Sargassum johnstonii Setchell & Gardner, 1924a: 737, pl. 20: fig. 72; pl. 21: fig. 80 (type locality: Georges Island, Sonora, Mexico).—Kappanna, A. Rao, & Mody, 1962: 464.— Kappanna & Sitakara Rao, 1962: 559.— Sitakara Rao & Tipnis, 1964: 17.— Thivy, 1964: 27.— Thivy & Chauhan, 1964: 292–299, figs. 1–23, pls. 1, 2.— Suru, Talreja, & Vaidya, 1966: 129.— Thivy, 1966: 28.— Langalia, Seshadri, & Datar, 1967: tables 1–3.— H. Shah, Mody, & A. Rao, 1967b: 270.— Sitakara Rao & Tipnis, 1967: 279, 281, 283, 285–286.— K. Srinivasan, 1967: 144.— Umamaheswara Rao, 1967: 126.— S. Dixit, 1968: 17.— J. Parekh, Talreja, & Doshi, 1968: 700, 701.— Suru et al., 1968: 296.— Bhalala, 1969: 24.— J. Parekh, Bhalala, et al., 1969: tables I, II.— J. Parekh, Talreja, et al., 1969: table I.— H. Shah & A. Rao, 1969a: 118.— H. Shah & A. Rao, 1969b: 413.— Umamaheswara Rao, 1969c: 716.— Dhandhukia & Seshadri, 1970: 110.— V. Krishnamurthy & H. Joshi, 1970: 14.— Umamaheswara Rao, 1970a: 4.— Gopalakrishnan, 1971: table II.— Mody, A. Rao, & Datar, 1971a: 31, tables 1, 2.— Mody, A. Rao, & Datar, 1971b: table 1.— Subbaramaiah, 1971b: 22.— Chauhan & Mairh, 1978: 34.— Maru, Parekh, & E. Lewis, 1980: table 1.— Nair & Thampy, 1980: 279.— Ohno & Mairh, 1982: 4, tables 1, 3, 5.— Oza & Chauhan, 1982: 69.— Tewari & P. Rao, 1982: 157–162, figs. 1–5, table II.— Thivy, 1982: 55.— Untawale, Dhargalkar, & Agadi, 1983: [23].— Kesava Rao & Indusekhar, 1984: table 1.— Oza, 1984: 3.— M. Dave & Chauhan, 1985: table 1.— Kesava Rao, 1986: table I.— Kesava Rao & Indusekhar, 1986: table I.— Padmini Sreenivasa Rao, Sreenivasa Rao, & Karmarkar, 1986a: 6–8.— Padmini Sreenivasa Rao, Sreenivasa Rao, & Karmarkar, 1986b: 25, table 2.— Padmini Sreenivasa Rao, Sreenivasa Rao, & Karmarkar, 1986c: 503–507, figs. 1, 2, tables I–III.— Chennubhotla, Kaliaperumal, & Kalimuthu, 1987a: 104–105.— Kesava Rao & Indusekhar, 1987a: table 2.— Kesava Rao & Indusekhar, 1987b: 4.— Padmini Sreenivasa Rao, Sreenivasa Rao, & Karmarkar, 1987a: 119.— Padmini Sreenivasa Rao, Sreenivasa Rao, & Karmarkar, 1987b: 149.— Umamaheswara Rao, 1987a: 22.— Padmini Sreenivasa Rao, Sreenivasa Rao, & Karmarkar, 1988b: 9.— Tewari & H. Joshi, 1988: 394, tables VII, X.— Kesava Rao & Indusekhar, 1989a: 63, fig. 2, tables 1, 2.— Kesava Rao & Indusekhar, 1989b: 74, figs. 2, 3.— Kesava Rao & Indusekhar, 1989c: table 1.— Mairh, Ramavat, et al., 1989: 3308.— Padmini Sreenivasa Rao, 1989a: 23, tables 1–3.— Padmini Sreenivasa Rao, 1989b: 28.— M. Ganesan et al., 1991b: table 2.— Padmini Sreenivasa Rao, Sreenivasa Rao, & Karmarkar, 1991: 15, tables 1–3.— M. Vijayaraghavan, 1991: 74.— M. Vijayaraghavan & Kaur, 1991a: 347, figs. 2, 5–10.— M. Vijayaraghavan & Kaur, 1991b: 319.— Kaur & Vijayaraghavan, 1992a: 173–184, figs. 1, 3.— Kaur & Vijayaraghavan, 1992b: 375–384, figs. 1–4.— Mody & Chauhan, 1992: 118.— Padmini Sreenivasa Rao, 1992a: 159.— Padmini Sreenivasa Rao, 1992b: 167.— Premnathan et al., 1992: table I.— M. Vijayaraghavan & Kaur, 1992: 325, figs. 2, 6, 7.— Kaliaperumal & Kalimuthu, 1993: 9, 11.
INDIAN OCEAN DISTRIBUTION: India.