Cuthona fructuosa is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Cuthonidae.Gofas, S. (2014). Cuthona fructuosa (Bergh, 1892). Accessed through: World Register of Marine Species on 2015-02-13
Distribution This species was described from a single specimen taken on floating Sargassum in the Sargasso Sea.
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