Limacia is a genus of sea slugs, dorid nudibranchs, marine gastropod molluscs in the family Polyceridae.MolluscaBase (2018). Limacia O. F. Müller, 1781. Accessed on 2021-01-12.

Species Species within the genus Limacia include: Limacia annulata Vallès, Valdés & Ortea, 2000 Limacia antofagastensis Uribe, Sepúlveda, Goddard & Valdés, 2017Uribe R.A., Sepúlveda F., Goddard J.H.R. & Valdés Á. (2017). Integrative systematics of the genus Limacia O. F. Müller, 1781 (Gastropoda, Heterobranchia, Nudibranchia, Polyceridae) in the Eastern Pacific. Marine Biodiversity. DOI 10.1007/s12526-017-0676-5 Limacia clavigera (O. F. Müller, 1776) Limacia cockerelli (MacFarland, 1905) Limacia iberica Caballer Gutiérrez, Almón Pazos, Pérez Dieste, 2015Caballer Gutiérrez, M., Almón Pazos, B., Pérez Dieste, J., (2015) The sea slug genus Limacia Müller, 1781 (Mollusca: Gastropoda: Heterobranchia) in Europe. Cahiers de Biologie Marine 57:35-42. Limacia inesae Toms, Pola, Von der Heyden & Gosliner, 2021 Limacia janssi (Bertsch & Ferreira, 1974) Limacia jellyi Toms, Pola, Von der Heyden & Gosliner, 2021 Limacia langavi Toms, Pola, Von der Heyden & Gosliner, 2021 Limacia lucida (Stimpson, 1854) Limacia mcdonaldi Uribe, Sepúlveda, Goddard & Valdés, 2017 Limacia miali Toms, Pola, Von der Heyden & Gosliner, 2021 Limacia ornata (Baba, 1937)

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