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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.
Rugogastridae is a family of trematodes in the order Aspidogastrida. It consists of a single genus, Rugogaster Schell, 1973.
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.
Opisthorchiidae is a family of digenean trematodes. Opisthorchiidae have cosmopolitan distribution.
Gyrodactylidae is a family of flatworms in the order Gyrodactylidea.
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.
Lamellodiscus is a genus of monopisthocotylean monogeneans in the family Diplectanidae; all species of Lamellodiscus are small worms, parasitic on the gills of teleost fish.
Multicalycidae is a family of trematodes in the order Aspidogastrida. It consists of one genus, Multicalyx Faust & Tang, 1936.
Aspidogastridae is a family of trematodes in the order Aspidogastrida.
Plectanocotylidae is a family of polyopisthocotylean monogeneans. All the species in this family are parasitic on the gills of marine fish.
Allopodocotyle is a genus of trematodes in the family Opecoelidae.
Dactylostomum is a genus of trematodes in the family Opecoelidae. It is synonyised with Opedunculata Dwivedi, 1975.
Fairfaxia is a genus of trematodes in the family Opecoelidae.
Helicometra is a genus of trematodes in the class Opecoelidae. It is synonymous with AllostenoperaBaeva, 1968, MetahelicometraYamaguti, 1971, and StenoperaManter, 1933. Its type species is H. fasciata(Rudolphi, 1819). They are distinguished by their unique spiral uterus, from which their name is derived.
Transversotrematidae is a family of trematodes in the order Plagiorchiida. It is the only family in the superfamily Transversotrematoidea, which is the only superfmaily in the suborder Transversotremata. It has been synonymised with Circuitiocoeliidae Wang, 1981, Squamacolidae Pan & Wang, 1985, and Transversotrematinae Witenberg, 1944.
Gymnophallidae is a family of trematodes in the order Plagiorchiida.
Fundulotrema is a genus of monogeneans in the family Gyrodactylidae.
Aephnidiogenidae is a family of trematodes in the order Plagiorchiida.
Ancyrocephalidae is a family of monogenean flatworms. The family is considered as a "temporary name" in WorMS but includes a large number of genera and species.
References
- ↑ Dollfus, R. P. (1958). Cours d'helminthologie. I. Trematodes. Sous-classe Aspidogastrea. Annales de Parasitologie Humaine et Comparée, 33(4), 305–395.
- 1 2 Poche, F. (1907). Einige Bemerkungen zur Nomenklatur der Trematoden. Zoologischer Anzeiger, 31, 124-126.
- ↑ Gibson, D. & Chinabut, S. (1984). Rohdella siamensis gen. et sp. nov. (Aspidogastridae: Rohdellinae subfam. nov.) from fresh water fishes in Thailand, with a reorganization of the classification of the subclass Aspidogastrea. Parasitology, 88(3), 383–393.
- ↑ Schell, S. C. (1973). Rugogaster hydrolagi gen. et sp. n. (Tremtoda: Aspidobothrea: Rugogastridae fam. n.) from the ratfish Hydrolagus collei (Lay & Bennett, 1839). The Journal of Parasitology, 59, 803–805.
