• Balanocephalus pellucidus accepted as Baseodiscus pellucidus (Kennel, 1891)
• Baseodiscus abyssorum (Joubin, 1902)
• Baseodiscus alpha (Joubin, 1902)
• Baseodiscus anocellatus Korotkevich, 1978
• Baseodiscus antarcticus Baylis, 1915
• Baseodiscus antillensis (Bürger, 1895)
• Baseodiscus aureus (Bürger, 1896)
• Baseodiscus australis (Hubrecht, 1887)
• Baseodiscus bilineatus (Schmarda, 1859)
• Baseodiscus caeca accepted as Polia caeca Chapuis, 1886
• Baseodiscus cingulatus (Coe, 1906)
• Baseodiscus curtus (Hubrecht, 1879)
• Baseodiscus delineatus (Delle Chiaje, 1825)
• Baseodiscus discolor (Coe, 1901)
• Baseodiscus edmondsoni Coe, 1934
• Baseodiscus filholi (Joubin, 1902)
• Baseodiscus giardii (Hubrecht, 1887)
• Baseodiscus hemprichii (Ehrenberg, 1831)
• Baseodiscus indicus (Punnett, 1903)
• Baseodiscus insignis accepted as Baseodiscus delineatus (Delle Chiaje, 1825)
• Baseodiscus jonasii Strand, Hjelmgren & Sundberg, 2005
• Baseodiscus lineolatus (Bürger, 1895)
• Baseodiscus longissimus Punnett & Cooper, 1909
• Baseodiscus lumbricoides (von Graff, 1899)
• Baseodiscus maculosus (Bürger, 1895)
• Baseodiscus mediolineatus 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 nipponensis (Hubrecht, 1887)
• Baseodiscus ophiocephalus accepted as Emplectonema ophiocephala (Schmarda, 1859)
• Baseodiscus pallidus (Isler, 1900)
• Baseodiscus pellucidus (Kennel, 1891)
• Baseodiscus pholidotus (Punnett, 1900)
• Baseodiscus platei (Bürger, 1896)
• Baseodiscus princeps (Coe, 1901)
• Baseodiscus punnetti (Coe, 1904)
• Baseodiscus quinquelineatus (Quoy & Gaimard, 1833)
• Baseodiscus rugosus (Punnett, 1900)
• Baseodiscus septemlineatus (Stimpson, 1857)
• 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 xantophila accepted as Carcinonemertes carcinophila (Kölliker, 1845)
• Basiodiscus anocellatus accepted as Baseodiscus anocellatus Korotkevich, 1978
• Basiodiscus unistriatus accepted as Baseodiscus unistriatus (Isler, 1900)
• Borlasia alba accepted as Amphiporus lacteiflorus accepted as Amphiporus lactifloreus (Johnston, 1828)
• Borlasia alileuti accepted as Cerebratulus marginatus Renier, 1804
• Borlasia angliae accepted as Lineus longissimus (Gunnerus, 1770)
• Borlasia annellata accepted as Cerebratulus annellatus (Leuckart, 1849)
• Borlasia annulata (Ehrenberg, 1831)
• Borlasia bilineata accepted as Baseodiscus bilineatus (Schmarda, 1859)
• Borlasia camillea accepted as Emplectonema neesii (Ørsted, 1843)
• Borlasia carmellina accepted as Baseodiscus delineatus (Delle Chiaje, 1825)
• Borlasia cephalothrix accepted as Cephalothrix linearis (Rathke, 1799)
• Borlasia echinoderma accepted as Emplectonema echinoderma (Marion, 1873)
• Borlasia elizabethae accepted as Euborlasia elizabethae (McIntosh, 1874)
• Borlasia filiformis accepted as Procephalothrix filiformis (Johnston, 1828)
• Borlasia flaccida sensu Johnston (1846)
• Borlasia gesserensis
• Borlasia groenlandica accepted as Amphiporus groenlandicus Ørsted, 1843
• Borlasia hemprichii accepted as Baseodiscus hemprichii (Ehrenberg, 1831)
• Borlasia hermaphroditica accepted as Tetrastemma hermaphroditica (Keferstein, 1868)
• Borlasia incompta Ehlers, 1871
• Borlasia inmaculata accepted as Euborlasia inmaculata (Bürger, 1892)
• Borlasia kefersteinii accepted as Tetrastemma kefersteinii (Marion, 1869)
• Borlasia kurtzii Girard, 1853
• Borlasia lactea accepted as Ramphogordius lacteus Rathke, 1843
• Borlasia linearis accepted as Cephalothrix linearis (Rathke, 1799)
• Borlasia longa accepted as Cephalothrix linearis (Rathke, 1799)
• Borlasia longissimus accepted as Lineus longissimus (Gunnerus, 1770)
• Borlasia mandilla accepted as Amphiporus lacteiflorus accepted as Amphiporus lactifloreus (Johnston, 1828)
• Borlasia maslovskyi accepted as Zygonemertes maslovskyi (Czerniavski, 1880)
• Borlasia melanocephala accepted as Tetrastemma melanocephalum (Johnston, 1837)
• Borlasia nigra accepted as Lineus longissimus (Gunnerus, 1770)
• Borlasia nigrofusca accepted as Nemertes nigrofuscus Ehrenberg, 1831
• Borlasia novae-zelandiae accepted as Amphiporus novaezelandiae (Quoy & Gaimard, 1833)
• Borlasia octoculata
• Borlasia olivacea accepted as Lineus viridis (O.F. Müller, 1774)
• Borlasia purpurea
• Borlasia quadripunctata accepted as Nemertopsis quadripunctata (Quoy & Gaimard, 1833)
• Borlasia quinquelineata accepted as Baseodiscus quinquelineatus (Quoy & Gaimard, 1833)
• Borlasia quinquelineatus Quoy & Gaimard, 1833
• Borlasia rufa accepted as Lineus ruber (Müller, 1774)
• Borlasia rufifrons accepted as Cephalothrix rufifrons (Johnston, 1837)
• Borlasia sanguinea accepted as Amphiporus sanguineus Girard, 1853
• Borlasia splendida accepted as Punnettia splendida (Keferstein, 1862)
• Borlasia striata
• Borlasia tricuspida accepted as Notospermus tricuspidatus (Quoy & Gaimard, 1833)
• Borlasia tricuspidata accepted as Notospermus tricuspidatus (Quoy & Gaimard, 1833)
• Borlasia tricuspidatus Quoy & Gaimard, 1833
• Borlasia trilineata accepted as Lineopsella trilineata (Schmarda, 1859)
• Borlasia vermiculus accepted as Tetrastemma vermiculus (Quatrefages, 1846)
• Borlasia viridis Grube, 1840
• Borlasia vittata Quoy & Gaimard, 1833 accepted as Lineus vittatus (Quoy & Gaimard, 1833)
• Borlasia vivipara accepted as Prosorhochmus viviparus (Ulyanin, 1870)