Family Myxinidae refers to a group of marine animals that are commonly known as hagfishes. These eel-like creatures are found in the deep, cold waters of the world's oceans. Some of the synonyms for this family of animals include slime eels, Hagfishes, and Isopteraspis. Hagfish are interesting creatures that are known for their bizarre feeding habits. They have a unique ability to produce slime that helps them escape from predators and capture their prey. This family of animals is an important part of the ocean's ecosystem and plays a vital role in maintaining the balance of marine life.