General: Most have two large polyps, but they are seen occasionally with only one.
Habitat description: Benthic soft sediment and lava fields with ponded sediment.
Consulting taxonomist: Gary Williams, California Academy of Sciences.
ReferencesEncyclopedia of Life
Tree of Life
World Register of Marine Species
National Center for Biotechnology Information
Citation: Bathyalcyon robustum (Versluys, 1906 ) Deep-Sea Guide (DSG) at http://dsg/mbari.org/dsg/view/concept/Bathyalcyon%20robustum. Monterey Bay Aquarium Research Institute (MBARI). Consulted on 2020-10-27.