Coryphella abei is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae. Ekimova I., Carmona L., Mikhlina AL., Grishina D., Stanovova M.V., Schepetov D.M., Hoover C., de Souza-Canal J., Kuznetsov K.O., Valdés A.; (2026). Neither "lumpers" nor "splitters": A global revision of Flabellinidae s.l. nudibranchs (Gastropoda: Heterobranchia: Nudibranchia). PLoS One 21(5): e0347759.
Both Ekimova et al. (2026) and Korshunova et al. (2025) consider its placement within Coryphella as only provisional, believing further study is needed to confirm or otherwise clarify its placement. Korshunova T.; Fletcher K.; Martynov A. (2025). The endless forms are the most differentiated—how taxonomic pseudo-optimization masked natural diversity and evolution: the nudibranch case Zoological Journal of the Linnean Society. Volume 204, Issue 4, August 2025.
Distribution This species was originally described near Toyama Bay, Japan in the Sea of Japan.
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