Alex Mustard / Giant basket star (Astrophyton muricatum) young clings to a seafan during the day (at night it will climb up to the top of the fan, unfurl and feed) East End, Grand Cayman, Cayman Islands, British Wes...

Pascal Kobeh / Giant basket star (Astrophyton muricatum) at night, Guadeloupe Island, Mexico. Caribbean.

Michele Westmorland / Giant basket star (Astrophyton muricatum) with arms extended for feeding at night. St Vincent, West-Indies, Caribbean, May.

Jurgen Freund / Detail of Giant basket star (Astrophyton muricatum) Papua New Guinea.

Jurgen Freund / Detail of Giant basket star (Astrophyton muricatum) Papua New Guinea.

Chris Newbert / Giant Basket Star (Astrophyton muricatum) juvenile on Common Sea Fan (Gorgonia ventalina), Belize

Roberto Rinaldi / Diver watching giant basket star (Astrophyton muricatum) attached to barrel sponge (Xestospongia muta) during a night dive, Bay Islands, Honduras.