Semaeostomatida

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Semaeostomatida (Discomedusae; class Scyphozoa, subclass Scyphomedusae) An order of free medusae that are typically flat or saucer-like in shape. The angles of the square-shaped mouth are drawn out into long, frilly lobes. They are found in great numbers in coastal waters of all oceans, in all latitudes.

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