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

Alex Mustard / Ctenophore (Bolinopsis sp.) in a sea loch, with sun. Loch Fyne, Scotland, Great Britain.

Doug Perrine / Comb jelly / sea gooseberry (Hormiphora palmata) diffracting light through cilia (fine hair-like structures) on the comb rows, Kailua Kona, Hawaii, USA.

Doug Perrine / Close-up of Ctenes or Comb plates (Eurhamphaea vexilligera) a translucent gelatinous organism with colors produced by the diffraction of light through cilia. Kailua Kona, Hawaii, USA.

Jordi Chias / Fin whale (Balaenoptera physalus) with ctenophore in front of its mouth, south Barcelona coast, Spain, Mediterranean Sea

Graham Eaton / Comb jellyfish (Bolinopsis infundibulum) in shallow water and kelp, Bersoch, Cardigan Bay, Wales, UK July

Franco Banfi / Venus girdle comb jelly (Cestum veneris) San Benedicto island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico

Franco Banfi / Comb jelly (Ctenophora) Roca Partida close to San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Comb jelly (Ctenophora) Roca Partida close to San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Alex Mustard / Amphipod travelling on sea gooseberry (Ctenophora) Browning Pass, Vancouver Island, British Columbia, Canada. North East Pacific Ocean.

Pascal Kobeh / Comb jelly (Lobata) in open water, Maldives. Indian Ocean.

Pascal Kobeh / Comb jelly (Lobata) in open water, Maldives. Indian Ocean.

Alex Hyde / Sample of marine flora collected with a plankton net, including Sea-gooseberry (Pleurobrchia pileus) and Rathkea sp. Isle of Mull, Scotland, UK. June.

Pascal Kobeh / Ctenophora / Comb jelly (Beroe mitrata) under the ice, Baffin island, Canada. Arctic ocean.

Solvin Zankl / Amphipod (Amphipoda) riding on comb jelly (Hormiphora cucumis), Gullmarsfjorden, Kattegat, Baltic Sea, Sweden

Michele Westmorland / Ctenophores comb jelly (species unidentified) Galapagos Islands.

Michele Westmorland / Unidentified ctenophores floating in open ocean. Galapagos Islands.

Christophe Courteau / Lesser gooseberry sea squirts {Distomus variolosus} Brittany France

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...

Sue Daly / Lesser Gooseberry Sea Squirt (Distomus variolosus). Channel Islands, UK, August.

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.

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

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

GEORGETTE DOUWMA / Warty starfish (Echinaster callosus) on coral reef, with a few Comb jellies (Coeloplana astericola) Misool, Raja Ampat, West Papua, Indonesia

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

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.

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

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

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

Jeff Rotman / Sea Gooseberry {Pleurobrachia pileus} at night, Atlantic, USA. Comb jelly / Ctenophora

David Fleetham / Tiny amphipod riding on a sea gooseberry (Pleurobrachia bachei), also known as a comb jelly, British Columbia, Canada.

David Fleetham / Unknown species of fish in larval stage, hiding behind a ctenophore (comb jelly), Indonesia.

David Fleetham / Lobate comb jelly (Ocyropsis maculata), Indonesia.

David Fleetham / Comb jelly (Ctenophora), Hawaii.

David Fleetham / Lobate comb jelly, Hawaii.

David Fleetham / Lobate comb jelly, Hawaii.

Luis Quinta / Comb jelly (Bolinopsis sp.) portrait, Portugal, Atlantic Ocean.

Luis Quinta / Comb jelly (Bolinopsis sp.) portrait, Portugal, Atlantic Ocean.

Luis Quinta / Comb jelly (Bolinopsis sp.) feeding on another Comb jelly (Pleurobrachia sp), Portugal, Atlantic Ocean.

Alex Mustard / Comb jelly (Ctenophora) drifting in open ocean at night, Bitung, North Sulawesi, Indonesia, Lembeh Strait.

David Fleetham / Lobate comb jelly (Ocyropsis maculata) floating through open water, Indonesia, Pacific Ocean.

SCOTLAND: The Big Picture / A bloom of Sea goosberries (Pleurobrachia pileus), Birsay, Shetland, Scotland, North Atlantic Ocean, UK.

Tony Wu / Comb jelly (Beroe cucumis) showing distinguishing row of branched papillae in the form of a figure-8 at the aboral pole, Hokkaido, Japan, Pacific Ocean.

Alex Mustard / Pink Comb jelly (Beroe cucumis) with amphipod hitchikers floats through sunlit water, Eyemouth, Scotland, UK, North Sea.

Magnus Lundgren / Venus girdle (Cestum veneris) a large comb jelly in the family Cestidae. This one 50 cm long. Balayan Bay from Anilao,, Mabini, Batangas, the Philippines.

Magnus Lundgren / Unidentified comb jelly (Ctenophora) Balayan Bay, off Anilao, Batangas, Philippines, Pacific Ocean

Magnus Lundgren / Comb jelly (Ocyropsis fusca) Balayan Bay, off Anilao, Batangas, Philippines, Pacific Ocean.

Pascal Kobeh / Venus girdle cnetophore (Cestum veneris) in the open water, Revillagigedo islands, Mexico. Pacific Ocean.

Pascal Kobeh / Ctenophora comb jelly (Beroe cucumis) under the ice Russia. White Sea.

Pascal Kobeh / Ctenophora comb jelly (possibly Dryodorglandiformis) under the ice Russia. White Sea.