Cucumariidae Ludwig, 1894
Trachythyone bollonsi (Mortensen, 1925)
Trachythyone bouvatensis
Trachythyone bouvetensis (Ludwig & Heding, 1935)
Trachythyone candida O'Loughlin & O'Hara, 1992
Trachythyone corbicula Cherbonnier, 1964
Trachythyone crassipeda Cherbonnier, 1961
Trachythyone cynthiae O'Loughlin, 2009
Trachythyone fallax Cherbonnier, 1958
Trachythyone glaberrima (Semper, 1869)
Trachythyone glebosa O'Loughlin & O'Hara, 1992
Trachythyone improvisa (Ludwig, 1875)
Trachythyone lechleri (Lampert, 1885)
Trachythyone mackenzieae O'Loughlin, 2009
Trachythyone macphersonae Pawson, 1962
Trachythyone maxima Massin, 1992
Trachythyone muricata Studer, 1876
Trachythyone nelladana O'Hara, 1999
Trachythyone nina (Deichmann, 1930)
Trachythyone parva (Ludwig, 1875)
Trachythyone peruana (Semper, 1868)
Trachythyone poculis (O'Loughlin)
Trachythyone rigidapeda (Cherbonnier, 1952)
