Girardia tigrina

Girardia tigrina (Girard, 1850)

Languages: English



G. tigrina specimens have an equilateral-triangular head with two eyes in the middle surrounded by a large, free-pigmented area.

Author(s): Solà, Eduard
Rights holder(s): Solà, Eduard

Ecology and Distribution


It is an introduced species in Europe and Japan, where it has been found in Hokkaidô, Honshû, and Kyûshû (Sluys et al., 2010).

Author(s): Solà, Eduard
Rights holder(s): Solà, Eduard


  • Dugesia tigrina (Girard, 1850) (synonym)
  • Euplanaria tigrina (Girard, 1850) (synonym)
  • Planaria tigrina Girard, 1850 (synonym)


Benya, E., Leal-Zanchet A M., Santos W. H., Hauser J., & Erdtmann B. (2007).  Chromosome polymorphism and complements in populations of Girardia species (Platyhelminthes, Tricladida, Paludicola) from Southern Brazil. Brazilian Journal of Biology. 67, 951-955. Abstract
Claussen, D. L., & Walters L. M. (1982).  Thermal acclimation in the fresh water planarians, Dugesia tigrina and D. dorotocephala. Hydrobiologia. 94, 231-236.
de Campos-Velho, N. M., Lopes K. A., & Hauser J. (2004).  Morphometry of the eyes in regenerant of genus Dugesia (Platyhelminthes, Turbellaria, Dugesiidae). Brazilian journal of biology. 64, 1-9. Abstract
Kenk, R. (1941).  Induction of sexuality in the asexual form of Dugesia tigrina (Girard). Journal of Experimental Zoology. 87, 55-69.
Kenk, R. (1944).  The fresh-water triclads of Michigan. Miscellaneous publications / University of Michigan, Museum of Zoology. 60, 1-44.
Norden, A. W. (2008).  Freshwater Triclad Planarians (Turbellaria) from Plummers Island, Maryland. Bulletin of the Biological Society of Washington. 15, 11-12. Abstract
Sluys, R., Kawakatsu M., & de León R P. (2005).  Morphological stasis in an old and widespread group of species: Contribution to the taxonomy and biogeography of the genus Girardia (Platyhelminthes, Tricladida, Paludicola). Studies on Neotropical Fauna and Environment. 40, 155-180.
Sluys, R., Kawakatsu M., & Yamamoto K. (2010).  Exotic freshwater planarians currently known from Japan. Belgian Journal of Zoology. 140, 103-109. Abstract
Vila-Farré, M., Sluys R., Almagro ío, Handberg-Thorsager M., & Romero R. (2011).  Freshwater planarians (Platyhelminthes, Tricladida) from the Iberian Peninsula and Greece: diversity and notes on ecology. Zootaxa. 2779, 1-38.