Atalodoris inconspicua is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Onchidorididae.MolluscaBase eds. (2025). MolluscaBase. Atalodoris inconspicua (Alder & Hancock, 1851). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1565669 on 2025-09-09 Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels. 50: pp. 180–213

Description (Original description) The body is a purplish-white with minute brown spots and is not significantly depressed. The cloak is covered with small, obtuse tubercles. The tentacles are subclavate and stout, while the branchial plumes are ten in number, white, and arranged in an open circle.Alder, J., & A. Hancock (1851) A monograph of the British nudibranchiate Mollusca: with figures of all the species. Pt. 5, fam. 1, pl. 12. Ray Society, London.

Distribution This species was described from Northumberland, England. It is currently known from the European coasts of the North Atlantic Ocean from Norway south to Brittany.Picton, B.E. & Morrow, C.C. (2015). Onchidoris inconspicua (Alder & Hancock, 1851). [In] Encyclopedia of Marine Life of Britain and Ireland. Accessed on 2016-01-16.

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