Characters: Colonies are thin fused branches with flattened tips. Corallites are deeply excavated and, with a coarse coenosteum, form a rough surface. Tentacles are usually extended during the day.
Colour: Uniform grey-brown or greenish-yellow.
Similar Species: Porites porites and P. furcata.
Habitat: Shallow protected reef environments, especially seagrass beds.
Abundance: Usually common.
Taxonomic References: Squires (1958); Roos (1971); Veron (2000a); Jameson and Cairns (2012);
Identification Guides: Humann (2002);