Key to Class and Order of Australian Aquatic Flatworms

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Key to Class and Order of Australian Aquatic Flatworms This key is apart of the Keys to Australian Aquatic Macro-Invertebrates. The phylum Platyhelminthes (flatworms) is divided into three classes and a large number of orders and families.  The class Turbellaria contains free-living and commensal species, and the majority of aquatic flatworms are members of this…