Schasicheila pilsbryi A.J. Wagner, 1911
Poenia pilsbryi W.F. Clapp, 1914
Helicina pisum R.A. Philippi, 1847
Tristramia pitalensis (A.J. Wagner, 1910)
Helicina platychila (J.K. Megerle Von Mühlfeld,1824)
Sturanya plicatilis (A. Mousson, 1865)
Poeniella plicatula (L. Pfeiffer, 1849)
Fadyenia poeyana E. Chitty, 1857
Helicina poeyi L. Pfeiffer, 1859
Fadyenia polyblankiana E. Chitty, 1857
Helicina pompholyx H.A. Pilsbry, 1933
Aphanoconia ponsonbyi (E.A. Smith, 1884)
Ceratodiscus portoricanus H.A. Pilsbry & E.G. Vanatta,1927
Helicina prasinata E.R. Jacobson & W.J. Clench,1971
Palaeohelicina primeana (J. Gassies, 1863)
Geophorus pseudomphalus (O.F. von Möllendorff,1894)
Helicina psorica P.M.A. Morelet, 1863
Oxyrhombus ptychophora E.R. Sykes, 1902
Helicina pucayaensis H.B. Preston, 1914
Eutrochatella puchella (J.E. Gray, 1824)
Stoastomops puertoricana H.B. Baker, 1941
Eutrochatella pulchella (J.E. Gray, 1824)
Eutrochatella pulchella cavearum (F.C. Baker, 1914)
Eutrochatella pulchella scitula (S.V. Wood, 1854)
Emoda pulcherrima (H.C. Lea, 1834)
Emoda pulcherrima crassa (A.V.M.D. D'Orbigny,1841)
Priotrochatella pulchra (C.B. Adams, 1851)
Tristramia punctisulcata E.C. Von Martens, 1890
Tristramia punctisulcata cuericensis I. Richling, 2004
Alcadia pusilla (C.B. Adams, 1850)
Troschelviana pyramidalis (G.B. Sowerby, 1842)
Ceratopoma quadrasi (O.F. von Möllendorff,1896)
Pleuropoma queenslandica J. Stanisic, 2010
Palaeohelicina rabei (H.A. Pilsbry, 1897)
Ceratodiscus ramsdeni H.A. Pilsbry, 1914