831 species

Siderastrea radians

(Pallas, 1766)


de Blainville, 1830

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.

Similar Species: Siderastrea stellata.

Habitat: Shallow reef.

Abundance: Common.

Taxonomic Note: The type species of Siderastrea de Blainville, 1830.

Taxonomic References: Cairns (1982); Zlatarski and Estalella (1982); Veron (2000a);

Identification Guides: Humann (2002);

COTW History since Veron (2000a)
  • Family: All families are currently under review
  • Genus/species: No change