Amphiroa acutiloba Decaisne, 1842b: 125 (type locality: Mauritius).—Kützing, 1849: 704.— Areschoug, 1852: 547.— Montagne & Millardet, 1862: 16–17.— G. Martens, 1868: 86–87.— De Toni & Levi, 1888: 34.
Cheilosporum acutilobum (Decaisne) Piccone, 1886: 66 (including Indian Ocean record).—De Toni, 1905: 1833.— Mazza, 1918 [1905–1918]: 62–64.— Børgesen, 1943: 19–21, fig. 5.— Børgesen, 1950b: 7–8, fig. 1.— Baissac, Lubet, & Michel, 1962: 263.— Hodgkin & Michel, 1963: 131.— Jaasund, 1976: 81, fig. 163.— Jaasund, 1977c: 419.— Lawson, 1980: 38.— Payri, 1985: 640.— Srimanobhas et al., 1990: 108.— Jagtap, 1992: 57.— Jagtap, 1993: table I.— Wynne, 1995: 270, fig. 7.
Taxonomic synonym:
Cheilosporum jungermannioides Ruprecht ex Areschoug, 1852: 546–547 (type locality: Tahiti).—Weber-van Bosse, 1904c: 107.— Manza, 1940: 295.— Børgesen, 1950b: 8.— Børgesen, 1953: 26, fig. 7.— Isaac, 1971: 15.— Lawson, 1980: 38.— Moorjani & Simpson, 1988: 27, pl. 51.— Jagtap, 1993: table I.— Wynne, 1995: 306.
INDIAN OCEAN DISTRIBUTION: Indonesia (Java), Kenya, Mauritius, Nicobar Islands, Réunion, Seychelles (including Mahé Island), Sri Lanka, Tanzania.
Note: The synonymy was proposed by Srimanobhas et al. (1990: 104), who suggested the possibility that the records of Børgesen (1943; 1953) are representative of another species.