leaf shaped unsegmented body, often complex life cycle; e.g. lung fluke.
The Class Trematoda is further organized into finer groupings including:
- Subclass (3): Aspidogastrea · Biddulphiophycidae · Digenea
- Order (10): Aspidogastrea · Azygiida · Dactylogyrida · Echinostomida · Fasciolatoidea · Not Assigned · Opisthorchiida · Plagiorchiida · Strigeatida · Strigeidida
- Species: ZipcodeZoo has pages for 1,513 species and subspecies in the Class Trematoda.
The Aspidogastrea (Ancient Greek: aspis ?shield?, ?ast?? gaster ?stomach/pouch?) 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 (cartilaginous and bony fishes and turtles). 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. [more]
The Echinostomida are an order of flatworms, belonging to the large group Digenea. [more]
The Plagiorchiida are a large order of flatworms. They belong to the Digenea, a large subclass of flukes. Unlike the related Echinostomida and Strigeidida, they contain relatively few significant parasites of humans. [more]
The Strigeidida are an order of flatworms, belonging to the large group Digenea. [more]
At least 260 species and subspecies belong to the Order Strigeidida.
More info about the Order Strigeidida may be found here.
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