Characters: Usually only one large central corallite is formed and this is distinctive. Peripheral corallites are usually much smaller. Sometimes there is a small cluster of central corallites. Septo-costae radiate from the central corallite, are thin, wavy and exsert and may have tentacular lobes.
Colour: Brown, may be mottled.
Similar Species: Lithophyllon lobata is distinguished from L. undulatum by having a prominent central corallite.
Habitat: Reef environments and rocky foreshores.
Abundance: Usually uncommon.
Taxonomic Note: Considered a synonym of Lithophyllon undulatum by Hoeksema (1989a), and renamed as Lithophyllon ranjithi by Ditlev (2003), we consider the original description by van der Horst to fit this species.
Taxonomic References: Veron (2000a);
Identification Guides: Nishihira and Veron (1995); Turak and DeVantier (2011b);
