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Home : Science : Biology : Flora and Fauna : Animalia : Platyhelminthes
Platyhelminthes
Phylum Platyhelminthes is commonly known as the flatworms, including free-living flatworms (class Turbellaria), as well as mostly parasitic flukes and tapeworms (classes Monogenea, Trematoda, and Cestoda). Collectively, they are primitive organisms that are flat, soft-bodied, and symmetrical.
Recent molecular studies suggest that the
Platyhelminthes as a whole may have arisen as two independent groups from different ancestral groups. If this is correct, most of the flatworms may belong to the Lophotrochozoa, a large group within the animal kingdom that includes molluscs and earthworms, while the rest belong near the base of animal diversity.
Recent molecular studies suggest that the
Platyhelminthes as a whole may have arisen as two independent groups from different ancestral groups. If this is correct, most of the flatworms may belong to the Lophotrochozoa, a large group within the animal kingdom that includes molluscs and earthworms, while the rest belong near the base of animal diversity.
Sites in Platyhelminthes
Phylum Platyhelminthes
An introduction to the phylum with more pages about the Turbellaria, Monogenea, Digenea and Cestoda, from Animal Diversity Web.
Flatworms: British Marine Life Study Society
One page about a planarian and one page about the life cycle of the digenean Cryptocotyle lingua, with a few photographs.
Introduction to the Platyhelminthes
Introduction to the Platyhelminthes, the flatworms: life in two dimensions. One page of text with a few photographs.
Meiofauna - Matthew Hooge
A personal page with many beautiful photographs of free-living Platyhelminthes, including actin labelling.
Platyhelminthes
A summary of platyhelminth characteristics, with emphasis on the three parasitic classes.
Bibliography on Ultrastructure of Spermatozoa of Parasitic Platyhelminthes
A tool for future research on the parasitic Platyhelminthes (Aspidogastrea, Digenea, Polyopisthocotylea, Monopisthocotylea, Gyrocotylidea, Amphilinidea, and Eucestoda).
Platyhelminthes Hub
Links to research articles and images.
Fredrick the Flatworm
Information and images of different types of Platyhelminthes (flatworms). [Javascript required]
Monogenean Trematodes
A short page about monogeneans parasitic in fishes and how to control them. Also available as PDF file. |
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cross references
Science : Biology : Flora and Fauna : Animalia : Acoelomates Science : Biology : Microbiology : Parasites