Acrochasma tricarinatum Reuss, 1861 (unaccepted )
Anancylus rosanae Gutiérrez Gregoric, 2012 accepted as Sineancylus rosanae (Gutiérrez Gregoric, 2012)
Ancilus sinuosus Brard, 1815 accepted as Ancylus fluviatilis O. F. Müller, 1774
Ancylina cretacea (Tausch, 1886) †
Ancylus (Acroloxus) deperditolacustris Gottschick, 1911 † accepted as Acroloxus deperditolacustris (Gottschick, 1911) †
Ancylus (Ancylastrum) capuloides Jan, 1838 accepted as Ancylus capuloides Jan, 1838
Ancylus (Ancylastrum) cestasensis Peyrot, 1933 † represented as Ancylus cestasensis Peyrot, 1933 †
Ancylus (Ancylastrum) costulatus Bourguignat, 1853 accepted as Ancylus costulatus Bourguignat, 1853
Ancylus (Ancylastrum) costulatus var. compressiusculus Moquin-Tandon, 1856 (uncertain > taxon inquirendum )
Ancylus (Ancylastrum) cumingianus Bourguignat, 1853 accepted as Ancylastrum cumingianum (Bourguignat, 1853)
Ancylus (Ancylastrum) expansilabre Clessin, 1880 accepted as Ancylus expansilabris Clessin, 1880
Ancylus (Ancylastrum) fluviatile O.F. Müller, 1774 accepted as Ancylus fluviatilis O. F. Müller, 1774
Ancylus (Ancylastrum) fluviatile var. subcirculare Clessin, 1880 accepted as Ancylus subcircularis Clessin, 1880
Ancylus (Ancylastrum) fluviatilis O.F. Müller, 1774 accepted as Ancylus fluviatilis O. F. Müller, 1774
Ancylus (Ancylastrum) fluviatilis var. gibbosus Bourguignat, 1853 accepted as Ancylus gibbosus Bourguignat, 1853
Ancylus (Ancylastrum) libanicus Nägele, 1897 (uncertain > taxon inquirendum )
Ancylus (Ancylastrum) moravicus Rzehak, 1893 † represented as Ancylus moravicus Rzehak, 1893 †
Ancylus (Ancylastrum) obtusus Rzehak, 1893 † accepted as Ancylus moravicus Rzehak, 1893 †
Ancylus (Ancylastrum) praestans Westerlund, 1898 (uncertain > unassessed )
Ancylus (Ancylastrum) simplex (Buc'hoz, 1771) accepted as Ancylus fluviatilis O. F. Müller, 1774
Ancylus (Ancylastrum) simplex var. parvula Sacco, 1889 † accepted as Ancylus fluviatilis O. F. Müller, 1774
Ancylus (Ancylastrum) subtilis Penecke, 1891 † accepted as Ferrissia deperdita (Desmarest, 1814) †
Ancylus (Burnupia) caffer Krauss, 1848 accepted as Burnupia caffra (Krauss, 1848)
Ancylus (Burnupia) caffer capensis B. Walker, 1912 accepted as Burnupia capensis (B. Walker, 1912)
Ancylus (Burnupia) caffer var. capensis B. Walker, 1912 accepted as Burnupia capensis (B. Walker, 1912)
Ancylus (Burnupia) caffer var. farquhari B. Walker, 1912 accepted as Burnupia farquhari (B. Walker, 1912)
Ancylus (Burnupia) caffer var. nanus B. Walker, 1912 accepted as Burnupia nana (B. Walker, 1912)
Ancylus (Burnupia) mooiensis B. Walker, 1912 accepted as Burnupia mooiensis (B. Walker, 1912)
Ancylus (Burnupia) mooiensis dubiosa B. Walker, 1912 accepted as Burnupia mooiensis var. dubiosa (B. Walker, 1912)
Ancylus (Ferrissia) baconi Bourguignat, 1853 accepted as Pettancylus baconi (Bourguignat, 1854)
Ancylus (Ferrissia) bermudensis Vanatta, 1911 accepted as Ferrissia bermudensis (Vanatta, 1911)
Ancylus (Ferrissia) borealis E. S. Morse, 1864 accepted as Ferrissia rivularis (Say, 1817)
Ancylus (Ferrissia) burnupi B. Walker, 1912 accepted as Pettancylus burnupi (B. Walker, 1912)
Ancylus (Ferrissia) connollyi B. Walker, 1912 accepted as Pettancylus connollyi (B. Walker, 1912)
Ancylus (Ferrissia) elatior J. G. Anthony, 1855 accepted as Rhodacmea elatior (J. G. Anthony, 1855)
Ancylus (Ferrissia) equeefensis B. Walker, 1912 accepted as Pettancylus burnupi (B. Walker, 1912)
Ancylus (Ferrissia) filosus Conrad, 1834 accepted as Rhodacmea filosa (Conrad, 1834)
Ancylus (Ferrissia) fontinalis B. Walker, 1912 accepted as Ferrissia fontinalis (B. Walker, 1912) accepted as Pettancylus fontinalis (B. Walker, 1912)
Ancylus (Ferrissia) gordonensis Melvill & Ponsonby, 1903 accepted as Burnupia gordonensis (Melvill & Ponsonby, 1903)
Ancylus (Ferrissia) haldemani Bourguignat, 1853 accepted as Ferrissia rivularis (Say, 1817)
Ancylus (Ferrissia) hendersoni B. Walker, 1908 accepted as Ferrissia fragilis (Tryon, 1863) accepted as Ferrissia californica (Rowell, 1863)
Ancylus (Ferrissia) hinkleyi B. Walker, 1908 accepted as Rhodacmea hinkleyi (B. Walker, 1908)
Ancylus (Ferrissia) novangliae B. Walker, 1908 accepted as Ferrissia fragilis (Tryon, 1863) accepted as Ferrissia californica (Rowell, 1863)
Ancylus (Ferrissia) ovalis E. S. Morse, 1864 accepted as Ferrissia rivularis (Say, 1817)
Ancylus (Ferrissia) parallelus Haldeman, 1841 accepted as Ferrissia rivularis (Say, 1817)
Ancylus (Ferrissia) pumilus Sterki, 1900 accepted as Ferrissia fragilis (Tryon, 1863) accepted as Ferrissia californica (Rowell, 1863)
Ancylus (Ferrissia) rivularis Say, 1817 accepted as Ferrissia rivularis (Say, 1817)
Ancylus (Ferrissia) shimeki Pilsbry, 1890 accepted as Ferrissia fragilis (Tryon, 1863) accepted as Ferrissia californica (Rowell, 1863)
Ancylus (Ferrissia) stenochorias Melvill & Ponsonby, 1903 accepted as Burnupia stenochorias (Melvill & Ponsonby, 1903)
Ancylus (Ferrissia) verruca W. H. Benson, 1855 accepted as Pettancylus verruca (W. H. Benson, 1855)
Ancylus (Ferrissia) victoriensis B. Walker, 1912 accepted as Pettancylus victoriensis (B. Walker, 1912)
Ancylus (Ferrissia) viola Annandale & Prashad, 1921 accepted as Pettancylus viola (Annandale & Prashad, 1921)
Ancylus (Ferrissia) zambesiensis B. Walker, 1912 accepted as Pettancylus zambesiensis (B. Walker, 1912)
Ancylus (Laevapex) diaphanus Haldeman, 1841 accepted as Laevapex fuscus (C. B. Adams, 1840)
Ancylus (Laevapex) fuscus C. B. Adams, 1840 accepted as Laevapex fuscus (C. B. Adams, 1840)
Ancylus (Laevapex) fuscus var. eugraptus Pilsbry, 1896 accepted as Laevapex fuscus (C. B. Adams, 1840)
Ancylus (Laevapex) hemisphaericus B. Walker, 1908 accepted as Laevapex fuscus (C. B. Adams, 1840)
Ancylus (Pseudancylastrum) boettgerianus Lindholm, 1909 accepted as Baicalancylus boettgerianus (Lindholm, 1909)
Ancylus (Velletea) nuttallii Haldeman, 1841 accepted as Fisherola nuttallii (Haldeman, 1841)
Ancylus (Velletia) arenarius Cossmann, 1889 † accepted as Acroloxus arenarius (Cossmann, 1889) †
Ancylus (Velletia) boettgeri Zinndorf, 1901 † represented as Ancylus boettgeri Zinndorf, 1901 †
Ancylus abyssinicus Jickeli, 1874 accepted as Ancylus fluviatilis O. F. Müller, 1774
Ancylus actinophorus (C. A. White, 1886) † accepted as Acroloxus actinophorus C. A. White, 1886 †
Ancylus acutus Bronn, 1831 † (uncertain > unassessed )
Ancylus adelinus Bourguignat, 1862 accepted as Hebetancylus adelinus (Bourguignat, 1862)
Ancylus aduncus A. Gould, 1847
Ancylus albus Moquin-Tandon, 1856 (uncertain > taxon inquirendum )
Ancylus altus Tryon, 1865 accepted as Lanx alta (Tryon, 1865)
Ancylus alutae Jekelius, 1932 †
Ancylus amnicola De Stefani, 1883 (uncertain > taxon inquirendum )
Ancylus antediluvianus Bourguignat, 1869 † (uncertain > taxon inquirendum )
Ancylus aorus Bourguignat, 1862 accepted as Hebetancylus moricandi (A. d'Orbigny, 1837)
Ancylus aradasi Hubendick, 1970 (unaccepted > nomen nudum )
Ancylus argenteus Connolly, 1941 (uncertain > taxon inquirendum )
Ancylus armenia O. Boettger, 1881 (uncertain > taxon inquirendum )
Ancylus artificiosus Pallary, 1920 (uncertain > taxon inquirendum )
Ancylus ashangiensis D. S. Brown, 1965
Ancylus assimilis Petterd, 1884 accepted as Ancylus tasmanicus Tenison Woods, 1876 accepted as Pettancylus tasmanicus (Tenison Woods, 1876)
Ancylus australicus Tate, 1880 accepted as Pettancylus petterdi (R. M. Johnston, 1879)
Ancylus baconi Bourguignat, 1854 accepted as Ferrissia baconi (Bourguignat, 1854) accepted as Pettancylus baconi (Bourguignat, 1854)
Ancylus bahiensis S. Moricand, 1836 (unaccepted > nomen nudum )
Ancylus barilensis S. Moricand, 1846 accepted as Uncancylus concentricus (A. d'Orbigny, 1835)
Ancylus beaui Bourguignat, 1853 accepted as Ferrissia beaui (Bourguignat, 1853)
Ancylus benoitianus Bourguignat, 1862
Ancylus berellensis de Laubrière & Carez, 1881 † accepted as Acroloxus berellensis (de Laubrière & Carez, 1881) †
Ancylus bermudensis Vanatta, 1911 accepted as Ferrissia bermudensis (Vanatta, 1911)
Ancylus bireflexus Moquin-Tandon, 1856 (uncertain > taxon inquirendum )
Ancylus boettgeri Zinndorf, 1901 †
Ancylus boettgerianus Lindholm, 1909 accepted as Baicalancylus boettgerianus (Lindholm, 1909)
Ancylus borealis E. S. Morse, 1864 accepted as Ferrissia rivularis (Say, 1817)
Ancylus bourgeoisi Deshayes, 1863 †
Ancylus boyeri Noulet, 1868 †
Ancylus braunii Dunker, 1853 †
Ancylus brenieri Bavay & Dautzenberg, 1912 accepted as Ferrissia verruca (W. H. Benson, 1855) accepted as Pettancylus verruca (W. H. Benson, 1855)
Ancylus brondeli Bourguignat, 1862 (uncertain > taxon inquirendum )
Ancylus burnupi B. Walker, 1912 accepted as Pettancylus burnupi (B. Walker, 1912)
Ancylus caffer Krauss, 1848 accepted as Burnupia caffra (Krauss, 1848)
Ancylus calcarius De Kay, 1843 accepted as Ferrissia rivularis (Say, 1817)
Ancylus caliculatus Bourguignat, 1862 (uncertain > taxon inquirendum )
Ancylus capuloides Jan, 1838