The Probert Encyclopaedia of Nature

PHYLUM PLATYHELMINTHES

Phylum platyhelminthes is the family of flatworms. These are triplobastic acoelomate animals. They are usually small and leaf-like shaped. The alimentary canal has a single aperture, the mouth. Nitrogenous excretion and osmo-regulation are carried out by a flame-bulb system. These animals have a complex reproductive system, which is usually hermaphrodite.
Research Phylum platyhelminthes