Madracis

Madracis is a genus of cnidarians belonging to the family Pocilloporidae. The genus has a cosmopolitan distribution.

Description
Madracis contains deep water azooxanthellate colonial species. They have a diverse array of growth forms, including fragile branching, dense ramose coralla, massive columnar, nodular and encrusting forms.

Species
The following species are recognised:


 * Madracis asanoi Yabe & Sugiyama, 1936
 * Madracis asperula Milne Edwards & Haime, 1849
 * Madracis auretenra Locke, Weil & Coates, 2007
 * Madracis brueggemanni (Ridley, 1881)
 * Madracis carmabi Vermeij, Diekmann & Bak, 2003
 * † Madracis crescentensis Durham, 1942
 * Madracis decactis (Lyman, 1859)
 * † Madracis densa Budd, 1992
 * † Madracis dodecachora Squires, 1958
 * † Madracis duncani Wells, 1945
 * Madracis formosa Wells, 1973
 * Madracis fragilis Neves & Johnsson, 2009
 * † Madracis ganei Vaughan, 1900
 * † Madracis gregorioi Vaughan, 1900
 * Madracis hellana Milne Edwards & Haime, 1850
 * † Madracis herrecki Wells, 1934
 * Madracis interjecta Marenzeller, 1907
 * † Madracis johnsoni Vaughan, 1900
 * † Madracis johnwellsi Frost & Langenheim, 1974
 * Madracis kauaiensis Vaughan, 1907
 * Madracis kirbyi Veron & Pichon, 1976
 * Madracis myriaster (Milne Edwards & Haime, 1850)
 * Madracis pharensis (Heller, 1868)
 * Madracis profunda Zibrowius, 1980
 * † Madracis senaria Wells, 1973
 * † Madracis stewarti Durham, 1942
 * † Madracis vaughani Wells, 1941