Characters: Colonies are massive, hemispherical, flat or columnar, and commonly over one metre across. Corallites are four to six sided. Long and short septa clearly alternate and are thin and straight with well developed thin paliform lobes.
Colour: Uniform cream or pale brown, occasionally brown, pink or green.
Habitat: Sometimes a dominant species of intertidal habitats.
Similar species: Goniastrea minuta
Source reference: Veron (2000). Taxonomic references: Wijsman-Best (1972), Veron, Pichon and Wijsman-Best (1977). Additional identification guides: Veron (1986), Sheppard and Sheppard (1991), Nishihira and Veron (1995).