The phyletic status of the Paludicola

  • Ian R. Ball
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 6)


Is the assumption of the monophyly of the Paludicola (freshwater triclads) justified? There seems little doubt on morphological grounds of the close relationship between the Planariidae and the Dendrocoelidae but it is difficult to connect, phylogenetically, the Dugesiidae with these groups. A connection between the former and some of the latter has been unknowingly implied by the author in previous papers, thus raising an anomaly since this would mean that the Dugesiidae are not monophyletic.

Is it possible that the Dugesiidae and the Planariidae + Dendrocoelidae have arisen independently from marine ancestors? The implications of such a speculation are examined.


Turbellaria Tricladida Paludicola 


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Copyright information

© Dr W. Junk Publishers, The Hague 1981

Authors and Affiliations

  • Ian R. Ball
    • 1
  1. 1.Institute of Taxonomic ZoologyUniversity of AmsterdamAmsterdamThe Netherlands

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