Conferva valonioides Sonder, 1845: 49 (type locality: Western Australia).—Sonder, 1846 [1846–1848]: 149.— De Toni & Levi, 1888: 102.
Cladophora valonioides (Sonder) Kützing, 1849: 391 (including Indian Ocean records).—Kützing, 1853: 25, pl. 85: fig. I.— Harvey, 1859a: pl. LXXVIII.— Harvey, 1863: lx.— Dickie, 1874b: 199.— Sonder, 1880: 40.— G. Murray, 1887: 42.— De Toni, 1889: 308.— Lucas, 1936: 27, fig. 10.— Newton, 1953: 398.— Womersley, 1956: 360.— van den Hoek & Womersley, 1984: 196, 198, fig. 65A.— Kendrick, Walker, & McComb, 1988: 205, table 1.— Huisman et al., 1990: 91.— Huisman & Walker, 1990: 358.— Kendrick, Huisman, & Walker, 1990: 49.— Cambridge, Breeman, & van den Hoek, 1991: fig. 1.
Siphonocladus valonioides (Sonder) Reinbold, 1899: 41.—De Toni & Forti, 1923: 89–90.
Taxonomic synonym:
* Conferva nitidula Sonder, 1845: 49 (type locality: Western Australia).—Sonder, 1846 [1846–1848]: 149.
Cladophora nitidula (Sonder) Kützing, 1849: 391.—Kützing, 1853: 25, pl. 84: fig. II.— Harvey, 1863: lx.— Sonder, 1880: 40.— De Toni, 1889: 308.— Lucas, 1912: 166.— Lucas, 1936: 27.
INDIAN OCEAN DISTRIBUTION: southeast Arabian coast, Australia, Mauritius, Sri Lanka.
Note: The synonymy was proposed by Womersley (1956: 360).