Colonies are dome-shaped with an even surface and may be up to 2 metres high and 5 metres across. The skeleton is dense. Corallites form low cones with small openings and very thick walls. Columellae are large. Septa are equal and are thick at the wall and thin where joining the columellae. Tentacles are extended only at night.
Usually uniform cream or grey, sometimes greenish.
Both exposed and protected reef environments.
Source reference: Veron (2000). Taxonomic references: Chevalier (1975), Veron, Pichon and Wijsman-Best (1977). Additional identification guides: Randall and Myers (1983), Veron (1986), Sheppard and Sheppard (1991), Nishihira and Veron (1995).
displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Diploastrea heliopora.Tanzania.Forming large spherical colonies.Charlie Veron.