About Euphyllia glabrescens (Chamisso & Eysenhardt, 1821)
Euphyllia glabrescens is a colonial coral that forms corallites in a phaceloid arrangement. Each corallite measures 20–30 millimeters (0.79–1.18 inches) in diameter, and corallites are spaced 15–30 millimeters (0.59–1.18 inches) apart. The corallite walls are thin and have sharp edges. Its polyps bear large tubular tentacles that end in knob-like tips. This coral can come in a variety of colors, and is often bicolored, with contrasting colors on its tentacles and polyp tips. This species has a wide distribution. It is rare in the Red Sea and the Gulf of Aden, and uncommon across the northern Indian Ocean, Persian Gulf, central Indo-Pacific, Australia, Southeast Asia, southern Japan, the East China Sea, Micronesia, and American Samoa. It occurs at depths between 1 and 35 meters (3.3 to 114.8 ft), and can be found in a wide range of reef environments.
