• Placuna aestuaria Y.-T. Lin, Y.-X. Li, H.-X. Loke, X. Han & J.-W. Qiu, 2024
• Placuna cymbalea Locard, 1889 † (uncertain > unassessed)
• Placuna ephippium (Philipsson, 1788)
• Placuna lincolnii (J. E. Gray, 1849)
• Placuna lobata G. B. Sowerby II, 1871
• Placuna mandirantjanensis K. Martin, 1909 †
• Placuna nodulosa Zieten, 1832 † (uncertain > unassessed)
• Placuna placenta (Linnaeus, 1758)
• Placuna pseudoplacenta K. Martin, 1909 †
• Placuna quadrangula (Philipsson, 1788)
• Placuna solida Melleville, 1843 † accepted as Hemiplicatula solida (Melleville, 1843) †
• Placuna vitream Y.-T. Lin, Y.-X. Li, H.-X. Loke, X. Han & J.-W. Qiu, 2024