Colonies are thin, flat, encrusting laminae with widely spaced irregular corallites. A central corallite may be distinguishable. Most corallites are shallow, elliptical and concentrically arranged or irregular. Costae are exsert, equal, smooth and have a toothed lobe where they commence. There are perforations between the costae and the coenosteum is finely ridged. Columellae are small.
Green or cream with pale costae.
Protected turbid reef environments, especially on steeply sloping surfaces.