Amphiporidae Oersted, 1844 (basis of record)
Amphiporus Ehrenberg, 1831 (basis of record)
Amphiporus allucens Bürger, 1895 (basis of record)
Amphiporus bioculatus sensu Verrill, 1892 (basis of record)
Amphiporus dissimulans Riches, 1893 (basis of record)
Amphiporus lactifloreus (Johnston, 1828) (basis of record)
Amphiporus langiaegeminus Bürger, 1895 (basis of record)
Baseodiscus Diesing, 1850 (basis of record)
Baseodiscus delineatus (Delle Chiaje, 1822) (basis of record)
Bdellonemertea accepted as Malacobdellidae Blanchard, 1847 (basis of record)
Callinera Bergendal, 1900 (basis of record)
Callinera buergeri Bergendal, 1900 (basis of record)
Callinera monensis Rogers, Gibson & Thorpe, 1992 (basis of record)
Carcinonemertes Coe, 1902 (basis of record)
Carcinonemertidae Sumner, Osburn & Cole, 1913 (basis of record)
Carinesta Punnett, 1900 (basis of record)
Carinesta anglica Wijnhoff, 1912 (basis of record)
Carinina Hubrecht, 1885 (basis of record)
Carinina arenaria Hylbom, 1957 (basis of record)
Carinina coei Hylbom, 1957 (basis of record)
Carinoma Oudemans, 1885 (basis of record)
Carinoma armandi (McIntosh, 1875) (basis of record)
Carinomidae Bergendal, 1900 (basis of record)
Cephalothricidae accepted as Cephalotrichidae McIntosh, 1873-1874 (basis of record)
Cephalothrix Örsted, 1843 (basis of record)
Cephalothrix arenaria Hylbom, 1957 (basis of record)
Cephalothrix linearis (Rathke, 1799) (basis of record)
Cephalothrix rufifrons (Johnston, 1837) (basis of record)
Cerebratulidae accepted as Lineidae (basis of record)
Cerebratulus Renier, 1804 (basis of record)
Cerebratulus alleni Wijnhoff, 1912 (basis of record)
Cerebratulus fuscus (McIntosh, 1874) (basis of record)
Cerebratulus marginatus Renier, 1804 (basis of record)
Cerebratulus pantherinus Hubrecht, 1879 (basis of record)
Cerebratulus roseus (Delle Chiaje, 1841) (basis of record)
Cratenemertidae Friedrich, 1968 (basis of record)
Drepanophoridae (basis of record)
Emplectonema echinoderma (Marion, 1873) (basis of record)
Emplectonema gracile (Johnston, 1837) (basis of record)
Emplectonematidae Bürger, 1904 (basis of record)
Euborlasia Vaillant, 1890 (basis of record)
Euborlasia elizabethae (McIntosh, 1873-1874) (basis of record)
Heteronemertea (basis of record)
Hoplonemertea (basis of record)
Hoplonemertini represented as Hoplonemertea (basis of record)
Hubrechtella Bergendal, 1902 (basis of record)
Hubrechtella dubia Bergendal, 1902 (basis of record)
Hubrechtiidae Bürger, 1892 (basis of record)
Leucocephalonemertes Cantell, 1996 (basis of record)
Leucocephalonemertes aurantiaca (Grube, 1855) (basis of record)
Lineidae (basis of record)
Lineus Sowerby, 1806 (basis of record)
Lineus acutifrons Southern, 1913 (basis of record)
Lineus bilineatus (Renier, 1804) accepted as Siphonenteron bilineatum Meneghini in Renier, 1847 (basis of record)
Lineus coccinus Bürger, 1892 (basis of record)
Lineus grubei (Hubrecht, 1879) (basis of record)
Lineus longissimus (Gunnerus, 1770) (basis of record)
Lineus ruber (Müller, 1774) (basis of record)
Lineus viridis (Müller, 1774) (basis of record)
Malacobdella Blainville, 1827 (basis of record)
Malacobdella grossa (Müller, 1776) (basis of record)
Malacobdellidae Blanchard, 1847 (basis of record)
Micrella Punnett, 1901 accepted as Zygeupolia Thompson, 1900 (basis of record)
Micrella rufa Punnett, 1901 accepted as Zygeupolia rufa (Punnett, 1901) (basis of record)
Micrura Ehrenberg, 1828 (basis of record)
Micrura baltica Cantell, 1975 (basis of record)
Micrura elegans Senz, 1993 (basis of record)
Micrura fasciolata Ehrenberg, 1828 (basis of record)
Micrura pseudovaricolor Senz, 1993 (basis of record)
Micrura purpurea (Dalyell, 1853) (basis of record)
Micrura rockalliensis Dollfus, 1924 (basis of record)
Micrura scotica Stephenson, 1911 (basis of record)
Monostilifera (basis of record)
Nemertopsis flavida (McIntosh, 1873-1874) (basis of record)
Nipponnemertes Friedrich, 1968 accepted as Nipponnemertes Gibson & Crandall, 1989 (basis of record)
Nipponnemertes pulcher (Johnston, 1837) accepted as Nipponnemertes pulchra (Johnston, 1837) (basis of record)
Oerstedia Quatrefages, 1846 (basis of record)
Oerstedia crassus (Senz, 1993) (basis of record)
Oerstedia dorsalis (Abildgaard, 1806) (basis of record)
Oerstedia immutabilis (Riches, 1893) (basis of record)
Oerstedia nigra (Riches, 1893) (basis of record)
Oxypolia Punnett, 1901 (basis of record)
Oxypolia beaumontiana Punnett, 1901 (basis of record)
Palaeonemertea (basis of record)
Paradrepanophoridae Stiasny-Wijnhoff (basis of record)
Paradrepanophorus Stiasny-Wijnhoff, 1926 (basis of record)
Paradrepanophorus crassus (Quatrefages, 1846) (basis of record)
Poliopsis Joubin, 1890 (basis of record)
Poliopsis lacazei Joubin, 1890 (basis of record)
Polystilifera (basis of record)
Procephalothrix Wijnhoff, 1913 accepted as Cephalothrix Örsted, 1843 (basis of record)
Procephalothrix filiformis (Johnston, 1828) accepted as Cephalothrix filiformis (Johnston, 1828) (basis of record)
Prosorhochmidae Bürger, 1895 (basis of record)
Prosorhochmus Keferstein, 1862 (basis of record)
Prosorhochmus claparedii Keferstein, 1862 (basis of record)
Protubulanus Chernyshev, 1995 (basis of record)
Protubulanus theeli (Bergendal, 1902) (basis of record)
Psammamphiporus elongatus (Stephenson, 1911) (basis of record)
Punnettia Stiasny-Wijnhoff, 1926 (basis of record)
Punnettia splendida (Keferstein, 1862) (basis of record)