Claudio Contreras,Claudio Contreras / Crocodile Flatheadfish (Cymbacephalus beauforti), Inanuran Island, Danajon Bank, Central Visayas, Philippines, April

Pascal Kobeh / Fringe-lip flathead (Thysanophrys otaitensis) camouflaged on sand, Sulu Sea, Philippines

David Fleetham / Longsnout flathead (Thysanophrys chiltonae) buried in seabed, Indonesia.

Bert Willaert / Crocodile Flathead (Cymbacephalus beauforti), Kimbe Bay, West New Britain, Papua New Guinea

Bert Willaert / Close-up of a flathead on sea floor, Bismarck Sea, Vitu Islands, West New Britain, Papua New Guinea

Constantinos Petrinos / Giant flathead (Cymbacephalus beauforti) close up of eyel. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Giant flathead (Cymbacephalus beauforti) lying on a Finger Leather Coral (Sinularia polydactyla) Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Giant flathead (Cymbacephalus beauforti) lying on a Finger Leather Coral (Sinularia polydactyla) Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Giant flathead (Cymbacephalus beauforti) lying on a Finger Leather Coral (Sinularia polydactyla) Lembeh Strait, North Sulawesi, Indonesia.

Linda Pitkin / Crocodilefish (Cymbacephalus beauforti), resting on coral Dampier Strait, Raja Ampat, West Papua, Indonesia.

Linda Pitkin / Crocodilefish (Cymbacephalus beauforti), resting on coral Dampier Strait, Raja Ampat, West Papua, Indonesia.

Alex Mustard / Crocodilefish (Cymbacephalus beauforti) close up detail of the retractable eye-lashes, Mabul Island, Sabah, Borneo, Malaysia Celebes Sea