The firefly squid (watasenia scintillans), also called the sparkling enope squid has special deep-blue light producing organs called photophores - by flashing the lights on and off, it can attract prey before trapping it with its tentacles. It's also only cephalopod species which have color vision!
Now we come to the section featuring deep sea beauties. Hold on to your breakfast, these guys are uglier than the current American stock market situation.
The viperfish (chauliodus sloani) can grow to over half a meter in size... which is simply NOT a comforting thought. Again, it attracts its prey with luminescent spots running from throat to tail... and attracts curious humans, who can not refrain from sticking a finger in its jaws to see what happens.
Are you ready for another nauseating shot? We warned you... Here is an angler fish - with its stomach in its mouth (decompression caused the stomach to invert).
A hatchetfish has extremely thin body, resembling the blade of a hatchet, and tubular large eyes that are permanently fixed looking upwards - this helps them to search for food falling from above. It also gives them a psychotic look, with eyes rolled up and stuck there.