Trematoda: Difference between revisions

There are 18,000<ref name="Cribb2001">{{cite book |last=Littlewood D T J |author2=Bray R. A. |title=Interrelationships of the Platyhelminthes |series=Systematics Association Special Volume |volume=60 |edition=1 |year=2000 |publisher=CRC |isbn=978-0-7484-0903-7|pages=168–185 |chapter=The Digenea}}</ref> to 24,000<ref name="PoulinMorand2004">{{cite book |last=Poulin |first=Robert |author-link=Robert Poulin (zoologist) |author2=Serge Morand |title=Parasite Biodiversity |year=2005 |publisher=Smithsonian |isbn=978-1-58834-170-9 |pages=216}}</ref> known species of trematodes, divided into two subclasses — the [[Aspidogastrea]] and the [[Digenea]]. Aspidogastrea is the smaller subclass, comprising 61 species. These flukes mainly infect [[Bivalvia|bivalves]] and [[Osteichthyes|bony fishes]].<ref name=biotaxa>https://www.biotaxa.org/Zootaxa/article/view/zootaxa.3918.3.2 {{bare URL inline|date=April 2023}}</ref> Digenea — which comprise the majority of trematodes — are found in certain [[Mollusca|mollusks]] and [[vertebrate]]s.