• Cryptosoma pallidum (Koren & Danielssen, 1876) accepted as Phascolion tuberculosum Théel, 1875
• Cryptosoma strombi (Montagu, 1804) accepted as Phascolion strombus (Montagu, 1804)
• Cryptosomum spitzbergense (Théel, 1875) accepted as Phascolion strombus (Montagu, 1804)
• Isomya convestitum (Sluiter, 1902)
• Isomya dentalicola Satô, 1937 accepted as Isomya hedraeum (Selenka & de Man in Selenka, de Man & Bülow, 1883)
• Isomya gerardi (Rice, 1993)
• Isomya hedraeum (Selenka & de Man in Selenka, de Man & Bülow, 1883)
• Isomya hirondellei Sluiter, 1900 accepted as Isomya tuberculosum (Théel, 1875)
• Isomya kurchatovi Murina, 1974 accepted as Isomya hedraeum (Selenka & de Man in Selenka, de Man & Bülow, 1883)
• Isomya lucifugax (Selenka & de Man in Selenka, de Man & Bülow, 1883)
• Isomya microspheroidi Cutler & Duffy, 1972 accepted as Isomya microspheroidis (Cutler & Duffy, 1972)
• Isomya microspheroidis (Cutler & Duffy, 1972)
• Isomya pallidum Koren & Danielssen, 1877 accepted as Isomya tuberculosum (Théel, 1875)
• Isomya temporariae Edmonds, 1976 accepted as Isomya tuberculosum (Théel, 1875)
• Isomya tuberculosum (Théel, 1875)
• Lesenka collare (Selenka & de Man in Selenka, de Man & Bülow, 1883)
• Lesenka cryptum (Hendrix, 1975)
• Lesenka cryptus Hendrix, 1975 accepted as Lesenka cryptum (Hendrix, 1975)
• Lesenka hupferi (Fischer, 1895)
• Lesenka indicus Murina, 1974 accepted as Lesenka hupferi (Fischer, 1895)
• Lesenka rectum (Ikeda, 1904)
• Lesenka valdiviae (Fischer, 1916)
• Montuga lutense (Selenka, 1885)
• Onchnesoma glaciale Danielssen & Koren, 1880 accepted as Nephasoma lilljeborgi (Danielssen & Koren, 1880)
• Onchnesoma intermedium Murina, 1976
• Onchnesoma magnibatha Cutler, 1969
• Onchnesoma magnibathum E.B. Cutler, 1969
• Onchnesoma squamatum (Koren & Danielssen, 1875)
• Onchnesoma steenstrupi Koren & Danielssen, 1876
• Onchnesoma steenstrupii Koren & Danielssen, 1876
• Phascolion abnorme W. Fischer, 1894
• Phascolion africanum Fischer, 1923 accepted as Phascolion strombus (Montagu, 1804)
• Phascolion alberti Sluiter, 1900 accepted as Phascolion strombus (Montagu, 1804)
• Phascolion anomalus Murina, 1981 accepted as Phascolion strombus (Montagu, 1804)
• Phascolion antillarum accepted as Antillesoma antillarum (Grube, 1858)
• Phascolion artificiosum Ikeda, 1904 accepted as Phascolion strombus (Montagu, 1804)
• Phascolion artificiosus Ikeda, 1904 accepted as Phascolion strombus (Montagu, 1804)
• Phascolion beklemischevi Murina, 1964 accepted as Isomya convestitum (Sluiter, 1902)
• Phascolion bogorovi Murina, 1973
• Phascolion brotzkajae Murina, 1964 accepted as Phascolion strombi (Montagu, 1804)
• Phascolion caementarium (De Quatrefages, 1865) accepted as Phascolion strombus (Montagu, 1804)
• Phascolion canum Cutler & Cutler, 1980 accepted as Phascolion lutense Selenka, 1885
• Phascolion caupo Hendrix, 1975
• Phascolion cirratum Murina, 1968
• Phascolion cirratus Murina, 1968 accepted as Phascolion cirratum Murina, 1968
• Phascolion collare Selenka & De Man, 1883
• Phascolion convestitum Sluiter, 1902
• Phascolion convestitus Sluiter, 1902 accepted as Isomya convestitum (Sluiter, 1902)
• Phascolion cronullae Edmonds, 1980 accepted as Phascolion strombus (Montagu, 1804)
• Phascolion cryptum Hendrix, 1975
• Phascolion cryptus Hendrix, 1975 accepted as Phascolion cryptum Hendrix, 1975
• Phascolion dentalicola Satô, 1937 accepted as Phascolion hedraeum Selenka & de Man, 1883
• Phascolion dentalicolum Satô, 1937 accepted as Phascolion hedraeum Selenka & de Man, 1883
• Phascolion denticolum Sato, 1937 accepted as Phascolion hedraeum Selenka & de Man, 1883
• Phascolion dogieli Murina, 1964 accepted as Onchnesoma steenstrupii Koren & Danielssen, 1876
• Phascolion gerardi Rice, 1993
• Phascolion hedraeum Selenka & de Man, 1883
• Phascolion heteropapillosum Wesenberg-Lund, 1963 accepted as Phascolion abnorme W. Fischer, 1894
• Phascolion hibridum Murina, 1981
• Phascolion hibridus Murina, 1981 accepted as Phascolion hibridum Murina, 1981
• Phascolion hirondellei Sluiter, 1900 accepted as Phascolion tuberculosum Théel, 1875
• Phascolion hupferi W. Fischer, 1894
• Phascolion indicus Murina, 1974 accepted as Phascolion hupferi W. Fischer, 1894
• Phascolion kurchatovi Murina, 1974 accepted as Phascolion hedraeum Selenka & de Man, 1883
• Phascolion lucifugat accepted as Phascolion lucifugax Selenka & De Man, 1883
• Phascolion lucifugax Selenka & De Man, 1883
• Phascolion lutense Selenka, 1885
• Phascolion mediterraneum Fischer, 1922 accepted as Isomya convestitum (Sluiter, 1902)
• Phascolion medusae E.B. Cutler & N.J. Cutler, 1980
• Phascolion megaethi E.B. Cutler & N.J. Cutler, 1979
• Phascolion microspheroides Cutler & Duffy, 1972 accepted as Phascolion tuberculosum Théel, 1875
• Phascolion microspheroidi Cutler & Duffy, 1972 accepted as Phascolion microspheroidis E.B. Cutler & Duffy, 1972
• Phascolion microspheroidis E.B. Cutler & Duffy, 1972
• Phascolion mogadorense Sluiter, 1912 accepted as Phascolion tuberculosum Théel, 1875
• Phascolion murrayi Stephen, 1941 accepted as Phascolion valdiviae W. Fischer, 1916
• Phascolion pacificum Murina, 1957
• Phascolion pallidum (Koren & Danielssen, 1876) accepted as Phascolion tuberculosum Théel, 1875
• Phascolion pharetratum Sluiter, 1902
• Phascolion psammophilum Rice, 1993 accepted as Phascolion psammophilus Rice, 1993
• Phascolion psammophilus Rice, 1993
• Phascolion rectum Ikeda, 1904
• Phascolion rectus Ikeda, 1904 accepted as Phascolion rectum Ikeda, 1904
• Phascolion robertsoni Stephen & J.D. Robertson, 1952
• Phascolion spetsbergense Théel, 1875 accepted as Phascolion strombus (Montagu, 1804)
• Phascolion spitzbergense (Théel, 1875) accepted as Phascolion strombus (Montagu, 1804)
• Phascolion strombi (Montagu, 1804)
• Phascolion strombus (Montagu, 1804)
• Phascolion sumatrense Fischer, 1916 accepted as Phascolion valdiviae W. Fischer, 1916
• Phascolion temporariae Edmonds, 1976 accepted as Phascolion tuberculosum Théel, 1875
• Phascolion tortum Edmonds, 1976 accepted as Phascolion strombus (Montagu, 1804)
• Phascolion tridens Selenka & De Man, 1883 accepted as Phascolion collare Selenka & De Man, 1883
• Phascolion tuberculosum Théel, 1875
• Phascolion tubicola (Verrill, 1873) accepted as Phascolion strombus (Montagu, 1804)
• Phascolion tubicolum (Verrill, 1873) accepted as Phascolion strombus (Montagu, 1804)
• Phascolion ushakovi Murina, 1974
• Phascolion valdiviae W. Fischer, 1916
• Tylosoma lytkenii Koren & Danielssen, 1876 accepted as Isomya tuberculosum (Théel, 1875)
• Villiophora cirratum (Murina, 1968)
• Villiophora cirratus Murina, 1968 accepted as Villiophora cirratum (Murina, 1968)