Encyclopedia of Parasitology

Living Edition
| Editors: Heinz Mehlhorn

Amidostomum anseris and Relatives

  • Heinz Mehlhorn
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27769-6_3605-1


Greek: amido = enlarged, non-central; stoma = mouth; Latin: anser = goose.

Geographic Distribution/Epidemiology

Worldwide among farmed and free living geese.

Morphology/Life Cycle

The adults of A. anseris are characterized by a mouth capsule with three sharp teeth. Males reach a length of 10–17 mm and possess a bursa copulatrix with three lobes and two similarly long spicula (~200 μm) plus a gubernaculum. Females reach a length of 12–24 mm. Both sexes appear reddish-yellowish and live in the muscular stomach below the keratinoid layer of the stomach of geese and some other waterfowls. The eggs measure 80–110 μm × 50–80 μm and contain many blastomeres when excreted. Related species are A. acutum in the muscle stomach of geese and ducks (worldwide) and Epidomostomum uncinatum(with a reduced mouth capsule in the muscular stomach of ducks and geese (worldwide). The larva 3 develops inside the eggs when excreted on soil. At temperatures of ~20 °C it takes about 3 weeks until this...


Young Animal Free Living Muscle Stomach Young Bird Prepatent Period 
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Further Reading

  1. Enigk K, Dey-Hazra A (1968) Host specificity of Amidostomum anseris. Parasitol Res 31:266–275Google Scholar
  2. Enigk K, Dey-Hazra A (1969) Zum Verhalten der exogenen Entwicklungsformen von Amidostomum anseris. Arch Geflügelkd 33:259–273Google Scholar
  3. Kavetska KM et al (2011) Revision of the species complex Amidostomum acutum. Parasitol Res 109:105–117CrossRefPubMedPubMedCentralGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Institut für Zoomorphologie, Zellbiologie und ParasitologieHeinrich-Heine-UniversitätDüsseldorfGermany