When it is recorded
Jan0
Feb12
Mar80
Apr7
May73
Jun21
Jul150
Aug78
Sep30
Oct55
Nov29
Dec4
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Norfolk | England | 169 | |
| 2 | Cambridgeshire | England | 30 | |
| 3 | Northamptonshire | England | 27 | |
| 4 | Gwynedd | Wales | 3 | |
| 5 | Pembrokeshire | Wales | 2 | |
| 6 | Conwy | Wales | 2 | |
| 7 | Swansea | Wales | 2 | |
| 8 | Ceredigion | Wales | 1 | |
| 9 | Carmarthenshire | Wales | 1 |
213 England291 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 9 counties in all.
About this species
- Records since 2000
- 539
- Peak month
- July
- Counties with records
- 9
- Scientific name
- Dikerogammarus villosus
- Group
- Crustaceans
- NBN Atlas records since 2000
- 400
- Most recorded in
- Norfolk
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Malacostraca
- Order
- Amphipoda
- Family
- Gammaridae
- Genus
- Dikerogammarus
- Name with authority
- Dikerogammarus villosus (Sowinsky, 1894)
- Described
- 1894
- Contributing datasets
- 10
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q447913 · GBIF 4315705