#4674 · 🐌 snails, slugs & other molluscs
Chestnut Slug
🇳🇱 Zwervende akkerslak ·Deroceras invadens
7 photos from iNaturalist (Creative Commons) · credits & licences
what is it?
Deroceras invadens is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Agriolimacidae. Until 2011, this widely distributed species was known as Deroceras panormitanum , and earlier as Deroceras caruanae or Agriolimax caruanae , but Reise et al. (2011) showed that these names refer to a distinct species of similar external appearance known at that time only from Sicily and Malta. Consequently, although the more widespread species was already well known, it then...
base stats
Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).
fun facts
- Spotted 21 times in the Netherlands on iNaturalist.
- 4,335 observations worldwide on iNaturalist.
fact sheet
- English
- Chestnut Slug
- Nederlands
- Zwervende akkerslak
- scientific name
- Deroceras invadens
- class
- Gastropoda
- order
- Stylommatophora
- family
- Agriolimacidae
- IUCN Red List
- LC · least concern
- sightings in NL
- 21
- sightings in Europe
- 209
- sightings worldwide
- 4,335
- GBIF records in NL
- 4,400
- weight
- —
- length
- —
- lifespan
- —
IUCN in Dutch: niet bedreigd. Blank means the sources don't say.
relatives· Agriolimacidae
Sources: iNaturalist taxon 366887, Wikidata Q5262901, GBIF 8745918, Wikipedia (EN), Wikipedia (NL). Intro text from Wikipedia (CC BY-SA 4.0).Updated 2026-10-24.