Lucidestea paludinoides (M. Yokoyama, 1927)
Rissoa panhormensis A. Verduin, 1985
Rissoa paradoxa (T.A. de M. Monterosato,1884)
Rissoa paradoxa paradoxissima F. Nordsieck, 1972
Alvania parazosta (FOSSIL) P. Lozouet, 1998 †
Alvania pariana (FOSSIL) (Guppy in Guppy & Dall,1896) †
Powellisetia paroeca (FOSSIL) (Finlay, 1924 †)
Cingula parryensis (FOSSIL) H.S. Ladd, 1966 †
Alvania partimcancellata (FOSSIL) Harmer, 1920 †
Rissoa parva (E.M. Da Costa, 1778)
Rissoa parva interrupta (J. Adams, 1800)
Alvania parvula (J.G. Jeffreys, 1884)
Onoba parvula (A.W.B. Powell, 1931)
Onoba paucicarinata W.F. Ponder, 1983
Onoba paucicostata (A.W.B. Powell, 1931)
Onoba paucilirata (J.C. Melvill & R. Standen,1912)
Plagyostila pauperata F. Nordsieck, 1980
Merelina paupereques A.W.B. Powell, 1937
Onoba paupereques (H.J. Finlay, 1926)
Frigidoalvania pelagica (W. Stimpson, 1851)
Alvania peli R.G. Moolenbeek & E. Rolán,1988
Haurakia pellucida (A.W.B. Powell, 1937)
Manzonia pelorum R.G. Moolenbeek& M.J. Faber, 1987
Powellisetia pelseneeri (K.H.J. Thiele, 1912)
Alvania peracuta (FOSSIL) E.A.L. Kittl, 1899 †
Cingula perfecta (E.A. Smith, 1890)
Mohrensternia perinflata (FOSSIL) Friedberg, 1923 †
Crisilla perminima (A. Manzoni, 1868)
Rissoa pernambucensis R.B. Watson, 1885
Onoba perplexa (FOSSIL) (Finlay, 1924 †)
Ovirissoa perpolita (W.L. May, 1919)
Rissoa perpusilla (FOSSIL) J.P.S. Grateloup, 1847 †
Alvania perregularis (FOSSIL) F. Sacco, 1895 †
Ovirissoa pertumida (W.L. May, 1915)
Merelina petronella (J.C. Melvill & R. Standen,1901)