Gulper Eel

The gulper eel, often called the pelican eel, is a deep-sea fish with an oversized mouth and a slender, tapering body. An expandable pouch beneath the jaws gives the head a distinctive outline. It takes animal prey in dark ocean waters. The common name is also used for some related deep-sea eels, so identity should be checked when comparing animals. Small eyes and a long tail contrast with the large feeding apparatus. Observations from remotely operated vehicles reveal behavior that is difficult to study from the surface.