Pyrgulopsis palomasensis (H.A. Pilsbry, 1895)
Hydrobia paludinaria (FOSSIL) (Schlotheim, 1820 †)
Petterdiana paludinella (L.A. Reeve, 1857)
Littoridinops palustris F.G. Thompson, 1968
Pyrgula pambotis A. Reischütz& P.L. Reischütz, 2002
Graecoanatolica pamphylica (H. Schütt, 1964)
Belgrandiella pandurskii D.G. Georgiev, 2011
Bythiospeum pandurskii D.G. Georgiev, 2012
Devetakia pandurskii D.G. Georgiev & P. Glöer,2011
Kadolskya panicum (FOSSIL) (M. von Neumayr, 1869 †)
Sadleriana pannonica G.R. von Frauenfeld
Micromelania pantanellii (FOSSIL) W.A. Wenz, 1925 †
Prososthenia pantanellii (FOSSIL) Š. Brusina, 1884 †
Pontohydrobia panticapaea (FOSSIL) (N.I. Andrusov, 1890 †)
Pyrgulopsis papillata R. Hershler, 1998
Nematurella pappi (FOSSIL) W.R. Schlickum, 1960 †
Belgrandiella papukensis P. Radoman, 1975
Graecoarganiella parnassiana A. Falniowski& M. Szarowska, 2011
Pseudamnicola partschi (FOSSIL) (G.R. von Frauenfeldin M. Hörnes, 1856 †)
Cincinnatia parva F.G. Thompson, 1968
Caspia parva (FOSSIL) Roshka, 1973 †
Caspiohydrobia parva (B.M. Logvinenko& Y.I. Starobogatov, 1968)
Nanocochlea parva W.F. Ponder & K.B. Clark,1993
Pyrgulella parva (FOSSIL) M. Harzhauser, D. Kadolsky& T.A. Neubauer, 2015 †
Turricaspia parvinucleata (FOSSIL) Roshka, 1973 †
Horatia parvula G. Nägele, 1894
Avenionia parvula F.L. Giusti & M. Bodon,1981
Austropyrgus parvus A. Clark, W.B. Miller& W.F. Ponder, 2003
Pseudotryonia pasajae R. Hershler, H.P. Liu& J.J. Landye, 2011
Fluviopupa pascali M. Haase, Fontaine& O. Gargominy, 2010
Pseudamnicola pasiphae (FOSSIL) Willmann, 1980 †
Pyrgulopsis patzcuarensis (H.A. Pilsbry, 1891)
Prososthenia paulae (FOSSIL) Esu & Girotti, 2001 †
Schuettemmericia paulensis (FOSSIL) (Degrange-Touzin, 1892 †)
Goniochilus pauli (FOSSIL) (A. Fuchs, 1877 †)