1. Species Discohelix acarinata J. Szabó, 1979 †
2. Species Discohelix albinatiensis Dumortier, 1874 †
3. Species Discohelix alternatum Gerasimov, 1992 †
4. Species Discohelix calculiformis Dunker, 1847 †
5. Species Discohelix centricostan J. Wendt, 1968 †
6. Species Discohelix conica J. Wendt, 1968 †
7. Species Discohelix costata J. Wendt, 1968 †
8. Species Discohelix cotswoldiae (Lycett, 1850) †
9. Species Discohelix dictyota J. Wendt, 1968 †
10. Species Discohelix disculus (J. Morris & Lycett, 1851) †
11. Species Discohelix excavata (Reuss, 1852) †
12. Species Discohelix ferox (Gümbel, 1861) †
13. Species Discohelix hallstattensis J. Szabó, 2009 †
14. Species Discohelix inornata J. Szabó, 1979 †
15. Species Discohelix levis J. Wendt, 1968 †
16. Species Discohelix lobitzeri J. Szabó, 2009 †
17. Species Discohelix martinianum (A. d'Orbigny, 1842) †
18. Species Discohelix miocarinata J. Szabó, 1979 †
19. Species Discohelix orbis (Reuss, 1852) †
20. Species Discohelix orientalis X.-G. Zhu, 1995 †
21. Species Discohelix ornata (M. Hörnes, 1853) †
22. Species Discohelix pinguis X.-G. Zhu, 1995 †
23. Species Discohelix pseudornata J. Szabó, 2009 †
24. Species Discohelix reticulata Stoliczka, 1861 †
25. Species Discohelix sima J. Szabó, 2009 †
26. Species Discohelix stoliczkai J. Szabó, 2009 †
27. Species Discohelix venustus X.-G. Zhu, 1995 †
28. Subgenus Discohelix (Pentagonodiscus) J. Wendt, 1968 † accepted as Pentagonodiscus Wendt, 1968 †
    1. Species Discohelix (Pentagonodiscus) angusta J. Wendt, 1968 † accepted as Pentagonodiscus angusta (J. Wendt, 1968) † (unaccepted > superseded combination)
29. Subgenus Discohelix (Pseudomalaxis) P. Fischer, 1885 accepted as Pseudomalaxis P. Fischer, 1885 (unaccepted > superseded rank)
    1. Species Discohelix (Pseudomalaxis) aldrovandi [sic] † accepted as Pseudomalaxis aldrovandii (Foresti, 1868) † (unaccepted > misspelling - incorrect subsequent spelling)
    2. Species Discohelix (Pseudomalaxis) calculiformis O. Boettger, 1907 accepted as Pseudomalaxis boettgeri Cossmann, 1916 † accepted as Rotatrigonostoma boettgeri (Cossmann, 1916) † (invalid: junior homonym of Discohelix calculiformis Dunker, 1847; Pseudomalaxis boettgeri is a replacement name)
    3. Species Discohelix (Pseudomalaxis) corniculum O. Boettger, 1902 † accepted as Spirolaxis cornicula (O. Boettger, 1902) † (unaccepted > superseded combination)
    4. Species Discohelix (Pseudomalaxis) extractrix O. Boettger, 1906 † accepted as Trigonostoma extractrix (O. Boettger, 1906) † (unaccepted > superseded combination)
    5. Species Discohelix (Pseudomalaxis) italica Sacco, 1886 † (uncertain > unassessed)
30. Species Discohelix bandeli M. Schröder, 1995 † accepted as Adeuomphalus bandeli (M. Schröder, 1995) † (original combination)
31. Species Discohelix castellii Mantovani, 1891 † accepted as Pseudomalaxis aldrovandii (Foresti, 1868) † (unaccepted > junior subjective synonym)
32. Species Discohelix guembeli Ammon, 1893 † accepted as Costatohelix guembeli (Ammon, 1893) † (original combination)
33. Species Discohelix hedleyi Mestayer, 1916 accepted as Zerotula hedleyi (Mestayer, 1916) (superseded combination)
34. Species Discohelix plicatella Cossmann, 1888 † accepted as Orbitestella plicatella (Cossmann, 1888) † (unaccepted > superseded combination)
35. Species Discohelix quinquangularis O. Boettger, 1902 † accepted as Spirolaxis cornicula (O. Boettger, 1902) † (subjective synonym)
36. Species Discohelix retifera Dall, 1892 accepted as Pseudotorinia retifera (Dall, 1892) (unaccepted > superseded combination)
37. Species Discohelix spinicosta Stoliczka, 1861 † accepted as Asterohelix spinicosta (Stoliczka, 1861) † (unaccepted > superseded combination)
38. Subgenus Discohelix (Discosolis) Dall, 1892 represented as Discosolis Dall, 1892 accepted as Pseudomalaxis P. Fischer, 1885 (junior subjective synonym)
    1. Species Discohelix (Discosolis) retifera Dall, 1892 accepted as Pseudotorinia retifera (Dall, 1892) (unaccepted > superseded combination)
39. Species Discohelix californicus C. E. Weaver, 1905 † (uncertain > unassessed)
40. Species Discohelix elegantula Douvillé, 1916 † (uncertain > unassessed)
41. Species Discohelix italica Sacco, 1886 † (uncertain > unassessed)
42. Species Discohelix pontileviensis de Morgan, 1916 † (uncertain > unassessed)

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