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DescriptionA feather-like hydroid with central main stem and numerous side branches arising in a flat plane. The side branches are composed of separate joints, one joint bearing a hydrotheca and defensive nematothecae alternates with a shorter joint bearing only nematophores. The gonothecae are spherical, borne sparsely along the central region of the colony. Typically to 50mm in height, smaller and more delicate than Kirchenpaueria pinnata.