1. Genus Asiaharpa Raven, 2021 †
2. Subfamily Cryptochordinae Korobkov, 1955 †
   1. Genus Cryptochorda Mörch, 1858 †
3. Subfamily Harpinae Bronn, 1849
   1. Genus Austroharpa H. J. Finlay, 1931
   2. Genus Eocithara P. Fischer, 1883 †
   3. Genus Harpa Röding, 1798
   4. Genus Deniharpa Iredale, 1931 † accepted as Austroharpa H. J. Finlay, 1931 (unavailable name: no description)
   5. Genus Harpalis Link, 1807 accepted as Harpa Röding, 1798
   6. Genus Palamharpa Iredale, 1931 accepted as Austroharpa H. J. Finlay, 1931
   7. Genus Refluharpa Iredale, 1931 † accepted as Eocithara (Refluharpa) Rehder, 1973 † accepted as Eocithara P. Fischer, 1883 † (unavailable name: no description)
   8. Genus Trameharpa Iredale, 1931 † accepted as Austroharpa H. J. Finlay, 1931 (unavailable name: no description)
4. Subfamily Moruminae Hughes & W. K. Emerson, 1987
   1. Genus Morum Röding, 1798
   2. Genus Herculea H. Adams & A. Adams, 1858 accepted as Morum (Herculea) H. Adams & A. Adams, 1858 represented as Morum Röding, 1798
   3. Genus Lambidium Link, 1807 accepted as Morum Röding, 1798
   4. Genus Onimusiro Kuroda, T. Habe & Oyama, 1971 accepted as Morum Röding, 1798
   5. Genus Oniscia G. B. Sowerby I, 1825 accepted as Morum Röding, 1798 (unaccepted > junior subjective synonym)
   6. Genus Oniscidia Mörch, 1852 accepted as Morum (Oniscidia) Mörch, 1852 represented as Morum Röding, 1798
   7. Genus Pulchroniscia Garrard, 1961 accepted as Morum (Oniscidia) Mörch, 1852 represented as Morum Röding, 1798
5. Genus Cithara Jousseaume, 1881 accepted as Harpa Röding, 1798 (junior subjective synonym)

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