is a tapeworm a vertebrate or invertebrate
Cestoda. (invertebrate zoology). A subclass of tapeworms including most members of the class Cestoidea; all are endoparasites of vertebrates. 1  Facebook.2  Twitter.estoda. (invertebrate zoology). A subclass of tapeworms including most members of the class Cestoidea; all are endoparasites of vertebrates. 1  Facebook.