Uncommon along dropoffs in deeper water.  Forms encrustations, plates, and occasionally tubes, with nodules scattered among elevated calices tilted slightly outward.  Septa are sharp, alternating and granular, especially toward the margins, with distinctive curved ridges linking calices.  Leptoseris hawaiiensis has flat-topped granular septa.   East Africa to Japan and Pitcairn.

Coral skeletons illustrated are from scientific collections taken prior to 1998.