Lithoglyphus naticoides berolinensis C.A. Westerlund, 1886
Fluminicola neritoides R. Hershler & al., 2007
Lithoglyphus neumayri (FOSSIL) Sinzov, 1876 †
Fluminicola nevadensis B. Walker, 1916
Lithoglyphus novaki (FOSSIL) Š. Brusina, 1897 †
Fluminicola nuttalliana (I. Lea, 1838)
Lithoglyphus obliquus (FOSSIL) Cobalcescu, 1883 †
Somatogyrus obtusus B. Walker, 1904
Kobeltocochlea olchonensis W.A. Lindholm, 1909
Potamolithus orbignyi H.A. Pilsbry, 1896
Lithoglyphus ornatus (FOSSIL) Papaianopol, 2006 †
Lithoglyphopsis ovata (R. Hershler, H.P. Liu& J.J. Landye, 2011)
Potamolithus paranaensis H.A. Pilsbry, 1911
Somatogyrus parvulus G.W. Tryon, 1865
Potamolithus paysanduanus H.F.A. von Ihering, 1910
Somatogyrus pennsylvanicus B. Walker, 1904
Potamolithus peristomatus (A.V.M.D. D'Orbigny,1835)
Potamolithus petitianus (A.V.M.D. D'Orbigny,1840)
Potamolithus philippianus H.A. Pilsbry, 1911
Lithoglyphus phrygicus (FOSSIL) P. Oppenheim, 1919 †
Somatogyrus pilsbryanus B. Walker, 1904
Saduniella planispira R.A.M. Brandt, 1970
Manningiella polita (R.A.M. Brandt, 1970)
Fluminicola potemicus R. Hershler, H.P. Liu, T.J. Frest& E.J. Johannes, 2007
Lithoglyphus prasinus (H.C. Küster, 1852)
Pterides pterostoma H.A. Pilsbry, 1909
Benedictia pulchella T.Y. Sitnikova, 1987
Somatogyrus pumilus (T.A. Conrad, 1834)
Benedictia pumyla (W.A. Lindholm, 1924)
Lithoglyphus pygmaeus G.R. von Frauenfeld, 1863
Somatogyrus pygmaeus B. Walker, 1909
Lithoglyphus pyramidatus (FOSSIL) Möllendorf, 1873 †
Somatogyrus quadratus B. Walker, 1906
Potamolithus quadratus H.A. Pilsbry& H.F.A. von Ihering, 1911
Lithoglyphus rarus (FOSSIL) Papaianopol, 2006 †