Chordata · chordates

Atlantic hagfish

Myxine glutinosa

Myxinidae · hagfishesIUCN: Least Concern
Atlantic hagfish
Photo: Charles Keith · Public domain · Wikimedia Commons · resized

A jawless, eel-like scavenger that burrows into carcasses on the seafloor.

Fun factIn seconds it can fill the water around it with slime, then ties itself in a knot to scrape the slime off.

Waters
Northeast US, Northwest Atlantic, Northeast Atlantic
Depth zone
Continental shelf, Deep sea & continental slope
Diet
Carrion & worms
Size
Up to 80 cm

Classification

Chordata › Myxini › Myxinidae

  1. Kingdom Animalia animals
    • Many-celled organisms that eat other living things for energy (heterotrophs)
    • Cells have no cell walls
    • Most can move at some stage of life
  2. Clade Bilateria bilateral animals
    • Body has a left and right side that mirror each other (bilateral symmetry)
    • Head end with concentrated nerves; three tissue layers
    • Includes about 99% of all living animal species
  3. Clade Deuterostomia deuterostomes
    • In the embryo, the first opening becomes the anus and the mouth forms second
    • Includes echinoderms and chordates
  4. Phylum Chordata chordates
    • At some stage of life: a stiffening rod along the back (notochord)
    • A hollow nerve cord along the back (dorsal)
    • Slits in the throat (pharyngeal slits) and a tail past the anus
  5. Subphylum Vertebrata vertebrates
    • A skull (cranium) protecting a brain
    • Backbone or similar support around the nerve cord
    • Includes fishes, amphibians, reptiles, birds, and mammals
  6. Class Myxini hagfishes
    • Hagfish: no jaws and no true backbone
    • Eel-like body with slime glands along the sides
    • Feed by rasping with tooth-like plates on the tongue
  7. Family Myxinidae hagfishes
    • Hagfish scavenge carcasses on the seafloor
  8. Genus Myxine
    • Species in the same genus are very close relatives and often look alike.
  9. Species Myxine glutinosa Atlantic hagfish