Marionia dakini is a species of sea slug, a dendronotid nudibranch, a marine gastropod mollusc in the family Tritoniidae.MolluscaBase (2019). MolluscaBase. Marionia dakini (O'Donoghue, 1924). Accessed on 2021-01-12.
Distribution This species was described from the Abrolhos Islands, Australia.
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