Chnoospora implexa J. Agardh, 1848b: 172 (type locality: near Tor, Sinai Peninsula, Egypt).—Dickie, 1874b: 190.— Dickie, 1877b: 6.— Reinbold, 1895a: 25.— Weber-van Bosse, 1913a: 137.— Jadin, 1935: 158.— Børgesen, 1937b: 313.— Børgesen, 1941: 63–65.— Børgesen, 1948: 50.— Børgesen, 1953: 18.— S. Dixit, 1966: 9.— Misra, 1966b: 124.— Umamaheswara Rao, 1969d: 42.— V. Krishnamurthy & H. Joshi, 1970: 13.— Umamaheswara Rao, 1972: 221, fig. 2.— Islam, 1974b: 86.— Islam, 1976: 43, pl. 41: figs. 245, 246.— Jaasund, 1976: 49, fig. 99.— Jaasund, 1977d: 517.— Lawson, 1980: 20.— Naqvi et al., 1981: table I.— Untawale, Dhargalkar, & Agadi, 1983: [20].— Mshigeni, 1985: 16.— Payri, 1985: 640.— Pant & Untawale, 1989: table 6.— Kaliaperumal, Kalimuthu, & Ramalingam, 1990: table 2.— Jagtap, 1993: table I.
Taxonomic synonym:
Dictyota obtusangula Kützing, 1859: 13, pl. 28: fig. II (type locality: Lifuka Island, Tonga).—Dickie, 1874b: 191.
INDIAN OCEAN DISTRIBUTION: Bangladesh, India, Indonesia (Timor), Kenya, Mauritius, Réunion, Rodriguez Island, Seychelles, Tanzania.
Note: Dictyota obtusangula was based on a specimen distributed by Harvey, without a description, in his Friendly Island exsiccata (1857b: no. 59) under the name Chnoospora obtusangula. It was returned to Chnoospora by Sonder (1871: 45–46) and reduced to the synonymy of C. implexa by Grunow (1874: 25).