, Volume 132, Issue 1, pp 1–12 | Cite as

Comments on a phylogenetic system of the Platyhelminthes

  • Ulrich Ehlers


Using the principles and methods of phylogenetic systematics, the phylogenetic relationships among the basic closed descendent communities (monophyla) of the taxon Platyhelminthes are discussed.

A phylogenetic system of the Platyhelminthes is presented and several hypothesized autapomorphies of the well-known main subordinated monophyla of free-living and parasitic platyhelminths are named. A monophylum ‘Turbellaria’ does not exist in reality.


Platyhelminthes phylogenetic system frontal organ epidermis ciliary epidermal receptors protonephridium 


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Copyright information

© Dr W. Junk Publishers 1986

Authors and Affiliations

  • Ulrich Ehlers
    • 1
  1. 1.II. Zoologisches Institut and Museum der UniversitätGöttingenFederal Republic of Germany

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