Euphyllia cristata
Euphyllia cristata is commonly called grape coral. "E. cristata" is a kind of stony or hard coral in the family Euphylliidae; it also belongs to the genus Euphyllia in the order of Scleractinia. "E. cristata" has a wide range of distribution throughout the tropical waters of the Indo-West Pacific area with a large presence in Indonesia. However, despite this large range of distribution, "E. cristata" has a slightly lower abundance compared to other species, making them a little more uncommon to find. They are typically found in shallow waters from 1–35 meters deep. Taxonomy. "Euphyllia cristata w"as  first documented by Chevalier in 1971. "E. cristata" is a Cnidaria of the class Anthozoa and of the order of Scleractinia. Scleractinia are hard corals"." "E. cristata" live in small sized phaceloid colonies, which is a particular type of spatial formation and organisation, where corallites are elongate, distinctive tube-like, and between 20 and diameter. Distribution and Abundance. "E. cristata" has a wide range of distribution in the Indo-Western Pacific. Their range of distribution also includes the Coral Triangle and the Great Barrier Reef. Even though "E. cristata’s" distribution is diverse, it is absent from the Red Sea . "E. cristata" is found on hard substrates. In addition, they are found in a depth of 1–35 meters below the surface. Threats. The International Union for Conservation Nature and Natural Resources (IUCN) classified the Red List status of the "E. cristata" as vulnerable in 2008. In addition, many of the other Euphilids have been classified as threatened by the IUCN. There are many threats to the populations of "E. cristata". As a result of "E. cristata" being a colorful stony coral with big polyps, it has been sought after for jewelry. "E. cristata" is also faced with having to adapt  to changes in mean tide levels, changes in wave action, increases in water temperature, ocean acidification, fisheries, exposure to pollution, and erosion. These things increase the frequencies of bleaching and increase the susceptibility of the coral to disease.