Characters: Polyps are circular or slightly oval domes up to 40 millimetres wide with a concave undersurface. Septa are straight and symmetrical. Primary septa are thick and exsert around the mouth.
Colour: Pale cream or greenish, often with white margins to major septa. Sometimes brightly coloured in shallow water.
Similar species: Cycloseris curvata.
Habitat: Soft inter-reef and sometimes reef substrates.
