• Acanthodoris pilosa (Abildgaard, 1789)
• Acanthodoris subquadrata (Alder & Hancock, 1845) accepted as Acanthodoris pilosa (Abildgaard, 1789)
• Adalaria proxima (Alder & Hancock, 1854)
• Aeolidia papillosa (Linnaeus, 1761)
• Aldisa zetlandica (Alder & Hancock, 1854)
• Amphorina pallida (Alder & Hancock, 1842)
• Ancula gibbosa (Risso, 1818)
• Berthella americana (A. E. Verrill, 1885)
• Borealea nobilis (A. E. Verrill, 1880) accepted as Coryphella nobilis A. E. Verrill, 1880
• Cadlina laevis (Linnaeus, 1767)
• Cadlina luteomarginata MacFarland, 1966
• Cadlina marginata MacFarland, 1905 accepted as Cadlina luteomarginata MacFarland, 1966
• Cariopsilla pharpa (Er. Marcus, 1961)
• Carronella pellucida (Alder & Hancock, 1843)
• Catriona gymnota (Couthouy, 1838)
• Colga pacifica (Bergh, 1894)
• Colga ramosa (A. E. Verrill & Emerton, 1881)
• Colga villosa (Odhner, 1907)
• Corambe obscura (A. E. Verrill, 1870)
• Coryphella gracilis (Alder & Hancock, 1844)
• Coryphella nobilis A. E. Verrill, 1880
• Coryphella verrucosa (M. Sars, 1829)
• Cratena pilata (A. Gould, 1870)
• Cuthona concinna (Alder & Hancock, 1843) accepted as Cuthonella concinna (Alder & Hancock, 1843)
• Cuthona gymnota (Couthouy, 1838) accepted as Catriona gymnota (Couthouy, 1838)
• Cuthona nana (Alder & Hancock, 1842)
• Cuthona pustulata (Alder & Hancock, 1854) accepted as Zelentia pustulata (Alder & Hancock, 1854)
• Cuthona stimpsoni A. E. Verrill, 1879 accepted as Ziminella salmonacea (Couthouy, 1838)
• Cuthona veronicae (A. E. Verrill, 1880)
• Cuthona viridis (Forbes, 1840) accepted as Diaphoreolis viridis (Forbes, 1840)
• Cuthonella concinna (Alder & Hancock, 1843)
• Dendronotus dalli Bergh, 1879
• Dendronotus elegans A. E. Verrill, 1880
• Dendronotus frondosus (Ascanius, 1774)
• Dendronotus robustus A. E. Verrill, 1870
• Diaphoreolis viridis (Forbes, 1840)
• Doridella obscura A. E. Verrill, 1870 accepted as Corambe obscura (A. E. Verrill, 1870)
• Doriopsilla pharpa Er. Marcus, 1961 accepted as Cariopsilla pharpa (Er. Marcus, 1961)
• Doris verrucosa Linnaeus, 1758
• Doto coronata (Gmelin, 1791)
• Doto formosa A. E. Verrill, 1875
• Eubranchus exiguus (Alder & Hancock, 1848)
• Eubranchus olivaceus (O'Donoghue, 1922)
• Eubranchus pallidus (Alder & Hancock, 1842) accepted as Amphorina pallida (Alder & Hancock, 1842)
• Eubranchus sanjuanensis Roller, 1972
• Eubranchus tricolor Forbes, 1838
• Facelina bostoniensis (Couthouy, 1838)
• Fiona pinnata (Eschscholtz, 1831)
• Flabellina gracilis (Alder & Hancock, 1844) accepted as Microchlamylla gracilis (Alder & Hancock, 1844) accepted as Coryphella gracilis (Alder & Hancock, 1844)
• Flabellina nobilis (A. E. Verrill, 1880) accepted as Borealea nobilis (A. E. Verrill, 1880) accepted as Coryphella nobilis A. E. Verrill, 1880
• Flabellina pellucida (Alder & Hancock, 1843) accepted as Carronella pellucida (Alder & Hancock, 1843)
• Flabellina salmonacea (Couthouy, 1838) accepted as Ziminella salmonacea (Couthouy, 1838)
• Flabellina verrucosa (M. Sars, 1829) accepted as Coryphella verrucosa (M. Sars, 1829)
• Glaucus atlanticus Forster, 1777
• Gymnotoplax americanus (A. E. Verrill, 1885) accepted as Berthella americana (A. E. Verrill, 1885)
• Issena pacifica (Bergh, 1894) accepted as Colga pacifica (Bergh, 1894)
• Issena ramosa (A. E. Verrill & Emerton, 1881) accepted as Colga ramosa (A. E. Verrill & Emerton, 1881)
• Lamellidoris aspera (Alder & Hancock, 1842) accepted as Onchidoris muricata (O. F. Müller, 1776)
• Lamellidoris diaphana (Alder & Hancock, 1845) accepted as Onchidoris muricata (O. F. Müller, 1776)
• Lamellidoris fusca (O. F. Müller, 1776) accepted as Onchidoris bilamellata (Linnaeus, 1767)
• Lamellidoris grisea (Gould, 1870) accepted as Onchidoris grisea (Gould, 1870)
• Microchlamylla gracilis (Alder & Hancock, 1844) accepted as Coryphella gracilis (Alder & Hancock, 1844)
• Okenia ascidicola M. P. Morse, 1972
• Okenia aspersa (Alder & Hancock, 1845)
• Okenia modesta (A. E. Verrill, 1875) accepted as Okenia aspersa (Alder & Hancock, 1845)
• Okenia pulchella (Alder & Hancock, 1854)
• Okenia quadricornis (Montagu, 1813) accepted as Okenia aspersa (Alder & Hancock, 1845)
• Onchidoris aspera (Alder & Hancock, 1842) accepted as Onchidoris muricata (O. F. Müller, 1776)
• Onchidoris bilamellata (Linnaeus, 1767)
• Onchidoris diademata (Gould, 1870) (uncertain > nomen dubium)
• Onchidoris fusca (O. F. Müller, 1776) accepted as Onchidoris bilamellata (Linnaeus, 1767)
• Onchidoris grisea (Gould, 1870) (uncertain > nomen dubium)
• Onchidoris muricata (O. F. Müller, 1776)
• Onchidoris proxima (Alder & Hancock, 1854) accepted as Adalaria proxima (Alder & Hancock, 1854)
• Onchidoris tenella (A. Gould, 1870) (uncertain > nomen dubium)
• Palio dubia (M. Sars, 1829)
• Palio nothus (G. Johnston, 1838)
• Pleurobranchaea obesa (A. E. Verrill, 1882)
• Pleurobranchaea tarda A. E. Verrill, 1880
• Polycera dubia M. Sars, 1829 accepted as Palio dubia (M. Sars, 1829)
• Polycerella conyna Er. Marcus, 1957 accepted as Polycerella emertoni A. E. Verrill, 1880
• Polycerella emertoni A. E. Verrill, 1880
• Scyllaea pelagica Linnaeus, 1758
• Tenellia fuscata (A. Gould, 1870)
• Tenellia gymnota (Couthouy, 1838) accepted as Catriona gymnota (Couthouy, 1838)
• Tenellia pustulata (Alder & Hancock, 1854) accepted as Zelentia pustulata (Alder & Hancock, 1854)
• Tenellia viridis (Forbes, 1840) accepted as Diaphoreolis viridis (Forbes, 1840)
• Tergipes tergipes (Forsskål, 1775)
• Zelentia pustulata (Alder & Hancock, 1854)
• Ziminella salmonacea (Couthouy, 1838)