• Bhatiella iwamusii (Tugawa, 1944)
• Bhatiella marphysae Setna, 1931
• Bhatiella morphysae Setna, 1931 accepted as Bhatiella marphysae Setna, 1931
• Chlamydocystis captiva Dogel, 1910
• Cochleomeritus emersoni Levine, 1973
• Cochleomeritus lysidici (Tugawa, 1944)
• Conorhynchus gibbosus Greeff, 1880 accepted as Zygosoma gibbosum Greeff, 1880
• Contortiocorpa prashadi Bhatia & Setna, 1938
• Cotyloepimeritus iwamusii (Tugawa, 1944) accepted as Bhatiella iwamusii (Tugawa, 1944)
• Cygnicollum aphroditae Lankester, 1863 accepted as Lecudina aphroditae Lankester, 1863
• Cygnicollum attenuatum Bogolepova, 1953 accepted as Lecudina attenuata Bogolepova, 1953
• Cygnicollum heterocephala Mingazzini, 1891 accepted as Lecudina heterocephala Mingazzini, 1891
• Cygnicollum lankesteri Théodoridès & Desportes, 1986 accepted as Lecudina lankesteri (Théodoridès & Desportes, 1986)
• Cygnicollum laubieri Théodoridès, 1969 accepted as Lecudina laubieri Théodoridès, 1969
• Cygnicollum longicephala Ganapati, 1946 accepted as Lecudina longicephala Ganapati, 1946
• Cytomorpha diazonae Mingazzini, 1891 accepted as Lankesteria diazonae Mingazzini, 1891
• Difficilina cerebratuli Simdyanov, 2009
• Difficilina paranemertis Rueckert, Chantangsi & Leander, 2010
• Difficilina tubulani Rueckert, Chantangsi & Leander, 2010
• Diplauxis hatti Vivier, Ormieres & Tuzet, 1964
• Diplauxis schreveli Porchet-Hemeré & Fischer, 1973
• Doliocystis aphroditae Lankester, 1863 accepted as Lecudina aphroditae Lankester, 1863
• Doliocystis criodrilii Sciacchitano, 1931 accepted as Lecudina criodrilii Sciacchitano, 1931
• Doliocystis heterocephala Mingazzini, 1891 accepted as Lecudina heterocephala Mingazzini, 1891
• Doliocystis legeri Brasil, 1909 accepted as Lecudina legeri Brasil, 1909
• Doliocystis polydorae Léger, 1893 accepted as Lecudina polydorae Léger, 1893
• Doliocystis rhyncoboli Crawley, 1903 accepted as Ulivina rhyncoboli Crawley, 1903
• Extremocystis dendrostomi Setna, 1931
• Ferraria cornucephala Setna, 1931 accepted as Bhatiella marphysae Setna, 1931
• Hentschelia thalassemae Mackinnon & Ray, 1931
• Hyperidion neptuni Reichenow, 1932 accepted as Hyperidion thalassemae Mackinnon & Ray, 1931
• Hyperidion thalassemae Mackinnon & Ray, 1931
• Koellikerella staurocephali Mingazzini, 1891 accepted as Lecudina staurocephali (Mingazzini, 1891)
• Koellikeria staurocephali Mingazzini, 1891 accepted as Lecudina staurocephali (Mingazzini, 1891)
• Lankesteria abbotti Levine, 1981
• Lankesteria acutissima Ormières, 1965
• Lankesteria amaroucii (Giard, 1873)
• Lankesteria aplidii Levine, 1981
• Lankesteria ascidiae (Lankester, 1872)
• Lankesteria ascidiellae Duboscq & Harant, 1923
• Lankesteria botrylli Ormières, 1965
• Lankesteria clavellinae (von Köllicker, 1848) Labbé, 1899
• Lankesteria cystodytae
• Lankesteria diaphanis Levine, 1981
• Lankesteria diazonae Mingazzini, 1891
• Lankesteria distapliae Mingazzini, 1891
• Lankesteria euherdmaniae Levine, 1981
• Lankesteria giardi Mingazzini, 1893
• Lankesteria gigantea Ormières, 1965
• Lankesteria globosa Ormières, 1965
• Lankesteria gracilis Ormières, 1965
• Lankesteria gyriniformis Ormières, 1965
• Lankesteria maculata Ormières, 1965
• Lankesteria molgulidarum Ormières, 1965
• Lankesteria monstrosa Ormières, 1965
• Lankesteria montereyensis Levine, 1981
• Lankesteria morchellii Ormières, 1965
• Lankesteria ormieresi Levine, 1977
• Lankesteria parascidiae Duboscq & Harant, 1923
• Lankesteria perophoropsis Ormières, 1965
• Lankesteria pescaderoensis Levine, 1981
• Lankesteria pittendrighi Levine, 1981
• Lankesteria psammii Levine, 1981
• Lankesteria ritterellae Levine, 1981
• Lankesteria ritterii Levine, 1981
• Lankesteria siedleckii Duboscq & Harant, 1923
• Lankesteria siedlickii Duboscq & Harant, 1923 accepted as Lankesteria siedleckii Duboscq & Harant, 1923
• Lankesteria striata Ormières, 1965
• Lankesteria styelae Ormières, 1965
• Lankesteria synoici Levine, 1981
• Lankesteria tethyi Bogolepova, 1953
• Lankesteria tuzetae Ormières, 1965
• Lankesteria zonata Ormières, 1965
• Lateroprotomeritus conicus Théodoridès & Desportes, 1975
• Lecudina amphora H. Hoshide, 1958
• Lecudina aphroditae Lankester, 1863
• Lecudina arabellae H. Hoshide, 1958
• Lecudina arabellae Schrével, 1963 accepted as Lecudina arabellae H. Hoshide, 1958
• Lecudina arrhyncha Bogolepova, 1953
• Lecudina attenuata Bogolepova, 1953
• Lecudina bhatiai Levine, 1976
• Lecudina bogolepovae (Levine, 1971)
• Lecudina brasili Ganapati & Aiyar, 1937
• Lecudina capitellae Hasselman, 1926
• Lecudina catalinensis Levine, 1974
• Lecudina caudata K. Hoshide, 1977
• Lecudina criodrilii Sciacchitano, 1931
• Lecudina danielae Corbel, Desportes & Théodoridés, 1979
• Lecudina defretini Schrével, 1969
• Lecudina elongata Mingazzini, 1891
• Lecudina eunicae Lankester, 1866
• Lecudina euphrosynes Bogolepova, 1953
• Lecudina fluctus Iitsuka, 1931
• Lecudina fluktus Iitsuka of H. Hoshide, 1958 accepted as Lecudina fluctus Iitsuka, 1931
• Lecudina francianum (Arvy, 1952)
• Lecudina ganapatii Vivier, Ormieres & Tuzet, 1964
• Lecudina hesionis Théodoridès, 1969
• Lecudina heterocephala Mingazzini, 1891
• Lecudina indica Ganapati, 1946
• Lecudina krusadiensis Ganapati, 1946