See also:

• Science: Biology: Flora and Fauna: Animalia: Pseudocoelomates  (2)
• Science: Biology: Microbiology: Parasitology  (17)

• Ben Hanelt's Gordian Worm Information - Discusses the distribution and life cycle of freshwater nematomorphs (Phylum Nematomorpha). Includes images and videos.
• Gordiacea: Horsehair Worms - Photograph of these worms, also known as cabbagehair, gordiid or gordian worms, with information on their habitat, identification and life cycle.
• Gordius spp: Horsehair Worms - Photograph and description of these long, slender worms, with information on their distribution, life cycle and importance.
• Horsehair Worms in Illinois - Short article about phylum Nematomorpha, the group of invertebrates more commonly called horsehair or gordian worms. Includes a photo.
• Nematomorpha - Information from Wikipedia on this phylum of free-living worms with parasitic larvae that are morphologically and ecologically similar to nematodes.