Rohde, Klaus Department of Zoology, University of New England, Armidale, New South Wales, Australia.
- Morphology and life history
- Phylogeny and taxonomy
- Economic and medical importance
- Links to Primary Literature
- Additional Readings
A large group of flukes (parasitic flatworms) within the class Trematoda, with some thousands of described and probably many thousands of not yet described species. The Digenea range from about 0.2 mm (0.008 in.) to over 1 m (3.3 ft) in length. They have an indirect life cycle, with at least one intermediate host and a final host. In contrast to the Aspidogastrea, larvae multiply in the first intermediate host. Final hosts include all groups of marine, freshwater, and terrestrial vertebrates; first intermediate hosts are mollusks (snails and bivalves) and exceptionally an annelid; second intermediate hosts include all groups of vertebrates, mollusks, and other invertebrates. Most species infect the digestive tract, but many occur in the liver, lungs, blood system, and body cavity. They also are found under the scales of fish and in the nasal passages of marine mammals. Many species have great importance as agents of disease in humans, livestock, fowl, and marine and freshwater fish. See also: Aspidogastrea; Platyhelminthes; Trematoda
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Its dedicated editorial team is led by Sagan Award winner John Rennie. Contributors include more than 9000 highly qualified scientists and 42 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 17,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information