The Astrocoeniidae are a small family of stony corals. The family is distributed across the tropical and subtropical oceans worldwide.
Astrocoeniids include both hermatypic and ahermatypic (reef-building) colonial corals, both with and without symbiotic zooxanthellae. The family is made up of both branching and encrusting species which can range in size from less than 5 cm (2.0 in) to more than 30 m (98 ft) across.
The World Register of Marine Species includes these genera and species in the family:
Astrocoenia Milne Edwards & Haime, 1848 †
Madracis Milne Edwards & Haime, 1849
Madracis asanoi Yabe & Sugiyama, 1936
Madracis asperula Milne Edwards & Haime, 1849
Madracis auretenra Locke, Weil & Coates, 2007
Madracis brueggemanni (Ridley, 1881)
Madracis carmabi Vermeij, Diekmann & Bak, 2003
Madracis decactis (Lyman, 1859)
Madracis formosa Wells, 1973
Madracis fragilis Neves & Johnsson, 2009
Madracis hellana Milne Edwards & Haime, 1850
Madracis interjecta Marenzeller, 1907
Madracis kauaiensis Vaughan, 1907
Madracis kirbyi Veron & Pichon, 1976
Madracis myriaster (Milne Edwards & Haime, 1850)
Madracis pharensis (Heller, 1868)
Madracis profunda Zibrowius, 1980
Madracis senaria Wells, 1973
Palauastrea
Palauastrea ramosa Yabe & Sugiyama, 1941
Stephanocoenia
Stephanocoenia intersepta (Lamarck, 1816) - synonym, Stephanocoenia michelini
Stylocoeniella
Stylocoeniella armata (Ehrenberg, 1843)
Stylocoeniella cocosensis Veron, 1990
Stylocoeniella guentheri Bassett-Smith, 1890
Stylocoeniella hanzawai (Yabe & Sugiyama)
Stylocoeniella nikei Benzoni & Pichon, 2004
