*tubipora*

‖n. [ NL., from L. tubus tube + porus passage, pore. ] (Zool.) A genus of halcyonoids in which the skeleton, or coral (called organ-pipe coral), consists of a mass of parallel cylindrical tubes united at intervals by transverse plates. These corals are usually red or purple and form large masses. They are natives of the tropical parts of the Indian and Pacific Oceans. [ 1913 Webster ]