Colonies are flat (foliaceous or encrusting), massive or branching. Massive colonies are spherical or hemispherical when small and helmet- or dome-shaped when large, and are commonly over 5 m in diameter. Corallites are small, immersed, with calices less than 2 mm in diameter and filled with septa. Polyps are usually extended only at night (Veron, 1986). Corallites often very small (<2 mm across), but colonies very large. Colonies domed; can reach up to 8 m in height (Richmond, 1997).
- Veron, J.E.N. (1986). Corals of Australia and the Indo-Pacific. Angus & Robertson Publishers, London.
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