Characters: Colonies are massive with irregular corallites up to 9 millimetres diameter. Septa have large teeth and granulated sides. Paliform lobes are usually well developed. ?Groove and tubercle? formations are sometimes present.
Colour: Dark colours, usually reddish-brown with paler oral discs.
Habitat: Rocky foreshores of temperate locations.
Similar species: Goniastrea aspera , Goniastrea columella , Platygyra contorta