下屬物種
本屬包括以下物種：[1]
- Placenta lamellata Dey, 1961
- Placenta miocenica Suess, 1850
- Placuna ephippium (Philipsson, 1788)
- Placuna lincolnii (J.E.Gray, 1849)
- Placuna lobata G.B.Sowerby II, 1871
- Placuna mandirantjanensis (Martin, 1909)
- Placuna nodulosa Zieten, 1832
- 海月 Placuna placenta (Linnaeus, 1758)
- Placuna quadrangula (Philipsson, 1788)
參考文獻
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