Alex Mustard / Orange painted frogfish (Antennarius pictus) fishing. Here the frogfish is illuminated by a snooted strobe and the background sand lit with a red LED torch. Bitung, North Sulawesi, Indonesia. Lembeh S...

Alex Mustard / Portrait of a Giant frogfish (Antennarius commersoni) on a large Yellow elephant ear sponge (Ianthella basta). Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Alex Mustard / Warty / Clown frogfish (Antennarius maculatus) male portrait, Anilao, Batangas, Luzon, Philippines, March

Solvin Zankl / Sargassum fish (Histrio histrio) in Broad-toothed gulfweed (Sargassum fluitans) Sargassum Community. Sargasso Sea, Bermuda

Solvin Zankl / Sargassumfish (Histrio histrio) swimming near Broad-toothed gulfweed (Sargassum fluitans) Sargassum Community. Sargasso Sea, Bermuda.

Georgette Douwma / Painted Frogfish (Antennarius pictus), juvenile perched on bottle top. Rinca, Komodo National Park, Indonesia.

Juergen Freund / Baby orange Painted frogfish (Antennarius pictus) in a shell on the coral rubble. About 4mm in size. Lembeh Strait, North Sulawesi, Indonesia.

Georgette Douwma / Giant Frogfish (Antennarius commerson) on coral reef. The animal can vary greatly in colour and pattern. Bali, Indonesia, December.

Constantinos Petrinos / Giant frogfish {Antennarius commerson} on Mushroom Leather coral, Sulawesi, Indonesia

Constantinos Petrinos / Giant frogfish {Antennarius commerson} Sulawesi, Indonesia

Solvin Zankl / Giant frogfish {Antennarius commerson} Lembeh, Sulawesi, Indonesia

Solvin Zankl / Striped / hairy frogfish {Antennarius striatus} Lembeh, Sulawesi