. Dollfus, 1909 †) - (CERITHIIDAE) (FOSSIL)
- peyroti, Lyncina peyroti F.A. Schilder, 1932 † - (CYPRAEIDAE) (FOSSIL)
- peyroti, Epitonium peyroti (M.E.A. de Boury †) - (EPITONIIDAE) (FOSSIL)
- peyroti, Mitrolumna peyroti P. Lozouet, 2015 - (MITROMORPHIDAE)
- Peyrotia, Genus Peyrotia A.E.M. Cossmann, 1912 † (TURRITELLIDAE) (FOSSIL)
- peyroulesensis, Adiakritobelus peyroulesensis N.M.M. Janssen, 2009 † - (MESOHIBOLITHIDAE) (FOSSIL)
- peyssonneli, Parasteroceras peyssonneli Rakús & Guex, 2002 † - (ARIETITIDAE) (FOSSIL)
- peytonense, Reticycloceras peytonense W.J. Gordon, 1964 † - (SPYROCERATIDAE) (FOSSIL)
- peytoni, Ostrea peytoni H.G. Richards, 1947 † - (OSTREIDAE) (FOSSIL)
- Peytonoceras, Genus Peytonoceras Saunders, 1966 † (GIRTYOCERATIDAE) (FOSSIL)
- pezanti, Mitra pezanti A.E.M. Cossmann, 1907 † - syn of: Mitreola pezanti (A.E.M. Cossmann, 1907 †) - (MITRIDAE) (FOSSIL)
- pezanti, Mitreola pezanti (A.E.M. Cossmann, 1907 †) - (VOLUTOMITRIDAE) (FOSSIL)
- Pezantia, syn of: Genus Zebinella O.A.L. Mörch, 1876 (RISSOINIDAE)
- Pezzolia, Genus Pezzolia M. Bodon & F.L. Giusti, 1986 (HYDROBIIDAE)
- pezzolii, Platyla pezzolii H.D. Boeters, E. Gittenberger & P. Subai, 1989 - (ACICULIDAE)
- pezzolii, Iglica pezzolii H.D. Boeters, 1971 - (HYDROBIIDAE)
- pfaffi, Fusus pfaffi O.A.L. Mörch, 1876 - syn of: Colus sabini (J.E. Gray, 1824) - (FASCIOLARIIDAE)
- Pfaffia, syn of: Genus Euglandina P. Fischer & J.C.H. Crosse, 1870 (SPIRAXIDAE)
- pfaffii, Siphonorbis pfaffii O.A.L. Mörch, 1876 - syn of: Colus sabini (J.E. Gray, 1824) - (BUCCINIDAE)
- pfaffii, Fusus pfaffii O.A.L. Mörch, 1876 - syn of: Colus sabini (J.E. Gray, 1824) - (FASCIOLARIIDAE)
- pfaffstaettensis, Mohrensternia pfaffstaettensis T. Kowalke & M. Harzhauser, 2004 † - (RISSOIDAE) (FOSSIL)
- pfefferae, Muensteroceras pfefferae Miller & Werner, 1942 † - (MUENSTEROCERATIDAE) (FOSSIL)
- pfefferi, Siphonalia pfefferi G.B. III Sowerby, 1900 - (BUCCINIDAE)
- pfefferi, Savatieria pfefferi H. Strebel, 1905 - syn of: Savatieria coppingeri (E.A. Smith, 1881) - (BUCCINIDAE)
- pfefferi, Cerithium pfefferi R.W. Dunker, 1882 - (CERITHIIDAE)
- pfefferi, Skenella pfefferi H.H. Suter, 1909 - (CINGULOPSIDAE)
- pfefferi, Tomellana pfefferi (H. Strebel, 1912) - (CLAVATULIDAE)
- pfefferi, Tomella pfefferi H. Strebel, 1912 - syn of: Tomellana pfefferi (H. Strebel, 1912) - (CLAVATULIDAE)
- pfefferi, Corbula pfefferi H.B. Preston, 1907 - syn of: Potamocorbula abbreviata (H.B. Preston, 1907) - (CORBULIDAE)
- pfefferi, Potamocorbula pfefferi H.B. Preston, 1907 - syn of: Potamocorbula abbreviata (H.B. Preston, 1907) - (CORBULIDAE)
- pfefferi, Helicocranchia pfefferi A.L. Massy, 1907 - (CRANCHIIDAE)
- pfefferi, Diaphana pfefferi (H. Strebel, 1908) - (DIAPHANIDAE)
- pfefferi, Eatoniella pfefferi (H.H. Suter, 1909) - (EATONIELLIDAE)
- pfefferi, Abralia pfefferi L.M.A.O.E. Joubin, 1896 - syn of: Abraliopsis morisii (J.B. Vérany, 1839) - (ENOPLOTEUTHIDAE)
- pfefferi, Nassa pfefferi R.A. Philippi, 1844 † - syn of: Tritia pfeifferi (R.A. Philippi, 1844 †) - (NASSARIIDAE) (FOSSIL)
- pfefferi, Retusa pfefferi H. Strebel, 1908 - syn of: Diaphana pfefferi (H. Strebel, 1908) - (RETUSIDAE)
- pfefferi, Brookula pfefferi A.W.B. Powell, 1951 - (SEGUENZIOIDEA (UNASSIGNED))
- pfefferi, Metasepia pfefferi W.E. Hoyle, 1885 - (SEPIIDAE)
- pfefferi, Sepiola pfefferi G.J. Von Grimpe, 1921 - (SEPIOLIDAE)
- pfefferi, Coelocentrum pfefferi W.H. Dall, 1896 - (UROCOPTIDAE)
- Pfefferia, syn of: Genus Chlanidota E.C. Von Martens, 1878 (BUCCINIDAE)
- pfefferianus, Melampus pfefferianus P.M.A. Morelet, 1860 - (ELLOBIIDAE)
- Pfefferiopsis, syn of: Genus Berryteuthis A. Naef, 1921 (GONATIDAE)
- Pfefferiteuthis, Subgenus Abraliopsis (Pfefferiteuthis) Tsuchiya & Okutani, 1988 (ENOPLOTEUTHIDAE)
- pfeiferi, Falsipyrgula pfeiferi (E. Weber, 1927) - (HYDROBIIDAE)
- pfeiferi, Orculella pfeiferi B. Hausdorf, 1996 - (ORCULIDAE)
- pfeifferi, Ampelita pfeifferi E. Fischer-Piette, 1952 - (ACAVIDAE)
- pfeifferi, Antonella pfeifferi C.M. Cooke & Y. Kondo, 1960 - (ACHATINELLIDAE)
- pfeifferi, Newcombia pfeifferi (W. Newcomb, 1853) - (ACHATINELLIDAE)
- pfeifferi, Achatina pfeifferi R.W. Dunker, 1845 - (ACHATINIDAE)
- pfeifferi, Lanistes pfeifferi (J.R. Bourguignat, 1879) - (AMPULLARIIDAE)
- pfeifferi, Astarte pfeifferi R.A. Philippi, 1849 - syn of: Crassinella lunulata (T.A. Conrad, 1834) - (ASTARTIDAE)
- pfeifferi, Calocochlia cumingii pfeifferi C.G. Semper, 1877 - (BRADYBAENIDAE)
- pfeifferi, Siphonalia pfeifferi G.B. III Sowerby, 1900 - syn of: Siphonalia pfefferi G.B. III Sowerby, 1900 - (BUCCINIDAE)
- pfeifferi, Savatieria pfeifferi H. Strebel, 1905 - syn of: Savatieria coppingeri (E.A. Smith, 1881) - (BUCCINIDAE)
- pfeifferi, Buccinum pfeifferi R.A. Philippi, 1844 † - syn of: Tritia pfeifferi (R.A. Philippi, 1844 †) - (BUCCINIDAE) (FOSSIL)
- pfeifferi, Semicassis pfeifferi J.G. Hidalgo, 1871 - syn of: Semicassis bisulcata (G.H. Schubert & J.A. Wagner, 1829) - (CASSIDAE)
- pfeifferi, Rhinoclavis pfeifferi R.W. Dunker, 1882 - syn of: Rhinoclavis sordidula (A.A. Gould, 1849) - (CERITHIIDAE)
- pfeifferi, Delima pfeifferi (H.C. Küster, 1850) - (CLAUSILIIDAE)
- pfeifferi, Cochlicopa pfeifferi (C.D. Weinland, 1874) - (COCHLICOPIDAE)
- pfeifferi, Crassinella pfeifferi R.A. Philippi, 1849 - syn of: Crassinella lunulata (T.A. Conrad, 1834) - (CRASSATELLIDAE)
- pfeifferi, Cyclophorus pfeifferi L.A. Reeve, 1861 - (CYCLOPHORIDAE)
- pfeifferi, Gibberula pfeifferi M.J. Faber, 2004 - (CYSTISCIDAE)
- pfeifferi, Mytilopsis pfeifferi R.W. Dunker, 1853 - syn of: Mytilopsis sallei (C.A. Récluz, 1849) - (DREISSENIDAE)
- pfeifferi, Allochroa pfeifferi R.W. Dunker, 1860 - syn of: Allochroa layardi (H. Adams & A. Adams, 1855) - (ELLOBIIDAE)
- pfeifferi, Laemodonta pfeifferi R.W. Dunker in L. Pfeiffer, 1860 - syn of: Allochroa layardi (H. Adams & A. Adams, 1855) - (ELLOBIIDAE)
- pfeifferi, Asperiscala pfeifferi M.E.A. de Boury, 1913 - syn of: Epitonium candeanum (A.V.M.D. D'Orbigny, 1842) - (EPITONIIDAE)
- pfeifferi, Pseudolatirus pfeifferi (R.A. Philippi, 1846 †) - (FASCIOLARIIDAE) (FOSSIL)
- pfeifferi, Orpiella pfeifferi (R.A. Philippi, 1845) - (HELICARIONIDAE)
- pfeifferi, Bythiospeum pfeifferi (S. Clessin, 1890) - (HYDROBIIDAE)
- pfeifferi, Vitrella pfeifferi S. Clessin, 1890 - syn of: Bythiospeum pfeifferi (S. Clessin, 1890) - (HYDROBIIDAE)
- pfeifferi, Diplodon pfeifferi R.W. Dunker, 1848 - syn of: Diplodon multistriatus (I. Lea, 1831) - (HYRIIDAE)
- pfeifferi, Leptospatha pfeifferi J. Germain, 1907 - syn of: Aspatharia dahomeyensis (I. Lea, 1859) - (IRIDINIDAE)
- pfeifferi, Fagotia pfeifferi J.R. Bourguignat, 1884 - syn of: Esperiana esperi (A.E.J. Férussac, 1823) - (MELANOPSIDAE)
- pfeifferi, Paladilhia pfeifferi S. Clessin, 1890 - syn of: Bythiospeum pfeifferi (S. Clessin, 1890) - (MOITESSIERIIDAE)
- pfeifferi, Tritia pfeifferi (R.A. Philippi, 1844 †) - (NASSARIIDAE) (FOSSIL)
- pfeifferi, Natica pfeifferi R.A. Philippi, 1851 - syn of: Polinices lacteus L. Guilding, 1834 - (NATICIDAE)
- pfeifferi, Orculella pfeifferi B. Hausdorf, 1996 - (ORCULIDAE)
- pfeifferi, Corona pfeifferi (J.G. Hidalgo, 1869) - (ORTHALICIDAE)
- pfeifferi, Biomphalaria pfeifferi (C.F.F. von Krauss, 1848) - (PLANORBIDAE)
- pfeifferi, Chondropoma pfeifferi C.G. Aguayo, 1945 - (POMATIIDAE)
- pfeifferi, Pupina pfeifferi W.L.H. Dohrn, 1862 - (PUPINIDAE)
- pfeifferi, Raphaulus pfeifferi A. Issel, 1874 - (PUPINIDAE)
- pfeifferi, Odostomia pfeifferi (S. Clessin, 1902) - (PYRAMIDELLIDAE)
- pfeifferi, Turbonilla pfeifferi S. Clessin, 1902 - syn of: Odostomia pfeifferi (S. Clessin, 1902) - (PYRAMIDELLIDAE)
- pfeifferi, Solen pfeifferi R.W. Dunker, 1862 - (SOLENIDAE)
- pfeifferi, Streptaxis pfeifferi (H.A. Pilsbry, 1930) - (STREPTAXIDAE)
- pfeifferi, Rhodea pfeifferi J.C.H. Crosse, 1876 - (SUBULINIDAE)
- pfeifferi, Tortaxis pfeifferi (K.T. Menke, 1856) - (SUBULINIDAE)
- pfeifferi, Oxyloma pfeifferi E.A. Rossmässler, 1835 - syn of: Oxyloma elegans (A. Risso, 1826) - (SUCCINEIDAE)
- pfeifferi, Tegula pfeifferi (R.A. Philippi, 1846) - (TEGULIDAE)
- pfeifferi, Triphora pfeifferi J.C.H. Crosse & P.H. Fischer, 1865 - syn of: Hedleytriphora scitula (A. Adams, 1854) - (TRIPHORIDAE)
- pfeifferi, Truncatella pfeifferi E.C. Von Martens, 1860 - (TRUNCATELLIDAE)
- pfeifferi, Unio pfeifferi R.W. Dunker, 1848 - syn of: Diplodon multistriatus (I. Lea, 1831) - (UNIONIDAE)
- pfeifferi, Anodonta pfeifferi J.R. Bourguignat, 1881 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- pfeifferi, Holospira pfeifferi (K.T. Menke, 1847) - (UROCOPTIDAE)
- pfeifferi, Anoma pfeifferi E.C. Von Martens, 1860 - syn of: Anoma gossei (L. Pfeiffer, 1846) - (UROCOPTIDAE)
- pfeifferi, Poeycoptis lituus pfeifferi C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- pfeifferi, Vitrina pfeifferi W. Newcomb, 1861 - syn of: Vitrina pellucida alaskana W.H. Dall, 1905 - (VITRINIDAE)
- pfeifferi carpenteri, Tegula pfeifferi carpenteri R.W. Dunker, 1859 - (TEGULIDAE)
- pfeifferi cincta, Corona pfeifferi cincta H. Strebel, 1909 - syn of: Corona pfeifferi (J.G. Hidalgo, 1869) - (ORTHALICIDAE)
- pfeifferi decorata, Newcombia pfeifferi decorata H.A. Pilsbry & C.M. Cooke, 1912 - (ACHATINELLIDAE)
- pfeifferi eugrapta, Achatina pfeifferi eugrapta H.A. Pilsbry - (ACHATINIDAE)
- pfeifferi honomuniensis, Newcombia pfeifferi honomuniensis H.A. Pilsbry & C.M. Cooke, 1912 - (ACHATINELLIDAE)
- pfeifferi minima, Holospira pfeifferi minima E.C. Von Martens, 1897 - syn of: Allocoryphe minima (E.C. Von Martens, 1897) - (UROCOPTIDAE)
- pfeifferi percostata, Holospira pfeifferi percostata H.A. Pilsbry, 1902 - syn of: Allocoryphe minima (E.C. Von Martens, 1897) - (UROCOPTIDAE)
- pfeifferi sarsi, Succinea pfeifferi sarsi B. Esmark & Z.A. Hoyer, 1886 - syn of: Oxyloma sarsii (B. Esmark & Z.A. Hoyer, 1886) - (SUCCINEIDAE)
- pfeifferi ualapuensis, Newcombia pfeifferi ualapuensis H.A. Pilsbry & C.M. Cooke, 1912 - syn of: Newcombia cinnamomea ualapuensis H.A. Pilsbry & C.M. Cooke, 1912 - (ACHATINELLIDAE)
- Pfeifferia, Subgenus Chloraea (Pfeifferia) J.E. Gray, 1853 (BRADYBAENIDAE)
- pfeifferiana, Calocochlia pfeifferiana (C.G. Semper, 1877) - (BRADYBAENIDAE)
- pfeifferiana, Corbicula pfeifferiana T. Prime, 1867 - syn of: Corbicula fluminea (O.F. Müller, 1774) - (CYRENIDAE)
- pfeifferiana, Troschelviana pfeifferiana (R. Arango in L. Pfeiffer, 1866) - (HELICINIDAE)
- pfeifferiana, Aspatharia pfeifferiana (A.C. Bernardi, 1860) - (IRIDINIDAE)
- pfeifferiana, Aspatharia pfeifferiana M. Connolly, 1939 - syn of: Aspatharia subreniformis (G.B. Sowerby, 1867) - (IRIDINIDAE)
- pfeifferiana, Aspatharia pfeifferiana F. Haas, 1929 - syn of: Aspatharia dahomeyensis (I. Lea, 1859) - (IRIDINIDAE)
- pfeifferiana, Tectarius pfeifferiana H.C. Weinkauff, 1882 - syn of: Tectarius antonii (R.A. Philippi, 1846) - (LITTORINIDAE)
- pfeifferiana, Margaritana pfeifferiana A.C. Bernardi, 1860 - syn of: Aspatharia pfeifferiana (A.C. Bernardi, 1860) - (MARGARITIFERIDAE)
- pfeifferianum, Chondropoma pfeifferianum (F. Poey, 1851) - (POMATIIDAE)
- pfeifferianum camoense, Chondropoma pfeifferianum camoense C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- pfeifferianum ganuzaense, Chondropoma pfeifferianum ganuzaense C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- pfeifferianum haasi, Chondropoma pfeifferianum haasi C.G. Aguayo & M.L. Jaume, 1953 - (POMATIIDAE)
- pfeifferianus, Reticutriton pfeifferianus (L.A. Reeve, 1844) - (RANELLIDAE)
- pfeifferianus, Triton pfeifferianus L.A. Reeve, 1844 - syn of: Reticutriton pfeifferianus (L.A. Reeve, 1844) - (RANELLIDAE)
- Pfeiffericoptis, Genus Pfeiffericoptis M.L. Jaume & C. de la Torre, 1972 (UROCOPTIDAE)
- Pfeifferiella, Genus Pfeifferiella W.K. Weyrauch, 1957 (CLAUSILIIDAE)
aaa
abx
ack
acy
adn
aer
afs
ajd
alc
alj
alu
amc
ams
and
anh
anp
anu
apl
arb
ard
arh
ars
asr
atl
atu
aus
aut
bab
baj
bao
bas
baw
bem
bes
bid
bim
bit
bli
bom
bos
bov
bre
bri
bry
bum
bys
caa
cak
cam
cao
cas
cau
cem
ces
che
chk
chy
cio
cle
cob
coh
com
con
coo
cos
cot
cre
cri
cru
cud
cuo
cuy
cym
daa
dam
dav
ded
dem
deo
det
dib
dih
dir
dit
dom
dos
duc
duq
eag
ecr
egg
elf
elp
enh
eov
erf
erz
eud
eus
exb
exl
exy
faa
fan
fat
fes
fim
fle
flu
fos
fre
fuf
fur
fut
gaa
gam
gav
geo
gie
gis
gle
glu
goo
gre
gru
gug
guz
haa
ham
has
heb
hem
hes
hif
his
hom
hou
hun
hye
iac
ilm
imt
ind
inf
ing
int
inu
irm
isp
jaa
jao
jaw
joi
juk
kaa
kao
kaz
kes
kio
koc
kot
kuk
laa
lad
laf
lan
las
lau
lec
leo
leq
lew
lim
lio
liu
loo
lub
lun
luv
maa
mad
mah
mam
mao
mas
mav
mee
mem
mes
mey
mid
min
mio
mit
moe
moo
mos
mum
mut
nab
nao
nav
nel
neq
nex
nih
niu
noe
nou
nue
oaf
obn
obu
oci
oke
olk
oos
orc
oro
osu
ove
paa
paf
pam
paq
pas
pau
pay
pem
pes
pfi
phl
pid
pio
ple
plo
pom
pos
pre
pro
pru
psi
pul
pum
pup
put
pys
qag
qub
rab
rah
ras
red
reh
reu
rhu
rin
roc
rot
rox
rue
ruh
ryd
saa
sai
san
sao
sav
sce
sci
scy
sem
sen
ses
shl
sih
sin
sio
smo
som
soy
sph
spj
sra
stg
sts
suc
sum
suv
szo
tab
tal
taq
tay
ten
teo
tes
tha
thl
tif
toc
tos
tre
trl
try
tuc
tus
uac
ume
uni
urd
vaa
vap
vas
vep
ves
vid
vip
vis
vob
vup
waa
wam
weg
who
wom
xac
yaa
yot
zaa
zem
zoo
|