Alex Mustard / Planktonic sea walnut ctenophore (Mnemiopsis mccradyi) in open water, Seven Mile Beach, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

David Shale / Comb Jelly {Bollinopsis ssp} caught with 1m ring net between 0 and 150m, comb plates, Mid-Atlantic Ridge, North Atlantic Ocean

Ingo Arndt / Ctenophore (Beroe cucumis) showing typical symmetrical combs made of cilia, Weddell Sea, Antarctica

Norbert Wu / Ctenophore (Beroe cucumis) voracious, large mouth, Arctic

Alex Mustard / 2020VISION / Comb jelly / Sea gooseberry (Pleurobrachia pileus) in open water. The feathery tentacles are used for capturing prey and can be extended behind the jellyfish or completely retracted. Loch Carron, Ross...

Juergen Freund / Creeping ctenophore / comb jelly (Coeloplana meteoris) camouflaged on seabed, North Sulawesi, Indonesia.

Eric Baccega / Luminescent Combjelly (Phylum ctenophora) in arctic waters. Floe Edge, Arctic Bay, Baffin Island, Nunavut, Canada, June.

Eric Baccega / Luminescent Combjelly (Phylum ctenophora) in arctic waters. Floe Edge, Arctic Bay, Baffin Island, Nunavut, Canada, June.

Eric Baccega / Luminescent Combjelly (Phylum ctenophora) in arctic waters. Floe Edge, Arctic Bay, Baffin Island, Nunavut, Canada, June.

Juergen Freund / Starfish comb jelly (Coeloplana astericola) on seabed, Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Close up of leg of Starfish comb jelly (Coeloplana astericola) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Starfish comb jelly (Coeloplana astericola) Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Close up of leg of Starfish comb jelly (Coeloplana astericola) Misool, Raja Ampat, West Papua, Indonesia.

Hiroya Minakuchi / Comb Jelly (Callianira antarctica) showing bioluminescence, Antarctica

Suzi Eszterhas / Comb Jelly (Beroe) Monterey Bay Aquarium, California, USA, Captive

David Shale / Bathypelagic comb jelly (Ctenophora) from benthic boundary layer. Found attached to seafloor by adhesive tentacles. Mid atlantic ridge, June 2010

David Shale / Bathypelagic cyddipid ctenophore / comb jelly (Ctenophora) from benthic boundary layer, mid Atlantic ridge, June 2010

David Shale / Bathypelagic cyddipid ctenophore / comb jelly (Ctenophora) from benthic boundary layer, mid Atlantic ridge, June 2010

David Shale / Bathypelagic comb jelly (Ctenophora) from benthic boundary layer. Found attached to seafloor by adhesive tentacles, Mid atlantic ridge, June 2010

David Shale / Bathypelagic comb jelly (Ctenophora) from benthic boundary layer. Found attached to seafloor by adhesive tentacles. Mid atlantic ridge, June 2010

Richard Herrmann / Comb Jelly (Leucothea pulchra), San Diego, California

Richard Herrmann / Ctenophore (Beroe forskalii), Nine Mile Bank, San Diego, California

Richard Herrmann / Ctenophore (Beroe forskalii), Nine Mile Bank, San Diego, California

Richard Herrmann / Ctenophore (Beroe forskalii), Nine Mile Bank, San Diego, California

Juergen Freund / Comb jelly {Ctenophora} Lizard Island, Queensland, Australia, April 2008

Juergen Freund / Comb jelly {Ctenophora} close up of reflections, Lizard Island, Queensland, Australia, April 2008

David Shale / Comb jelly (Beroe sp) Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Comb Jelly {Bollinopsis ssp} caught with 1m ring net between 0 and 150m, Mid-Atlantic Ridge, North Atlantic Ocean

Richard Herrmann / Comb Jelly (Leucothea sp), San Diego, California

Richard Herrmann / Comb Jelly (Leucothea sp), San Diego, California

Fred Bavendam / Mottled Creeping Ctenophore (Coeloplana astericola) group on Orange Starfish (Echinaster luzonicus), Bali, Indonesia

Norbert Wu / Ctenophore (Beroe cucumis) a Comb Jelly, Arctic Ocean

Norbert Wu / Ctenophore (Beroe cucumis) a Comb Jelly, Arctic Ocean

Georgette Douwma / Comb jellies (Coeloplana astericola) on a Luzon / orange starfish (Echinaster luzonicus). Rinca, Indonesia.

Georgette Douwma / Comb jelly (Coeloplana astericola) on a Luzon / orange starfish (Echinaster luzonicus). Rinca, Indonesia.

GEORGETTE DOUWMA / Harlequin shrimp (Hymenocera elegans) feeding on starfish prey (Note the comb jelly on claw). Bali, Indonesia

GEORGETTE DOUWMA / Harlequin shrimp (Hymenocera elegans) with comb jelly on claw, Bali, Indonesia

Scott Leslie / Sea Gooseberry (Pleurobrachia pileus) comb jelly showing bioluminescence, Nova Scotia, Canada

Scott Leslie / Sea Gooseberry (Pleurobrachia pileus) comb jelly with tentacles extended for feeding, Nova Scotia, Canada

Scott Leslie / Comb Jelly (Mertensia ovum) with tentacles spread to catch prey, Nova Scotia, Canada

Scott Leslie / Comb Jelly (Mertensia ovum) with tentacles spread to catch prey, Nova Scotia, Canada

Scott Leslie / Comb Jelly (Mertensia ovum) with tentacles spread to catch prey, Nova Scotia, Canada

Scott Leslie / Comb Jelly (Mertensia ovum) with tentacles spread to catch prey, Nova Scotia, Canada

Luciano Candisani / Comb Jelly (Beroe sp), Laje De Santos, Brazil

Hiroya Minakuchi / Comb Jelly (Bolinopsis mikado) exhibiting bioluminescence, aquarium, Japan

Hiroya Minakuchi / Comb Jelly (Bolinopsis mikado) exhibiting bioluminescence, aquarium, Japan

Hiroya Minakuchi / Comb Jelly (Bolinopsis mikado) exhibiting bioluminescence, aquarium, Japan

David Shale / Comb jelly {Ctenophora} Gulf of Maine, Atlantic

David Shale / Red Cydippid comb jelly {Ctenophora} mesopelagic, Gulf of Maine, Atlantic

David Shale / Red Cydippid comb jelly {Ctenophora} mesopelagic, Gulf of Maine, Atlantic

David Shale / Red Cydippid comb jelly {Ctenophora} mesopelagic, Gulf of Maine, Atlantic

Juergen Freund / Comb jelly underwater (Ctenophora) Indo-Pacific

SINCLAIR STAMMERS / Comb jelly with syphons visible (Beroe ovata) plankton species, France

Ingo Arndt / Sea Gooseberry (Pleurobrachia pileus) one centimeter, Helgoland, Germany

Ingo Arndt / Ctenophore (Beroe cucumis) showing typical symmetrical combs made of cilia, Weddell Sea, Antarctica

Ingo Arndt / Comb Jelly (Callianira antarctica) eating Antarctic Krill showing bioluminescent cells, Weddell Sea, Antarctica

Ingo Arndt / Comb Jelly (Callianira antarctica) eating Antarctic Krill, Weddell Sea, Antarctica

Ingo Arndt / Comb Jelly (Callianira antarctica) eating Antarctic Krill, Weddell Sea, Antarctica

Ingo Arndt / Comb Jelly (Callianira antarctica) eating Antarctic Krill, Weddell Sea, Antarctica

Ingo Arndt / Comb Jelly (Callianira antarctica) showing bioluminescent cells, Weddell Sea, Antarctica

Ingo Arndt / Comb Jelly (Callianira antarctica) showing bioluminescent cells, Weddell Sea, Antarctica

Ingo Arndt / Ctenophore (Beroe cucumis) detail showing rows of bioluminescent cilia that make up its combs, Weddell Sea, Antarctica

Ingo Arndt / Ctenophore (Beroe cucumis) showing mouth, Weddell Sea, Antarctica

Ingo Arndt / Ctenophore (Beroe cucumis) detail showing typical symmetrical combs made of cilia and bioluminescent cells, Weddell Sea, Antarctica

David Shale / (Bolinopsis infundibulum) mesopelagic ctenophore / comb jelly, deep sea Atlantic oceandeep sea

David Shale / (Bolinopsis infundibulum) mesopelagic ctenophore / comb jelly, deep sea Atlantic oceandeep sea

David Shale / Comb jelly (Beroe cucumis), deep sea Atlantic ocean

David Shale / (Bolinopsis infundibulum) mesopelagic comb jelly, deep sea Atlantic oceandeep sea

David Shale / Comb jelly (Beroe cucumis), deep sea Atlantic ocean

David Shale / Comb plates of (Beroe sp) comb jelly showing metachronal rhythm, deep sea Atlantic oceandeep sea

David Shale / Comb jelly (Pleurobrachia sp), deep sea Atlantic ocean

David Shale / Comb jelly (Beroe cucumis), deep sea Atlantic ocean

David Shale / Comb jelly (Pleurobrachia sp), deep sea Atlantic ocean

David Shale / Comb jelly (Euplokamis sp), deep sea Atlantic ocean

David Shale / Comb plates of (Beroe sp) comb jelly showing metachronal rhythm, deep sea Atlantic oceandeep sea

David Shale / Close up of Black-mouth red cydippid ctenophore (comb jelly) W Atlantic.

David Shale / Black-gut red cydippid ctenophore (comb jelly) with extended tentacles, W Atlantic.

David Shale / Deep sea Comb jelly {Beroe cucumis} from 800metres depth

David Shale / Deep sea Comb jelly {Beroe cucumis} from 800m depth

David Shale / Deep sea Comb jelly {Beroe cucumis} from 800metres depth

David Shale / {Bolinopsis infundibulum} ctenophore (comb jelly) Atlantic. Deep sea species

David Shale / Deep sea Comb jelly {Beroe cucumis} from 800m depth

David Shale / Deep sea Comb jelly {Beroe cucumis} from 800m depth

David Shale / Extended tentacle of Black-gut red cydippid ctenophore (comb jelly) W

David Shale / Deep sea Comb jelly {Beroe cucumis} from 800m depth

David Shale / Black-gut red cydippid ctenophore (comb jelly) with extended tentacles, W Atlantic.

David Shale / Black-mouth red cydippid ctenophore (comb jelly) with extended tentacles, W Atlantic.

David Shale / {Bolinopsis infundibulum} ctenophore (comb jelly) Atlantic. Deep sea species

David Shale / {Bolinopsis infundibulum} ctenophore (comb jelly) Atlantic. Deep sea species

David Shale / Black-gut red cydippid ctenophore (comb jelly) with extended tentacles, W Atlantic.

Hiroya Minakuchi / Comb Jelly (Mnemiopsis sp) exhibiting bioluminescence

Hiroya Minakuchi / Comb Jelly (Mnemiopsis sp) exhibiting bioluminescence

Solvin Zankl / Comb jelly {Leucothea pulchra}

Chris Newbert / Ctenophore (Hormiphora palmata) exhibiting bioluminescence, Hawaii

Flip Nicklin / Comb Jelly (Callianira antarctica) showing bioluminescent cells, Weddell Sea, Antarctica

Norbert Wu / Comb Jelly (Mertensia ovum) feeds on krill; digests it rapidly within transparent gut