DNA analysis on 18S rRNA partial sequence arrangements was also carried out, and the gordiid worm was assumed to be close to the genus Gordius based on a phylogenic tree analysis. (Nematomorpha: Gordiidae) based on the characteristic morphologies of cross sections and areole on the cuticle.

The worm was determined to be a male worm having a bi-lobed tail and had male gonads in cross sections. Following the worm analysis using light and scanning electron microscopes, the morphological classification was re-evaluated with molecular analysis. In the present study, the used gordian worm was found in the feces of a dog (5-month old, male) in July 2014. They are parasitic in arthropods during their juvenile stage.

(Nematomorpha: Gordiida), Passed in a Canine Feces Eui-Ju Hong1, Cheolho Sim2, Joon-Seok Chae3, Hyeon-Cheol Kim4, Jinho Park5, Kyoung-Seong Choi6, Do-Hyeon Yu7, Jae-Gyu Yoo8, Bae-Keun Park1,* College of Veterinary Medicine, Chungnam National University, Daejeon 35015, Korea 2Department of Biology, Baylor University, Waco, Texas 76798, USA 3Laboratory of Veterinary Internal Medicine, BK21 PLUS Program for Creative Veterinary Science Research and College of Veterinary Medicine, Seoul National University, Seoul 03080, Korea 4College of Veterinary Medicine, Gangwon National University, Chuncheon 24289, Korea 5 College of Veterinary Medicine, Chonbuk National University, Cheongju 28644, Korea 6College of Ecology and Environmental Science, Kyungpook National University, Sangju 37224, Korea 7College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea 8Laboratory of Veterinary Clinics, National Institute of Animal Science Rural Development Administration, Gwangju 61186, Korea 1 Abstract: Nematomorpha, horsehair or Gordian worms, include about 300 freshwater species in 22 genera (Gordiida) and 5 marine species in 1 marine genus (Nectonema). 6: 719-724, December 2015 ▣ CASE REPORT A Horsehair Worm, Gordius sp.

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