• Abyssocucumis abyssorum (Théel, 1886)
• Acanthotrochus mirabilis Danielssen & Koren, 1881
• Achiridota ingolfi Heding, 1935 accepted as Paradota ingolfi (Heding, 1935) Heding in Ludwig & Heding, 1935
• Achiridota profunda Heding, 1935
• Achlyonice myriamae Gebruk, 1997
• Actinopyga agassizii (Selenka, 1867)
• Amperima furcata (Hérouard, 1899)
• Amperima rosea (E. Perrier, 1886)
• Ankyroderma affine Danielssen & Koren, 1881 accepted as Molpadia borealis Sars M, 1859
• Ankyroderma danielsseni Théel, 1886 accepted as Molpadia musculus Risso, 1826
• Ankyroderma hispanicum Petit, 1883 accepted as Molpadia musculus Risso, 1826
• Ankyroderma jeffreysii Danielssen & Koren, 1881 accepted as Molpadia jeffreysi (Danielssen & Koren, 1881) accepted as Molpadia borealis Sars M, 1859
• Ankyroderma loricatum Perrier R., 1898 accepted as Molpadia musculus Risso, 1826
• Ankyroderma maroccanum R. Perrier, 1898 accepted as Molpadia maroccana (R. Perrier, 1898)
• Ankyroderma perrieri Petit, 1883 accepted as Molpadia musculus Risso, 1826
• Aslia lefevrei (Barrois, 1882)
• Bathyplotes assimilis Koehler & Vaney, 1905 accepted as Bathyplotes natans (M. Sars, 1868)
• Bathyplotes bipartitus Hérouard, 1912 accepted as Bathyplotes natans (M. Sars, 1868)
• Bathyplotes fallax Östergren, 1896 accepted as Bathyplotes natans (M. Sars, 1868)
• Bathyplotes heterostylides Heding, 1942 accepted as Bathyplotes natans (M. Sars, 1868)
• Bathyplotes moseleyi (Théel, 1886)
• Bathyplotes natans (M. Sars, 1868)
• Bathyplotes östergreni Ohshima, 1915 accepted as Bathyplotes natans (M. Sars, 1868)
• Bathyplotes papillosus Koehler & Vaney, 1905 accepted as Bathyplotes natans (M. Sars, 1868)
• Bathyplotes patagiatus Fisher, 1907 accepted as Bathyplotes natans (M. Sars, 1868)
• Bathyplotes pourtalesii (Théel, 1886)
• Bathyplotes reptans R. Perrier, 1902 accepted as Bathyplotes natans (M. Sars, 1868)
• Bathyplotes tizardi (Théel, 1882) accepted as Bathyplotes natans (M. Sars, 1868)
• Benthodytes glutinosa Perrier R., 1896 accepted as Benthodytes typica Théel, 1882
• Benthodytes janthina Marenzeller von, 1892 (uncertain > nomen dubium)
• Benthodytes lingua Perrier R., 1896
• Benthodytes typica Théel, 1882
• Benthogone quadrilineata Heding, 1940 accepted as Benthogone rosea Koehler, 1895
• Benthogone rosea Koehler, 1895
• Benthothuria funebris Perrier R., 1898
• Benthothuria valdiviae Heding, 1940 accepted as Benthothuria funebris Perrier R., 1898
• Caudina albicans (Théel, 1886) accepted as Hedingia albicans (Théel, 1886) Deichmann, 1938
• Cherbonniera utriculus Sibuet, 1974
• Chiridota abyssicola Marenzeller von, 1892 accepted as Chiridota laevis (O. Fabricius, 1780)
• Chiridota brevis Huxley, 1852 accepted as Myriotrochus rinkii Steenstrup, 1851
• Chiridota groenlandica Heding, 1935 accepted as Chiridota laevis (O. Fabricius, 1780)
• Chiridota laevis (O. Fabricius, 1780)
• Chiridota laevis C.G.J. Petersen, 1898 accepted as Chiridota laevis (O. Fabricius, 1780)
• Chiridota spirourna Heding, 1935 accepted as Chiridota laevis (O. Fabricius, 1780)
• Chiridota venusta Semon, 1887 accepted as Taeniogyrus venustus (Semon, 1887)
• Cladodactyla planci Brandt, 1835 accepted as Ocnus planci (Brandt, 1835)
• Cladodactyla syracusana Grube, 1840 accepted as Pseudocnella syracusana (Grube, 1840) accepted as Hemiocnus syracusanus (Grube, 1840)
• Colochirus lacazii Hérouard, 1889 accepted as Aslia lefevrei (Barrois, 1882)
• Cryodora spongiosa Théel, 1879 accepted as Laetmogone violacea Théel, 1879
• Cucumaria abyssorum Auctt. non Théel, 1886 accepted as Abyssocucumis abyssorum (Théel, 1886)
• Cucumaria abyssorum Théel, 1886 accepted as Abyssocucumis abyssorum (Théel, 1886)
• Cucumaria arcuata (Hérouard, 1912)
• Cucumaria assimilis Düben & Koren, 1846 accepted as Cucumaria frondosa (Gunnerus, 1767)
• Cucumaria calcigera (Stimpson, 1851) accepted as Pentamera calcigera Stimpson, 1851
• Cucumaria communis Forbes & Goodsir in Forbes, 1841 accepted as Thyonidium drummondii (Thompson, 1840)
• Cucumaria compressa (R. Perrier, 1898)
• Cucumaria cucumis (Risso, 1826) accepted as Leptopentacta elongata (Düben & Koren, 1846) accepted as Paraleptopentacta elongata (Düben & Koren, 1846)
• Cucumaria dicquemarii M. Sars, 1857 accepted as Ocnus grubei (von Marenzeller, 1874) accepted as Pseudocnus grubei (von Marenzeller, 1874) accepted as Pseudocnus grubii (von Marenzeller, 1874)
• Cucumaria elongata Düben & Koren, 1846 accepted as Leptopentacta elongata (Düben & Koren, 1846) accepted as Paraleptopentacta elongata (Düben & Koren, 1846)
• Cucumaria frondosa (Gunnerus, 1767)
• Cucumaria glacialis Ljungman, 1879 accepted as Ocnus glacialis (Ljungman, 1879)
• Cucumaria grubei von Marenzeller, 1874 accepted as Pseudocnus grubii (von Marenzeller, 1874)
• Cucumaria hispida (Barrett, 1857) accepted as Echinocucumis hispida (Barrett, 1857)
• Cucumaria hyndmanni (Wyville Thompson, 1840) accepted as Panningia hyndmanni (W. Thompson, 1840) accepted as Panningia hyndmani (Thompson, 1840)
• Cucumaria incurvata (Perrier E., 1886) accepted as Leptopentacta tergestina (M. Sars, 1859) accepted as Paraleptopentacta tergestina (Sars, 1859)
• Cucumaria kirchsbergii Heller, 1868 accepted as Stereoderma kirchsbergii (Heller, 1868) Panning, 1949
• Cucumaria Köllikeri Semper, 1868 accepted as Pseudocnus koellikeri (Semper, 1868)
• Cucumaria korenii Lütken, 1857 accepted as Pentamera calcigera Stimpson, 1851
• Cucumaria lefevrii Barrois, 1882 accepted as Aslia lefevrei (Barrois, 1882)
• Cucumaria marionii Marenzeller von, 1877 accepted as Neocucumis marionii (Marenzeller von, 1877)
• Cucumaria mauritanica Hérouard, 1929 accepted as Paracucumaria mauritanica (Hérouard, 1929)
• Cucumaria mosterensis Grieg, 1889 accepted as Ocnus lacteus (Forbes & Goodsir, 1839)
• Cucumaria nobilis Ludwig, 1875 accepted as Thyonidium drummondii (Thompson, 1840)
• Cucumaria normani Pace, 1904 accepted as Aslia lefevrei (Barrois, 1882)
• Cucumaria paraglacialis Heding, 1942
• Cucumaria pentactes of Forbes, 1841 non (Linnaeus, 1767) accepted as Leptopentacta elongata (Düben & Koren, 1846) accepted as Paraleptopentacta elongata (Düben & Koren, 1846)
• Cucumaria perspicua Ludwig, 1875 accepted as Thyonidium drummondii (Thompson, 1840)
• Cucumaria saxicola Brady & Robertson, 1871 accepted as Pawsonia saxicola (Brady & Robertson, 1871)
• Cucumaria sluiteri Ohshima, 1915 accepted as Abyssocucumis abyssorum (Théel, 1886)
• Cucumaria syracusana Auctt. accepted as Ocnus syracusanus (Grube, 1840) accepted as Pseudocnella syracusana (Grube, 1840) accepted as Hemiocnus syracusanus (Grube, 1840)
• Cucumaria tergestina Sars M, 1859 accepted as Leptopentacta tergestina (M. Sars, 1859) accepted as Paraleptopentacta tergestina (Sars, 1859)
• Cuvieria fabricii Düben & Koren, 1846 accepted as Psolus fabricii (Düben & Koren, 1846)
• Cuvieria operculata Pourtalès, 1868 accepted as Psolus operculatus (Pourtalès, 1868)
• Deima atlanticum Hérouard, 1898 accepted as Deima validum validum Théel, 1879
• Deima blakei Théel, 1886 accepted as Deima validum validum Théel, 1879
• Deima validum Théel, 1879 represented as Deima validum validum Théel, 1879
• Deima validum validum Théel, 1879
• Dendrothuria similis Koehler & Vaney, 1905
• Echinocucumis hispida (Barrett, 1857)
• Echinocucumis hispida var. abyssalis Koehler, 1896 accepted as Ypsilothuria talismani talismani E. Perrier, 1886
• Echinocucumis typica M. Sars, 1859 accepted as Echinocucumis hispida (Barrett, 1857)
• Echinosoma hispidum Semper, 1867 accepted as Eupyrgus scaber Lütken, 1857
• Ekmania barthii (Troschel, 1846)
• Ellipinion delagei (Hérouard, 1896)
• Elpidia echinata (R. Perrier, 1896)
• Elpidia glacialis Théel, 1876
• Elpidia glacialis glacialis Théel, 1876 accepted as Elpidia glacialis Théel, 1876
• Elpidia nana Théel, 1879 accepted as Kolga nana (Théel, 1879)
• Enypniastes diaphana (Gilchrist, 1920) accepted as Enypniastes eximia Théel, 1882
• Enypniastes eximia Théel, 1882