Characters: Colonies are generally submassive or solid plates, usually without axial corallites. Multiple axial corallites, if present, are on branch margins. Corallites are smooth, rounded and not very exsert. The coenosteum is composed of fine spinules with elaborated tips.
Colour: Pale cream or brown.
Habitat: Occurs in all reef environments, especially upper reef slopes and reef flats.
Abundance: Common, but less so than Isopora palifera.