Characters: Colonies are flat plates with corallites aligned in shallow depressions parallel to the colony margin. Septo-costae neatly alternate and are perpendicular to the colony margin.
Colour: Dark grey, brown or green.
Similar Species: Coscinaraea marshae and C. crassa.
Habitat: Rocky foreshores.
Abundance: Uncommon.
Taxonomic References: Wells (1962); Veron and Pichon (1980); Veron (2000a);
Identification Guides: Veron (1986a);
