Euthora marginifera Areschoug, 1854b: 354 (type locality: Port Phillip, Victoria, Australia).
Mychodea marginifera (Areschoug) Kraft, 1978: 551–555 (including Indian Ocean record).—Huisman & Walker, 1990: 407.— Kraft & Womersley, 1994c: 466, 468.
Taxonomic synonym:
Gymnogongrus foliosus Harvey, 1862: pl. CXCIV (syntype localities: Port Phillip Heads and Western Port, Victoria, Australia).
Mychodea foliosa (Harvey) J. Agardh, 1872: 35.—Ducker, Foord, & Knox, 1977: 83.
INDIAN OCEAN DISTRIBUTION: Australia.
Note: The synonymy was proposed by Kraft (1978: 551, 555). The name Gymnogongrus foliosus, without a description, was used by Harvey in his Australian exsiccata (1857c: no. 396).