• Albanemertes rovinjensis Senz, 1993
• Annulonemertes minusculus Berg, 1985
• Atrionemertes greenlandica Senz, 1993
• Campbellonemertes johnsi Moore & Gibson, 1972
• Cyanonemertes elegans Iwata, 2007
• Fasciculonemertes arenicola Sánchez & Cancino, 1980
• Fasiculonemertes arenicola accepted as Fasciculonemertes arenicola Sánchez & Cancino, 1980
• Friedrichia corallicola Kirsteuer, 1965
• Friedrichia leopardina Chernyshev, 1993
• Frontonemertes serpentina Iwata, 2006
• Geonemertes agricola (Willemoes-Suhm, 1874) accepted as Pantinonemertes agricola (Willemoes-Suhm, 1874) accepted as Prosadenoporus agricola (Willemoes-Suhm, 1874)
• Geonemertes allisonae Moore, 1973 accepted as Antiponemertes allisonae (Moore, 1973)
• Geonemertes arboricola Punnett, 1907 accepted as Geonemertes pelaensis Semper, 1863
• Geonemertes australiensis Dendy, 1892
• Geonemertes caeca Darbishire, 1909
• Geonemertes chalicophora Graff, 1879 accepted as Leptonemertes chalicophora (Graff, 1879)
• Geonemertes clepsinoidea accepted as Prostoma clepsinoides (Dugès, 1828) accepted as Prostoma puteale (Dugès, 1828)
• Geonemertes dendyi Dakin, 1915
• Geonemertes graffi Bürger, 1896
• Geonemertes hilli Hett, 1924
• Geonemertes hillii Hett, 1924
• Geonemertes micholitzi Bürger, 1896 accepted as Geonemertes graffi Bürger, 1896
• Geonemertes nightingaleensis Brinkmann, 1943 accepted as Katechonemertes nightingaleensis (Brinkmann, 1943)
• Geonemertes novae-zealandiae Dendy, 1895 accepted as Antiponemertes novaezealandiae (Dendy, 1895)
• Geonemertes pantini Southgate, 1954 accepted as Antiponemertes pantini (Southgate, 1954)
• Geonemertes pelaensis Semper, 1863
• Geonemertes peradeniya Pantin, 1961
• Geonemertes philippinensis Gibson & Moore, 1998
• Geonemertes rodericana (Gulliver, 1879)
• Geonemertes spirospermia Darbishire, 1909
• Geonemertes stamarai Moore in Pantin, 1969
• Geonemertes stocki Moore, 1975
• Geonemertes vinsoni Moore in Pantin, 1969 accepted as Geonemertes pelaensis Semper, 1863
• Koinoporus mapochi Sánchez & Moretto, 1988
• Limnemertes poyangensis Gibson & Wang, 2002
• Oerstdia dorsalis accepted as Oerstedia dorsalis (Abildgaard, 1806)
• Oerstedia armata accepted as Tetrastemma quatrefagesi (Bürger, 1904)
• Oerstedia armatum accepted as Tetrastemma quatrefagesi (Bürger, 1904)
• Oerstedia aurantiaca accepted as Ototyphlonemertes aurantiaca (du Plessis, 1891)
• Oerstedia baculus accepted as Tetrastemma baculus (Quatrefages, 1846)
• Oerstedia cassidens accepted as Tetrastemma cassidens (Fischer & Marenzeller, 1886)
• Oerstedia claparedei accepted as Ototyphlonemertes claparedii (du Plessis, 1891)
• Oerstedia claparedii accepted as Ototyphlonemertes claparedii (du Plessis, 1891)
• Oerstedia crassus (Senz, 1993)
• Oerstedia dorsalis (Abildgaard, 1806)
• Oerstedia esbenseni (Wheeler, 1934)
• Oerstedia gulliveri (Bürger, 1893)
• Oerstedia immutabilis (Riches, 1893)
• Oerstedia laminariae Friedrich, 1936
• Oerstedia maculata sensu Quatrefages, 1846
• Oerstedia maculata sensu Wheeler, 1934 accepted as Oerstedia wheeleri Chernyshev, 1992
• Oerstedia nigra (Riches, 1893)
• Oerstedia nigrimaculata (Gibson, 1988)
• Oerstedia oculata (Kulikova, 1987)
• Oerstedia pallida
• Oerstedia patriciae Oxner, 1907
• Oerstedia phoresiae (Kulikova, 1987)
• Oerstedia polyorbis Iwata, 1954
• Oerstedia puchella accepted as Tetrastemma melanocephalum (Johnston, 1837)
• Oerstedia roscoviensis Oxner, 1907
• Oerstedia russica accepted as Oerstedia rustica (Joubin, 1890)
• Oerstedia rustica (Joubin, 1890)
• Oerstedia similiformis (Friedrich, 1935)
• Oerstedia striata Sundberg, 1988
• Oerstedia tenuicollis (Kirsteuer, 1963)
• Oerstedia tubicola Quartrefages, 1846 accepted as Oerstedia dorsalis (Abildgaard, 1806)
• Oerstedia unicolor accepted as Tetrastemma unicolor (Hubrecht, 1879)
• Oerstedia valentinae (Chernyshev, 1993)
• Oerstedia venusta Iwata, 1954
• Oerstedia verae (Chernyshev, 1993)
• Oerstedia vittata accepted as Tetrastemma vittigerum (Bürger, 1904)
• Oerstedia wheeleri Chernyshev, 1992
• Oerstedia wijnhoffae Friedrich, 1935
• Oerstedia wijnhoffi accepted as Oerstedia wijnhoffae Friedrich, 1935
• Oerstedia zebra (Chernyshev, 1993)
• Oertedia vittata accepted as Typhloerstedia anadonae Chernyshev, 1999
• Potamostoma shizunaiense Kajihara, Gibson & Mawatari, 2003
• Prostoma albolineatum accepted as Tetrastemma albolineatum (Timofeeva, 1912)
• Prostoma ambigua accepted as Tetrastemma ambiguum Riches, 1893
• Prostoma ambiguum accepted as Tetrastemma ambiguum Riches, 1893
• Prostoma amphiporoides accepted as Tetrastemma amphiporoides Bürger, 1893
• Prostoma antarcticum accepted as Tetrastemma antarcticum Bürger, 1893
• Prostoma armata accepted as Emplectonema echinoderma (Marion, 1873)
• Prostoma armatum sensu Dugès, 1830
• Prostoma aseptata accepted as Tetrastemma aseptata (Friedrich, 1935)
• Prostoma assimile accepted as Tetrastemma assimile Örsted, 1844
• Prostoma baculus accepted as Tetrastemma baculus (Quatrefages, 1846)
• Prostoma beaumonti accepted as Tetrastemma beaumonti (Southern, 1913)
• Prostoma biancestro accepted as Tetrastemma candidum (Müller, 1774)
• Prostoma bioculatum accepted as Tetrastemma bioculatum Örsted, 1843
• Prostoma bipeltatum accepted as Tetrastemma bipeltatum (Timofeeva, 1912)
• Prostoma bistriatum accepted as Tetrastemma bistriatum (Timofeeva, 1912)
• Prostoma brunnea accepted as Tetrastemma brunnea (Friedrich, 1935)
• Prostoma buxeum accepted as Tetrastemma buxeum Bürger, 1895
• Prostoma canadiensis Gibson & Moore, 1978
• Prostoma candidum accepted as Tetrastemma candidum (Müller, 1774)
• Prostoma cassidens accepted as Tetrastemma cassidens (Fischer & Marenzeller, 1886)
• Prostoma cephalophorum accepted as Tetrastemma cephalophorum Bürger, 1895
• Prostoma cerasinum accepted as Tetrastemma cerasinum Bürger, 1895
• Prostoma cisalpinum Vialli, 1926