Xenia (genus)
''Xenia'' is a genus of photosynthetic soft marine coral in the family Xeniidae. They resemble a mushroom, with "arms" coming out from the top that end in many-fingered "hands". It is unique among corals because of its ability to use its "hands" to "pulse" or push water away from the colony in a constant, grabbing motion. Common names include fast-pulse Xenia. Species of Xenia are sometimes referred to as pulse corals. Species The World Register of Marine Species lists the following species: *''Xenia actuosa'' Verseveldt & Tursch, 1979 *'' Xenia amparoi'' Roxas, 1933 *'' Xenia antarctica'' Kükenthal, 1902 *''Xenia bauiana'' May, 1899 *'' Xenia crassa'' Schenk, 1896 *''Xenia crispitentaculata'' Verseveldt, 1977 *'' Xenia cylindrica'' Roxas, 1933 *''Xenia danae'' Verrill, 1869 *''Xenia dayi'' Tixier-Durivault, 1959 *''Xenia delicata'' Roxas, 1933 *''Xenia depressa'' Kükenthal, 1909 *'' Xenia distorta'' Tixier-Durivault, 1966 *''Xenia elongata'' Dana, 1846 *''Xenia fimbriata'' Uti ...
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Jean-Baptiste Lamarck
Jean-Baptiste Pierre Antoine de Monet, chevalier de Lamarck (1 August 1744 – 18 December 1829), often known simply as Lamarck (; ), was a French naturalist, biologist, academic, and soldier. He was an early proponent of the idea that biological evolution occurred and proceeded in accordance with natural laws. Lamarck fought in the Seven Years' War against Prussia, and was awarded a commission for bravery on the battlefield. Posted to Monaco, Lamarck became interested in natural history and resolved to study medicine. Packard (1901), p. 15. He retired from the army after being injured in 1766, and returned to his medical s