Unitas planistria (FOSSIL) (A. von Koenen, 1885 †)
Cancellaria plebeja K.H.J. Thiele, 1925
Bivetopsia plectilis (FOSSIL) P.O. Jung & R.E. Petit,1990 †
Zeadmete pliocenica (FOSSIL) C.C. Finlay, 1930 †
Ventrilia plummeri (FOSSIL) A.A. Olsson, 1922 †
Trigonostoma pluricostata F. Kautsky, 1925
Tritonoharpa ponderi A.G. Beu & P.A. Maxwell,1987
Turehua ponscuspidis (FOSSIL) A.G. Beu & P.A. Maxwell,1987 †
Unitas ponsi (FOSSIL) P. Lozouet, 2015 †
Bivetopsia porvenirensis (FOSSIL) B.M. Landau & al., 2012 †
Trigonostoma pouwi (FOSSIL) A.W. Janssen, 1984 †
Perplicaria prior (FOSSIL) C.J. Maury, 1910 †
Scalptia problematica (FOSSIL) B.M. Landau & al., 2013 †
Microsveltia procerula A. Verhecken, 1997
Neadmete profundicola T.A. Okutani, 1964
Merica promensis (FOSSIL) E.W. Vredenburg, 1921 †
Massyla propevenusta (FOSSIL) W.C. Mansfield, 1930 †
Trigonostoma protrigonostoma F. Sacco, 1894
Marianarona prunicola (FOSSIL) (Martin, 1904 †)
Tritonoharpa pseudangasi A.G. Beu & P.A. Maxwell,1987
Merica pseudocancellata (FOSSIL) Noetling, 1901 †
Trigonostoma pseudumbilicare (FOSSIL) M.A. Peyrot, 1925 †
Inglisella pukeuriensis (FOSSIL) (H.H. Suter, 1917 †)
Scalptia pukeuriensis (FOSSIL) (Finlay, 1930 †)
Bivetiella pulchra (G.B. I Sowerby, 1832)
Ventrilia puntagavilanensis (FOSSIL) B.M. Landau & al., 2012 †
Coptostomella pupa (FOSSIL) Finlay & J. Marwick,1937 †
Merica purpuriformis (L.C. Kiener, 1841)
Trigonostoma puschi (FOSSIL) (R. Hoernes & M. Auinger,1891 †)
Babylonella pusilla (FOSSIL) (R.A. Philippi, 1843 †)
Brocchinia pustulosa A. Verhecken, 1991
Pyruclia pycta (FOSSIL) A.A. Olsson, 1964 †
Trigonostoma pygmaeum (C.B. Adams, 1852)
Pyruclia pyrum (A. Adams & L.A. Reeve,1850)
Coptostoma quadratum (FOSSIL) (J. de C. Sowerby,1822 †)