Characters: Colonies are encrusting or branching, with highly fused branches. Corallites are rounded or polygonal. Columellae are broad and conspicuous. Polyps have fine, tapered tentacles. Colour: Dark brown with white oral discs. Similar species: Goniopora savignyi, which has larger corallites, elongate polyps and lacks well developed columellae. See also G. palmensis. Habitat: Upper reef slopes protected from strong wave action. Abundance: Usually uncommon.