Brotia pageli (K.H.J. Thiele, 1908)
Brotia pagodula (A.A. Gould, 1847)
Bellatara palaeochroma (FOSSIL) (J.F. Bayan, 1870 †)
Tylomelania palicolarum (P.B. Sarasin& K.F. Sarasin, 1897)
Brotia paludiformis (G.A. Solem, 1966)
Paracrostoma paludiformis (T.C. Yen, 1939)
Potamanax pasionensis H.A. Pilsbry, 1956
Tylomelania patriachalis (P.B. Sarasin& K.F. Sarasin, 1898)
Tylomelania patriarchalis (P.B. Sarasin& K.F. Sarasin, 1897)
Faunus paytensis (FOSSIL) Woods in Bosworth, 1922 †
Brotia peninsularis (R.A.M. Brandt, 1974)
Brotia perfecta (A. Mousson,1849 or, 1899)
Pachychilus pernambucensis L.A. Reeve, 1861
Amnipila pila (H.A. Pilsbry& A. Hinkley, 1910.)
Tinnyea pilari (FOSSIL) (M. von Neumayr, 1880 †)
Potamanax pilsbryi (E.C. Von Martens, 1899)
Sulcospira pisum (A. Brot, 1868)
Oxymelania pleurostriatus (T. Say, 1831)
Oxymelania pleurotoma H.A. Pilsbry & A. Hinkley,1910
Potadoma pokoensis H.A. Pilsbry& J.C. Bequaert, 1927
Potadoma ponthiervillensis C. Dupuis & S. Putzeys,1900
Tylomelania porcellanica (P.B. Sarasin& K.F. Sarasin, 1897)
Glyptomelania potomarchus H.A. Pilsbry, 1892
Pachychilus pottsianus A. Hinkley, 1920
Brotia praecessa (FOSSIL) (G.P. Deshayes, 1861 †)
Brotia praetermissa F. Köhler & M. Glaubrecht,2002
Brotia pseudoasperata R.A.M. Brandt, 1968
Paracrostoma pseudosulcospira (R.A.M. Brandt, 1968)
Moniquia pyreniformis (FOSSIL) (G.P. Deshayes, 1833 †)
Sulcospira quangtriensis F. Köhler, M. Holford, V.T. Do& T.H. Ho, 2009
Tinnyea recticostata (FOSSIL) (B.W. Jenkins, 1864 †)
Brotia reevei (A. Brot)
Potadoma riperti A. Samé-Ekobo& T.K. Kristensen, 1985
Tylomelania sarasinorum (J.H. Kruimel, 1913)
Potamanax sargi (J.C.H. Crosse& P.H. Fischer, 1875)