The Phylum Platyhelminthes is divided into two groups: cestodes (tapeworms) and trematodes (flukes). Tapeworms live in vertebrate intestines, their larval forms can be found the flesh of animals that these eat. adult tapeworm has no digestive tract instead absorbs nutrients through its body surface. worm's head, or scolex, a mechanism for attaching to host's intestinal wall. Knowledge basic epi...

Microturbellarians typically belong to the benthos and may occur in a wide variety of environments. They are abundant in freshwater and marine ecosystems and may occur in moist terrestrial habitats. However, turbellarians are seldom taken into account in studies of biodiversity. Most studies on Brazilian microturbellarians had taxonomical purposes and were done in the years 1940-1950. Thus, inf...