Clades:
Platyhelminthes;
Platyzoa;
Protostomia;
Animals.
CestodaEnglish: Cestodes; Tapeworms.
Zoology: complex life-cycles, with mature stages that live as parasites in the digestive systems of fish or land vertebrates, and intermediate stages that infest secondary hosts; generate vast numbers of hermaphroditic, segment-like proglottids which detach when mature, are excreted and then release eggs.