Onchidoris olgae is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Onchidorididae.Bouchet, P. (2015). Onchidoris olgae. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2016-01-21.

Distribution This species was described from Starichkov Island, Kamchatka Peninsula on the Pacific Ocean coast of Russia.

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