Austroharpa abbreviata (FOSSIL) (R. Tate, 1889 †)
Morum amabile T. Shikama, 1973
Harpa americana (FOSSIL) H.A. Pilsbry, 1922 †
Harpa amouretta P.F. Röding, 1798
Harpa amouretta crassa (C.F.F. von Krauss, 1848)
Harpa amouretta minor J.B.P.A. Lamarck, 1822
Harpa articularis J.B.P.A. Lamarck, 1822
Andangularia babylona (FOSSIL) A. Nützel & Erwin, 2004 †
Morum bayeri E.J. Petuch, 2001
Eocithara bellardii (FOSSIL) F. Sacco, 1890 †
Morum berschaueri E.J. Petuch & R. Myers,2015
Morum bruuni (A.W.B. Powell, 1958)
Harpa cabriti J.B.P.A. Lamarck, 1816
Harpa cabriti ventricosa J.B.P.A. Lamarck, 1816
Morum cancellatum (G.B. I Sowerby, 1825)
Herculea caracoli (FOSSIL) Anderson, 1928 †
Herculea charanalense (FOSSIL) A.A. Olsson, 1931 †
Oniscidia chipolanum (FOSSIL) W.H. Dall, 1925 †
Oniscidia chiraense (FOSSIL) A.A. Olsson, 1931 †
Oniscidia claibornensis (FOSSIL) Garvie, 2013 †
Morum clatratum P. Bouchet, 2002
Herculea corrugatum (FOSSIL) Clark & J.W. Durham,1946 †
Harpa costata (C. Linnaeus, 1758)
Harpa costata laetifica (J.C. Melvill, 1916)
Harpa costata lutea L. Bozzetti, 2012
Oniscidia coxi (FOSSIL) C.T. Trechmann, 1935 †
Harpa crenata W.J. Swainson, 1822
Harpa daisyae (FOSSIL) B.M. Landau, Frydman,& F. Da Silva, 2012 †
Harpa davidis P.F. Röding, 1798
Morum dennisoni (L.A. Reeve, 1842)
Oniscidia dolioides (FOSSIL) A.A. Olsson, 1931 †
Oniscidia domingense (FOSSIL) (Sowerby, 1850 †)
Morum dominicense (FOSSIL) (J. de C. Sowerby,1849 †)
Harpa doris P.F. Röding, 1798
Harpa doris robusta P.F. Röding, 1798