- pachyphylla Jonas, 1839 = Bassina pachyphylla (family Veneridae – Chioninae)

- pacifica Berry, 1919 = Placiphorella atlantica (family Mopaliidae)

- pacifica Oliver, 1915 = Sinezona pacifica (family Scissurellidae)

- pacificus Issel, 1908 = Leachia pacificus (family Cranchiidae)

- pagoda May, 1911 = Eucithara pagoda (family Conidae – Mangeliinae)

- pagodella Hedley, 1902 = Ascorhis victoriae (family Hydrobiidae – Hydrobiinae)

- pagodula A. Adams, 1862 = Alaba monile (family Litiopidae)

- paivae Crosse, 1864 = Bedeva paivae (family Muricidae – Ergalataxinae)

- palinodia Iredale, 1931 = Semicassis thomsoni (family Tonnidae – Phaliinae)

- pallens Burn, 1957 = Polybranchia pallens (family Caliphyllidae)

- pallida Pease, 1870 = Bouchetriphora pallida (family Triphoridae – Triphorinae)

- pallidulus Hedley, 1906 = Aesopus pallidulus (family Columbellidae – Atiliinae)

- pallidum Reeve, 1844 = Fulvia tenuicostata (family Cardiidae – Laevicardiinae)

- pallidus Hoyle, 1885 = Octopus pallidus (family Octopodidae – Octopodinae)

- palmata Owen, 1881 = Sepia apama (family Sepiidae)

- palmiferus Sowerby, 1841 = Chicoreus denudatus (family Muricidae – Muricinae)

- paludinella authors (not Reeve, 1857) = Afrolittorina praetermissa (family Littorinidae – Littorininae)

- pandoriformis Stutchbury, 1830 = Myadora pandoriformis (family Myochamidae)

- papillaris Swainson, 1840 = Ericusa papillosa (family Volutidae – Cymbiinae)

- papillosa Swainson, 1822 = Ericusa papillosa (family Volutidae – Cymbiinae)

- paradisiaca Pilsbry, 1897 = Tatea huonensis (family Hydrobiidae – Tateinae)

- parata Iredale, 1936 = Volvulella rostrata (family Retusidae)

- pardalis A. Adams & Angas, 1864 = Belloliva triticea (family Olivellidae)

- parkinsoniana Perry, 1811 = Sassia parkinsoniana (family Ranellidae – Cymatiinae)

- parmophoidea Quoy & Gaimard, 1834 = Tugali parmophoidea (family Fissurellidae – Emarginulinae)

- parthenopeum von Salis, 1793 = Cymatium parthenopeum (family Ranellidae – Cymatiinae)

- parva Angas, 1878 = Naccula parva (family Nacellidae)

- parva Swainson, 1856 = Marinula parva (family Ellobiidae – Pedipedinae)

- parvula Guilding in Mörch, 1863 = Aplysia parvula (family Aplysiidae – Aplysiinae)

- parvula Sowerby, 1896 = Etrema denseplicata (family Conidae – Clathurellinae)

- parvulus Tillier & Ponder, 1992 = Smeagol parvulus (family Smeagolidae)

- parvum Petit, 1853 = Spisula trigonella (family Mactridae – Mactrinae)

- parvus Hedley, 1896 = Pugnus parvus (family Cystiscidae – Granulininae)

- parysatis Iredale, 1954 = Sepia apama (family Sepiidae)

- pastinacea Reeve, 1848 = Penion mandarinus (family Buccinidae – Siphonaliinae)

- patelloides Quoy & Gaimard, 1832 = Onchidella nigricans (family Onchidiidae)

- patonga Laseron, 1954 = Liotella annulata (family Turbinidae – Skeneinae)

- pattisoni Cotton, 1944 = Mesoginella turbinata (family Marginellidae – Marginellinae)

- patula A. Adams & Angas, 1863 = Fossarina patula (family Trochidae – Trochinae)

- paucilamellata Dunker, 1863 = Bassina pachyphylla (family Veneridae – Chioninae)

- pauloconvexum Iredale, 1931 = Sinum zonale (family Naticidae – Sininae)

- paulucciae Crosse, 1863 = Musculus nanus (family Mytilidae)

- pauper Gould, 1850 = Nassarius pauper (family Nassariidae – Nassariinae)

- pauperatus Lamarck, 1822 = Nassarius pauperatus (family Nassariidae – Nassariinae)

- pectinata Hedley, 1902 = Cosa pectinata (family Philobryidae)

- pectinata Lamarck, 1819 = Neotrigonia margaritacea (family Trigoniidae)

- pectinata Tate & May, 1900 = Condylocardia pectinata (family Condylocardiidae – Condylocardiinae)

- peculiaris Abraham, 1877 = Doriopsilla peculiaris (family Dendrodorididae)

- pelagica Linnaeus, 1758 = Scyllaea pelagica (family Scyllaeidae)

- pelagicus Hoyle, 1885 = Amphitretus pelagicus (family Amphitretidae)

- pelliserpentis Quoy & Gaimard, 1836 = Sypharochiton pelliserpentis (family Chitonidae – Chitoninae)

- pellucida Chun, 1910 = Teuthowenia pellucida (family Cranchiidae)

- pellucida Tate & May, 1900 = Eatoniella pellucida (family Eatoniellidae)

- pellucida Tenison Woods, 1877 = Serrata mustelina (family Marginellidae – Marginellinae)

- pellucidus Cooper, 1841 = Leuconopsis pellucidus (family Ellobiidae – Pedipedinae)

- pellyae Nevill, 1881 = Badepigrus pupoides (family Anabathridae)

- pelyx Burn in Burn & Bell, 1974 = Retusa pelyx (family Retusidae)

- penelevis Cotton, 1930 = Glycymeris striatularis (family Glycymerididae)

- penelevis Verco, 1907 = Limopsis penelevis (family Limopsidae)

- pensa Iredale, 1940 = Bedeva paivae (family Muricidae – Ergalataxinae)

- pentagonalis Verco, 1896 = Exomilus pentagonalis (family Conidae – Rhaphitominae)

- pentagonostoma Angas, 1867 = Trimusculus conicus (family Trimusculidae)

- perdix Wood, 1828 = Phasianella ventricosa (family Phasianellidae – Phasianellinae)

- peregrina Powell, 1947 = Babelomurex lischkeanus (family Muricidae – Coralliophilinae)

- perexigua Tate & May, 1900 = Fusceulima perexigua (family Eulimidae)

- perfuga Iredale, 1930 = Paphies elongata (family Mesodesmatidae – Mesodesmatinae)

- pergradata Verco, 1904 = Vercomaris pergradata (family Cancellariidae – Cancellariinae)

- perillustris Iredale, 1925 = Veprichlamys perillustris (family Pectinidae – Chlamydinae)

- peritrema Tenison Woods, 1880 = Nassarius nigellus (family Nassariidae – Nassariinae)

- perksi Verco, Cotton & Godfrey, 1932 = Mitra badia (family Mitridae – Mitrinae)

- perobliqua Tate, 1892 = Codakia perobliqua (family Lucinidae)

- peroniana peroniana Iredale, 1929 = Xenophora peroniana peroniana (family Xenophoridae)

- peroniana Iredale, 1924 = Thraciopsis peroniana (family Thraciidae)

- peroniana Iredale, 1929 = Sassia sexcostata (family Ranellidae – Cymatiinae)

- peroniana Iredale, 1936 = Adamnestia arachis (family Cylichnidae)

- peronianus Iredale, 1931 = Conus anemone (family Conidae – Coninae)

- peronii Blainville, 1825 = Scutellastra peronii (family Patellidae)

- peronii Lamarck, 1818 = Katelysia peronii (family Veneridae – Tapetinae)

- peronii Philippi, 1846 = Phasianotrochus eximius (family Trochidae – Trochinae)

- perplexa Burn, l957 = Digidentis perplexa (family Chromodorididae)

- perplexa Pilsbry, 1891 = Scutellastra chapmani (family Patellidae)

- perpolita May, 1919 = Onoba perpolita (family Rissoidae – Rissoinae)

- persephone Berry, 1918 = Opisthoteuthis persephone (family Opisthoteuthidae)

- personatus Philippi, 1849 = Clanculus personatus (family Trochidae – Trochinae)

- perspecta Iredale, 1929 = Ericusa sowerbyi (family Volutidae – Cymbiinae)

- persquamifer Iredale, 1939 = Lima nimbifer (family Limidae)

- pertranslucida May, 1912 = Putilla porcellana (family Seguenziidae – Davisianinae)

- pertumidus May, 1915 = Onoba pertumidus (family Rissoidae – Rissoinae)

- pervalida Cotton, 1931 = Myadora pervalida (family Myochamidae)

- petalifera Hedley & May, 1908 = Liotella petalifera (family Turbinidae – Skeneinae)

- petterdi Beddome, 1882 = Curveulima petterdi (family Eulimidae)

- petterdi Beddome, 1883 = Ovaginella ovulum (family Marginellidae – Marginellinae)

- petterdi Brazier, 1895 = Badepigrus pupoides (family Anabathridae)

- petterdi Crosse, 1870 = Fossarina petterdi (family Trochidae – Trochinae)

- petterdi Crosse, 1870 = Litozamia petterdi (family Muricidae – Trophoninae)

- petterdi Gatliff, 1900 = Puposyrnola petterdi (family Pyramidellidae – Pyramidellinae)

- petterdi Tate & May, 1901 = Scalenostoma lodderae (family Eulimidae)

- petterdi Tate, 1893 = Amalda petterdi (family Olividae – Ancillariinae)

- petterdi Tate, 1893 = Amalda petterdi (family Olividae – Ancillariinae)

- petterdi Tenison Woods, 1876 = Notoacmea petterdi (family Lottiidae – Lottiinae)

- petulans Hedley & May, 1908 = Sassia petulans (family Ranellidae – Cymatiinae)

- pfefferi Massy, 1907 = Helicocranchia pfefferi (family Cranchiidae)

- pfeifferi Crosse & Fischer, 1865 = Hedleytriphora scitula (family Triphoridae – Triphorinae)

- phasianella Angas, 1867 = Alaba monile (family Litiopidae)

- philipineri Tenison Woods, 1877 = Epidirona philipineri (family Turridae – Crassispirinae)

- philippensis Watson, 1881 = Gazameda gunnii (family Turritellidae – Turritellinae)

- philippensis Watson, 1881 = Spectamen philippensis (family Solariellidae)

- philippi Koch, 1843 = Clanculus philippi (family Trochidae – Trochinae)

- philomenae Tenison Woods, 1876 = Clanculus philippi (family Trochidae – Trochinae)

- philomenae Tenison Woods, 1876 = Etrema denseplicata (family Conidae – Clathurellinae)

- pica Reeve, 1845 = Waimatea obscura (family Volutomitridae)

- pictum Philippi, 1846 = Bembicium nanum (family Littorinidae – Lacuninae)

- pictum Reeve, 1846 = Eunaticina umbilicata (family Naticidae – Naticinae)

- picturata A. Adams & Angas, 1864 = Cantharidella picturata (family Trochidae – Trochinae)

- picturata H. & A. Adams, 1863 = Leiopyrga lineolaris (family Trochidae – Umboniinae)

- pictus Adams & Angas, 1863 = Guraleus pictus (family Conidae – Mangeliinae)

- pictus Wood, 1828 = Thalotia conica (family Trochidae – Trochinae)

- pigra Forbes, 1850 = Hinea brasiliana (family Planaxidae – Planaxinae)

- pigra Forbes, 1850 = Hinea brasiliana (family Planaxidae – Planaxinae)

- pilata Hedley, 1915 = Nassarius pauper (family Nassariidae – Nassariinae)

- pilsbryanus Bednall, 1897 = Stenochiton pilsbryanus (family Ischnochitonidae – Ischnochitoninae)

- pilsbryi Sykes, 1896 = Acanthochitona pilsbryi (family Acanthochitonidae – Acanthochitoninae)

- pilula eucalaensis Cate, 1979 = Niveria globosa (family Triviidae)

- pilula Kiener, 1843 = Niveria globosa (family Triviidae)

- pilula Kiener, 1843 = Niveria globosa (family Triviidae)

- pinguis Crosse & Fischer, 1864 = Anapella cycladea (family Mesodesmatidae – Davilinae)

- pipere Reeve, 1865 = Mesoginella strangei (family Marginellidae – Marginellinae)

- piperita Gray, 1825 = Notocypraea piperita (family Cypraeidae – Pustulariinae)

- pisiformis Thiele, 1930 = Cystiscus cymbalum (family Cystiscidae – Cystiscinae)

- pisinna Gatliff & Gabriel, 1908 = Gabrielona pisinna (family Phasianellidae – Gabrieloninae)

- pistachia Lamarck, 1819 = Barbatia pistachia (family Arcidae – Arcinae)

- pisulum Schilder, 1932 = Niveria globosa (family Triviidae)

- pisulum Schilder, 1932 = Niveria globosa (family Triviidae)

- pisum Gaskoin, 1846 = Niveria globosa (family Triviidae)

- pisum Gaskoin, 1846 = Niveria globosa (family Triviidae)

- pita Marcus, 1955 = Doto pita (family Dotidae)

- placidum Philippi, 1844 = Placamen placidum (family Veneridae – Chioninae)

- planctonicum Pfeffer, 1912 = Lycoteuthis lorigera (family Lycoteuthidae)

- planilirata Gatliff & Gabriel, 1911 = Neolepton planilirata (family Neoleptonidae)

- plankta Iredale, 1936 = Nassarius mobilis (family Nassariidae – Nassariinae)

- planulata Lamarck, 1827 = Stomatella impertusa (family Trochidae – Stomatellinae)

- planus Quoy & Gaimard, 1834 = Bembicium nanum (family Littorinidae – Lacuninae)

- platyctenea Willan, 1988 = Marioniopsis platyctenea (family Tritoniidae)

- plebejus Philippi, 1851 = Clanculus plebejus (family Trochidae – Trochinae)

- plexa Hedley, 1902 = Retizafra plexa (family Columbellidae – Atiliinae)

- plumbea Lamarck, 1822 = Polinices sordida (family Naticidae – Naticinae)

- pluriannulata Reeve, 1846 = Cominella lineolata (family Buccinidae – Buccininae)

- plurisulcatus Reeve, 1859 = Aesopus plurisulcatus (family Columbellidae – Atiliinae)

- pluteum Colman, 1958 = Laevidentalium erectum (family Laevidentaliidae)

- pluto Berry, 1918 = Opisthoteuthis pluto (family Opisthoteuthidae)

- pocilliformis Roch, 1931 = Teredo navalis (family Teredinidae – Teredininae)

- pocula Laseron, 1954 = Tetraphora granifera (family Triphoridae – Triphorinae)

- poculifera Marshall, 1918 = Anomia trigonopsis (family Anomiidae – Anomiinae)

- poenicia Burn, 1957 = Flabellina poenicia (family Flabellinidae)

- polita Chemnitz in Reeve, 1854 = Mactra australis (family Mactridae – Mactrinae)

- polita May, 1924 = Myllita polita (family Galeommatidae)

- polyactina Verco, 1912 = Eoacmaea calamus (family Lottiidae – Patelloidinae)

- polyodontus Quoy & Gaimard, 1834 = Brachidontes erosus (family Mytilidae)

- polyphyllius Tenison Woods, 1879 = Gemixystus polyphyllius (family Muricidae – Trophoninae)

- ponderi Garrard, 1977 = Heliacus ponderi (family Architectonicidae – Heliacinae)

- porcata A. Adams, 1853 = Austrocochlea porcata (family Trochidae – Trochinae)

- porcellana A. Adams, 1853 = Notogibbula preissiana (family Trochidae – Trochinae)

- porcellana Jackson, 1954 = Ericusa sowerbyi (family Volutidae – Cymbiinae)

- porcellana Tate & May, 1900 = Putilla porcellana (family Seguenziidae – Davisianinae)

- porphyria Verco, 1896 = Peculator porphyria (family Volutomitridae)

- porrecta Hedley, 1906 = Cunanax subradiata (family Condylocardiidae – Condylocardiinae)

- portseaensis Gatliff & Gabriel, 1911 = Turbonilla portseaensis (family Pyramidellidae – Turbonillinae)

- powelli Cotton, 1957 = Charonia lampas rubicunda (family Ranellidae – Cymatiinae)

- praecisa Reeve, 1854 = Paphies cuneata (family Mesodesmatidae – Mesodesmatinae)

- praetermissa May, 1909 = Afrolittorina praetermissa (family Littorinidae – Littorininae)

- praetermissa May, 1916 = Austroginella praetermissa (family Marginellidae – Marginellinae)

- praetornatilis Hedley, 1912= Attenuata praetornatilis (family Rissoidae – Rissoinae)

- preissiana Iredale, 1949 = Pecten fumatus (family Pectinidae – Pectininae)

- preissiana Philippi, 1849 = Notogibbula preissiana (family Trochidae – Trochinae)

- pretzgeri Collins, 2005 = Bostrycapulus pretzgeri (family Calyptraeidae)

- princeps Laseron, 1954 = Liotella johnstoni (family Turbinidae – Skeneinae)

- pritchardi Hedley, 1895 = Amblychilepas nigrita (family Fissurellidae – Fissurellinae)

- probabilis Iredale, 1924 = Ethminolia probabilis (family Trochidae – Umboniinae)

- problematica Gatliff & Gabriel, 1916 = Cystiscus halli (family Cystiscidae – Cystiscinae)

- problematica Iredale, 1924 = Leiopyrga octona (family Trochidae – Umboniinae)

- procella May, 1916 = Mesoginella olivella (family Marginellidae – Marginellinae)

- procella May, 1916 = Mesoginella olivella (family Marginellidae – Marginellinae)

- procerum Iredale, 1929 = Cabestana spengleri (family Ranellidae – Cymatiinae)

- procincta Hedley, 1908 = Ascorhis victoriae (family Hydrobiidae – Hydrobiinae)

- producta A. Adams, 1850 = Macroschisma producta (family Fissurellidae – Fissurellinae)

- producta Angas, 1867 = Spisula trigonella (family Mactridae – Mactrinae)

- profundior Cotton & Godfrey, 1932 = Fusinus undulatus (family Fasciolariidae – Fusininae)

- profundior Dell, 1956 = Loricella profundior (family Schizochitonidae)

- profundior Iredale, 1936 = Plastiscala morchi (family Epitoniidae)

- profundior May, 1915 = Vaceuchelus profundior (family Trochidae – Eucyclinae)

- profundus May, 1923 = Leptochiton liratus (family Lepidopleuridae)

- projecta Hedley, 1902 = Condylocuna projecta (family Condylocardiidae – Condylocardiinae)

- prolongata Reeve, 1863 = Laternula attenuata (family Laternulidae)

- propelevis Ponder, 1968 = Terebra tristis (family Terebridae – Terebrinae)

- propinqua Tenison Woods, 1877 = Haustrum vinosum (family Muricidae – Haustrinae)

- protolineata Laseron, 1951 = Metaxia protolineata (family Triphoridae – Metaxiinae)

- protumida Hedley, 1903 = Retusa protumida (family Retusidae)

- puer May, 1921 = Onoba puer (family Rissoidae – Rissoinae)

- pulchella Kiener, 1834 = Persicula pulchella (family Cystiscidae – Persiculinae)

- pulchella Petterd, 1884 = Badepigrus pupoides (family Anabathridae)

- pulchella Reeve, 1857 = Electroma georgiana (family Pteriidae)

- pulchellus Reeve, 1853 = Pecten fumatus (family Pectinidae – Pectininae)

- pulcher Petterd, 1884 = Sinezona pulchra (family Scissurellidae – Scissurellinae)

- pulcherrimus Miller & Willan, 1986 = Dermatobranchus pulcherrimus (family Arminidae)

- pulchra A. Adams, 1862 = Alaba pulchra (family Litiopidae)

- pulchra Tenison Woods, 1877 = Etrema denseplicata (family Conidae – Clathurellinae)

- pulex Lamarck, 1819 = Limnoperna pulex (family Mytilidae)

- pulla Gaskoin, 1852 = Mitrella tenuis (family Columbellidae – Atiliinae)

- pulleineana Tate, 1887 = Talochlamys pulleineana (family Pectinidae – Chlamydinae)

- pulvillus Hedley, 1906 = Onoba rubicunda (family Rissoidae – Rissoinae)

- pumilio Tate, 1893 = Herpetopoma pumilio (family Trochidae – Eucyclinae)

- pumilio May, 1916 = Austromitra analogica (family Costellariidae)

- pumilio Tate & May, 1901 = Cystiscus minutissimus (family Cystiscidae – Cystiscinae)

- punctata Quoy & Gaimard, 1834 = Naccula punctata (family Nacellidae)

- punctata Tenison Woods, 1876 = Diala suturalis (family Dialidae)

- punctato-striata Tenison Woods, 1879 = Leucotina casta (family Amathinidae)

- punctospira Tate & May, 1900 = Odostomia micra (family Pyramidellidae – Odostomiinae)

- punctulata Reeve, 1857 = Electroma scalpta (family Pteriidae)

- punicea Laseron, 1948 = Gibberula agapeta (family Cystiscidae – Persiculinae)

- puniceolinea Ponder & Yoo, 1978 = Eatoniella puniceolinea (family Eatoniellidae)

- pupoides H. Adams, 1865 = Badepigrus pupoides (family Anabathridae)

- pupoides May, 1915 = Onoba puer (family Rissoidae – Rissoinae)

- pura Reeve, 1854 = Mactra pura (family Mactridae – Mactrinae)

- purpuratus Pilsbry, 1889 = Clanculus philippi (family Trochidae – Trochinae)

- purpurea Angas, 1877 = Seila albosutura (family Cerithiopsidae – Seilinae)

- purpureocincta Verco, 1910 = Mitrella menkeana (family Columbellidae – Atiliinae)

- purpureostoma Hedley & May, 1908 = Microvoluta australis (family Volutomitridae)

- purpureostoma May, 1919 = Eatoniella atropurpurea (family Eatoniellidae)

- purpuriformis Kiener, 1841 = Cancellaria purpuriformis (family Cancellariidae – Cancellariinae)

- pusilla A. Adams, 1855 = Mactra pusilla (family Mactridae – Mactrinae)

- pusilla Angas, 1877 = Pronucula pusilla (family Nuculidae)

- pusilla Laseron, 1948 = Mesoginella turbinata (family Marginellidae – Marginellinae)

- pustulata Abraham, 1877 = Hoplodoris nodulosa (family Discodorididae)

- pustulosum Lightfoot, 1786 = Argobuccinum pustulosum (family Ranellidae – Ranellinae)

- pygmaea A. Adams, 1850 = Retusa pygmaea (family Retusidae)

- pygmaea Suter, 1913 = Mesoginella turbinata (family Marginellidae – Marginellinae)

- pygmaeoides Singleton, 1937 = Mesoginella pygmaeoides (family Marginellidae – Marginellinae)

- pyramidata Linnaeus, 1767 = Clio pyramidata (family Cavoliniidae – Clioinae)

- pyramis Reeve, 1855 = Polinices conica (family Naticidae – Naticinae)

- pyrrhus Menke, 1843 = Nassarius pyrrhus (family Nassariidae – Nassariinae)

- pyrulatus Reeve, 1847 = Fusinus undulatus (family Fasciolariidae – Fusininae)

- pyrum Lamarck, 1822 = Semicassis pyrum (family Tonnidae – Phaliinae)