Giffordius pinchoti H.A. Pilsbry, 1930
Vespericola pinicola (S.S. Berry, 1916)
Polygyra plagioglossa (L. Pfeiffer, 1859)
Polygyra plana R.W. Dunker, 1843
Polygyra plana bahamensis E.G. Vanatta, 1919
Triodopsis platysayoides J. Brookes, 1933
Millerelix plicata (T. Say, 1821)
Daedalochila poeyi C.G. Aguayo & M.L. Jaume,1947
Linisia polita (H.A. Pilsbry & A. Hinkley,1907)
Linisia ponsonbyi (H.A. Pilsbry, 1896)
Daedalochila postelliana T.B. Bland, 1859
Vespericola pressleyi B. Roth, 1985
Praticolella prisca (FOSSIL) K. Auffenberg& R. Portell, 1990 †
Allogona profunda (T. Say, 1821)
Ashmunella proxima H.A. Pilsbry, 1905
Ashmunella pseudodonta (W.H. Dall, 1897)
Allogona ptychophora (A.D. Brown, 1870)
Allogona ptychopora (A.D. Brown, 1870)
Lobosculum pustula (A.E.J. Férussac, 1832)
Lobosculum pustuloides (T.B. Bland, 1858)
Linisia rhoadsi (H.A. Pilsbry, 1899)
Ashmunella rhyssa (W.H. Dall, 1897)
Linisia richardsoni (E.C. Von Martens, 1892)
Ashmunella rileyensis A. Metcalf & D.E. Hurley,1971
Patera roemeri (L. Pfeiffer, 1848)
Trilobopsis roperi (H.A. Pilsbry, 1889)
Vespericola rothi P.A. Cordero & W.B. Miller,1995
Inflectarius rugeli (R.J. Shuttleworth, 1852)
Triodopsis rugosa S.T. Brooks& G.M. MacMillan, 1940
Praticolella salina Perez & Ruiz, 2017
Ashmunella salinasensis J. Vagvolgyi, 1974
Cryptomastix sanburni (W.G. Binney, 1886)
Mesodon sanus W.J. Clench & S. Archer,1933
Patera sargentiana C.W. Johnson & H.A. Pilsbry,1892
Appalachina sayana (H.A. Pilsbry, 1906)