…a class of typically free-living flatworms which have a ciliated surface and a simple branched gut with a single opening…
…an orange or yellow terrestrial flatworm up to 8 cm in length, accidentally introduced from Australia to Britain where it is destroying earthworm populations…
…a speckled brown terrestrial flatworm up to 15 cm in length, accidentally introduced from New Zealand to Britain where it is destroying earthworm populations…
…a free-living flatworm which has a three-branched intestine and a tubular pharynx, typically located halfway down the body…
…a free-living flatworm of an order characterized by having a gut with three branches, including the planarians…
