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.

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

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

Pascal Kobeh / Head of a Giant anglerfish / frogfish (Antennarius commersoni / commerson), Sulu sea, Philippines

Alex Mustard / Giant frogfish (Antennarius commersoni). Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.

Alex Mustard / Diver with Yellow giant frogfish (Antennarius commersoni) on a coral reef. Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea. Model released.

David Fleetham / Commerson's frogfish (Antennarius commersoni) pair, Maui, Hawaii.

David Fleetham / Parasitic isopod (Creniola breviceps) attached to Commerson's / Giant frogfish (Antennarius commerson), Hawaii.

David Fleetham / Giant / Commerson's Frogfish (Antennarius commerson) pair on coral reef, Hawaii.