Goniasteridae Forbes, 1841
Mediaster aequalis Stimpson, 1857
Mediaster arcuatus (Sladen, 1889)
Mediaster australiensis H.L. Clark, 1916
Mediaster bairdi (Verrill, 1882)
Mediaster boardmani (Livingstone, 1934)
Mediaster brachiatus Goto, 1914
Mediaster capensis H.L. Clark, 1923
Mediaster dawsoni McKnight, 1973
Mediaster elegans Ludwig, 1905
Mediaster gartrelli H.E.S. Clark, 2001
Mediaster hayi
Mediaster murrayi Macan, 1938
Mediaster ornatus Fisher, 1906
Mediaster pedicellaris (Perrier, 1881)
Mediaster praestans Livingstone, 1933
Mediaster sladeni Benham, 1909
Mediaster tenellus Fisher, 1905
Mediaster transfuga Ludwig, 1905
