Acteonemertes Pantin, 1961 (status source)
Amniclineus Gibson & Qi, 1991 (basis of record)
Amniclineusa Dawson, 1993 accepted as Amniclineus Gibson & Qi, 1991 (basis of record)
Amphiporella Friedrich, 1939 accepted as Germanemertes Kajihara, 2021 (status source)
Amphiporella baltica Friedrich, 1939 accepted as Germanemertes baltica (Friedrich, 1939) (status source)
Amphiporus (Intestinonemertes) appendiculatus Friedrich, 1957 accepted as Amphiporus appendiculatus Friedrich, 1957 (source of synonymy)
Amphiporus (Intestinonemertes) arcticus (Punnett, 1901) accepted as Amphiporus arcticus Punnett, 1901 (source of synonymy)
Amphiporus (Intestinonemertes) islandicus Friedrich, 1957 accepted as Amphiporus islandicus Friedrich, 1957 (source of synonymy)
Amphiporus (Intestinonemertes) iwatai Friedrich, 1970 accepted as Amphiporus iwatai Friedrich, 1970 (source of synonymy)
Amphiporus (Intestinonemertes) punnetti Friedrich, 1957 accepted as Amphiporus punnetti (Friedrich, 1957) (source of synonymy)
Amphiporus (Intestinonemertes) septentrionalis Friedrich, 1957 accepted as Amphiporus septentrionalis Friedrich, 1957 (source of synonymy)
Amphiporus albicans Ehrenberg, 1831 (basis of record)
Amphiporus algensis Bürger, 1895 accepted as Zygonemertes algensis (Bürger, 1895) (basis of record)
Amphiporus appendiculatus Friedrich, 1957 (status source)
Amphiporus arcticus Punnett, 1901 (status source)
Amphiporus arenarius Ushakov, 1927 accepted as Nipponnemertes arenaria (Ushakov, 1927) (basis of record)
Amphiporus carinelloides Bürger, 1895 (basis of record)
Amphiporus commensalus Kyao, 1954 accepted as Asteronemertes commensalis (Kyao, 1954) (basis of record)
Amphiporus dubius Hubrecht, 1879 (basis of record)
Amphiporus fabricii Levinsen, 1879 (basis of record)
Amphiporus flavens Monastero, 1930 (basis of record)
Amphiporus giardinae Monastero, 1930 (basis of record)
Amphiporus groenlandicus Örsted, 1843 (basis of record)
Amphiporus hastatus McIntosh, 1874 (basis of record)
Amphiporus islandicus Friedrich, 1957 (status source)
Amphiporus iwatai Friedrich, 1970 (status source)
Amphiporus julii Giard, 1890 (basis of record)
Amphiporus langiaegeminus Bürger, 1895 (basis of record)
Amphiporus maculatus Joubin, 1890 accepted as Amphiporus marmoratus Hubrecht, 1879 (basis of record)
Amphiporus magnus Punnett, 1903 accepted as Nipponnemertes magna (Punnett, 1903) (basis of record)
Amphiporus marmoratus Hubrecht, 1879 (basis of record)
Amphiporus martyi Oxner, 1907 (basis of record)
Amphiporus matuanus Korotkevich, 1977 (status source)
Amphiporus murmanicum Ushakov, 1928 (basis of record)
Amphiporus nagaiensis Iwata, 1957 accepted as Sagaminemertes nagaiensis (Iwata, 1957) (basis of record)
Amphiporus neesii Örsted, 1843 accepted as Neesia neesii (Örsted, 1843) (basis of record)
Amphiporus nigrostriatus Timofeev, 1911 (status source)
Amphiporus occidentalis Coe, 1905 accepted as Nipponnemertes occidentalis (Coe, 1905) (basis of record)
Amphiporus oligommatus Bürger, 1895 (basis of record)
Amphiporus pacificus Coe, 1905 accepted as Nipponnemertes pacifica (Coe, 1905) (basis of record)
Amphiporus parmiornatus Iwata, 1957 accepted as Kameginemertes parmiornata (Iwata, 1957) (basis of record)
Amphiporus polyommatus Bürger, 1895 (basis of record)
Amphiporus pugnax Hubrecht, 1879 (basis of record)
Amphiporus punctatulus Coe, 1905 accepted as Nipponnemertes punctatula (Coe, 1905) (basis of record)
Amphiporus punnetti (Friedrich, 1957) (status source)
Amphiporus reticulatus Bürger, 1895 (basis of record)
Amphiporus rufostriatus Bergendal, 1903 (basis of record)
Amphiporus sanguineus Girard, 1853 (basis of record)
Amphiporus schollaerti Wheeler, 1934 accepted as Nipponnemertes schollaerti (Wheeler, 1934) (basis of record)
Amphiporus scoresbyi Wheeler, 1934 accepted as Achoronemertes scoresbyi (Wheeler, 1934) (basis of record)
Amphiporus septentrionalis Friedrich, 1957 (status source)
Amphiporus sipunculus Saint-Loup, 1886 (basis of record)
Amphiporus spectabilis (Quatrefages, 1846) (taxonomy source)
Amphiporus stanniusi Bürger, 1895 accepted as Valdivianemertes stannii (Grube, 1840) accepted as Akrostomum stannii Grube, 1840 (basis of record)
Amphiporus stimpsonii (Girard in Stimpson, 1854) (basis of record)
Amphiporus thompsoni Punnett, 1901 (basis of record)
Amphiporus validissimus Bürger, 1895 (basis of record)
Amphiporus virescens Verrill, 1879 accepted as Zygonemertes virescens (Verrill, 1879) (basis of record)
Amphiporus virgatus Bürger, 1895 (basis of record)
Amphiporus vitae Monastero, 1930 (basis of record)
Amphiporus vittatus (Hubrecht, 1879) accepted as Tetrastemma vittigerum (Bürger, 1904) (additional source)
Antarctonemertes (Kurilonemertes) Chernyshev, 1993 accepted as Kurilonemertes Chernyshev, 1993 (status source)
Antiponemertes Moore & Gibson, 1981 (status source)
Apatronemertes Wilfert & Gibson, 1974 (basis of record)
Apatronemertes albimaculosa Wilfert & Gibson, 1974 (basis of record)
Argonemertes Moore & Gibson, 1981 (status source)
Ascaris longissima Gunnerus, 1770 accepted as Lineus longissimus (Gunnerus, 1770) (basis of record)
Astemma collaris Girard, 1893 accepted as Amphiporus caecus Verrill, 1892 (basis of record)
Astemma gordius Parfitt, 1867 accepted as Oerstedia dorsalis (Abildgaard, 1806) (basis of record)
Astemma longum Örsted, 1843 accepted as Cephalothrix linearis (Rathke, 1799) (basis of record)
Astemma resplendens Girard, 1893 accepted as Amphiporus caecus Verrill, 1892 (basis of record)
Avenardia priei Giard, 1878 accepted as Cerebratulus marginatus [Renier], [1804] (basis of record)
Balaenanemertes chuni Bürger, 1909 (basis of record)
Balaenanemertes grandis Brinkmann, 1917 (basis of record)
Balaenanemertes hjorti Brinkmann, 1917 (basis of record)
Balaenanemertes lata Brinkmann, 1917 (basis of record)
Balaenanemertes minor Coe, 1936 (basis of record)
Balaenanemertes musculocaudata Brinkmann, 1917 (basis of record)
Balanocephalus pellucidus Kennel, 1891 accepted as Baseodiscus pellucidus (Kennel, 1891) (basis of record)
Baseodiscus anocellatus Korotkevich, 1978 (basis of record)
Baseodiscus takakurai Gibson, 1995 (original description)
Borlasia alileuti Anadon, 1981 accepted as Cerebratulus marginatus [Renier], [1804] (basis of record)
Borlasia angliae Oken, 1815 accepted as Lineus longissimus (Gunnerus, 1770) (basis of record)
Borlasia bilineata Schmarda, 1859 accepted as Baseodiscus bilineatus (Schmarda, 1859) (basis of record)
Borlasia camillea Quatrefages, 1846 accepted as Emplectonema neesii (Örsted, 1843) accepted as Neesia neesii (Örsted, 1843) (basis of record)
Borlasia carmellina Quatrefages, 1846 accepted as Baseodiscus delineatus (Delle Chiaje, 1822) (basis of record)
Borlasia cephalothrix Diesing, 1850 accepted as Cephalothrix linearis (Rathke, 1799) (basis of record)
Borlasia echinoderma Marion, 1873 accepted as Emplectonema echinoderma (Marion, 1873) (basis of record)
Borlasia hermaphroditica Keferstein, 1868 accepted as Tetrastemma hermaphroditica (Keferstein, 1868) accepted as Tetrastemma hermaphroditicum (Keferstein, 1868) (basis of record)
Borlasia inmaculata Bürger, 1892 accepted as Euborlasia inmaculata (Bürger, 1892) (basis of record)
Borlasia kefersteinii Marion, 1869 accepted as Tetrastemma kefersteinii (Marion, 1869) (basis of record)
Borlasia maslovskyi Czerniavsky, 1880 accepted as Zygonemertes maslovskyi (Czerniavsky, 1880) (basis of record)
Borlasia nigra Byerley, 1854 accepted as Lineus longissimus (Gunnerus, 1770) (basis of record)
Borlasia novae-zelandiae Quoy & Gaimard, 1833 accepted as Amphiporus novaezelandiae (Quoy & Gaimard, 1833) (basis of record)
Borlasia quadripunctata Quoy & Gaimard, 1833 accepted as Nemertopsis quadripunctata (Quoy & Gaimard, 1833) (basis of record)
Borlasia quinquelineata Quoy & Gaimard, 1833 accepted as Baseodiscus quinquelineatus (Quoy & Gaimard, 1833) (basis of record)
Borlasia rufa Rathke, 1843 accepted as Lineus ruber (Müller, 1774) (basis of record)
Borlasia splendida Keferstein, 1862 accepted as Punnettia splendida (Keferstein, 1862) (basis of record)
Borlasia striata Quoy & Gaimard, 1833 accepted as Baseodiscus delineatus (Delle Chiaje, 1822) (basis of record)
Borlasia tricuspidata Quoy & Gaimard, 1833 accepted as Notospermus tricuspidatus (Quoy & Gaimard, 1833) (basis of record)

 Status

 for Cosmocephala matuana (Korotkevich, 1977)

Considered species inquirenda by Gibson (1995) [details]

 Synonymy

 for Drepanophorus spectabilis (Quatrefages, 1846)

Gibson (1995) does not accept Bürger's (1904) synonymy with Planaria bad. [details]

 Synonymy

 for Gordius oculatus Montagu, 1808

Gordius oculatus (partim) probably = Lineus sanguineus (Rathke, 1799) , but could also refer to Lineus ruber or ... [details]

 Synonymy

 for Meckelia Leuckart, 1828

Meckelia synonymized with genera in Palaeo-, Hoplo- and Heteronemertea. [details]

 Synonymy

 for Polia Delle Chiaje, 1822

Polia synonymized with genera in Palaeo-, Hoplo- and Heteronemertea. [details]

 Taxonomic remark

 for Gordius gesserensis (Müller, 1780)

Could refer to Lineus ruber (Müller, 1774) or Lineus viridis (Müller, 1774) or to both. [details]

 Taxonomic remark

 for Gordius oculatus Montagu, 1808

Gordius oculatus (partim) probably = Lineus sanguineus (Rathke, 1799) , but could also refer to Lineus ruber or ... [details]

 Taxonomic remark

 for Oerstedia pallida Keferstein, 1862

Gibson (1995) states that Oerstedia pallida Kef. sensu du Plessis is Ototyphlonemertes claparedii, not Oerstedia ... [details]

 Taxonomic remark

 for 

Gibson (1995) lists and incorrectly attributes Norenburgia macintoshi to Chernyshev (1993), who created no such ... [details]

 Taxonomic remark

 for Ototyphlonemertes brevis (Corrêa, 1948)

Gibson (1995) lists and incorrectly attributes Norenburgia brevis to Chernyshev (1993), who created no such taxon ... [details]

 Taxonomic remark

 for Ototyphlonemertes lactea (Corrêa, 1954)

Gibson (1995) lists and incorrectly attributes Norenburgia lactea to Chernyshev (1993), who created no such taxon ... [details]

 Taxonomy

 for Hirudo Linnaeus, 1758

A currently valid genus of leeches, the generic name was used by a number of the earlier authors for species of ... [details]

 Type designation

 for Nemertellina Friedrich, 1935

Friedrich (1935 "Study of Morphology, Systematics and Ecology of Nemertellina from the Kieler Book") originally ... [details]

 Validity

 for Lineus viridis Saint-Loup, 1886

Saint-Loup, apart from referring to the size and colour of this form, which helisted as new, merely noted that it ... [details]