Champia compressa Harvey, 1838: 402 (type locality: Muizenberg, False Bay, Cape Province, South Africa).—Kützing, 1849: 862.— J. Agardh, 1851 [1851–1863]: 370.— Harvey, 1857a: no. 16.— J. Agardh, 1876: 305.— G. Murray, 1887: 25.— De Toni & Levi, 1888: 44.— Barton, 1893: 141.— Reinbold, 1907: 571.— Mazza, 1908 [1905–1918]: 4–5.— Weber-van Bosse, 1913b: 119.— Weber-van Bosse, 1914: 283.— Delf & Michell, 1921: 110.— Jadin, 1935: 166.— Børgesen, 1937b: 332–333, fig. 8.— Kylin, 1938: 14.— P. Anand, 1940: 5, 8.— P. Anand, 1943b: 64–66, figs. 44A–C.— Børgesen, 1944: 30.— Stephenson, 1944: 317, 350.— Stephenson, 1947: 302.— Millard & Harrison, 1954: 175.— Isaac, 1956a: 185–186.— Isaac, 1958: 21.— Pocock, 1958: 26.— Salim, 1965: 195, 196.— S. Dixit, 1966: 17.— Isaac, 1967: 80.— Seagrief, 1967: 78, pl. [31].— Simons, 1969: 256, fig. (s.n.).— Umamaheswara Rao, 1969d: 46.— Rhyne, 1971: 57.— E. Lewis, 1973: 145, 146, 147.— Simons, 1977: 50, fig. 145.— Chauhan & Mairh, 1978: 35.— Joubert & Hanekom, 1980: 263, appendices 1–3.— Lawson, 1980: 38.— Seagrief, 1980: 26, fig. on pl. 10.— Untawale, Dhargalkar, & Agadi, 1983: [34].— Barratt et al., 1984: species list.— Chaugule & Deodhar, 1985: 63–64, figs. 1–3.— Bolton, 1986: 254.— Lambert & Steinke, 1986a: 54.— Lambert & Steinke, 1986b: 211, 213, 215, 216.— Bolton & Stegenga, 1987: 173.— M. Dave et al., 1987: table 1.— Shameel, 1987a: 514.— Shameel & Afaq Hussain, 1987: 297.— Seagrief, 1988: 60, fig. 5:12.— R. Anderson & Stegenga, 1989: 302, 304.— Shameel, Afaq-Husain, & Shahid-Husain, 1989: 180.— Bolton & Stegenga, 1990: 237.— Huisman et al., 1990: 95.— Millar, 1990: 372.— Maya & Nair, 1992: 26.— Shameel & J. Tanaka, 1992: 50.— Farrell, Critchley, & Aken, 1993: 154.— Branch et al., 1994: 332, pl. 158.7.
Taxonomic synonym:
* Gastridium zonatum Suhr, 1834: 732–733, pl. II: fig. 19 (type locality: Algoa Bay, Cape Province, South Africa).
INDIAN OCEAN DISTRIBUTION: Amirante Islands, Australia, Diego Garcia Atoll, India, Kenya, Mauritius?, Mozambique, Oman, Pakistan, Réunion, Seychelles (Coetivy Reef), South Africa, Sri Lanka.
Note: The conspecificity of Gastridium zonatum and Champia compressa was proposed by Kützing (1849: 862), who should have adopted the epithet zonata. He did not do so, however, and it is not possible to do so now because of the existence of the name Champia zonata (J. Agardh) J. Agardh, applied to a different species (q.v.).