Georgette Douwma / Kaleidoscopic image of Basket star (Astroboa nuda) commonly found at night with its rays fully extended into areas of current. It removes plankton from the water column by filter feeding. During the d...

Georgette Douwma / Kaleidoscopic image of Basket star (Astroboa nuda) commonly found at night with its rays fully extended into areas of current. It removes plankton from the water column by filter feeding. During the d...

Linda Pitkin / Basket star (Astroboa nuda) close up of arm at night, The Barge (wreck), near Bluff Point, Gubal I., Gulf of Suez, Egypt, Red Sea.

Alex Mustard / Basket star (Gorgonocephalus eucnemis) climbs up on red soft coral (Eunephthya rubiformis) to feed during daylight. Browning Pass, Port Hardy, Vancouver Island, British Columbia, Canada. Queen Charlot...

Sue Daly / Basket star (Gogonocepahlus caputmedusae) Trondheimsfjord, Norway, July.

Sue Daly / Basket star (Gogonocepahlus caputmedusae) Trondheimsfjord, Norway, July.

Franco Banfi / Basketstar (Gorgonocephalus eucnemis), Alaska, North Pacific Ocean.

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...

Franco Banfi / Basket star (Gorgonocephalus eucnemis) and Sea strawberry (Gersemia rubiformis) Vancouver Island, British Columbia, Canada, Pacific Ocean

Pascal Kobeh / Basket star (Astroboa nuda) at night, New Caledonia, Pacific Ocean.

Pascal Kobeh / Basket star (Gorgonocephalus eucnemis), Alaska, USA, Gulf of Alaska. Pacific ocean.

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.

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

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

Claudio Contreras / Great basket star (Astrophyton muricatum) Banco Chinchorro Biosphere Reserve, Caribbean Sea, Mexico, May

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.

Shane Gross / Basket star (Gorgonocephalus eucnemis) surrounded by Orange sea cucumbers (Cucumaria miniata) on seabed, Browning Pass, Vancouver Island, British Columbia, Canada, Pacific Ocean.

Georgette Douwma / Composite image of echinoderms on black background. Top row from left: Featherstar (Crinoidea), Luzon starfish (Echinaster luzonicus), Mosaic cushion star (Halityle regularis). -Central row from...

Shane Gross / Basket star (Gorgonocephalus eucnemis) with arms open for feeding, Browning Pass, Queen Charlotte Strait, Vancouver Island, British Columbia, Canada.

Pascal Kobeh / Giant basket star (Astrophytonmuricatum) on a Common or Gorgonian seafan (Gorgonia ventalina) at night, Gardens of the Queen National Park, Cuba. Caribbean Sea.

Solvin Zankl / Basket stars (Gorgonocephalus caputmedusae) climbing Fan coral (Paramuricea placomus) to position themselves in water current, Trondheimsfjord, Norway.

Solvin Zankl / Basket stars (Gorgonocephalus caputmedusae) climbing Fan coral (Paramuricea placomus) to position themselves in water current, Trondheimsfjord, Norway.

Solvin Zankl / Fan coral (Paramuricea placomus) with Baskett stars (Gorgonocephalus caputmedusae) on top and an Edible sea urchin (Echinus esculentus) in the background, Trondheimsfjord, Norway, December.

David Hall / Northern basket stars (Gorgonocephalus eucnemis), branching and staghorn bryozoans, calcareous tubeworms, snails and barnacles, Baranof, Alaska, USA. August.

David Hall / Northern Basket Stars (Gorgonocephalus eucnemis) and Crimson Anemones (Cribrinopsis fernaldi), Baranof, Sitka, Alaska. August.

David Hall / Northern Basket Star (Gorgonocephalus eucnemis), Gambier Bay, Alaska. August.

David Hall / Northern basket star (Gorgonocephalus eucnemis) Slingsby Channel, British Columbia, Canada. May.

David Hall / Northern basket star (Gorgonocephalus eucnemis) Slingsby Channel, British Columbia, Canada. May.