Pelican eel

 pelican eels (pell-i-kin-eel)  are also known as gulper eel or umbrella mouth gulper eel.  In the deep, it is wise to grab food if it comes near.  The gulper, or pelican eel, has very wide jaws and a stretchy mouth that can fit prey far larger than itself.  Some gulpers have a glowing tip at the end of its tail  for attracting its prey.  The pelican eel 's most notable feature is its enormous mouth, much larger than its body.  The mouth is loosely-hinged, and can be opened wide enough to swallow a fish much larger than itself.  The pouch-like lower jaw resembles that of a pelican, hence its name.  Pelican eels are also known as saccopharyngiformes.  The pelican eel grows to about 1 metre (3 .3 ft) in length and is found in all tropical and subtropical seas at depths ranging from 900 to 8, 000 meters (3, 000 to 26,200 feet.)  The eel uses a whip-like tail for movement.  The end of the tail bears a complex organ with numerous tentacles, which glows pink and gives off occasional bright red flashes.