Page last updated Wed 05 Feb 2020


Use the links to navigate the hierarchy of invertebrate classification.

  Family Gordiidae

Genus Gordius

    Species G. difficilis -- Wisconsin!
    Species G. robustus -- Wisconsin!
    Species G. albopunctatus
    Species G. angulatus
    Species G. aquaticus
    Species G. balcanicus
    Species G. borisphaenicus
    Species G. dectici
    Species G. digitatus
    Species G. dimorphus
    Species G. elongiporus
    Species G. germanicus
    Species G. helveticus
    Species G. impressus
    Species G. karwendeli
    Species G. muelleri
    Species G. panighettensis
    Species G. paranensis
    Species G. pavlovskii
    Species G. pesici
    Species G. pioltii
    Species G. plicatulus
    Species G. serratus
    Species G. setiger
    Species G. sinareolatus
    Species G. tatrensis
    Species G. tirolensis
    Species G. undulatus
    Species G. villoti
    Species G. zwicki

Taxon Information

The Genus Gordius has been reported (or is assumed) to occur in fresh waters. This taxon has been reported from Wisconsin.

(These statements were generated automatically from the WInvertebrates database.)

Literature Records

  • Gordius, (Poinar et al., 2008).
  • Gordius, (Bolek & Coggins, 2002).
  • Gordius, four species, one common and widespread, the others rare in eastern states [North America] (Smith, 2001).
  • Gordius, [Wisconsin] (Watermolen & Haen, 1994).
  • Gordius, (Chitwood, 1959).


  • Poinar, G., jr. 2008. Global diversity of hairworms (Nematomorpha: Gordiaceae) in freshwater. Hydrobiologia 595: 79-83. [Available online]
  • Bolek, M.G. & J.R. Coggins. 2002. Seasonal occurrence, morphology, and observations on the life history of Gordius difficilis (Nematomorpha: Gordioidea) from southeastern Wisconsin, United States. Journal of Parasitology 88: 287-294. [Available online]
  • Smith, D.G. 2001. Nematomorpha (Horsehair worms, gordian worms). Pennak's Freshwater Invertebrates of the United States, 4th edition: 217-226.
  • Watermolen, D.J. & G.L. Haen. 1994. Horsehair worms (Phylum Nematomorpha) in Wisconsin, with notes on their occurrence in the Great Lakes. Journal of Freshwater Ecology 9(1): 7-11. [Available online]
  • Chitwood, B.G. 1959. Gordiida. [in] W.T. Edmondson (ed.). Ward & Whipple Fresh-Water Biology, 2nd edition: 402-405.

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