Delesseria revoluta Harvey, 1855b: 548 (including Indian Ocean record) (lectotype locality: King George Sound, Western Australia fide Womersley & Shepley, 1982: 326).—Harvey, 1860b: pl. CLXX.— Harvey, 1863: xxxi.— J. Agardh, 1876: 490–491.— Sonder, 1880: 24.
Hypoglossum revolutum (Harvey) J. Agardh, 1898: 188.—De Toni, 1900: 692.— Lucas, 1909: 36.— Lucas & Perrin, 1947: 228, fig. 91.— Womersley & Shepley, 1982: 323, 326, figs. 1A, 3.— Huisman & Walker, 1990: 430.
INDIAN OCEAN DISTRIBUTION: Australia.