Ben Hanelt's Gordian Worm Information
- Discusses the distribution and life cycle of freshwater nematomorphs (Phylum Nematomorpha). Includes images and videos.
- http://bsweb.unl.edu/labs/janovy/ben/info.html

Horsehair Worms in Illinois
- Short article about phylum Nematomorpha, the group of invertebrates more commonly called horsehair or gordian worms. Includes a photo.
- http://www.inhs.uiuc.edu/chf/pub/surveyreports/mar-apr95/page4.html