gulper eel
or gulper fish
n (Animals) any deep-sea eel-like fish of the genera Eurypharynx and Saccopharynx and order Lyomeri, having the ability to swallow large prey
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014