Overview: Turbellarian platyhelminths (or, as they are known now amongcladistic systematists, free-living Platyhelminthes) comprise a widelydistributed assemblage of lower worms found in marine, freshwater, andeven occasionally in terrestrial habitats. The phylum Platyhelminthesmay be more widely known for its parasitic members since the majorparasitic groups of the tapeworms, flukes, and their relatives aremore speciose and have greater impact on everyday human life; but theturbellarians are more diverse and, as inhabitants of virtually anyaquatic habitat, are more widespread as well. Many of
|