Characters: Colonies are composed of blunt-ended irregular columns. Corallites have thin, highly perforated walls of interconnected rods and spines. Polyps are up to 100 millimetres long and 20 millimetres diameter when fully extended.
Colour: Oral discs and tentacle tips are white, the rest of the polyps are brown or greenish-brown.
Habitat: Protected turbid environments.
Abundance: Common and conspicuous at the Houtman Abrolhos Islands, south-west Australia, uncommon elsewhere.