General Description

Colony of individual polyps (hydranths) joined by root-like network of tubular stolons at the base. Colony shape is feather-like (pinnate). Colour: pale greyish. Up to 5 cm high.


This is one of the most spectacular and graceful hydroids in southern Australia. They are rarely seen because they often attach to the underside of ledges. Their colonies grow late summer to winter, and become fertile in winter.


Southern Australia.


Subtidal, on rocky substrates, often under ledges.

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