Epitonium pallidizonatum (H. Masahito, J.T. Kuroda& T. Habe, 1971)
Periapta pandion (W.J. Clench & H. Turner,1952)
Cylindriscala paradoxa E.F. Garcia, 2003
Gyroscala paraguanensis (FOSSIL) B.M. Landau, F. Da Silva& S.M. Heitz, 2016 †
Epitonium parspeciosum (T. Iredale, 1929)
Cycloscala parvilobata M.E.A. de Boury, MS
Epidendrium parvitrochoides T. Nakayama, 2016
Epitonium parvonatrix R.N. Kilburn, 1985
Cirsotrema parvulum (FOSSIL) J. Marwick, 1928 †
Epitonium pasiphaes (J.C. Melvill, 1912)
Surrepifungium patamakanthini E. Gittenberger& A. Gittenberger, 2005
Opalia paucisculpta L. Bozzetti, 2007
Opalia paulula H. DuShane, 1974
Epitonium paumotense (W.H. Pease, 1867)
Epitonium paytense (FOSSIL) A.A. Olsson, 1930 †
Narvaliscala pelisanserina E.F. Garcia, 2003
Claviscala pellisanserina E.F. Garcia, 2003
Rectacirsa peltei (J.M.R.M. Viader, 1938)
Acirsa penepolaris (FOSSIL) Wood, 1872 †
Epitonium perangustum (M.E.A. de Boury, 1913)
Narvaliscala percancellata (T. Nakayama, 2000)
Epitonium perelegans (FOSSIL) (M.E.A. de Bouryin A.E.M. Cossmann, 1902 †)
Epitonium perfoliatum (K.H.J. Thiele, 1925)
Epitonium perimense (F.P. Jousseaume, 1912)
Epitonium perlucidum (F.P. Jousseaume, 1912)
Sthenorytis pernobilis (P. Fischer& A.C. Bernardi, 1857)
Sthenorytis pernobilis belaurita (W.H. Dall, 1889)
Opalia pertusa (FOSSIL) P. Nyst, 1868 †
Epitonium peruvianum (FOSSIL) A.A. Olsson, 1928 †
Acirsella pervaricosa (FOSSIL) A. von Koenen, 1891 †
Epitonium peyroti (FOSSIL) (M.E.A. de Boury †)
Epitonium philippinarum Sowerby, 1844
Epitonium philtatum (R.B. Watson, 1886)
Epitonium phymanthi R. Robertson, 1994
Epitonium pigrum E.F. Garcia, 2011