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Lumbricus terrestris is a large, reddish worm species thought to be native to Western Europe, now widely distributed around the world (along with several other lumbricids).
Free-living flatworms are mostly predators, and live in water or in shaded, humid terrestrial environments, such as leaf litter. Cestodes (tapeworms) and trematodes (flukes) have complex life-cycles, with mature stages that live as parasites in the digestive systems of fish or land vertebrates , and intermediate stages that infest secondary hosts.
Main article: Human parasite Endoparasites Protozoan organisms Common name of organism or disease Latin name (sorted) Body parts affected Diagnostic specimen Prevalence Source/Transmission (Reservoir/Vector) Granulomatous amoebic encephalitis and Acanthamoeba keratitis (eye infection) Acanthamoeba spp. eye, brain, skin culture worldwide contact lenses cleaned with contaminated tap water ...
The series also includes several Check Lists of British Insects. All books contain line drawings, with the most recent volumes including colour photographs. In recent years, new volumes in the series have been published by Field Studies Council, and benefit from association with the AIDGAP identification guides and Synopses of the British Fauna.
S. mansoni and other schistosomes are the only flukes or flatworms that exhibit sex separation as they exist as male and female individuals as in dioecious animals. [10] [11] However, they are not truly dioecious since the adults live in permanent male-female pairs, a condition called in copula.
Schistosoma is a genus of trematodes, commonly known as blood flukes.They are parasitic flatworms responsible for a highly significant group of infections in humans termed schistosomiasis, which is considered by the World Health Organization to be the second-most socioeconomically devastating parasitic disease (after malaria), infecting millions worldwide.
Bipalium species are predatory.Some species prey on earthworms, while others may also feed on mollusks. [10] [11] These flatworms can track their prey. [12]When captured, earthworms begin to react to the attack, but the flatworm uses the muscles in its body, as well as sticky secretions, to attach itself to the earthworm to prevent escape.
Microplana scharffi, like all flatworms, is an unsegmented, soft-bodied bilaterian without a body cavity, and with no specialized circulatory or respiratory organs. [2] Like other members of the Geoplanidae, it is dorso-ventrally flattened and creeps along with the whole of its ventral surface in contact with the substrate.