Wrangelia tenella Harvey, 1855b: 546 (type locality: Rottnest Island, Western Australia).—Harvey, 1863: xxviii.— J. Agardh, 1876: 618.— Sonder, 1880: 28.— De Toni, 1897: 129.— Lucas, 1909: 23.— V. May, 1965: 366.
Trithamnion tenellum (Harvey) Wollaston, 1968: 389.—Huisman & Walker, 1990: 426.
INDIAN OCEAN DISTRIBUTION: Australia.