Category:Trematodea

Trem`a*to"de*a, n. pl. Etym: [nl., from gr. (zoöl.)

Defn: an extensive order of parasitic worms. They are found in the Internal cavities of animals belonging to all classes. Many species Are found, also, on the gills and skin of fishes. A few species are Parasitic on man, and some, of which the fluke is the most important, Are injurious parasites of domestic animals. The trematodes usually Have a flattened body covered with a chitinous skin, and are Furnished with two or more suckers for adhesion. Most of the species Are hermaphrodite. Called also trematoda, and trematoidea. See fluke, Tristoma, and cercaria.