Ammochares assimilis Sars, 1851 accepted as Owenia assimilis (Sars, 1851) (original description)
Amphitrite eschrichtii Rathke, 1843 accepted as Cistenides granulata (Linnaeus, 1767) (additional source)
Clymene cirrosa Sars, 1851 (original description)
Clymene lumbricalis (Fabricius, 1780) accepted as Nicomache lumbricalis (Fabricius, 1780) (additional source)
Clymene muelleri Sars, 1856 accepted as Proclymene muelleri (Sars, 1856) (additional source)
Euphrosyna armadillo M. Sars, 1851 accepted as Euphrosine armadillo M. Sars, 1851 (original description)
Nerine cirrata M. Sars, 1851 accepted as Laonice cirrata (M. Sars, 1851) (original description)
Notomastus M. Sars, 1851 (original description)
Notomastus latericeus Sars, 1851 (original description)
Oniscosoma Sars, 1851 accepted as Spinther Johnston, 1845 (original description)
Oniscosoma arcticum Sars, 1851 accepted as Spinther arcticus (M. Sars, 1851) (original description)
Onuphis eschrichti Örsted, 1843 accepted as Nothria conchylega (Sars, 1835) (source of synonymy)
Placostegus politus (Sars, 1851) accepted as Placostegus tridentatus (Fabricius, 1779) (original description)
Sabella crassicornis Sars, 1851 accepted as Bispira crassicornis (Sars, 1851) (original description)
Sabella lucullana Delle Chiaje, 1828 accepted as Branchiomma lucullanum (Delle Chiaje, 1828) (additional source)
Sabella neglecta Sars, 1851 accepted as Potamilla neglecta (Sars, 1851) (original description)
Sabella papillosa Sars, 1851 accepted as Euchone papillosa (Sars, 1851) (original description)
Sabellides Milne Edwards in Lamarck, 1838 accepted as Ampharete Malmgren, 1866 (status source)
Sabellides cristata M. Sars, 1851 accepted as Melinna cristata (M. Sars, 1851) (original description)
Sabellides octocirrata (M. Sars, 1835) accepted as Ampharete octocirrata (Sars, 1835) (new combination reference)
Serpula polita Sars, 1851 accepted as Placostegus tridentatus (Fabricius, 1779) (original description)
Serpula vermicularis non Linnaeus, 1767 sensu Müller, 1789 accepted as Hydroides norvegica Gunnerus, 1768 (additional source)

Norway for Ammochares assimilis Sars, 1851 

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 for Sphinter wiréni [misspelling]

Incorrect subsequent spelling of both genus and species. Here in a checklist listing by Bellan (2001). Retained ... [details]