Do Cnidarians Have A Skeleton?

Do Cnidarians Have A Skeleton? Do cnidarians have a skeleton? Cnidarians have a hydrostatic skeleton. The contractile fibers act against the fluid-filled gastrovascular cavity. The movements are like a balloon; the animal can be short and thick or long and thin. Cnidarians have a saclike gut and extracellular digestion. Do Cnidaria have an endoskeleton or