Rhodymenia cinnabarina J. Agardh, 1841: 447–448 (type locality: "in mari Indico'').—J. Agardh, 1851 [1851–1863]: 382.— De Toni, 1900: 517.
Sphaerococcus cinnabarinus (J. Agardh) Kützing, 1849: 781.—G. Martens, 1868: 96–97.
INDIAN OCEAN DISTRIBUTION: "in mari Indico''.