Sargassum wightii Greville forma sublineare Grunow, 1915 [1915–1916]: 382 (`sublinearis') (type locality: Sri Lanka).—Durairatnam, 1961a: 43, pl. VIII: figs. 11–18; pl. IX: fig. 1.— K. Srinivasan, 1967: 150, fig. 19.— M. Begum & Khatoon, 1988: 302–303, 304.— Shameel & J. Tanaka, 1992: 42.
INDIAN OCEAN DISTRIBUTION: India, Pakistan, Sri Lanka.
Note: Shameel & J. Tanaka (1992: 42) cited Sargassum wightii in repeating the record by M. Begum & Khatoon of Sargassum wightii forma sublineare.