Physa occidentalis G.W. Tryon, 1865
Aplexa orientalis Y.I. Starobogatov, 1992
Costatella osculans (S.S. Haldeman, 1841)
Chiapaphysa pacifica D.W. Taylor, 2003
Physa papaveroi J.L.M. Leme, 1966
Physa parkeri A. Currier, 1881
Haitia patzcuarensis (H.A. Pilsbry, 1891)
Mexinauta peruvianus (J.E. Gray, 1828)
Mayabina petenensis D.W. Taylor, 2003
Sibirenauta pictus (A. Krause, 1883)
Physella platensis Unknown
Mayabina pliculosa (E.C. Von Martens, 1898)
Mayabina polita D.W. Taylor, 2003
Haitia pomilia (T.A. Conrad, 1834)
Haitia porteri (J. Germain, 1913)
Aplexa primigenia (FOSSIL) G.P. Deshayes, 1863 †
Mexinauta princeps (B. Phillips, 1846)
Physa prinsepii (FOSSIL) Sowerby, 1840 †
Physella propinqua G.W. Tryon, 1865
Physella propinqua venusta I. Lea, 1864
Physa pumilia T.A. Conrad, 1834
Physa randabeli J.R. Bourguignat, 1888
Mayabina sanctijohannis D.W. Taylor, 2003
Physella sayi C.M. Tapparone-Canefri,1876
Physella sayi warreniana (I. Lea, 1864)
Sibirenauta sibericus (C.A. Westerlund, 1876)
Sibirenauta sibirica (C.A. Westerlund, 1876)
Ultraphysella sinaloae D.W. Taylor, 2003
Tropinauta sinusdulcensis D.W. Taylor, 2003
Physa skinneri D.W. Taylor, 1954
Haitia solidissima (H.A. Pilsbry, 1920)
Archiphysa sonomae (A.G. Smith, 1967)
Stenophysa spathidophallus D.W. Taylor, 2003
Physella spelunca (H. Turner & W.J. Clench,1974)
Mayabina spiculata (P.M.A. Morelet, 1849)