Amphioplus daleus (Lyman, 1879) represented as Amphioplus (Unioplus) daleus (Lyman, 1879) accepted as Silax daleus (Lyman, 1879) (basis of record)
Aricidea (Allia) belgicae (Fauvel, 1936) accepted as Aricidea (Strelzovia) belgicae (Fauvel, 1936) (basis of record)
Baculella globofera Tendal & Hessler, 1977 (basis of record)
Columnella Levinsen, 1914 (basis of record)
Columnella magna (Busk, 1884) (basis of record)
Cystammina Neumayr, 1889 (basis of record)
Cystammina pauciloculata (Brady, 1879) (basis of record)
Diaphus rafinesquei (Cocco, 1838) accepted as Diaphus rafinesquii (Cocco, 1838) (basis of record)
Discinidae Gray, 1840 (basis of record)
Eusamytha McIntosh, 1885 accepted as Samythella Verrill, 1873 (basis of record)
Flabelliderma Hartman, 1969 (additional source)
Flabelligella papillata Hartman, 1965 (basis of record)
Hadacypridina Poulsen, 1962 (basis of record)
Haploniscus spinifer Hansen, 1916 (basis of record)
Ipoa Tendal & Hessler, 1977 (basis of record)
Ipoa fragila Tendal & Hessler, 1977 (additional source)
Jakobia Zenkevitch, 1958 (basis of record)
Maxmuelleria verrucosum (Studer, 1879) (basis of record)
Nereis kerguelensis McIntosh, 1885 accepted as Neanthes kerguelensis (McIntosh, 1885) (basis of record)
Normanina Cushman, 1928 (basis of record)
Prometor Fisher, 1948 (basis of record)
Protobonellia Ikeda, 1908 (basis of record)
Rhopalorhynchus Wood-Mason, 1873 (basis of record)
Scleroconcha Skogsberg, 1920 (basis of record)
Seguenzia carinata Jeffreys, 1877 accepted as Carenzia carinata (Jeffreys, 1877) (basis of record)
Septuma Tendal & Hessler, 1977 (basis of record)
Septuma ocotillo Tendal & Hessler, 1977 (basis of record)
Sluiterina Monro, 1927 (additional source)
Syneurycope parallela Hansen, 1916 (basis of record)