MolluscIreland - land and freshwater
  • Candidula intersecta (Poiret 1801) Wrinkled snail
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Candidula intersecta
© Dr Roy Anderson
Candidula intersecta
© Dr Roy Anderson

Map hosted by the National Biodiversity Data Centre, Waterford
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A slightly globular, strongly depressed shell of 5-6 whorls. Whorls convex with shallow sutures, slightly angled at the periphery. Umbilicus moderately wide. Mouth nearly circular with a white internal rib and with joined to the preceding whorl at an obtuse angle. Surface white to yellow-brown, opaque with strong, irregular radial ribbing and marked with dark spiral bands and blotches. Widespread in dry pasture and dunes.

Key characteristics

  • A slightly globular, strongly depressed shell of 5-6 whorls
  • Whorls convex with shallow sutures
  • Shell moderately strong, opaque, coloured white to yellow-brown with dark spiral bands and blotches
  • Whorls slightly shouldered often with a pale streak along the periphery
  • Mouth nearly circular, meeting the next whorl at an obtuse angle
  • Surface with strong regular radial ribbing

Size

7-12 mm.

World Distribution

The natural range of this species is Mediterranean and it is an early introduction to northern Europe, where it occurs mainly in countries bordering the North Sea.

Irish Distribution

Common on the southern part of the central plain but elsewhere (and off the limestone) exclusively coastal, in dunes etc.

Ecology

  • A xerothermic species requiring dry, fairly warm conditions
  • Found widely on coastal dunes, also on dry field margins, waste places and quarries inland

Red List status

  • Least concern (lc).

Wikipedia link

Wikipedia page for Candidula intersecta

 Anderson, R., (2016). Candidula intersecta (Poiret 1801). [In] MolluscIreland.
http://www.habitas.org.uk/molluscireland/species.asp?ID=48 Accessed on 2017-12-14.