''Tambja morosa'', also known as ''Tambja kushimotoensis'' or ''Gloomy Nudibranch'', is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the subfamily Nembrothinae within the family Polyceridae.
This species is instead sometimes placed in the family Gymnodorididae.
Similar species: Sea Slugs
By Patomarazul
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Uploaded Oct 6, 2018. Captured May 21, 2018 05:57 in Unnamed Road, Batulubang, Lembeh Sel., Kota Bitung, Sulawesi Utara, Indonesia.
