Mollusca : Gastropoda : Stylommatophora : TestacellidaeSnails and slugs

Testacella haliotidea Draparnaud, 1801

Shelled slug

Testacella haliotidea

Description: 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. 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).

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.

Ecology:

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

Key Identification Features:

  • A large yellowish-brown slug with small external shell perched near the tail
  • Foot fringe and sole whitish
  • Shell small, 7-8 mm. long and without a hooked apex

Red list status:

  • Vulnerable (VU).

Distribution Map from NBN: Testacella haliotidea at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Testacella haliotidea at iNaturalist World Species Observations database.

GBIF data for Testacella haliotidea | Classification: Gastropoda, Stylommatophora, Testacellidae, Testacella

Thumbnails for genus Testacella

 Anderson, R., 2024. Testacella haliotidea. Draparnaud, 1801. [In] MolluscIreland.
https://www2.habitas.org.uk/molluscireland/species.php?item=164. Accessed on 2024-12-26.