Aspidogastridae | |
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Superfamily: | Aspidogastrioidea |
Family: | Aspidogastridae |
Aspidogastridae is a family of trematodes in the order Aspidogastrida.
Digenea is a class of trematodes in the Platyhelminthes phylum, consisting of parasitic flatworms with a syncytial tegument and, usually, two suckers, one ventral and one oral. Adults commonly live within the digestive tract, but occur throughout the organ systems of all classes of vertebrates. Once thought to be related to the Monogenea, it is now recognised that they are closest to the Aspidogastrea and that the Monogenea are more closely allied with the Cestoda. Around 6,000 species have been described to date.
The Aspidogastrea is a small group of flukes comprising about 80 species. It is a subclass of the trematoda, and sister group to the Digenea. Species range in length from approximately one millimeter to several centimeters. They are parasites of freshwater and marine molluscs and vertebrates. Maturation may occur in the mollusc or vertebrate host. None of the species has any economic importance, but the group is of very great interest to biologists because it has several characters which appear to be archaic.
Stichocotyle is a monospecific genus of trematodes, in the monospecific family Stichocotylidae, which is itself in the monotypic order Stichocotylida. It comprises the single species Stichocotyle nephropis, which is an internal parasite of elasmobranch fishes. It was originally described from the Norway lobster, Nephrops norvegicus, by J. T. Cunningham in 1884. This flatworm is distinguished by a single ventral row of well separated suckers.
Cyclocoelidae is a family of trematodes in the order Plagiorchiida.
Plagiorchiida is a large order of trematodes, synonymous to Echinostomida. They belong to the Digenea, a large subclass of flukes. This order contains relatively few significant parasites of humans.
Echinostomata is a suborder of the parasitic flatworm order Plagiorchiida. The suborder contains numerous species that are parasitic in humans.
Opisthorchiidae is a family of digenean trematodes. Opisthorchiidae have cosmopolitan distribution.
Aspidogaster conchicola is a trematode parasite of the Aspidogastrea subclass that commonly infects freshwater clams. It has not been well studied since it is of little economic or medical importance, but A. conchicola and its fellow aspidogastreans are of significant biological importance since they may represent a step between free-living and parasitic organisms.
Opisthorchiata is a suborder of flatworms in the subclass Digenea.
Opecoelidae is a family of trematodes. It is the largest digenean family with over 90 genera and nearly 900 species, almost solely found in marine and freshwater teleost fishes. It was considered by Bray et al. to belong in the superfamily Opecoeloidea Ozaki, 1925 or the Brachycladioidea Odhner, 1905.
The Diplectanidae are a family of monopisthocotylean monogeneans. They are all parasitic on the gills of fish. Diplectanids are small animals, generally around 1 mm in length. As parasites, they can be extremely numerous, up to several thousand on an individual fish.
Telorchis is a genus of trematode parasites found in many herps, comprising around 70 species. This parasite is an indirect parasite, with a snail intermediate host and a reptile or amphibian definitive host. Typically found in the gastrointestinal tract of their definitive host, telorchids attach to the wall of the intestinal tract with their ventral sucker, or acetabulum.
Telorchiidae is a family of trematode parasites.
Multicalycidae is a family of trematodes in the order Aspidogastrida. It consists of one genus, Multicalyx Faust & Tang, 1936.
Allopodocotyle is a genus of trematodes in the family Opecoelidae.
Echinostomatidae is a family of trematodes in the order Plagiorchiida, first described in 1899.
Gorgoderidae is a family of trematodes in the order Plagiorchiida.
Echinochasmus is a genus of trematodes in the family Echinochasmidae.
Aspidogastrida is an order of trematodes in the subclass Aspidogastrea.
Echinostomatinae is a subfamily of trematodes in the order Plagiorchiida, first described in 1899.