Udotea indica A. Gepp & E. Gepp, 1911: 121–122, pl. II: figs. 13, 14; pl. VI: figs. 52, 53 (type locality: Karachi, Pakistan).—Børgesen, 1930b: 160–161, fig. 5, pl. I: figs. 2, 3.— Børgesen, 1934b: 20.— P. Anand, 1940: 43.— Gerloff, 1960: 622–623.— Kappanna, Sitakara Rao, & Syama Sundar, 1962: 381.— Nizamuddin, 1963: 243–245, figs. 1, 2.— Nizamuddin, 1964a: 77.— Sitakara Rao & Tipnis, 1964: 17.— Salim, 1965: 195.— K. Srinivasan, 1965: 229.— S. Dixit, 1966: 5.— Isaac, 1967: 77.— W. Isaac & F. Isaac, 1968: 27, pl. 5: E.— Nizamuddin, 1969: 258, 260, figs. 38a–e, pls. VIII, IX.— H. Dave, Sitakara Rao, & Tipnis, 1970: 68.— V. Krishnamurthy & H. Joshi, 1970: 8.— Gopalakrishnan, 1971: tables II–IV.— Saifullah, 1973: 142.— K. Srinivasan, 1973: 34, pl. XXXIV.— M. Dave & Parekh, 1975: 43.— Sartoni, 1975: 286.— Sartoni, 1976: 125.— R. Parekh, Maru, & Dave, 1977: 360.— Chauhan & Mairh, 1978: 33.— Pichon, 1978: 422.— Sartoni, 1979: 292, figs. 8b, 9B.— Lawson, 1980: 16.— Untawale, Dhargalkar, & Agadi, 1983: [14].— Banaimoon, 1988a: 216, fig. 1.— Moorjani & Simpson, 1988: 16, pl. 28.— Tewari & H. Joshi, 1988: tables VIII, XI.— Untawale, Reddy, & Ambiye, 1989: table 1.— Farooqi et al., 1990: 2061.— Kamat et al., 1991: 54.— V. Kumar, 1993a: 139, 140.— V. Kumar, 1993b: 47.— Kerkar, 1994: table 1.— Ormond & Banaimoon, 1994: 117.
Decaisnella indica (A. Gepp & E. Gepp) Farghaly, 1980: 257, nom. inval.—Shameel & Afaq Hussain, 1987: 294.— Shameel, Afaq-Husain, & Shahid-Husain, 1989: 178.— Naqvi et al., 1992: 132.— Shameel & J. Tanaka, 1992: 27.
INDIAN OCEAN DISTRIBUTION: India, Kenya, Madagascar, Pakistan, Somalia, Yemen.
Note: The genus Decaisnella was segregated from Udotea by Farghaly (1980: 95, 256), but the generic name is invalid since the author did not provide a Latin diagnosis and thus failed to satisfy Art. 36.2. The intended combination is thus invalid in accordance with Art. 43.1.