Purpuradusta gracilis gracilis   (Gaskoin, 1849)

Range:   Indian Ocean along Aldabra, Chagos, Kenya, the Mascarene Basin, Mauritius, Réunion, the Seychelles, Somalia and Tanzania


Purpuradusta gracilis macula    (Angas, 1867)

Range: E Australia, Fiji


Purpuradusta gracilis notata    (Gill, 1858)

Range:  Red Sea, Somalia, Gulf of Oman, Mediterranean