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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.
| RESULTS |  | | Phylum Platyhelminthes An introduction to the phylum with more pages about the Turbellaria, Monogenea, Digenea and Cestoda, from Animal Diversity Web.http://animaldiversity.ummz.umich.edu/platyhelminthes.html |
| 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.http://ourworld.compuserve.com/homepages/BMLSS/planaria.htm |
| Introduction to the Platyhelminthes Introduction to the Platyhelminthes, the flatworms: life in two dimensions. One page of text with a few photographs.http://www.ucmp.berkeley.edu/platyhelminthes/platyhelminthes.html |
| Meiofauna - Matthew Hooge A personal page with many beautiful photographs of free-living Platyhelminthes, including actin labelling.http://hooge.developmentalbiology.com/ |
| Platyhelminthes A summary of platyhelminth characteristics, with emphasis on the three parasitic classes.http://martin.parasitology.mcgill.ca/jimspage/biol/platy.htm |
| 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).http://www.mnhn.fr/mnhn/bpph/Data/Spermplaty/ |
| Platyhelminthes Hub Links to research articles and images.http://www.knowdeep.org/platyhelminthes/ |
| Fredrick the Flatworm Information and images of different types of Platyhelminthes (flatworms). [Javascript required]http://flatwormf.tripod.com/ |
| Monogenean Trematodes A short page about monogeneans parasitic in fishes and how to control them. Also available as PDF file.http://edis.ifas.ufl.edu/FA033 |
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Acanthocephala