Aeolidia papillosa (Linnaeus, 1761)
Carronella pellucida (Alder & Hancock, 1843)
Cratena pilata (A. Gould, 1870)
Facelina bostoniensis (Couthouy, 1838)
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