Caulerpa freycinetii C. Agardh forma spiralis Weber-van Bosse, 1898: 314, 315 ("var. typica'' forma spiralis) (type locality: New Caledonia).—Weber-van Bosse, 1908: 171.— Weber-van Bosse, 1909: 381.— Rhyne, 1971: 50.
Caulerpa serrulata (Forsskål) J. Agardh [var. serrulata] forma spiralis (Weber-van Bosse) Gilbert, 1942: 15 ("var. typica'' forma spiralis) (including Indian Ocean record).—W.R. Taylor, 1967: 51.— Jaasund, 1977d: 513.— Kalugina-Gutnik, Perestenko, & Titlyanova, 1992: 23 (table 1).— Titlyanova, Perestenko, & Kalugina-Gutnik, 1992: 45.
INDIAN OCEAN DISTRIBUTION: Amirante Islands, Diego Garcia Atoll, Indonesia (Java), Seychelles, Tanzania.