MolluscIreland - land and freshwater
  • Galba (Galba) truncatula (O. F. Müller 1774) Dwarf pond snail or fluke snail
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Galba (Galba) truncatula
© Dr Roy Anderson

Map hosted by the National Biodiversity Data Centre, Waterford
To view the species profile on Biodiversity Maps and access the live map, please click on the map.


A small to medium-sized, slightly turreted, conical shell. Surface matt to slightly shiny, with slightly coarse growth lines crossed by a final spiral striation. Thin-shelled, colour brown. Ubiquitous in wet places

Key characteristics

  • A small to medium-sized turreted, conical shell
  • Whorls convex, sutures deep
  • Umbilicus open but very narrow
  • Shell mid brown, translucent with fine spiral striations


7-12 mm.

World Distribution

This has an exceptionally wide distribution in Europe and the northern hemisphere. It also occurs in the southern hemisphere and has been reported as native in east and south Africa (Appleton, 1996). Distribution type (northern hemisphere): Circumpolar Boreo-temperate (56) and Circumpolar Wide-boreal (36).

GBIF distribution map [open in new tab]

Irish Distribution

The sheep or flukesnail is the main vector of the liver fluke, Fasciola hepatica, in the British Isles and is ubiquitous and abundant in Ireland except at higher altitudes or in very impoverished conditions.


  • Amphibious by small streams and at the margins of a variety of wetlands and bodies of fresh water
  • Almost ubiquitous in damp field margins where it may crawl considerable distances from open water

Red List status

  • Least concern (lc).

Wikipedia link

Wikipedia page for Galba truncatula

 Anderson, R., (2016). Galba (Galba) truncatula (O. F. Müller 1774). [In] MolluscIreland. Accessed on 2024-06-21.