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From The Collaborative International Dictionary of English v.0.48:
Virgularian \Vir`gu*la"ri*an\, n. [From. L. virgula a small rod.] (Zool.) 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. [1913 Webster]