👉 Catenulisporales are a group of protozoan worms that belong to the order Ctenophora, which also includes the sea anemones and other invertebrates that form the base of the marine food chain. These worms are characterized by their elongated body shape and segmented bodies, which are covered in fine hairs called cilia. They feed on a variety of microorganisms found in water, including bacteria, fungi, and protozoans.