Callithamnion crispulum Harvey, 1855b: 562 (type locality: Rottnest Island, Western Australia).—Harvey, 1863: lii.— J. Agardh, 1876: 46.— Sonder, 1880: 10.— Lucas, 1927: 469, pl. xxxv: fig. 2.— Huisman & Walker, 1990: 419.
Spongoclonium ? crispulum (Harvey) De Toni, 1903: 1363–1364.—Lucas, 1909: 50.
INDIAN OCEAN DISTRIBUTION: Australia.