Whipworm Trichuris Vulpis

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whipworm Trichuris vulpis Kingdom: Animalia Division/Phylum: Nematoda Class: Enoplea Order: Trichocephalida Family: Trichuridae ILLINOIS STATUS common, native FEATURES The whipworm is a roundworm parasite of the large intestine of foxes, coyotes and dogs. Its body has a long, thin, anterior end and a short, thick, posterior end. The worm is about one and three-fourths to three inches in length. Its brown or yellow eggs are lemon-shaped with a plug at each end. The eggs are resistant to disintegration and may survive for seven years in the soil. BEHAVIORS The whipworm may be found statewide in Illinois wherever its hosts live. The adult of this roundworm lives in the large intestine of its host. Its eggs are deposited in the host’s feces. Under favorable conditions, the larvae develop within the eggs in the soil to reach the infective stage in about three weeks. The host becomes infected by ingesting these eggs. Larvae are released in the host’s small intestine and stay there for two to 10 days. Then they move to the large intestine where they mature and begin releasing eggs in about three months. The adult burrows into the intestinal wall and feeds on blood, mucus and intestinal cells. Canids with heavy worm infections can be affected by diarrhea and weight loss. HABITATS Aquatic Habitats bottomland forests; marshes; peatlands; swamps; wet prairies and fens Woodland Habitats bottomland forests; coniferous forests; southern Illinois lowlands; upland deciduous forests Prairie and Edge Habitats black soil prairie; dolomite prairie; edge; gravel prairie; hill prairie; sand prairie; shrub prairie © Illinois Department of Natural Resources. 2017. Biodiversity of Illinois. .

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