Acrochaetium robustum Børgesen, 1915: 40–43, figs. 38–40 (type locality: St. Thomas Harbor, Virgin Islands).—Papenfuss, 1945: 317.— Umamaheswara Rao & Sreeramulu, 1964: 599.— V. Krishnamurthy & H. Joshi, 1970: 16.— Basson, 1979: 69, pl. X: fig. 56.— Untawale, Dhargalkar, & Agadi, 1983: [26].— Basson, 1992: 224.— Kalugina-Gutnik, Perestenko, & Titlyanova, 1992: 16 (table 1).— Titlyanova, Perestenko, & Kalugina-Gutnik, 1992: 42.
Kylinia robusta (Børgesen) Desikachary, M. Balakrishnan, & V. Krishnamurthy in Desikachary, V. Krishnamurthy, & M. Balakrishnan, 1990: 69–71, figs. 10G–I,K,O.
Taxonomic synonym:
* Acrochaetium sargassicola Børgesen, 1932b: 115–118, figs. 3–5 (type locality: Bombay, India).—Børgesen, 1935: 41.— Durairatnam, 1961a: 49–50, pl. XI: figs. 1, 2.— K. Srinivasan, 1965: 244.— S. Dixit, 1966: 11.— V. Krishnamurthy & H. Joshi, 1970: 16.— Umamaheswara Rao & Sreeramulu, 1970a: 34.— Hackett, 1977: 12.— S. Dixit, 1980: 69.— Untawale, Dhargalkar, & Agadi, 1983: [27] (as sargassola and sargassicolum).
Kylinia sargassicola (Børgesen) Untawale, Dhargalkar, & Agadi, 1983: [39], nom. inval.
Audouinella sargassicola (Børgesen) Garbary, 1987: 163.
INDIAN OCEAN DISTRIBUTION: India, Maldives, Saudi Arabia, Seychelles, Sri Lanka.
Note: The synonymy was proposed by Nakamura (1941: 284–287).