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Actinaria :: Actinaria (n. pl.) A large division of Anthozoa, including those which have simple tentacles and do not form stony corals. Sometimes, in a wider sense, applied to all the Anthozoa, expert the Alcyonaria, whether forming corals or not..

Pennatulacea :: Pennatulacea (n. pl.) A division of alcyonoid corals, including the seapens and related kinds. They are able to move about by means of the hollow muscular peduncle, which also serves to support them upright in the mud. See Pennatula, and Illust. under Alcyonaria..

Alcyonic :: Alcyonic (a.) Of or pertaining to the Alcyonaria.

Veretillum :: Veretillum (n.) Any one of numerous species of club-shaped, compound Alcyonaria belonging to Veretillum and allied genera, of the tribe Pennatulacea. The whole colony can move about as if it were a simple animal..

Gorgoniacea :: Gorgoniacea (n. pl.) One of the principal divisions of Alcyonaria, including those forms which have a firm and usually branched axis, covered with a porous crust, or c/nenchyma, in which the polyp cells are situated..

Alcyonoid :: Alcyonoid (a.) Like or pertaining to the Alcyonaria.

Alcyonaria :: Alcyonaria (n. pl.) One of the orders of Anthozoa. It includes the Alcyonacea, Pennatulacea, and Gorgonacea..

Alcyonium :: Alcyonium (n.) A genus of fleshy Alcyonaria, its polyps somewhat resembling flowers with eight fringed rays. The term was also formerly used for certain species of sponges..

Sclerite :: Sclerite (n.) A hard chitinous or calcareous process or corpuscle, especially a spicule of the Alcyonaria..

Alcedo :: Alcedo (n.) A genus of perching birds, including the European kingfisher (Alcedo ispida). See Halcyon..

Halcyon :: Halcyon (a.) Hence: Calm; quiet; peaceful; undisturbed; happy.

Virgularian :: Virgularian (n.) Any one of numerous species of long, slender Alcyonaria belonging to Virgularia and allied genera of the family Virgularidae. These corals are allied to the sea-pens, but have a long rodlike rhachis inclosing a slender, round or square, calcareous axis. The polyps are arranged in transverse rows or clusters along each side of the rhachis..

Umbellularia :: Umbellularia (n.) A genus of deep-sea alcyonaria consisting of a cluster of large flowerlike polyps situated at the summit of a long, slender stem which stands upright in the mud, supported by a bulbous base..

Halcyon :: Halcyon (a.) Pertaining to, or resembling, the halcyon, which was anciently said to lay her eggs in nests on or near the sea during the calm weather about the winter solstice..

Spicule :: Spicule (n.) Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria..

Sclerobase :: Sclerobase (n.) The calcareous or hornlike coral forming the central stem or axis of most compound alcyonarians; -- called also foot secretion. See Illust. under Gorgoniacea, and Coenenchyma..

Alcyon :: Alcyon (n.) See Halcyon.

Halcyonian :: Halcyonian (a.) Halcyon; calm.

Pennatula :: Pennatula (n.) Any one of numerous species of Pennatula, Pteroides, and allied genera of Alcyonaria, having a featherlike form; a sea-pen. The zooids are situated along one edge of the side branches..

Halcyonold :: Halcyonold (a. & n.) See Alcyonoid.

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