Eupusia is a genus of small to medium-sized sea snails, marine gastropod molluscs in the family Costellariidae.
The Indo-Pacific species of Pusia (Pusia) have been reassigned in 2025 to the new genus Eupusia.*
Species Eupusia baccheti (R. Salisbury & Herrmann, 2012) Eupusia cappuccino Fedosov, Bouchet, Dekkers, Gori, S.-I Huang, Kantor, Lemarcis, Marrow, Ratti, Rosenberg, R. Salisbury, Zvonareva & Puillandre, 2025 Eupusia clara (S.-I Huang & M. H. Lin, 2020) Eupusia depexa (Deshayes, 1833) Eupusia emiliae (Schmeltz, 1874) Eupusia geronimae (Poppe, Tagaro & R. Salisbury, 2009) Eupusia inermis (Reeve, 1845) Eupusia klytios (H. Turner, 2008) Eupusia lanulenta (S.-I Huang, 2017) Eupusia lauta (Reeve, 1845) Eupusia pardalis (Küster, 1840) Eupusia roris (S.-I Huang & M. H. Lin, 2020) Eupusia semicostata (Anton, 1838) Eupusia vassardi (Fedosov, Herrmann & Bouchet, 2017)
Synonyms Eupusia microzonias (Lamarck, 1811): synonym of Pusia microzonias (Lamarck, 1811) (superseded combination)
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