Characters: Colonies are clumps of anastomosing contorted branches. Large colonies may develop basal laminae. Corallites are widely spaced and conspicuously excavated. The coenosteum is fine. Colour: Pale brown or grey. Similar species: Porites rugosa. See also P. nigrescens, which has less excavated corallites. Resembles the acroporid Montipora porites underwater. Habitat: Shallow protected reef environments where diversity is high. Abundance: Uncommon