When it is recorded
Jan110
Feb24
Mar355
Apr657
May1,814
Jun465
Jul822
Aug808
Sep2,074
Oct1,684
Nov542
Dec102
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Oxfordshire | England | 912 | |
| 2 | Northamptonshire | England | 651 | |
| 3 | North Yorkshire | England | 369 | |
| 4 | Surrey | England | 349 | |
| 5 | Suffolk | England | 348 | |
| 6 | West Berkshire | England | 335 | |
| 7 | Lincolnshire | England | 317 | |
| 8 | Essex | England | 314 | |
| 9 | Gloucestershire | England | 280 | |
| 10 | Norfolk | England | 268 | |
| 11 | Kent | England | 263 | |
| 12 | Nottinghamshire | England | 245 | |
| 13 | Dorset | England | 142 | |
| 14 | Cambridgeshire | England | 118 | |
| 15 | Devon | England | 118 |
9,452 England12 Scotland108 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 60 counties in all.
About this species
- Records since 2000
- 9,579
- Peak month
- September
- Counties with records
- 60
- IUCN Red List
- Least Concern
- Scientific name
- Pacifastacus leniusculus
- Also known as
- Columbia River Signal Crayfish, Klamath Signal Crayfish, Signal Crayfish
- Group
- Crustaceans
- NBN Atlas records since 2000
- 8,298
- Most recorded in
- Oxfordshire, Northamptonshire, North Yorkshire, Surrey, Suffolk, West Berkshire, Lincolnshire, Essex, Gloucestershire, Norfolk, Kent, Nottinghamshire +9
- Conservation designations
- Global Red List (JNCC)
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Malacostraca
- Order
- Decapoda
- Family
- Astacidae
- Genus
- Pacifastacus
- Name with authority
- Pacifastacus leniusculus (Dana, 1852)
- Described
- 1852
- Contributing datasets
- 26
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q693000 · GBIF 2226990