MolluscIreland - land and freshwater
  • Aegopinella nitidula (Draparnaud 1805) Smooth glass snail
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Aegopinella nitidula
© Dr Roy Anderson
Aegopinella nitidula
© Dr Roy Anderson

Map hosted by the National Biodiversity Data Centre, Waterford
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A medium-sized waxy, rather dull shell of 4 moderately convex whorls with the last expanding strongly. Paler, whitish, beneath. Umbilicus wide. Common.

Key characteristics

  • A medium-sized, depressed, waxy shell
  • Whorls moderately convex with last expanding quickly - umbilicus deep
  • Colour red-brown to mid brown with paler, whitish flush on the underside and around the umbilicus
  • Shell duller and of a different colour than Oxychilus of the same size
  • Animal slate grey to deep blue-grey with mantle of a similar shade
  • Shell surface has regular radial growth lines but spiral striae weak

Size

8-10 mm.

World Distribution

Widespread in western Europe including the British Isles, Low Countries, N. Germany and southern Scandinavia. Distribution type: Oceanic Temperate (71).

Irish Distribution

Widespread and common.

Ecology

  • Commonest in woodland, less so where human disturbance is strong
  • Elsewhere in shaded or rocky places
  • In Ireland synanthropic only around abandoned crofts in very exposed or base-deficient terrain
  • Specimens with clear, greenish shells occur sporadically (var. helmi Alder)

Red List status

  • Least concern (lc).

Wikipedia link

Wikipedia page for Aegopinella nitidula

 Anderson, R., (2016). Aegopinella nitidula (Draparnaud 1805). [In] MolluscIreland.
http://www.habitas.org.uk/molluscireland/species.asp?ID=5 Accessed on 2017-10-20.