About Earthynature of Britain
  1. Home
  2. Species
  3. Dusky Slug
Species · Molluscs

Dusky Slug

Arion subfuscus

6,949Records since 2000
MayPeak month
118Counties with records
Least ConcernIUCN Red List

When it is recorded

Jan120
Feb164
Mar485
Apr1,039
May1,392
Jun1,133
Jul738
Aug597
Sep512
Oct446
Nov185
Dec119

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1North Yorkshire England1,013
2Highland Scotland386
3Nottinghamshire England317
4East Lothian Scotland261
5Gloucestershire England248
6Scottish Borders Scotland222
7York England176
8West Lothian Scotland162
9City of Edinburgh Scotland144
10Fife Scotland141
11Midlothian Scotland117
12Lincolnshire England115
13Argyll and Bute Scotland112
14Perth and Kinross Scotland100
15Leeds England99
4,118 England2,368 Scotland405 Wales53 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 118 counties in all.

About this species

Records since 2000
6,949
Peak month
May
Counties with records
118
IUCN Red List
Least Concern
Scientific name
Arion subfuscus
Group
Molluscs
Kingdom
Animalia
Phylum
Mollusca
Class
Gastropoda
Order
Stylommatophora
Family
Arionidae
Genus
Arion
Name with authority
Arion subfuscus (Draparnaud, 1805)
Described
1805
Contributing datasets
31

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q910504 · GBIF 2294099