Costatophora borialis (C.F. Laseron, 1958)
Costatophora granifera (J.W. Brazier, 1894)
Costatophora iniqua (F.P. Jousseaume, 1898)
Costatophora mapoonensis (C.F. Laseron, 1958)
Costatophora mcgilpi (B.C. Cotton, 1952)
Costatophora pallida (S. Kosuge, 1962)
Costatophora princeps (G.B. III Sowerby, 1904)
Costatophora pulcherrima (FOSSIL) Darragh, 2017 †
Costatophora serana (P.J. Fischer, 1927)
Differoforis montrouzieri (R.P.J. Hervier, 1898)
Inella acicula C.F. Laseron, 1958
Inella aculeata S. Kosuge, 1962
Inella aoteaensis (FOSSIL) (P. Marshall& R. Murdoch, 1920 †)
Inella apexbilirata E. Rolán& R. Fernández-Garcés, 2008
Inella asperrima (R.B. Hinds, 1843)
Inella blainvilli F.P. Jousseaume, 1884
Inella carinata B.A. Marshall, 1983
Inella chrysalis S. Kosuge, 1963
Inella colon (W.H. Dall, 1881)
Inella dauciformis (FOSSIL) Darragh, 2017 †
Inella differens E. Rolán & H.G. Lee, 2008
Inella faberi E. Rolán& R. Fernández-Garcés, 2008
Inella gemmulata (A. Adams & L.A. Reeve,1850)
Inella gigas (R.B. Hinds, 1843)
Inella harryleei E. Rolán& R. Fernández-Garcés, 2008
Inella ile F.P. Jousseaume, 1898
Inella inflata (R.B. Watson, 1880)
Inella intercalaris B.A. Marshall, 1983
Inella intermedia (W.H. Dall, 1881)
Inella japonica J.T. Kuroda & T. Habe,1963
Inella kimblae B.A. Marshall, 1983
Inella lanceolata S. Kosuge, 1962
Inella longissima (W.H. Dall, 1881)
Inella mariei F.P. Jousseaume, 1884
Inella micans (R.B. Hinds, 1843)
Inella moniliferata (FOSSIL) Darragh, 2017 †
Inella multitecta S. Kosuge, 1962
Inella noduloides E. Rolán& R. Fernández-Garcés, 2008
Inella numerosa F.P. Jousseaume, 1898
Inella obliqua (W.L. May, 1915)