Hemithersitea arambourgi Salvan, 1955 †
Hemithersitea chouberti Salvan, 1955 †
Hemithersitea kanerus Bose, Das & Saha, 2023 †
Hemithersitea maroccana Savornin, 1914 †
Hemithersitea nadharus Bose, Das & Saha, 2023 †
Oostrombus auricularius (Grateloup, 1834) †
Oostrombus problematicus (Michelotti, 1861) †
Orthaulax aguadillensis Maury, 1920 †
Orthaulax caepa C. W. Cooke, 1922 †
Orthaulax conoides Woodring, 1923 †
Orthaulax dainellii Savazzi, 1989 †
Orthaulax gabbi Dall, 1890 †
Orthaulax hernandoensis (Mansfield, 1937) †
Orthaulax inornatus Gabb, 1873 †
Orthaulax inornatus altilis Pilsbry, 1922 † (uncertain > taxon inquirendum )
Orthaulax pugnax (Heilprin, 1887) †
Orthaulax pugnax hernandoensis Manfield, 1937 † accepted as Orthaulax hernandoensis (Mansfield, 1937) †