Bucephalidae is a family of trematodes that parasitize fish. They lack suckers, having instead a muscular organ called a "rhynchus" at the front end which they use to attach to their hosts. The characteristics of the rhynchus are used to help define the genera of the family. It is one of the largest digenean families, with 25 genera containing hundreds of described species. Bucephalids are cosmopolitan, having been recorded all over the world. They are parasites of fish from freshwater, marine, and brackish water habitat types.
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.
Pseudopecoeloides is a genus of trematodes in the family Opecoelidae.
Transversotrema elegans is a species of trematodes found from species of the labrid genus Choerodon on Heron Island and Lizard Island. It is characterised by its number of vitelline follicles enclosed by its cyclocoel and by the size of its testicle.
Transversotrema giganticum is a species of trematodes found in scarids on Heron Island and Lizard Island. It is characterised by its number of vitelline follicles enclosed by its cyclocoel and by the size of its testicle.
Hamacreadium is a genus of trematodes in the family Opecoelidae. It is synonymous with Olivacreadium Bilqees, 1976. Species of Hamacreadium are endoparasitic in fish such as Lethrinus Cuvier, 1829.
Cainocreadium is a genus of trematodes in the family Opecoelidae. It has been synonymised with Apopodocotyle Pritchard, 1966, Cainocreadoides Nagaty, 1956, and Emmettrema Caballero y Caballero, 1946.
Neolebouria is a genus of trematodes in the family Opecoelidae.
Podocotyloides is a genus of trematodes in the family Opecoelidae.
Transversotrema is a genus of trematodes in the family Transversotrematidae.
Paramanteriella is a genus of trematodes in the family Opecoelidae.
Pedunculacetabulum is a genus of trematodes in the family Opecoelidae.
Trilobovarium is a genus of trematodes in the family Opecoelidae.
Jean-Lou Justine, French parasitologist and zoologist, is a professor at the National Museum of Natural History in Paris, France, and a specialist of fish parasites and invasive land planarians.
Lepocreadiidae is a family of trematodes in the order Plagiorchiida.
Lepotrema is a genus of trematodes in the family Lepocreadiidae.
Lepotrema acanthochromidis is a species of lepocreadiid digenean parasitic in the intestine of marine fish. It was described in 2018.
Lepotrema amansis is a species of lepocreadiid digenean parasitic in the intestine of marine fish. It was described in 2018.
Lepotrema amblyglyphidodonis is a species of lepocreadiid digenean parasitic in the intestine of marine fish. It was described in 2018.
Lepotrema hemitaurichthydis is a species of lepocreadiid digenean parasitic in the intestine of marine fish. It was described in 2018.
