David Shale / Head-on view of Spothead lanternfish {Diaphus metopocampus} from between 500 and 800m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Head-on view of Spothead lanternfish {Diaphus metopocampus} from between 500 and 800m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Close-up of ventral photophores on body of Viperfish {Chauliodus sloani} Atlantic

Solvin Zankl / Bioluminescent Firefly squid (Watasenia scintillans) emits intense flashes of light from three tiny luminous organs (photophores) that are located at the tip of each of a pair of ventral arms, as wel...

Solvin Zankl / Bioluminescent Firefly squid (Watasenia scintillans) emitting intense flashes of light from three tiny luminous organs (photophores) that are located at the tip of each of a pair of ventral arms, as...

Solvin Zankl / Deep sea fish (Gigantactis vanhoeffeni) with enlarged first filament of dorsal fin, called the illicium, with bioluminescent photophore / lure at its end. From Atlantic Ocean off Cape Verde. Captive.

David Shale / Head-on view of Spothead lanternfish {Diaphus metopocampus} from between 500 and 800m, Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Ventral view with photophore of Lanternfish {Lampadena speculiguera} Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Dorsal view with photophore of Lanternfish {Lampadena speculiguera} Mid-Atlantic Ridge, North Atlantic Ocean

David Shale / Deepsea octopus (Bolitaena pygmaea) Ventral photophore in the female only is an area of yellow tissue around the mouth. Produces bioluminescence, deep sea Atlantic oceandeep sea