Actinodendron plumosum Haddon, 1898
Actiniaria
Found associated with: Cirsotrema cf multiperforata, C. varicosum, Epitonium pyramidalis.

Photograph by: A. Gittenberger

Characterization (by Bas Kokshoorn): Oral disc 5-20 cm in diameter. Tentacles 10-20 cm long, branched although not as dense as A. arboreum. Stem with axial lines, not sticky.