Borealia Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schrödl & Picton, 2017 (homonym of Borealia Maksimova, 1977 [Trilobita]) Borealea is a genus of sea slugs, specifically aeolid nudibranchs, marine gastropod molluscs in the family Coryphellidae.

[2][3][1] Species within the genus Borealea are as follows:[2]