• Adenorhagas aurantiafrons Riser, 1990
• Aetheolineus pulcherrimus Senz, 1993
• Aetheorhynchus actites Gibson, 1981
• Alardus caudatus Busch, 1851 accepted as Micrura fasciolata Ehrenberg, 1828
• Ammolineus gaimardi Senz, 2001
• Amniclineus zhujiangensis Gibson & Qi, 1991
• Amorphonemertes kubergensis Cantell, 1998
• Antarctolineus scotti (Baylis, 1915)
• Apatronemertes albimaculosa Wilfert & Gibson, 1974
• Apatronemertes albovitatus Wilfert & Gibson, 1974 accepted as Apatronemertes albimaculosa Wilfert & Gibson, 1974
• Archimicrura ignea (Schwartz & Norenburg, 2005)
• Australineus albidecus Gibson, 1990
• Avenardia alileuti Giard, 1878 accepted as Cerebratulus marginatus [Renier], [1804]
• Avenardia priei Giard, 1878 accepted as Cerebratulus marginatus [Renier], [1804]
• Balanocephalus pellucidus Kennel, 1891 accepted as Baseodiscus pellucidus (Kennel, 1891)
• Baseodiscus abyssorum (Joubin, 1902)
• Baseodiscus alpha (Joubin, 1902)
• Baseodiscus amboinensis (Staub, 1900)
• Baseodiscus anocellatus Korotkevich, 1978 (unaccepted > nomen nudum)
• Baseodiscus antarcticus Baylis, 1915
• Baseodiscus antillensis (Bürger, 1895)
• Baseodiscus argentinus Alfaya, Chernyshev, Lozada & Bigatti, 2025
• Baseodiscus aureus (Bürger, 1896)
• Baseodiscus australis (Hubrecht, 1887)
• Baseodiscus bilineatus (Schmarda, 1859)
• Baseodiscus caeca (Chapuis, 1886) accepted as Polia caeca Chapuis, 1886
• Baseodiscus cingulatus (Coe, 1906)
• Baseodiscus curtus (Hubrecht, 1879) accepted as Baseodiscus delineatus (Delle Chiaje, 1822)
• Baseodiscus delineatus (Delle Chiaje, 1822)
• Baseodiscus delineatus var. curta accepted as Baseodiscus delineatus (Delle Chiaje, 1822)
• Baseodiscus delineatus var. curtus accepted as Baseodiscus delineatus (Delle Chiaje, 1822)
• Baseodiscus discolor (Coe, 1901)
• Baseodiscus edmondsoni Coe, 1934
• Baseodiscus filholi (Joubin, 1902)
• Baseodiscus giardii (Hubrecht, 1887)
• Baseodiscus giribeti Kajihara, Abukawa & Chernyshev, 2022
• Baseodiscus hemprichii (Ehrenberg, 1831)
• Baseodiscus indicus (Punnett, 1903)
• Baseodiscus insignis Punnett & Cooper, 1909 accepted as Baseodiscus delineatus (Delle Chiaje, 1822)
• Baseodiscus jonasii Strand, Hjelmgren & Sundberg, 2005
• Baseodiscus kakuii Kajihara, Abukawa & Chernyshev, 2022
• Baseodiscus komatsui Kajihara, Abukawa & Chernyshev, 2022
• Baseodiscus lineolatus (Bürger, 1895) accepted as Baseodiscus quinquelineatus (Quoy & Gaimard, 1833)
• Baseodiscus longissimus Punnett & Cooper, 1909
• Baseodiscus lumbricoides (von Graff, 1899)
• Baseodiscus maculosus (Bürger, 1895)
• Baseodiscus marmoratus (Bürger, 1890)
• Baseodiscus mediolineatus Bürger, 1893 accepted as Baseodiscus hemprichii (Ehrenberg, 1831)
• Baseodiscus mexicanum accepted as Baseodiscus mexicanus (Bürger, 1893)
• Baseodiscus mexicanus (Bürger, 1893)
• Baseodiscus minor (Hubrecht, 1879)
• Baseodiscus multiporatus (Punnett, 1900)
• Baseodiscus narusei Kajihara, Abukawa & Chernyshev, 2022
• Baseodiscus nipponensis (Hubrecht, 1887)
• Baseodiscus nipponicus Kajihara, 2017 accepted as Baseodiscus nipponensis (Hubrecht, 1887)
• Baseodiscus ohtsukai Kajihara, Abukawa & Chernyshev, 2022
• Baseodiscus ophiocephalus ? accepted as Emplectonema ophiocephala (Schmarda, 1859)
• Baseodiscus pallidus (Isler, 1900)
• Baseodiscus paracelensis Kajihara, Abukawa & Chernyshev, 2022
• Baseodiscus pellucidus (Kennel, 1891)
• Baseodiscus pholidotus (Punnett, 1900)
• Baseodiscus platei (Bürger, 1896)
• Baseodiscus princeps (Coe, 1901)
• Baseodiscus profundus Kajihara, Abukawa & Chernyshev, 2022
• Baseodiscus punnetti (Coe, 1904)
• Baseodiscus quinquelineatus (Quoy & Gaimard, 1833)
• Baseodiscus rugosus (Punnett, 1900)
• Baseodiscus septemlineatus (Stimpson, 1857) accepted as Baseodiscus quinquelineatus (Quoy & Gaimard, 1833)
• Baseodiscus sordidus Punnett & Cooper, 1909
• Baseodiscus sulcatus (Isler, 1900)
• Baseodiscus takakurai Gibson, 1995
• Baseodiscus unicolor Stiasny-Wijnhoff, 1925
• Baseodiscus unistriatus (Isler, 1900)
• Baseodiscus univittatus (Coe, 1906)
• Baseodiscus urgorrii Kajihara, Abukawa & Chernyshev, 2022
• Baseodiscus xanthophila (Giard, 1888) accepted as Carcinonemertes carcinophila (Kölliker, 1845)
• Baseodiscus zebra Kajihara, Abukawa & Chernyshev, 2022
• Basiodiscus unistriatus accepted as Baseodiscus unistriatus (Isler, 1900)
• Bennettia insularis Gibson, 1981 accepted as Bennettiella insularis (Gibson, 1981)
• Bennettiella insularis (Gibson, 1981)
• Bilucernus caputornatus (Takakura, 1898)
• Bilucernus grubei (Hubrecht, 1879)
• Bilucernus pictifrons (Coe, 1904)
• Bilucernus subcingulatus (Takakura, 1898)
• Bilucernus takakurai Ikenaga, Maslakova, Yoshida & Kajihara, 2025
• Borlasia alba Thompson, 1845 accepted as Amphiporus lactifloreus (Johnston, 1828)
• Borlasia alileuti Anadon, 1981 accepted as Cerebratulus marginatus [Renier], [1804]
• Borlasia angliae Oken, 1815 accepted as Lineus longissimus (Gunnerus, 1770)
• Borlasia annellata accepted as Cerebratulus annellatus (Leuckart, 1849)
• Borlasia annulata (Ehrenberg, 1831) accepted as Notospermus geniculatus (Delle Chiaje, 1822)
• Borlasia bilineata Schmarda, 1859 accepted as Baseodiscus bilineatus (Schmarda, 1859)
• Borlasia caerulescens (Delle Chiaje, 1822) (uncertain > nomen dubium)
• Borlasia camillea Quatrefages, 1846 accepted as Emplectonema neesii (Örsted, 1843) accepted as Neesia neesii (Örsted, 1843)
• Borlasia carmellina Quatrefages, 1846 accepted as Baseodiscus delineatus (Delle Chiaje, 1822)
• Borlasia cephalothrix Diesing, 1850 accepted as Cephalothrix linearis (Rathke, 1799)
• Borlasia dröbachensis (Örsted, 1845) (uncertain > nomen dubium)
• Borlasia echinoderma Marion, 1873 accepted as Emplectonema echinoderma (Marion, 1873)
• Borlasia elizabethae McIntosh, 1873-1874 accepted as Euborlasia elizabethae (McIntosh, 1873-1874)
• Borlasia filiformis (Johnston, 1828) accepted as Procephalothrix filiformis (Johnston, 1828) accepted as Cephalothrix filiformis (Johnston, 1828)
• Borlasia flaccida sensu Johnston, 1846 accepted as Emplectonema neesii (Örsted, 1843) accepted as Neesia neesii (Örsted, 1843)