Info
Characters: Colonies are massive, usually less than 300 millimetres across. They sometimes occur as free-living mobile balls. Corallites are rounded, deep, usually irregular and 2.5-3 millimetres diameter. Septa are in three clearly defined cycles. Columellae consist of one or a few granules.
Colour: Uniform light browns.
Habitat: Shallow reef.
Abundance: Common.
Text source: Corals of the World by Charlie J.E.N. Veron.
Synonymised names
Astraea (Siderastraea) galaxea (Ellis & Solander, 1786) · unaccepted > junior subjective synonym
Astraea (Siderina) galaxea (Ellis & Solander, 1786) · unaccepted > junior subjective synonym
Astraea galaxea (Ellis & Solander, 1786) · unaccepted > junior subjective synonym
Astraea punctifera Lamarck, 1816 · unaccepted > junior subjective synonym
Astraea radians (Pallas, 1766) · unaccepted > superseded combination
Astraea senegalensis (Milne Edwards & Haime, 1849) · unaccepted > junior subjective synonym
Astraeopora punctifera (Lamarck, 1816) · unaccepted > junior subjective synonym
Astrea galaxea (Ellis & Solander, 1786) · unaccepted > junior subjective synonym
Astrea radians (Pallas, 1766) · unaccepted > superseded combination
Astrea radians astroites Oken, 1815 · unaccepted > unavailable name
Astreopora punctifera (Lamarck, 1816) · unaccepted > junior subjective synonym
Explanaria galaxea (Ellis & Solander, 1786) · unaccepted > junior subjective synonym
Madrepora galaxea Ellis & Solander, 1786 · unaccepted > junior subjective synonym
Madrepora radians Pallas, 1766 · unaccepted > superseded combination (basionym)
Siderastraea radians (Pallas, 1766) · unaccepted > misspelling - incorrect subsequent spelling
Siderastraea radians var. pulchella Milne Edwards & Haime, 1848 · unaccepted > junior subjective synonym
Siderastraea radians var. radians (Pallas, 1766) · unaccepted > superseded combination
Siderastrea circumfossata Thiel, 1928 · unaccepted > junior subjective synonym
Siderastrea galaxea (Ellis & Solander, 1786) · unaccepted > junior subjective synonym
Siderastrea radians f. radians (Pallas, 1766) · unaccepted > superseded combination
Siderastrea senegalensis Milne Edwards & Haime, 1849 · unaccepted > junior subjective synonym
Siderina galaxea (Ellis & Solander, 1786) · unaccepted > junior subjective synonym
Direct children (2)
Forma Siderastrea radians f. radians (Pallas, 1766) accepted as Siderastrea radians (Pallas, 1766) (unaccepted > superseded combination)
Forma Siderastrea radians f. stellata Verill, 1868 accepted as Siderastrea stellata Verrill, 1868 (unaccepted > superseded combination)