Characters: Colonies are massive, either rounded or hillocky. Corallites are cerioid, without columellae and with neatly arranged (almost Siderastrea-like) septo-costae. Septo-costae are joined at the top of the walls. Tentacles are extended only at night.
Colour: Pale green, yellow or brown, usually with darker calices.
Similar Species: Coeloseris is a well defined genus closest to Pavona. Superficially it looks like Leptastrea. See also Anomastraea irregularis.
Habitat: Shallow upper reef slopes and lagoons.
Abundance: Uncommon.
Taxonomic Note: The type species of Coeloseris Vaughan, 1918. Very distinct species.
Taxonomic References: Veron and Pichon (1980); Dai and Lin (1992); Veron (2000a);
Identification Guides: Veron (1986a); Nishihira and Veron (1995); Turak and DeVantier (2011b);
