Caulerpa plumaris (Forsskål) C. Agardh var. longiseta Bory de Saint-Vincent, 1828 [1826–1829]: 194, pl. 22: fig. 4 (type locality: not specified).
Caulerpa sertularioides (S. Gmelin) Howe forma longiseta (Bory de Saint-Vincent) Svedelius, 1906a: 114–115, fig. 10 (including Indian Ocean record).—Svedelius, 1906b: 197.— S. Dixit, 1933: 36, pl. 6.— Gilbert, 1942: 13–14.— Børgesen, 1946: 38.— Durairatnam, 1961a: 27.— W.R. Taylor, 1967: 51–52.— Umamaheswara Rao, 1969d: 39.— Umamaheswara Rao, 1970b: 367.— Umamaheswara Rao, 1972: 221.— Lind & Morrison, 1974: 130, fig. 4.1g.— Jaasund, 1977d: 513.— Lawson, 1980: 6.— Duraiswamy, 1990a: 76, figs. 8A–I.— Duraiswamy, 1990b: fig. 11J.— Kalimuthu, Kaliaperumal, & Ramalingam, 1992: 121.
Misapplied name (fide Børgesen, 1946: 38):
Caulerpa plumaris (Forsskål) C. Agardh var. elegans.—Jadin, 1935: 156.
INDIAN OCEAN DISTRIBUTION: India, Indonesia (Java), Mauritius, Singapore, Sri Lanka, Tanzania.