a pennatula

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Английский Язык - Английский Язык
seapen
pennatula
Any one of numerous species of Pennatula, Pteroides, and allied genera of Alcyonaria, having a featherlike form; a sea-pen
pennatula
type genus of the family Pennatulidae: sea pens
pennatula
The zooids are situated along one edge of the side branches