Atlantic Hagfish

Hagfishes live in fairly deep water where there is a soft muddy bottom into which they can burrow. They have no paired fins nor scales; their eyes are hidden under skin and they are almost blind. The surface of the skin is particularly slimy since it is copiously supplied with mucus-secreting glands. Hagfishes feed on some marine worms and crustaceans, but they are best known for attacking dead and dying fish or fish trapped in nets. Using the toothlike plates on the tongue and the single tooth in the mouth, the hagfish bores into the prey's body and eats away all its flesh and intestines, leaving only skin and bone.