Colonies are massive and are primarily characterised by highly meandering valleys, often with steep walls. Corallites are distributed largely independently of the valleys. Petaloid primary septa are exsert giving the colony surface a rough appearance.
Grey, brown or cream.
Restricted to reef habitats exposed to strong wave action.
Source reference: Veron (2000). Taxonomic references: van der Horst (1921), Veron and Pichon (1976). Additional identification guides: Maragos (1977), Veron (1986), Nishihira and Veron (1995).
displaying probable distribution of species. Points indicate recorded sightings from OBIS.
Psammocora nierstraszi.Hawaii.Flat surface of a large colony.Jim Maragos.