Characters: Colonies are massive and occasionally occur as free-living mobile balls. Corallites are rounded and shallow, 2.5-3.5 millimetres diameter. Septa have curved upper margins and are granulated. Most are not fused and do not form distinct cycles. Columellae consist of one or a few granules.
Colour: Reddish-brown with pale walls.
Similar Species: Superficially similar to Siderastrea radians but corallite characters are more like S. savignyana.
Habitat: Shallow lagoons and intertidal pools.
Abundance: Common.
Taxonomic References: Dai (1989); Veron (2000a);
Identification Guides: Hetzel and Castro (1994);
