Cyema

Cyema atrum is a species of deep-water bobtail snipe eel in the family Cyematidae. It is the only member of its genus Cyema. It is found globally at depths of 330 to 5,100 m (1,080 to 16,730 ft). Common names include the bobtail eel, snipe eel, scissorjaw eel, and arrow eel. It grows to a possible length of 16 cm (6.3 in), based on the estimated size for other bobtail eels. There is not much information about this enigmatic fish, because it is so rare and has been encountered a small number of times, but its diet may be composed of tiny fish larvae, zooplankton, copepods, amphipods, sea snow, and tiny krill. Instead of gobbling them up, the eel uses the comb-like teeth to swipe the food from the water column by slashing the head to the sides.