Heringia filiformis Harvey, 1855b: 549 (type locality: Garden Island, Western Australia).—Harvey, 1863: xxxiii.— J. Agardh, 1876: 438.— Sonder, 1880: 23.— J. Agardh, 1894a: 137.— De Toni, 1900: 403.— Lucas, 1909: 29.— V. May, 1965: 393.
Hypnea filiformis (Harvey) Womersley, 1994: 438, 440 (including Indian Ocean record).
INDIAN OCEAN DISTRIBUTION: Australia.