, Volume 62, Issue 3, pp 187–191

Chromosomal polymorphism in planarians (Turbellaria, Tricladida) and the plate tectonics of the western Mediterranean


  • E. J. De Vries
    • Institute of Taxonomic ZoologyUniversity of Amsterdam
  • J. Baguñà
    • Dept. de Genética, Facultat de BiologiaUniversitat de Barcelona
  • I. R. Ball
    • Institute of Taxonomic ZoologyUniversity of Amsterdam

DOI: 10.1007/BF00056435

Cite this article as:
De Vries, E.J., Baguñà, J. & Ball, I.R. Genetica (1984) 62: 187. doi:10.1007/BF00056435


In two populations of Dugesia (Schmidtea) mediterranea the third chromosome pair consists of two heteromorphous elements. This chromosomal polymorphism, which is common in other animal groups, was hitherto unknown in planarians.

The evolutionary and biogeographical significance of this chromosomal polymorphism is discussed, for the geographical distribution of the two aberrant populations may have relevance for the theories of microplate dispersal involving the western Mediterrancan.

Copyright information

© Dr W. Junk Publishers 1984