Sabinella paivensis (R.B. Watson, 1873)
Turveria pallida A. Warén, 1992
Apicalia palmipedis (F. Koehler & C. Vaney,1913)
Eulima panamensis (P. Bartsch, 1917)
Melanella pandata (A. Adams, 1861)
Melanella parallela W.H. Dall, 1927
Monogamus parasaleniae A. Warén, 1980
Enteroxenos parastichopoli (E.S. Tikasingh, 1961)
Vitreolina parfaiti (L. de Folin, 1887)
Eulima paria (P. Bartsch, 1926)
Eulima parva G.B. II Sowerby, 1866
Stilapex parva (M.M. Schepman, 1909)
Eulima patula W.H. Dall & C.T. Simpson,1901
Melanella patutahiensis (FOSSIL) J. Marwick, 1931 †
Chileutomia paulinensis (FOSSIL) P. Lozouet, 1999 †
Echineulima paulucciae (P. Fischer, 1864)
Melanella paxillus (C. Hedley, 1904)
Hemiliostraca peasei (G.W. Tryon, 1886)
Annulobalcis pellucida (W. Turton, 1832)
Semistylifer pellucidus (FOSSIL) (G.P. Deshayes, 1824 †)
Melanella peninsularis P. Bartsch, 1917
Melanella penna W.H. Dall, 1927
Eulima peracuta K.H.J. Thiele, 1925
Pelseneeria perdepressa (W.H. Dall, 1925)
Fusceulima perexigua (R. Tate & W.L. May,1900)
Asterophila perknasteri A. Warén in A. Warén& L.M. Lewis, 1994
Vitreolina perminima (J.G. Jeffreys, 1883)
Hypermastus peronellicola (J.T. Kuroda & T. Habe,1950)
Melanella perplexa W.R.B. Oliver, 1915
Scalenostoma perrierae J.C.N. Barros, I.P. Padovan& F.N. Santos, 2001
Melanella persimilis (J.T. Kuroda & T. Habe,1971)
Eulima persimplica (FOSSIL) B. Wade, 1926 †
Eulima perspicua (W.R.B. Oliver, 1915)
Melanella perversa (K.J. Bush, 1909)
Melanella petitiana Š. Brusina, 1869