hairworm

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Trichostrongylus

(trik'ō-stron'ji-lŭs),
The hairworm, or bankrupt or black scour worm; an economically important genus (about 30 species) of small slender nematodes (family Trichostrongylidae) that inhabit the small intestine, in some cases the stomach, of a variety of herbivorous animals and gallinaceous birds. They burrow into the mucosa and suck blood; in large numbers they do serious damage, especially to young hosts.
[tricho- + G. strongylos, round]

hairworm

(hâr′wûrm′)
n.
2. Any of various slender parasitic nematode worms, especially those of the genus Trichostrongylus that infest the stomach and small intestine of cattle, sheep, and related animals, and those of the genus Capillaria that infest the digestive system of poultry and other animals.
References in periodicals archive ?
Considering the inventory done by Biota Project FAPESP (Steiner and Amaral, 1999), it is possible to infer that Japi Mountain is an important area to conserve unique species described for the state of Sao Paulo, like Nemertea Prostoma eilhardi (Montgomeri, 1894) (Forneris, 1999b) and Nematomorpha Paragordiusflavescens Linstow, 1906 (Forneris, 1999c), even with the low identification resolution of some less abundant taxa.
Nematomorpha were always preferred prey, but seldom were a major proportion of the diet or benthos.
Important for the determination of Nematomorpha species are cuticular characters such as the structure of the body cuticle or cuticular structures in the male posterior end.
Hairworms, or Gordioidea, are fresh water members of the Phylum Nematomorpha.
Key Words: Gordius difficilis, Gordius robustus, Phylum Nematomorpha, Lepomis megalotis, Salmo trutta, Centrarchidae, Salmonidae, Minnesota, Missouri
Phylum 4 Nematomorpha (Nematomorphs, Gordian Worms, Horsehair Worms)
The phylum Onychophora unites the primitive features of "worms," such as Nematoda and Nematomorpha, with those of the arthropods (Grimaldi & Engel, 2005).