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Milne-Edwards and Haime, 1848

Description
Solitary, free Caryophylliidae; edge-zone of polyp completely covering corallum; corallum of adults wedge-shaped and laterally compressed; columella well-developed - lamellar, pali absent. Juveniles may lack columella their shape is often different from adults, usually subcylindrical and not laterally compressed. Asexual reproduction by transverse fission is common.

Type-species: Sphenotrochus crispus (Lamarck, 1816)

Genus Sphenotrochus