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"Description: 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.
Color: Reddish-brown with pale walls.
Habitat: Shallow lagoons and intertidal pools.
Abundance: Common.
Similar Species: Superficially similar to Siderastrea radians but corallite characters are more like S. savignyana."