Capitulum: A short, thin-walled distal section of column above the sphincter. The capitulum is only present in anemones which can be externally divided into such regions.
Image of a Capitulum: (species names are linked to the Hexacorallian database)
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Species: Edwardsia pudica Caption: 4. *Edwardsia rakaiyæ*, n. sp. The animal has burst owing to excessive contraction in spirit, and the inner wall of the introverted part of the scapus is exposed in the upper part of the figure. |