Characters: Colonies are encrusting to massive, with a tendency to form columns. Corallites are usually widely spaced and conical, with clearly alternating costae which are easily visible underwater. There are 12 primary septa. Colour: Usually uniform brown, green or cream with corallite walls and calices of contrasting colours. Similar species: Cyphastrea serailia. Habitat: A wide range of reefs, also rocky foreshores of subtropical locations. Abundance: Common, but less so than C. serailia