Class Anthozoa
lack medusa stage entirely (polyp forms only)
mouth with a tubular pharynx that projects inward into the gut
large gut cavity divided by mesenteries that radiate inwards from the body wall
gonads endodermal, borne on the mesenteries
hexamerous (6-part) or octamerous (8-part) radial symmetry or biradial (modified radial symmetry that limits the number of planes that can divide the body into equal halves
includes sea anemones, “true” stony corals, sea fans, sea pens, organ pipe coral, precious black coral, & zoanthids