Characters: Colonies are massive and cerioid, with laterally compressed corallites of uneven height. Walls are acute: septa are thick, with large teeth. Columellae are barely developed. Colonies have a thick fleshy mantle which is covered by fine papillae.
Colour: Very colourful: red, purple and green are the most common colours, with corallites and walls almost always of contrasting colours.
Similar species: Micromussa amakusensis. See also Acanthastrea echinata.
Habitat: Shallow reef environments especially of subtropical localities.
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