Laenilla glabra – synonym of Malmgrenia glabra
Laenilla glabra Malmgren, 1865 – synonym of Malmgrenia glabra
Laenilla mollis – synonym of Austrolaenilla mollis
Laenilla mollis M. Sars, 1872 – synonym of Austrolaenilla mollis
Laeonereis glauca – synonym of Websterinereis glauca
Laeonereis glauca Hartmann-Schröder, 1971 – synonym of Websterinereis glauca
Laetmatonice filicornis – synonym of Laetmonice filicornis
Laetmatonice filicornis McIntosh, 1900 – synonym of Laetmonice filicornis
Laetmatonice Kinbergi – synonym of Laetmonice filicornis
Laetmatonice Kinbergi Baird, 1865 – synonym of Laetmonice filicornis
Laetmonice filicornis Kinberg, 1855 – synonym of Laetmonice filicornis
Laetmonice filicornis var. Kinbergi – synonym of Laetmonice filicornis
Laetmonice filicornis var. Kinbergi Chumley, 1918 – synonym of Laetmonice filicornis
Laetmonice hystrix – synonym of Hermonia hystrix
Laetmonice hystrix Pettibone. 1966 – synonym of Hermonia hystrix
Lagis Koreni – synonym of Pectinaria koreni
Lagis Koreni Malmgren, 1866 – synonym of Pectinaria koreni
Lagisca elizabethae – synonym of Harmothoe impar
Lagisca elizabethae Southern, 1914 – synonym of Harmothoe impar
Lagisca extenuata – synonym of Harmothoe extenuata
Lagisca extenuata McIntosh, 1900 part – synonym of Harmothoe extenuata
Lagisca floccosa – synonym of Harmothoe extenuata
Lagisca floccosa McIntosh, 1900 part – synonym of Harmothoe extenuata
Lagisca jeffreysi – synonym of Harmothoe extenuata
Lagisca jeffreysi McIntosh, 1876 – synonym of Harmothoe extenuata
Lagisca jeffreysii – synonym of Malmgrenia mcintoshi
Lagisca jeffreysii McIntosh, 1900 non McIntosh, 1876 – synonym of Malmgrenia mcintoshi
Lagisca multisetosa – synonym of Harmothoe aspera
Lagisca multisetosa Moore, 1902 – synonym of Harmothoe aspera
Lanassa venusta Hessle, 1917 – synonym of Lanassa venusta
Lanice conchilega – synonym of Lanice conchilega
Lanice conchilega Hessle, 1917 – synonym of Lanice conchilega
Laonice bahusiensis Söderström, 1920 – synonym of Laonice bahusiensis
Laonice cirrata Söderström, 1920 – synonym of Laonice cirrata
Laonice sarsi Söderström, 1920 – synonym of Laonice sarsi
Laonome kroeyeri Malmgren, 1865 – synonym of Laonome kroeyeri
Laphaniella venusta – synonym of Lanassa venusta
Laphaniella venusta Malm, 1874 – synonym of Lanassa venusta
Leaena Graffii – synonym of Proclea graffii
Leaena Graffii Langerhans, 1884 – synonym of Proclea graffii
Leanira tetragona – synonym of Neoleanira tetragona
Leanira tetragona – synonym of Sthenelais limicola
Leanira tetragona Eliason, 1920 – synonym of Sthenelais limicola
Leanira tetragona Fauvel, 1923 – synonym of Neoleanira tetragona
Leanira tetragona Hartmann-Schröder, 1971 – synonym of Neoleanira tetragona
Leanira yhleni – synonym of Sthenelais limicola
Leanira yhleni Clark, 1960 – synonym of Sthenelais limicola
Leiochone borealis – synonym of Clymenura lankesteri
Leiochone borealis Arwidsson, 1906 – synonym of Clymenura lankesteri
Leontis dumerilii – synonym of Platynereis dumerilii
Leontis dumerilii Malm, 1874 – synonym of Platynereis dumerilii
Lepidonote assimilis – synonym of Gattyana cirrosa
Lepidonote assimilis Oested, 1843 – synonym of Gattyana cirrosa
Lepidonotus cirratus – synonym of Harmothoe imbricata
Lepidonotus cirratus Johnston, 1865 – synonym of Harmothoe imbricata
Lepidonotus cirratus var. parasiticus – synonym of Gattyana cirrosa
Lepidonotus cirratus var. parasiticus Baird, 1865 – synonym of Gattyana cirrosa
Lepidonotus clava McIntosh, 1900 – synonym of Lepidonotus clava
Lepidonotus impar – synonym of Harmothoe impar
Lepidonotus impar Johnston, 1865 – synonym of Harmothoe impar
Lepidonotus pharetratus – synonym of Eunoe nodosa
Lepidonotus pharetratus Johnston, 1865 – synonym of Eunoe nodosa
Lepidonotus semisculptus – synonym of Malmgrenia glabra
Lepidonotus semisculptus Leach in Johnston, 1865 – synonym of Malmgrenia glabra
Lepidonotus squamatus McIntosh, 1900 – synonym of Lepidonotus squamatus
Leptonereis glauca – synonym of Websterinereis glauca
Leptonereis glauca Fauvel, 1923 – synonym of Websterinereis glauca
Leucariste albicans – synonym of Polycirrus arcticus
Leucariste albicans Malmgren, 1866 – synonym of Polycirrus arcticus
Leucariste smittii – synonym of Polycirrus medusa
Leucariste smittii Michaelsen, 1896 – synonym of Polycirrus medusa
Leucia nivea Malmgren, 1867 – synonym of Leucia nivea
Leucodore caeca – synonym of Polydora caeca
Leucodore caeca Malm, 1874 – synonym of Polydora caeca
Leucodore ciliatus – synonym of Polydora ciliata
Leucodore ciliatus Johnston, 1838 – synonym of Polydora ciliata
Leucodore socialis – synonym of Polydora socialis
Leucodore socialis Schmarda, 1861 – synonym of Polydora socialis
Leucodorum caecum – synonym of Polydora caeca
Leucodorum caecum Oersted, 1843 – synonym of Polydora caeca
Levinsenia gracilis Hartley, 1981 – synonym of Levinsenia gracilis
Linotrypane apogon – synonym of Polygordius lacteus
Linotrypane apogon McIntosh, 1873 – synonym of Polygordius lacteus
Lipephile cultrifera – synonym of Perinereis cultrifera
Lipephile cultrifera Saint-Joseph, 1888 – synonym of Perinereis cultrifera
Lipobranchus intermedius – synonym of Asclerocheilus intermedius
Lipobranchus intermedius Saint-Joseph, 1894 – synonym of Asclerocheilus intermedius
Lipobranchus jeffreysii Fauvel, 1927 – synonym of Lipobranchus jeffreysii
Lumbriclymene cylindicauda – synonym of Praxillura longissima
Lumbriclymene cylindicauda Tauber, 1879 part – synonym of Praxillura longissima
Lumbriclymene cylindricauda Sars, 1872 – synonym of Lumbriclymene cylindricauda
Lumbriclymene cylindricaudata – synonym of Lumbriclymene cylindricauda
Lumbriclymene minor Arwidsson, 1906 – synonym of Lumbriclymene minor
Lumbriconereis borealis – synonym of Lumbrineris fragilis
Lumbriconereis borealis Kinberg, 1865 – synonym of Lumbrineris fragilis
Lumbriconereis filum – synonym of Drilonereis filum
Lumbriconereis filum Claparède, 1868 – synonym of Drilonereis filum
Lumbriconereis fragilis – synonym of Lumbrineris fragilis
Lumbriconereis fragilis McIntosh, 1910 – synonym of Lumbrineris fragilis
Lumbriconereis futilis – synonym of Lumbrineris latreilli
Lumbriconereis futilis Michaelsen, 1897 – synonym of Lumbrineris latreilli
Lumbriconereis gracilis – synonym of Lumbrineris gracilis
Lumbriconereis gracilis Ehlers, 1868 – synonym of Lumbrineris gracilis
Lumbriconereis hibernica – synonym of Abyssoninoe hibernica
Lumbriconereis hibernica – synonym of Lumbrineris tetraura
Lumbriconereis hibernica McIntosh, 1903 – synonym of Abyssoninoe hibernica
Lumbriconereis hibernica McIntosh, 1910 – synonym of Lumbrineris tetraura
Lumbriconereis impatiens – synonym of Lumbrineris tetraura
Lumbriconereis impatiens Claparède, 1868 – synonym of Lumbrineris tetraura
Lumbriconereis latreilli – synonym of Lumbrineris latreilli
Lumbriconereis latreilli McIntosh, 1910 – synonym of Lumbrineris latreilli
Lumbriconereis laurentiana – synonym of Lumbrineris tetraura
Lumbriconereis laurentiana McIntosh, 1874 – synonym of Lumbrineris tetraura
Lumbriconereis minuta – synonym of Lumbrineris fragilis
Lumbriconereis minuta Michaelsen, 1897 – synonym of Lumbrineris fragilis
Lumbriconereis nardonis – synonym of Lumbrineris latreilli
Lumbriconereis nardonis Michaelsen, 1897 – synonym of Lumbrineris latreilli
Lumbricus armiger – synonym of Scoloplos armiger
Lumbricus armiger O.F Müller, 1776 – synonym of Scoloplos armiger
Lumbricus capitatus – synonym of Capitella capitata
Lumbricus capitatus Fabricius, 1780 – synonym of Capitella capitata
Lumbricus cirratus – synonym of Cirratulus cirratus
Lumbricus cirratus Müller, 1776 – synonym of Cirratulus cirratus
Lumbricus fragilis – synonym of Lumbrineris fragilis
Lumbricus fragilis Müller, 1766 – synonym of Lumbrineris fragilis
Lumbricus marinus – synonym of Arenicola marina
Lumbricus marinus Linnaeus, 1758 – synonym of Arenicola marina
Lumbricus squamatus – synonym of Scolelepis squamata
Lumbricus squamatus O.M. Müller, 1806 – synonym of Scolelepis squamata
Lumbrinereis hibernica – synonym of Abyssoninoe hibernica
Lumbrinereis hibernica Eliason, 1962 – synonym of Abyssoninoe hibernica
Lumbrineris agastos Fauchald, 1974 – synonym of Lumbrineris agastos
Lumbrineris aniara Fauchald, 1974 – synonym of Lumbrineris aniara
Lumbrineris fragilis – synonym of Abyssoninoe hibernica
Lumbrineris fragilis (non Müller) Hartmann-Schröder, 1974 – synonym of Abyssoninoe hibernica
Lumbrineris fragilis Hartmann-Schröder, 1971 – synonym of Lumbrineris fragilis
Lumbrineris gracilis Hartmann-Schröder, 1971 – synonym of Lumbrineris gracilis
Lumbrineris latreilli – synonym of Lumbrineris aniara
Lumbrineris latreilli (non Adouin & Milne-Edwards) Fauchald, 1972 – synonym of Lumbrineris aniara
Lumbrineris latreilli Audouin & Milne Edwards, 1834 – synonym of Lumbrineris latreilli
Lumbrineris magnidentata Wisnes, 1981 – synonym of Lumbrineris magnidentata
Lumbrineris pseudo-fragilis – synonym of Abyssoninoe hibernica
Lumbrineris pseudo-fragilis Amoureux, 1977 – synonym of Abyssoninoe hibernica
Lumbrineris scopa – synonym of Abyssoninoe hibernica
Lumbrineris scopa Fauchald, 1974 – synonym of Abyssoninoe hibernica
Lumbrineris tetraura Hartmann-Schröder, 1971 – synonym of Lumbrineris tetraura
Lycoris fucata – synonym of Nereis fucata
Lycoris fucata Savigny, 1820 – synonym of Nereis fucata
Lysilla loveni Malmgren, 1866 – synonym of Lysilla loveni
Lysippe labiata Malmgren, 1866 – synonym of Lysippe labiata
Lysippe vanelli – synonym of Eclysippe vanelli
Lysippe vanelli Fauvel, 1936 – synonym of Eclysippe vanelli
Lysippides fragilis Eliason, 1955 – synonym of Lysippides fragilis