MolluscIreland - land and freshwater
  • Testacella (Testacella) haliotidea Draparnaud 1801 Shelled slug
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Testacella (Testacella) haliotidea
© Dr Roy Anderson
Testacella (Testacella) haliotidea
© 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.


Generally larger than the other two species, dull creamy-white or yellowish above without darker markings or with only faint brownish spots. Foot fringe and sole yellowish or whitish. Shell small and nearly triangular, 7-8 mm. long. Rare but very probably under-recorded.

Key characteristics

  • A large yellowish-brown slug with small external shell perched near the tail
  • -Colour not as variable as in the other species, yellowish to dull creamy-white without spotting, or at most with a scattering of pale brown spots
  • Foot fringe and sole whitish
  • Shell small, 7-8 mm. long and without a hooked apex


80-120 mm.

World Distribution

Distributed from the British Isles along coasts in Europe to north Africa and into the western Mediterranean. Distribution type: Mediterranean-Atlantic (91).

GBIF distribution map [open in new tab]

Irish Distribution

This species has always been localised and rare in Ireland with sites mainly in the south and west. There is only a single recent record, for Blarney Co. Cork.


  • Like other Testacella, a species of rich, deep loams where it predates earthworms.

Red List status

  • Vulnerable (VU).

Wikipedia link

Wikipedia page for Testacella haliotidea

 Anderson, R., (2016). Testacella (Testacella) haliotidea Draparnaud 1801. [In] MolluscIreland. Accessed on 2024-03-02.