Characters: Colonies are encrusting and helmet-shaped, with neatly scalloped lower margins. Corallites are angular and characteristically aligned in short shallow radiating valleys at the colony margin. Septa are strongly beaded. A small neat paliform crown is usually present. Budding is both intra- and extratentacular. Colour: Pinkish-tan. Similar species: Goniastrea aspera, which does not have corallites aligned in valleys. See also G. palauensis and Favites abdita. Habitat: Shallow reef environments. Abundance: Common.