David Shale / Head of female Anglerfish {Echiostoma barbatum} Deepsea species

David Hall / Deepwater frogfish (Nudiantennarius subteres). Pantar, Alor Archipelago, Indonesia.

David Fleetham / Painted frogfish (Antennarius pictus) with first dorsal spine and lure extended to attract prey. Dumaguete, Philippines.

Solvin Zankl / Bioluminescent anglerfish (Cryptopsaras couesi) backlit, deep sea fish from Atlantic Ocean off Cape Verde. Captive.

Solvin Zankl / Bioluminescent anglerfish (Cryptopsaras couesi) deep sea fish found off the coast of Cape Verde, Atlantic Ocean. Captive.

Solvin Zankl / Bioluminescent anglerfish (Cryptopsaras couesi), deep sea fish from, Atlantic Ocean off Cape Verde. Captive.

Solvin Zankl / Bioluminescent anglerfish (Cryptopsaras couesi) backlit, deep sea species, Atlantic Ocean off Cape Verde. Captive.

Doug Perrine / Live deep-sea anglerfish / black seadevil (Diceratias pileatus) captive, showing bioluminescent lure and razor sharp teeth, specimen brought up from a depth of 3,300 feet (1000m) in a water intake pi...

Doug Perrine / Live deep-sea anglerfish / black seadevil (Diceratias pileatus) captive, showing bioluminescent lure and razor sharp teeth, specimen brought up from a depth of 3,300 feet (1000m) in a water intake pi...

Doug Perrine / Live deep-sea anglerfish / black seadevil (Diceratias pileatus) captive, showing bioluminescent lure and razor sharp teeth, specimen brought up from a depth of 3,300 feet (1000m) in a water intake pi...

Doug Perrine / Close up of mouth of Deep-sea anglerfish / black seadevil (Diceratias pileatus) captive, showing needle-sharp teeth; specimen brought up from a depth of 3,300 feet (1000m) in a water intake pipe at N...

David Shale / Female Anglerfish (Himantolophus sp.) deep sea species

David Shale / Female Anglerfish - deep sea species {Melanocoetus johnsoni}

Solvin Zankl / Murrays abyssal anglerfish (Melanocetus murrayi) head portrait, showing bioluminescent esca used to attract prey. The bioluminescence is produced by symbiotic bacteria; these bacteria are thought to e...

Tony Wu / Deep-water frogfish (Nudiantennarius subteres) swimming across ocean bottom. Celebes sea, Pacific ocean, Indonesia.

Solvin Zankl / Deep-sea anglerfish (Melanocetus johnsonii) female swimming and showing teeth. Captive.

Solvin Zankl / Deep-sea anglerfish (Melanocetus johnsonii) female backlit swimming in the darkness. Captive.

Solvin Zankl / Bioluminescent anglerfish (Cryptopsaras couesi), deep sea fish from, Atlantic Ocean off Cape Verde. Captive.