Characters: Colonies are massive or are unifacial plates. Corallites are immersed or exsert and are surrounded by fused thecal papillae. Coenosteum papillae are usually present. Colour: Usually pale brown, green or blue (which may photograph purple). Similar species: Montipora grisea. See also M. australiensis and M. cocosensis, the latter having large crowded corallites. Habitat: Shallow reef environments. Abundance: Usually uncommon.