Stenotrema monodon aliciae (H.A. Pilsbry, 1893) Missouri10,2 mm
Ashmunella montivaga H.A. Pilsbry, 1948 Mexico, Chihuahua
Millerelix mooreana (W.G. Binney, 1858) Texas8,7 mm
Ashmunella mudgei E.P. Cheatum, 1971 USA, Texas
Cryptomastix mullani (T.B. Bland& J.G. Cooper, 1861) USA, Montana
Webbhelix multilineata (T. Say, 1821) Minnesota
Upsilodon multiplicata A. Metcalf& D.H. Riskind, 1978 Mexico, Saltillo
Triodopsis neglecta H.A. Pilsbry, 1899 Missouri12 mm
Linisia nelsoni (W.H. Dall, 1897) Mexico, Jalisco
Akromesodon normalis (H.A. Pilsbry, 1900) USA, Georgia34,6 mm
Triodopsis obsoleta H.A. Pilsbry, 1894 USA. Virginia
Xolotrema obstrictum T. Say, 1821 Tennessee20 mm
Xolotrema occidentale H.A. Pilsbry& J.H. Ferriss, 1907 Arkansas
Linisia oppilata (P.M.A. Morelet, 1849) Mexico, San Luis Potosì
Fumonelix orestes (L.R. Hubricht, 1975)
Ashmunella organensis H.A. Pilsbry, 1936
Vespericola orius (S.S. Berry, 1933)
Praticolella pachyloma (K.T. Menke, 1847) Bahamas
Triodopsis palliata T. Say Pennsylvania
Polygyra paludosa (L. Pfeiffer, 1839)
Triodopsis palustris L.R. Hubricht, 1958 South Carolina
Patera panselenus L.R. Hubricht, 1976
Ashmunella pasonis M. Drake, 1951 USA, Texas
Triodopsis pendula L.R. Hubricht, 1952 Pennsylvania
Daedalochila peninsulae H.A. Pilsbry, 1940
Trilobopsis penitens (G.D. Hanna& E. Rixford, 1923)
Patera pennsylvanica (J. Green, 1827) Canada, Ontario
Millerelix peregrina (H.A. Rehder, 1932) Arkansas6,9 mm
Linisia pergrandis G.A. Solem, 1959 Mexico, Michoacan
Patera perigrapta H.A. Pilsbry, 1894 Tennessee18 mm
Triodopsis picea L.R. Hubricht, 1958 West Virginia
Vespericola pilosa (J. Henderson, 1928)
Ashmunella pilsbryana J.H. Ferriss, 1914 Alabama
Stenotrema pilsbryi J.H. Ferriss, 1900 Arkansas
Stenotrema pilula H.A. Pilsbry, 1900 Tennessee