Duvaucelia is a genus of sea slugs, nudibranchs, shell-less marine gastropod molluscs in the family Tritoniidae.MolluscaBase eds. (2020). MolluscaBase. Duvaucelia Risso, 1826. Accessed on 2021-01-01. It was synonymised with Tritonia until 2020 when a revision of the family Tritoniidae brought it back into use.Korshunova, T.; Martynov, A. (2020). Consolidated data on the phylogeny and evolution of the family Tritoniidae (Gastropoda: Nudibranchia) contribute to genera reassessment and clarify the taxonomic status of the neuroscience models Tritonia and Tochuina. PLOS ONE. 15(11): e0242103. A 2023 analysis later established it as a synonym of Candiella.

Species Species within the genus Duvaucelia include: Duvaucelia lineata (Alder & Hancock, 1848) Duvaucelia manicata (Deshayes, 1853) Duvaucelia odhneri J. Tardy, 1963 (=Tritonia nilsodhneri Ev. Marcus, 1983 Duvaucelia plebeia (G. Johnston, 1828) Duvaucelia striata (Haefelfinger, 1963) Duvaucelia taliartensis (Ortea & Moro, 2009)

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