Amphiporidae Örsted, 1843 (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)
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)
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, 1874 (basis of record)
Cephalothrix Örsted, 1843 (basis of record)
Cephalothrix arenaria Hylbom, 1957 (basis of record)
Cephalothrix linearis (Rathke, 1799) (additional source)
Cephalothrix rufifrons (Johnston, 1837) (basis of record)
Cerebratulidae Gibson, 1985 accepted as Lineidae McIntosh, 1874 (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 Verrill, 1892 (basis of record)
Emplectonema echinoderma (Marion, 1873) (basis of record)
Emplectonema gracile (Johnston, 1837) (basis of record)
Emplectonematidae Bürger, 1904 (basis of record)
Euborlasia elizabethae (McIntosh, 1873-1874) (basis of record)
Hoplonemertea (basis of record)
Hoplonemertini represented as Hoplonemertea (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 McIntosh, 1874 (basis of record)
Lineus Sowerby, 1805 (basis of record)
Lineus acutifrons Southern, 1913 accepted as Junoya acutifrons (Southern, 1913) (basis of record)
Lineus bilineatus (Renier, 1804) accepted as Siphonenteron bilineatum Renier in Menighini, 1847 (basis of record)
Lineus coccinus Bürger, 1892 (basis of record)
Lineus grubei (Hubrecht, 1879) accepted as Bilucernus grubei (Hubrecht, 1879) (additional source)
Lineus longissimus (Gunnerus, 1770) (basis of record)
Malacobdella grossa (Müller, 1776) (additional source)
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)
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 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, 1936 (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)
Prosorhochmus claparedii Keferstein, 1862 (additional source)
Protubulanus theeli (Bergendal, 1902) (basis of record)
Psammamphiporus elongatus (Stephenson, 1911) accepted as Tetrastemma elongatum (Stephenson, 1911) (basis of record)
Punnettia Stiasny-Wijnhoff, 1926 (basis of record)
Punnettia splendida (Keferstein, 1862) (basis of record)
Reptantia (basis of record)
Riseriellus Rogers, Junoy, Gibson & Thorpe, 1993 (basis of record)
Riseriellus occultus Rogers, Junoy, Gibson & Thorpe, 1993 (basis of record)
Tetrastemma ambiguum Riches, 1893 (basis of record)
Tetrastemma angulatus Senz, 1993 (basis of record)
Tetrastemma beaumonti (Southern, 1913) (basis of record)
Tetrastemma coronatum (Quatrefages, 1846) (basis of record)
Tetrastemma flavidum Ehrenberg, 1828 (basis of record)
Tetrastemma fozensis Gibson & Junoy, 1991 accepted as Tetrastemma fozense Gibson & Junoy, 1991 (basis of record)
Tetrastemma herouardi (Oxner, 1908) (basis of record)
Tetrastemma kirsteueri Senz, 1995 (basis of record)
Tetrastemma longissimum Bürger, 1895 (basis of record)
Tetrastemma melanocephalum (Johnston, 1837) (basis of record)
Tetrastemma quatrefagesi (Bürger, 1904) (basis of record)
Tetrastemma robertianae McIntosh, 1874 (basis of record)
Tetrastemma vermiculus (Quatrefages, 1846) (basis of record)