👉 Typhlopoidea is a family of marine invertebrates that includes a wide range of species, including sea cucumbers and other crustaceans. They are known for their unique structure, which consists of an exoskeleton made up of hard, calcium-rich shelled structures called "shells," surrounded by a gelatinous, protective outer shell. Typhlopoidea is characterized by its complex lifestyle, with both feeding on plankton and other invertebrates as well as