👉 Parascylliidae are a group of marine invertebrates that inhabit the deep oceans and have been known for their unique adaptations, such as the ability to absorb oxygen from seawater through their skin. They are characterized by their large size, which is typically over 2-5 meters (7-16 feet) in length, with a streamlined body shape. Parascylliidae also have complex skeletons that allow them to move and adapt to various environments.