Characters: Colonies are encrusting, laminar or columnar, the tops of columns commonly having vertical or flame-shaped ridges. Encrusting colonies may have rootlets. Corallites are immersed, without papillae and are aligned vertically between ridges on columns. The coenosteum is coarse; this can be seen underwater. Colour: Usually mottled or uniform brown, cream or blue, sometimes with distinctly coloured margins. Similar species: Montipora cocosensis, which has larger corallites and a coarser coenosteum. See also M. incrassata and M. spongodes, which have a fine coenosteum. Habitat: Most reef environments. Abundance: Common