Cestoidea

[Sarah]

A class of parasitic worms (Platelminthes) of which thetapeworms are the most common examples. The body is flattened, andusually but not always long, and composed of numerous joints orsegments, each of which may contain a complete set of male and femalereproductive organs. They have neither mouth nor intestine. SeeTapeworm. [Written also Cestoda.]