Characters: Colonies are free-living and elongate, with an axial furrow that may become indistinct. Colonies are occasionally Y, T or X shaped. Centres are evenly distributed over the upper surface. Primary septa are short and elliptical or petaloid. Secondary septa usually fuse around the primaries to form a background matrix. Tentacles are usually extended during the day; they are long and numerous.
Colour: Grey, greenish or cream, with white tentacle tips.
Similar Species: Polyphyllia novaehiberniae.
Habitat: Reef slopes, especially where Fungia is common.
Abundance: Common.
Taxonomic References: Veron and Pichon (1980); Hoeksema (1989a); Veron (2000a);
Identification Guides: Randall and Myers (1983); Veron (1986a); Nishihira and Veron (1995); Turak and DeVantier (2011b);
