Myxine glutinosa, also known as the Atlantic hagfish, is a type of jawless fish belonging to the class Myxini.

Plenty of discussions on the evolutionary information and the morphology of the Myxine Glutinosa eyes, some scientists were trying to compare it with the retina of lampreys.

Other scientists have suggested that the Atlantic Hagfish may have possessed more complex eyes that regressed due to the environmental factors like little to no light or the need of burrowing.

[11] Kaj Holmberg has described how each hagfish species has differentiated external appearances, and the Myxine glutinosa has an unpigmented, cornea-like window in the skin overlying the eye.

[11] The respiratory anatomy for the Myxine glutinosa is similar to other hagfish, with a single, median nostril at the tip of the snout surrounded by two pairs of barbels.

Epidermal mucus helps the prevention of pathogen and is produced all the time while the extruded slime is only observed during feeding, provocation or stress.

The glands inside the hagfish’s body excrete "pre-slime", which are protein molecules that can expand in volume when reacting with water.

[16] This slime is vital to the survival of the Atlantic hagfish as it can distract and affect predators’ respiratory system, reducing the force of squeezing into big food.

This is also related to how they can form the body knot- as the previous part indicates, the knot can be forcefully propagated in both directions to escape from predators or gain leverage for tearing apart large chunks of food.

This leads to the continuous study of hagfish locomotion and keep improving our understanding of the collective diversity in elongate animals.

This recent data provides important information for the East Coast fisheries management department as there aren't many policies regarding fishing on these hagfish.

[20] The Atlantic hagfish, M. glutinosa, can be found within the Gulf of Maine at depths greater than 50, with soft bottom sediments.

The environment they prefer usually contains a high volume of clay, silt, sand or gravel and this explains why we usually find a muddy and flocculent layer covering these substrata.

This leads to the Atlantic hagfish’s adaptations of the hypoxic environment, they have a larger blood volume, about 3 times that of other fishes.

[21] Its notochord is also studied a lot due to the unique characteristics on the unusual biochemical, molecular and biomechanical properties.

Some reasons for the unique kinematic characteristics of the Atlantic hagfish swimming are also related to its notochord physical properties.