Platydoris esakii is a species of sea slug, a dorid nudibranch, shell-less marine opisthobranch gastropod mollusks in the family Discodorididae.MolluscaBase (2018). Platydoris esakii (Baba, 1936). Accessed on 2018-11-25.

Distribution The holotype for this species was collected at Ishigaki Island, Yaeyama Islands, Ryukyu Islands, Japan.

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