Spanish slug
Arion vulgaris Moquin-Tandon, 1855
LCLeast Concernsnails and slugs
The spanish slug (Arion vulgaris) is a mollusc in the snails and slugs subgroup, belonging to the family Arionidae and the genus Arion. It is classified in the phylum Mollusca, class Gastropoda and superfamily Arionoidea, and was named by Moquin-Tandon, 1855.

Quick facts about the spanish slug
Other English names for this species are Vulgar slug and Lusitanian slug. On the IUCN Red List, the spanish slug is assessed globally as Least Concern (LC), which is not a threatened category.
- Weight
- Not recorded
- Length
- Not recorded
- Lifespan
- Not recorded
- Main food
- Not recorded
- Habitat
- Not recorded
- Young per litter or clutch
- Not recorded
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Photos of the spanish slug
Only freely licensed photos are shown. Each carries its creator and licence.







Where does the spanish slug live?
Not recorded
What is the spanish slug?
The Spanish slug (Arion vulgaris, but formerly widely referred to as Arion lusitanicus owing to a misidentification) is an air-breathing land slug, a terrestrial pulmonate gastropod mollusk in the family Arionidae, the roundback slugs.
Other vernacular names are Lusitanian slug, Iberian slug, and killer slug.
It is a large, conspicuous slug, which has spread across much of Europe since the 1950s and now reached North America. It may attain high densities and can be a serious horticultural and agricultural problem, and is considered an invasive species. The life cycle is annual, with adults appearing in summer and dying off before winter.
From the Wikipedia article “Spanish slug” (en.wikipedia.org/w/index.php?title=Spanish_slug&oldid=1371467347), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
What does the spanish slug sound like?
Is the spanish slug endangered?
The spanish slug is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species.
How is the spanish slug classified?
- kingdomAnimalia
- phylumMollusca
- classGastropoda
- familyArionidae
- genusArion
- SpeciesArion vulgaris Moquin-Tandon, 1855
Synonyms Arion ater var. limbata, Arion lusitanicus, Arion rufus var. vulgaris, Arion rufus vulgaris, Arion vulgaris
Other names and names in other languages (35)
- Lusitanian slugEnglish
- Vulgar slugEnglish
- plzák španělskýCzech
- DræbersneglDanish
- Iberisk skovsneglDanish
- KapuzinerschneckeGerman
- Lusitanische WegschneckeGerman
- Spanische WegschneckeGerman
- Ισπανικός γυμνοσάλιαγκαςGreek
- Babosa europeaSpanish
- Hispaania teetiguEstonian
- espanjansiruetanaFinnish
- Loche communeFrench
- Loche méridionaleFrench
- Španjolski pužCroatian
- Španjolski prpoljCroatian
- Spanyol csupaszcsigaHungarian
- Limaccia RossaItalian
- Ispaninis arionasLithuanian
- Spānijas kailgliemezisLatvian
- brunskogsneglNorwegian Bokmål
- brunskogsnigelNorwegian Bokmål
- iberiaskogsneglNorwegian Bokmål
- Spaanse wegslakDutch
- iberiaskogsnigelNorwegian Nynorsk
- ślinik pospolityPolish
- Limax spaniolRomanian
- Моложень испанскийRussian
- Испанский слизеньRussian
- slizovec iberskýSlovak
- španski lazarSlovenian
- mördarsnigelSwedish
- spansk skogssnigelSwedish
- Маслюк іспанськийUkrainian
- Слимак іспанськийUkrainian
Catalogue of LifeWikipediaiNaturalistTAXREFWikidataIUCN Red List
Relatives of the spanish slug
Other species in the same genus Arion.

Black slug
Arion ater
Dusky arion
Arion fuscus
Garden slug
Arion hortensis
Glade slug
Arion intermedius
Grey garden slug
Arion circumscriptus
Darkface slug
Arion distinctus
CompareSpanish slug vs Black slugSpanish slug vs Dusky arionSpanish slug vs Garden slugSpanish slug vs Glade slug
Common questions
Each answer is written from the sourced facts on this page, and only where they hold the answer.
What kind of animal is the spanish slug?
The spanish slug is a mollusc in the snails and slugs subgroup. It belongs to the class Gastropoda and the family Arionidae.
What is the scientific name of the spanish slug?
The scientific name of the spanish slug is Arion vulgaris, placed in the genus Arion.
Who named Arion vulgaris and when?
Arion vulgaris was named by Moquin-Tandon, 1855.
Is the spanish slug endangered?
No. The spanish slug is assessed globally as Least Concern (LC) on the IUCN Red List, which is not a threatened category.
What other names does the spanish slug have?
The spanish slug is also called the Vulgar slug and the Lusitanian slug.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe · CC BY 4.0 · 2.0
Chauvier, Y., Adde, A., Bergamini, A. et al. (2025) TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe. Zenodo. https://doi.org/10.5281/zenodo.15063844 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Spanish slug (Arion vulgaris). Retrieved from https://creaturedata.com/animals/spanish-slug
“Spanish slug (Arion vulgaris).” CreatureData, 2026, https://creaturedata.com/animals/spanish-slug.
@misc{spanish_slug_2026,
title = {Spanish slug (Arion vulgaris)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/spanish-slug},
note = {Data as of 2026-11-11}
}